def test_fm_deemph():
top = gr.top_block()
src = blocks.null_source(gr.sizeof_float)
deemph = analog.fm_deemph(30e3, 75e-6)
probe = blocks.probe_rate(gr.sizeof_float)
top.connect(src, deemph, probe)
return top, probe
def test_fm_deemph():
top = gr.top_block()
src = blocks.null_source(gr.sizeof_float)
deemph = analog.fm_deemph(30e3, 75e-6)
probe = blocks.probe_rate(gr.sizeof_float)
top.connect(src, deemph, probe)
return top, probe
def __init__(self):
gr.top_block.__init__(self, "Top Block")
##################################################
# Variables
##################################################
self.samp_rate = samp_rate = 2400000
self.resamp_rate = resamp_rate = 200000
self.audio_rate = audio_rate = 48000
self.audio_interp = audio_interp = 4
self.audio_gain_0 = audio_gain_0 = 5
##################################################
# Blocks
##################################################
self.rational_resampler_xxx_0 = filter.rational_resampler_ccc(
interpolation=resamp_rate,
decimation=samp_rate,
taps=None,
fractional_bw=None,
)
self.low_pass_filter_0 = filter.fir_filter_ccf(
1,
firdes.low_pass(1, samp_rate, resamp_rate / 2, resamp_rate / 20,
firdes.WIN_HAMMING, 6.76))
self.blocks_wavfile_source_0 = blocks.wavfile_source(
sys.argv[1], False)
self.blocks_wavfile_sink_0 = blocks.wavfile_sink(
sys.argv[2], 1, audio_rate, 8)
self.blocks_multiply_const_vxx_0 = blocks.multiply_const_vff(
(audio_gain_0, ))
self.blocks_float_to_complex_0 = blocks.float_to_complex(1)
self.analog_wfm_rcv_0 = analog.wfm_rcv(
quad_rate=audio_rate * audio_interp,
audio_decimation=audio_interp,
)
self.analog_fm_deemph_0 = analog.fm_deemph(fs=audio_rate, tau=50e-6)
##################################################
# Connections
##################################################
self.connect((self.analog_fm_deemph_0, 0),
(self.blocks_multiply_const_vxx_0, 0))
self.connect((self.analog_wfm_rcv_0, 0), (self.analog_fm_deemph_0, 0))
self.connect((self.blocks_float_to_complex_0, 0),
(self.low_pass_filter_0, 0))
self.connect((self.blocks_multiply_const_vxx_0, 0),
(self.blocks_wavfile_sink_0, 0))
self.connect((self.blocks_wavfile_source_0, 0),
(self.blocks_float_to_complex_0, 0))
self.connect((self.blocks_wavfile_source_0, 1),
(self.blocks_float_to_complex_0, 1))
self.connect((self.low_pass_filter_0, 0),
(self.rational_resampler_xxx_0, 0))
self.connect((self.rational_resampler_xxx_0, 0),
(self.analog_wfm_rcv_0, 0))
def __init__(self):
gr.top_block.__init__(self, "FM whole-band Channelizer to Measure Latency vs TP")
##################################################
# Variables
##################################################
self.samp_rate = samp_rate = 3.125e6
self.gain = gain = 10
self.pfb_transition_width = pfb_transition_width = 120e3
self.pfb_samp_rate = pfb_samp_rate = samp_rate
self.pfb_gain = pfb_gain = 1
self.pfb_cutoff_freq = pfb_cutoff_freq = 80e3
self.pfb_attenuation = pfb_attenuation = 60
self.audio_transition_width = audio_transition_width = 3e3/10
self.audio_samp_rate = audio_samp_rate = 44.1e3
self.audio_gain = audio_gain = gain
self.audio_cutoff_freq = audio_cutoff_freq = 18e3/10
self.audio_attenuation = audio_attenuation = 80
self.pfb_taps = pfb_taps = firdes.low_pass_2(pfb_gain, pfb_samp_rate, pfb_cutoff_freq, pfb_transition_width, pfb_attenuation)
self.audio_taps = audio_taps = firdes.low_pass_2(audio_gain, audio_samp_rate, audio_cutoff_freq, audio_transition_width, audio_attenuation)
self.pfb_ntaps = pfb_ntaps = pfb_taps.__len__()
self.channel = channel = 0
self.audio_rate = audio_rate = 44.1e3
self.audio_ntaps = audio_ntaps = audio_taps.__len__()
##################################################
# Blocks
##################################################
self.west_timestamp_tagger_ff_0 = west.timestamp_tagger_ff(gr.sizeof_gr_complex, 100)
self.west_timestamp_sink_f_0 = west.timestamp_sink_f("timestamp", "fm_latency_meas")
self.pfb_arb_resampler_xxx_0 = pfb.arb_resampler_fff(
audio_rate / 50e3,
taps=(audio_taps),
flt_size=10)
self.pfb_arb_resampler_xxx_0.declare_sample_delay(0)
self.blocks_null_sink_0 = blocks.null_sink(gr.sizeof_float*1)
self.blocks_file_source_0 = blocks.file_source(gr.sizeof_gr_complex*1, "/home/nathan/Downloads/WFM-97.9MHz-3.125Msps.dat", False)
self.analog_wfm_rcv_0 = analog.wfm_rcv(
quad_rate=200e3,
audio_decimation=int(200e3 / audio_rate),
)
self.analog_fm_deemph_0 = analog.fm_deemph(fs=audio_rate, tau=75e-6)
##################################################
# Connections
##################################################
self.connect((self.analog_wfm_rcv_0, 0), (self.pfb_arb_resampler_xxx_0, 0))
self.connect((self.pfb_arb_resampler_xxx_0, 0), (self.analog_fm_deemph_0, 0))
self.connect((self.analog_fm_deemph_0, 0), (self.west_timestamp_sink_f_0, 0))
self.connect((self.west_timestamp_sink_f_0, 0), (self.blocks_null_sink_0, 0))
self.connect((self.west_timestamp_tagger_ff_0, 0), (self.analog_wfm_rcv_0, 0))
self.connect((self.blocks_file_source_0, 0), (self.west_timestamp_tagger_ff_0, 0))
def test_002(self):
# Confirm that we can instantiate and run an FM deemphasis block
tb = self.tb
src = analog.sig_source_f(48000, analog.GR_COS_WAVE, 5000.0, 1.0)
op = analog.fm_deemph(fs=48000, tau=75e-6)
head = blocks.head(gr.sizeof_float, 100)
dst = blocks.vector_sink_f()
tb.connect(src, op)
tb.connect(op, head)
tb.connect(head, dst)
tb.run()
def __init__(self, dest, debug, input_rate, deviation, squelch, gain,
msgq_id, msg_q):
gr.hier_block2.__init__(
self,
"op25_nbfm_c",
gr.io_signature(1, 1, gr.sizeof_gr_complex), # Input signature
gr.io_signature(0, 0, 0)) # Output signature
self.debug = debug
self.msgq_id = msgq_id
# 'switch' enables the analog decoding to be turned on/off
self.switch = blocks.copy(gr.sizeof_gr_complex)
self.switch.set_enabled(False)
# power squelch
self.squelch = analog.simple_squelch_cc(squelch, gain)
# quadrature demod
fm_demod_gain = input_rate / (4 * pi * deviation)
self.fm_demod = analog.quadrature_demod_cf(fm_demod_gain)
# fm deemphasis
self.deemph = analog.fm_deemph(input_rate, 0.00075)
# decimate and filter
audio_decim = input_rate // _PCM_RATE
lpf_taps = filter.firdes.low_pass(
1.0, # gain
input_rate, # sampling rate
3000.0, # Audio high cutoff (remove aliasing)
200.0, # transition
filter.firdes.WIN_HAMMING) # filter type
hpf_taps = filter.firdes.high_pass(
1.0, # gain
_PCM_RATE, # sampling rate
200.0, # Audio low cutoff (remove sub-audio signaling)
10.0, # Sharp transition band
filter.firdes.WIN_HAMMING) # filter type
self.lp_filter = filter.fir_filter_fff(audio_decim, lpf_taps)
self.hp_filter = filter.fir_filter_fff(1, hpf_taps)
# analog_udp block converts +/-1.0 float samples to S16LE PCM and sends over UDP
self.analog_udp = op25_repeater.analog_udp(dest, debug, msgq_id, msg_q)
self.connect(self, self.switch, self.squelch, self.fm_demod,
self.deemph, self.lp_filter, self.hp_filter,
self.analog_udp)
sys.stderr.write("%s [%d] Enabling nbfm analog audio\n" %
(log_ts.get(), msgq_id))
def __init__(self):
grc_wxgui.top_block_gui.__init__(self, title="Stereo FM receiver and RDS Decoder")
##################################################
# Variables
##################################################
self.samp_rate = samp_rate = 1000000
self.bb_decim = bb_decim = 4
self.freq_offset = freq_offset = 250000
self.freq = freq = 106.1e6
self.baseband_rate = baseband_rate = samp_rate/bb_decim
self.audio_decim = audio_decim = 5
self.xlate_bandwidth = xlate_bandwidth = 100000
self.volume = volume = 0
self.gain = gain = 37.6
self.freq_tune = freq_tune = freq - freq_offset
self.audio_rate = audio_rate = 48000
self.audio_decim_rate = audio_decim_rate = baseband_rate/audio_decim
##################################################
# Blocks
##################################################
_volume_sizer = wx.BoxSizer(wx.VERTICAL)
self._volume_text_box = forms.text_box(
parent=self.GetWin(),
sizer=_volume_sizer,
value=self.volume,
callback=self.set_volume,
label="Volume",
converter=forms.float_converter(),
proportion=0,
)
self._volume_slider = forms.slider(
parent=self.GetWin(),
sizer=_volume_sizer,
value=self.volume,
callback=self.set_volume,
minimum=-20,
maximum=10,
num_steps=300,
style=wx.SL_HORIZONTAL,
cast=float,
proportion=1,
)
self.GridAdd(_volume_sizer, 0, 1, 1, 1)
self.nb = self.nb = wx.Notebook(self.GetWin(), style=wx.NB_TOP)
self.nb.AddPage(grc_wxgui.Panel(self.nb), "BB")
self.nb.AddPage(grc_wxgui.Panel(self.nb), "Demod")
self.nb.AddPage(grc_wxgui.Panel(self.nb), "L+R")
self.nb.AddPage(grc_wxgui.Panel(self.nb), "Pilot")
self.nb.AddPage(grc_wxgui.Panel(self.nb), "DSBSC")
self.nb.AddPage(grc_wxgui.Panel(self.nb), "RDS")
self.nb.AddPage(grc_wxgui.Panel(self.nb), "L-R")
self.nb.AddPage(grc_wxgui.Panel(self.nb), "RDS constellation")
self.nb.AddPage(grc_wxgui.Panel(self.nb), "Waterfall")
self.GridAdd(self.nb, 2, 0, 1, 2)
_gain_sizer = wx.BoxSizer(wx.VERTICAL)
self._gain_text_box = forms.text_box(
parent=self.GetWin(),
sizer=_gain_sizer,
value=self.gain,
callback=self.set_gain,
label="RF Gain",
converter=forms.float_converter(),
proportion=0,
)
self._gain_slider = forms.slider(
parent=self.GetWin(),
sizer=_gain_sizer,
value=self.gain,
callback=self.set_gain,
minimum=0,
maximum=49.6,
num_steps=124,
style=wx.SL_HORIZONTAL,
cast=float,
proportion=1,
)
self.GridAdd(_gain_sizer, 0, 0, 1, 1)
_freq_sizer = wx.BoxSizer(wx.VERTICAL)
self._freq_text_box = forms.text_box(
parent=self.GetWin(),
sizer=_freq_sizer,
value=self.freq,
callback=self.set_freq,
label="Freq",
converter=forms.float_converter(),
proportion=0,
)
self._freq_slider = forms.slider(
parent=self.GetWin(),
sizer=_freq_sizer,
value=self.freq,
callback=self.set_freq,
minimum=88.1e6,
maximum=107.9e6,
num_steps=99,
style=wx.SL_HORIZONTAL,
cast=float,
proportion=1,
)
self.GridAdd(_freq_sizer, 1, 0, 1, 2)
self.wxgui_waterfallsink2_0 = waterfallsink2.waterfall_sink_f(
self.nb.GetPage(8).GetWin(),
baseband_freq=0,
dynamic_range=100,
ref_level=0,
ref_scale=2.0,
sample_rate=baseband_rate,
fft_size=512,
fft_rate=15,
average=False,
avg_alpha=None,
title="Waterfall Plot",
)
self.nb.GetPage(8).Add(self.wxgui_waterfallsink2_0.win)
self.wxgui_scopesink2_1 = scopesink2.scope_sink_c(
self.nb.GetPage(7).GetWin(),
title="Scope Plot",
sample_rate=2375,
v_scale=0.4,
v_offset=0,
t_scale=0,
ac_couple=False,
xy_mode=True,
num_inputs=1,
trig_mode=wxgui.TRIG_MODE_AUTO,
y_axis_label="Counts",
)
self.nb.GetPage(7).Add(self.wxgui_scopesink2_1.win)
self.wxgui_scopesink2_0 = scopesink2.scope_sink_f(
self.nb.GetPage(3).GetWin(),
title="Pilot",
sample_rate=baseband_rate,
v_scale=0,
v_offset=0,
t_scale=0,
ac_couple=False,
xy_mode=False,
num_inputs=1,
trig_mode=wxgui.TRIG_MODE_AUTO,
y_axis_label="Counts",
)
self.nb.GetPage(3).Add(self.wxgui_scopesink2_0.win)
self.wxgui_fftsink2_0_0_0_1_0_1 = fftsink2.fft_sink_c(
self.nb.GetPage(5).GetWin(),
baseband_freq=0,
y_per_div=10,
y_divs=10,
ref_level=0,
ref_scale=2.0,
sample_rate=audio_rate,
fft_size=1024,
fft_rate=15,
average=False,
avg_alpha=None,
title="RDS",
peak_hold=False,
)
self.nb.GetPage(5).Add(self.wxgui_fftsink2_0_0_0_1_0_1.win)
self.wxgui_fftsink2_0_0_0_1_0_0 = fftsink2.fft_sink_f(
self.nb.GetPage(6).GetWin(),
baseband_freq=0,
y_per_div=10,
y_divs=10,
ref_level=-50,
ref_scale=2.0,
sample_rate=baseband_rate,
fft_size=1024,
fft_rate=15,
average=False,
avg_alpha=None,
title="L-R",
peak_hold=False,
)
self.nb.GetPage(6).Add(self.wxgui_fftsink2_0_0_0_1_0_0.win)
self.wxgui_fftsink2_0_0_0_1 = fftsink2.fft_sink_f(
self.nb.GetPage(4).GetWin(),
baseband_freq=0,
y_per_div=10,
y_divs=10,
ref_level=0,
ref_scale=2.0,
sample_rate=baseband_rate,
fft_size=1024,
fft_rate=15,
average=False,
avg_alpha=None,
title="DSBSC Sub-carrier",
peak_hold=False,
)
self.nb.GetPage(4).Add(self.wxgui_fftsink2_0_0_0_1.win)
self.wxgui_fftsink2_0_0_0 = fftsink2.fft_sink_f(
self.nb.GetPage(2).GetWin(),
baseband_freq=0,
y_per_div=10,
y_divs=10,
ref_level=0,
ref_scale=2.0,
sample_rate=audio_decim_rate,
fft_size=1024,
fft_rate=15,
average=False,
avg_alpha=None,
title="L+R",
peak_hold=False,
)
self.nb.GetPage(2).Add(self.wxgui_fftsink2_0_0_0.win)
self.wxgui_fftsink2_0_0 = fftsink2.fft_sink_f(
self.nb.GetPage(1).GetWin(),
baseband_freq=0,
y_per_div=10,
y_divs=10,
ref_level=0,
ref_scale=2.0,
sample_rate=baseband_rate,
fft_size=1024,
fft_rate=15,
average=True,
avg_alpha=0.8,
title="FM Demod",
peak_hold=False,
)
self.nb.GetPage(1).Add(self.wxgui_fftsink2_0_0.win)
self.wxgui_fftsink2_0 = fftsink2.fft_sink_c(
self.nb.GetPage(0).GetWin(),
baseband_freq=0,
y_per_div=10,
y_divs=10,
ref_level=-30,
ref_scale=2.0,
sample_rate=samp_rate,
fft_size=1024,
fft_rate=15,
average=True,
avg_alpha=0.8,
title="Baseband",
peak_hold=False,
)
self.nb.GetPage(0).Add(self.wxgui_fftsink2_0.win)
self.rtlsdr_source_0 = osmosdr.source( args="numchan=" + str(1) + " " + "" )
self.rtlsdr_source_0.set_sample_rate(samp_rate)
self.rtlsdr_source_0.set_center_freq(freq_tune, 0)
self.rtlsdr_source_0.set_freq_corr(0, 0)
self.rtlsdr_source_0.set_dc_offset_mode(0, 0)
self.rtlsdr_source_0.set_iq_balance_mode(0, 0)
self.rtlsdr_source_0.set_gain_mode(False, 0)
self.rtlsdr_source_0.set_gain(gain, 0)
self.rtlsdr_source_0.set_if_gain(20, 0)
self.rtlsdr_source_0.set_bb_gain(20, 0)
self.rtlsdr_source_0.set_antenna("", 0)
self.rtlsdr_source_0.set_bandwidth(0, 0)
self.root_raised_cosine_filter_0 = filter.fir_filter_ccf(1, firdes.root_raised_cosine(
1, samp_rate/bb_decim/audio_decim, 2375, 1, 100))
self.rational_resampler_xxx_0_0 = filter.rational_resampler_fff(
interpolation=audio_rate,
decimation=audio_decim_rate,
taps=None,
fractional_bw=None,
)
self.rational_resampler_xxx_0 = filter.rational_resampler_fff(
interpolation=audio_rate,
decimation=audio_decim_rate,
taps=None,
fractional_bw=None,
)
self.gr_rds_parser_0 = rds.parser(False, True)
self.gr_rds_panel_0 = rds.rdsPanel(freq, self.GetWin())
self.Add(self.gr_rds_panel_0.panel)
self.gr_rds_decoder_0 = rds.decoder(False, False)
self.freq_xlating_fir_filter_xxx_1 = filter.freq_xlating_fir_filter_fcc(audio_decim, (firdes.low_pass(2500.0,baseband_rate,2.4e3,2e3,firdes.WIN_HAMMING)), 57e3, baseband_rate)
self.freq_xlating_fir_filter_xxx_0 = filter.freq_xlating_fir_filter_ccc(1, (firdes.low_pass(1, samp_rate, xlate_bandwidth, 100000)), freq_offset, samp_rate)
self.fir_filter_xxx_5 = filter.fir_filter_fff(audio_decim, (firdes.low_pass(1.0,baseband_rate,20e3,40e3,firdes.WIN_HAMMING)))
self.fir_filter_xxx_5.declare_sample_delay(0)
self.fir_filter_xxx_3 = filter.fir_filter_fff(1, (firdes.band_pass(1.0,baseband_rate,38e3-13e3,38e3+13e3,3e3,firdes.WIN_HAMMING)))
self.fir_filter_xxx_3.declare_sample_delay(0)
self.fir_filter_xxx_2 = filter.fir_filter_fcc(1, (firdes.complex_band_pass(1.0,baseband_rate,19e3-500,19e3+500,1e3,firdes.WIN_HAMMING)))
self.fir_filter_xxx_2.declare_sample_delay(0)
self.fir_filter_xxx_1 = filter.fir_filter_fff(audio_decim, (firdes.low_pass(1.0,baseband_rate,13e3,3e3,firdes.WIN_HAMMING)))
self.fir_filter_xxx_1.declare_sample_delay(0)
self.digital_mpsk_receiver_cc_0 = digital.mpsk_receiver_cc(2, 0, 1*cmath.pi/100.0, -0.06, 0.06, 0.5, 0.05, samp_rate/bb_decim/audio_decim/ 2375.0, 0.001, 0.005)
self.digital_diff_decoder_bb_0 = digital.diff_decoder_bb(2)
self.digital_binary_slicer_fb_0 = digital.binary_slicer_fb()
self.blocks_sub_xx_0 = blocks.sub_ff(1)
self.blocks_null_sink_0 = blocks.null_sink(gr.sizeof_float*1)
self.blocks_multiply_xx_1 = blocks.multiply_vcc(1)
self.blocks_multiply_xx_0 = blocks.multiply_vff(1)
self.blocks_multiply_const_vxx_0_0 = blocks.multiply_const_vff((10**(1.*(volume+15)/10), ))
self.blocks_multiply_const_vxx_0 = blocks.multiply_const_vff((10**(1.*(volume+15)/10), ))
self.blocks_keep_one_in_n_0 = blocks.keep_one_in_n(gr.sizeof_char*1, 2)
self.blocks_complex_to_real_0 = blocks.complex_to_real(1)
self.blocks_complex_to_imag_0 = blocks.complex_to_imag(1)
self.blocks_add_xx_0 = blocks.add_vff(1)
self.analog_wfm_rcv_0 = analog.wfm_rcv(
quad_rate=samp_rate,
audio_decimation=bb_decim,
)
self.analog_pll_refout_cc_0 = analog.pll_refout_cc(0.001, 2 * math.pi * (19000+200) / baseband_rate, 2 * math.pi * (19000-200) / baseband_rate)
self.analog_fm_deemph_0_0_0 = analog.fm_deemph(fs=audio_decim_rate, tau=75e-6)
self.analog_fm_deemph_0_0 = analog.fm_deemph(fs=audio_decim_rate, tau=75e-6)
##################################################
# Connections
##################################################
self.connect((self.fir_filter_xxx_1, 0), (self.wxgui_fftsink2_0_0_0, 0))
self.connect((self.fir_filter_xxx_1, 0), (self.blocks_add_xx_0, 0))
self.connect((self.fir_filter_xxx_3, 0), (self.wxgui_fftsink2_0_0_0_1, 0))
self.connect((self.fir_filter_xxx_1, 0), (self.blocks_sub_xx_0, 0))
self.connect((self.blocks_multiply_xx_0, 0), (self.fir_filter_xxx_5, 0))
self.connect((self.analog_fm_deemph_0_0_0, 0), (self.blocks_multiply_const_vxx_0, 0))
self.connect((self.blocks_add_xx_0, 0), (self.analog_fm_deemph_0_0_0, 0))
self.connect((self.blocks_sub_xx_0, 0), (self.analog_fm_deemph_0_0, 0))
self.connect((self.blocks_multiply_xx_0, 0), (self.wxgui_fftsink2_0_0_0_1_0_0, 0))
self.connect((self.fir_filter_xxx_5, 0), (self.blocks_add_xx_0, 1))
self.connect((self.fir_filter_xxx_5, 0), (self.blocks_sub_xx_0, 1))
self.connect((self.fir_filter_xxx_3, 0), (self.blocks_multiply_xx_0, 0))
self.connect((self.blocks_multiply_const_vxx_0, 0), (self.rational_resampler_xxx_0, 0))
self.connect((self.analog_fm_deemph_0_0, 0), (self.blocks_multiply_const_vxx_0_0, 0))
self.connect((self.blocks_multiply_const_vxx_0_0, 0), (self.rational_resampler_xxx_0_0, 0))
self.connect((self.freq_xlating_fir_filter_xxx_0, 0), (self.wxgui_fftsink2_0, 0))
self.connect((self.freq_xlating_fir_filter_xxx_0, 0), (self.analog_wfm_rcv_0, 0))
self.connect((self.analog_wfm_rcv_0, 0), (self.fir_filter_xxx_1, 0))
self.connect((self.analog_wfm_rcv_0, 0), (self.wxgui_waterfallsink2_0, 0))
self.connect((self.analog_wfm_rcv_0, 0), (self.wxgui_fftsink2_0_0, 0))
self.connect((self.analog_wfm_rcv_0, 0), (self.fir_filter_xxx_3, 0))
self.connect((self.analog_wfm_rcv_0, 0), (self.fir_filter_xxx_2, 0))
self.connect((self.fir_filter_xxx_2, 0), (self.analog_pll_refout_cc_0, 0))
self.connect((self.analog_pll_refout_cc_0, 0), (self.blocks_multiply_xx_1, 1))
self.connect((self.analog_pll_refout_cc_0, 0), (self.blocks_multiply_xx_1, 0))
self.connect((self.blocks_multiply_xx_1, 0), (self.blocks_complex_to_imag_0, 0))
self.connect((self.blocks_complex_to_imag_0, 0), (self.wxgui_scopesink2_0, 0))
self.connect((self.blocks_complex_to_imag_0, 0), (self.blocks_multiply_xx_0, 1))
self.connect((self.analog_wfm_rcv_0, 0), (self.freq_xlating_fir_filter_xxx_1, 0))
self.connect((self.freq_xlating_fir_filter_xxx_1, 0), (self.wxgui_fftsink2_0_0_0_1_0_1, 0))
self.connect((self.digital_mpsk_receiver_cc_0, 0), (self.wxgui_scopesink2_1, 0))
self.connect((self.freq_xlating_fir_filter_xxx_1, 0), (self.root_raised_cosine_filter_0, 0))
self.connect((self.root_raised_cosine_filter_0, 0), (self.digital_mpsk_receiver_cc_0, 0))
self.connect((self.digital_mpsk_receiver_cc_0, 0), (self.blocks_complex_to_real_0, 0))
self.connect((self.digital_binary_slicer_fb_0, 0), (self.blocks_keep_one_in_n_0, 0))
self.connect((self.blocks_complex_to_real_0, 0), (self.digital_binary_slicer_fb_0, 0))
self.connect((self.blocks_keep_one_in_n_0, 0), (self.digital_diff_decoder_bb_0, 0))
self.connect((self.rtlsdr_source_0, 0), (self.freq_xlating_fir_filter_xxx_0, 0))
self.connect((self.digital_diff_decoder_bb_0, 0), (self.gr_rds_decoder_0, 0))
self.connect((self.rational_resampler_xxx_0, 0), (self.blocks_null_sink_0, 0))
self.connect((self.rational_resampler_xxx_0_0, 0), (self.blocks_null_sink_0, 1))
##################################################
# Asynch Message Connections
##################################################
self.msg_connect(self.gr_rds_decoder_0, "out", self.gr_rds_parser_0, "in")
self.msg_connect(self.gr_rds_parser_0, "out", self.gr_rds_panel_0, "in")
def __init__(self):
gr.top_block.__init__(self, "Top Block")
Qt.QWidget.__init__(self)
self.setWindowTitle("Top Block")
try:
self.setWindowIcon(Qt.QIcon.fromTheme('gnuradio-grc'))
except:
pass
self.top_scroll_layout = Qt.QVBoxLayout()
self.setLayout(self.top_scroll_layout)
self.top_scroll = Qt.QScrollArea()
self.top_scroll.setFrameStyle(Qt.QFrame.NoFrame)
self.top_scroll_layout.addWidget(self.top_scroll)
self.top_scroll.setWidgetResizable(True)
self.top_widget = Qt.QWidget()
self.top_scroll.setWidget(self.top_widget)
self.top_layout = Qt.QVBoxLayout(self.top_widget)
self.top_grid_layout = Qt.QGridLayout()
self.top_layout.addLayout(self.top_grid_layout)
self.settings = Qt.QSettings("GNU Radio", "top_block")
self.restoreGeometry(self.settings.value("geometry").toByteArray())
##################################################
# Variables
##################################################
self.volume = volume = 2
self.samp_rate = samp_rate = 2.88e6
self.freq = freq = 93.7e6
##################################################
# Blocks
##################################################
self._volume_layout = Qt.QVBoxLayout()
self._volume_tool_bar = Qt.QToolBar(self)
self._volume_layout.addWidget(self._volume_tool_bar)
self._volume_tool_bar.addWidget(Qt.QLabel("volume" + ": "))
self._volume_counter = Qwt.QwtCounter()
self._volume_counter.setRange(0, 20, 1)
self._volume_counter.setNumButtons(2)
self._volume_counter.setValue(self.volume)
self._volume_tool_bar.addWidget(self._volume_counter)
self._volume_counter.valueChanged.connect(self.set_volume)
self._volume_slider = Qwt.QwtSlider(None, Qt.Qt.Horizontal,
Qwt.QwtSlider.BottomScale,
Qwt.QwtSlider.BgSlot)
self._volume_slider.setRange(0, 20, 1)
self._volume_slider.setValue(self.volume)
self._volume_slider.setMinimumWidth(200)
self._volume_slider.valueChanged.connect(self.set_volume)
self._volume_layout.addWidget(self._volume_slider)
self.top_layout.addLayout(self._volume_layout)
self._freq_layout = Qt.QVBoxLayout()
self._freq_tool_bar = Qt.QToolBar(self)
self._freq_layout.addWidget(self._freq_tool_bar)
self._freq_tool_bar.addWidget(Qt.QLabel("freq" + ": "))
self._freq_counter = Qwt.QwtCounter()
self._freq_counter.setRange(76e6, 108e6, 200e3)
self._freq_counter.setNumButtons(2)
self._freq_counter.setValue(self.freq)
self._freq_tool_bar.addWidget(self._freq_counter)
self._freq_counter.valueChanged.connect(self.set_freq)
self._freq_slider = Qwt.QwtSlider(None, Qt.Qt.Horizontal,
Qwt.QwtSlider.BottomScale,
Qwt.QwtSlider.BgSlot)
self._freq_slider.setRange(76e6, 108e6, 200e3)
self._freq_slider.setValue(self.freq)
self._freq_slider.setMinimumWidth(200)
self._freq_slider.valueChanged.connect(self.set_freq)
self._freq_layout.addWidget(self._freq_slider)
self.top_layout.addLayout(self._freq_layout)
self.rtlsdr_source_0 = osmosdr.source(args="numchan=" + str(1) + " " +
"")
self.rtlsdr_source_0.set_sample_rate(samp_rate)
self.rtlsdr_source_0.set_center_freq(freq, 0)
self.rtlsdr_source_0.set_freq_corr(0, 0)
self.rtlsdr_source_0.set_dc_offset_mode(0, 0)
self.rtlsdr_source_0.set_iq_balance_mode(0, 0)
self.rtlsdr_source_0.set_gain_mode(0, 0)
self.rtlsdr_source_0.set_gain(10, 0)
self.rtlsdr_source_0.set_if_gain(30, 0)
self.rtlsdr_source_0.set_bb_gain(30, 0)
self.rtlsdr_source_0.set_antenna("", 0)
self.rtlsdr_source_0.set_bandwidth(0, 0)
self.qtgui_sink_x_0 = qtgui.sink_c(
1024, #fftsize
firdes.WIN_BLACKMAN_hARRIS, #wintype
0, #fc
samp_rate, #bw
"QT GUI Plot", #name
True, #plotfreq
True, #plotwaterfall
True, #plottime
True, #plotconst
)
self.qtgui_sink_x_0.set_update_time(1.0 / 10)
self._qtgui_sink_x_0_win = sip.wrapinstance(
self.qtgui_sink_x_0.pyqwidget(), Qt.QWidget)
self.top_layout.addWidget(self._qtgui_sink_x_0_win)
self.low_pass_filter_1 = filter.interp_fir_filter_fff(
1, firdes.low_pass(1, 48e3, 15e3, 1e3, firdes.WIN_HAMMING, 6.76))
self.low_pass_filter_0 = filter.fir_filter_ccf(
10,
firdes.low_pass(1, samp_rate, 100e3, 10e3, firdes.WIN_HAMMING,
6.76))
self.blocks_multiply_const_vxx_0 = blocks.multiply_const_vff(
(volume, ))
self.audio_sink_0 = audio.sink(48000, "", True)
self.analog_wfm_rcv_0 = analog.wfm_rcv(
quad_rate=samp_rate / 10,
audio_decimation=6,
)
self.analog_fm_deemph_0 = analog.fm_deemph(fs=samp_rate / 10,
tau=75e-6)
##################################################
# Connections
##################################################
self.connect((self.rtlsdr_source_0, 0), (self.low_pass_filter_0, 0))
self.connect((self.low_pass_filter_0, 0), (self.analog_wfm_rcv_0, 0))
self.connect((self.analog_wfm_rcv_0, 0), (self.analog_fm_deemph_0, 0))
self.connect((self.analog_fm_deemph_0, 0), (self.low_pass_filter_1, 0))
self.connect((self.low_pass_filter_1, 0),
(self.blocks_multiply_const_vxx_0, 0))
self.connect((self.blocks_multiply_const_vxx_0, 0),
(self.audio_sink_0, 0))
self.connect((self.rtlsdr_source_0, 0), (self.qtgui_sink_x_0, 0))
def __init__(self):
gr.top_block.__init__(self, "FM whole-band Channelizer")
Qt.QWidget.__init__(self)
self.setWindowTitle("FM whole-band Channelizer")
try:
self.setWindowIcon(Qt.QIcon.fromTheme('gnuradio-grc'))
except:
pass
self.top_scroll_layout = Qt.QVBoxLayout()
self.setLayout(self.top_scroll_layout)
self.top_scroll = Qt.QScrollArea()
self.top_scroll.setFrameStyle(Qt.QFrame.NoFrame)
self.top_scroll_layout.addWidget(self.top_scroll)
self.top_scroll.setWidgetResizable(True)
self.top_widget = Qt.QWidget()
self.top_scroll.setWidget(self.top_widget)
self.top_layout = Qt.QVBoxLayout(self.top_widget)
self.top_grid_layout = Qt.QGridLayout()
self.top_layout.addLayout(self.top_grid_layout)
self.settings = Qt.QSettings("GNU Radio", "fm_channelize")
self.restoreGeometry(self.settings.value("geometry").toByteArray())
##################################################
# Variables
##################################################
self.samp_rate = samp_rate = 3.125e6
self.gain = gain = 25
self.pfb_transition_width = pfb_transition_width = 120e3
self.pfb_samp_rate = pfb_samp_rate = samp_rate
self.pfb_gain = pfb_gain = 1
self.pfb_cutoff_freq = pfb_cutoff_freq = 80e3
self.pfb_attenuation = pfb_attenuation = 60
self.audio_transition_width = audio_transition_width = 3e3/10
self.audio_samp_rate = audio_samp_rate = 44.1e3
self.audio_gain = audio_gain = gain
self.audio_cutoff_freq = audio_cutoff_freq = 18e3/10
self.audio_attenuation = audio_attenuation = 80
self.pfb_taps = pfb_taps = firdes.low_pass_2(pfb_gain, pfb_samp_rate, pfb_cutoff_freq, pfb_transition_width, pfb_attenuation)
self.audio_taps = audio_taps = firdes.low_pass_2(audio_gain, audio_samp_rate, audio_cutoff_freq, audio_transition_width, audio_attenuation)
self.pfb_ntaps = pfb_ntaps = pfb_taps.__len__()
self.channel = channel = 0
self.audio_rate = audio_rate = 44.1e3
self.audio_ntaps = audio_ntaps = audio_taps.__len__()
##################################################
# Blocks
##################################################
self._channel_layout = Qt.QVBoxLayout()
self._channel_tool_bar = Qt.QToolBar(self)
self._channel_layout.addWidget(self._channel_tool_bar)
self._channel_tool_bar.addWidget(Qt.QLabel("fm channel"+": "))
class qwt_counter_pyslot(Qwt.QwtCounter):
def __init__(self, parent=None):
Qwt.QwtCounter.__init__(self, parent)
@pyqtSlot('double')
def setValue(self, value):
super(Qwt.QwtCounter, self).setValue(value)
self._channel_counter = qwt_counter_pyslot()
self._channel_counter.setRange(0, 125, 1)
self._channel_counter.setNumButtons(2)
self._channel_counter.setValue(self.channel)
self._channel_tool_bar.addWidget(self._channel_counter)
self._channel_counter.valueChanged.connect(self.set_channel)
self._channel_slider = Qwt.QwtSlider(None, Qt.Qt.Horizontal, Qwt.QwtSlider.BottomScale, Qwt.QwtSlider.BgSlot)
self._channel_slider.setRange(0, 125, 1)
self._channel_slider.setValue(self.channel)
self._channel_slider.setMinimumWidth(125)
self._channel_slider.valueChanged.connect(self.set_channel)
self._channel_layout.addWidget(self._channel_slider)
self.top_layout.addLayout(self._channel_layout)
self.pfb_decimator_ccf_0 = pfb.decimator_ccf(
15,
(pfb_taps),
channel,
100,
True,
True)
self.pfb_decimator_ccf_0.declare_sample_delay(0)
self.pfb_arb_resampler_xxx_0 = pfb.arb_resampler_fff(
audio_rate / 50e3,
taps=(audio_taps),
flt_size=10)
self.pfb_arb_resampler_xxx_0.declare_sample_delay(0)
self._gain_layout = Qt.QVBoxLayout()
self._gain_tool_bar = Qt.QToolBar(self)
self._gain_layout.addWidget(self._gain_tool_bar)
self._gain_tool_bar.addWidget(Qt.QLabel("Gain"+": "))
class qwt_counter_pyslot(Qwt.QwtCounter):
def __init__(self, parent=None):
Qwt.QwtCounter.__init__(self, parent)
@pyqtSlot('double')
def setValue(self, value):
super(Qwt.QwtCounter, self).setValue(value)
self._gain_counter = qwt_counter_pyslot()
self._gain_counter.setRange(0, 100, 1)
self._gain_counter.setNumButtons(2)
self._gain_counter.setValue(self.gain)
self._gain_tool_bar.addWidget(self._gain_counter)
self._gain_counter.valueChanged.connect(self.set_gain)
self._gain_slider = Qwt.QwtSlider(None, Qt.Qt.Horizontal, Qwt.QwtSlider.BottomScale, Qwt.QwtSlider.BgSlot)
self._gain_slider.setRange(0, 100, 1)
self._gain_slider.setValue(self.gain)
self._gain_slider.setMinimumWidth(200)
self._gain_slider.valueChanged.connect(self.set_gain)
self._gain_layout.addWidget(self._gain_slider)
self.top_layout.addLayout(self._gain_layout)
self.blocks_null_sink_0 = blocks.null_sink(gr.sizeof_float*1)
self.blocks_file_source_0 = blocks.file_source(gr.sizeof_gr_complex*1, "/home/nathan/Downloads/WFM-97.9MHz-3.125Msps.dat", True)
self.audio_sink_0 = audio.sink(int(audio_rate), "", True)
self.analog_wfm_rcv_0 = analog.wfm_rcv(
quad_rate=200e3,
audio_decimation=int(200e3 / audio_rate),
)
self.analog_fm_deemph_0 = analog.fm_deemph(fs=audio_rate, tau=75e-6)
##################################################
# Connections
##################################################
self.connect((self.pfb_decimator_ccf_0, 0), (self.analog_wfm_rcv_0, 0))
self.connect((self.analog_wfm_rcv_0, 0), (self.pfb_arb_resampler_xxx_0, 0))
self.connect((self.blocks_file_source_0, 0), (self.pfb_decimator_ccf_0, 0))
self.connect((self.pfb_arb_resampler_xxx_0, 0), (self.analog_fm_deemph_0, 0))
self.connect((self.analog_fm_deemph_0, 0), (self.audio_sink_0, 0))
self.connect((self.analog_fm_deemph_0, 0), (self.blocks_null_sink_0, 0))
def __init__(self):
grc_wxgui.top_block_gui.__init__(self, title="Stereo FM receiver and RDS Decoder")
_icon_path = "/usr/share/icons/hicolor/32x32/apps/gnuradio-grc.png"
self.SetIcon(wx.Icon(_icon_path, wx.BITMAP_TYPE_ANY))
##################################################
# Variables
##################################################
self.xlate_decim = xlate_decim = 4
self.samp_rate = samp_rate = 1000000
self.freq_offset = freq_offset = 250e3
self.freq = freq = 88.5e6
self.baseband_rate = baseband_rate = samp_rate/xlate_decim
self.audio_decim = audio_decim = 4
self.xlate_bandwidth = xlate_bandwidth = 250e3
self.volume = volume = 0
self.loop_bw = loop_bw = 16e3*0 + 18e3*1
self.gain = gain = 10
self.freq_tune = freq_tune = freq - freq_offset
self.audio_rate = audio_rate = 48000
self.audio_decim_rate = audio_decim_rate = baseband_rate/audio_decim
self.antenna = antenna = 'TX/RX'
##################################################
# Message Queues
##################################################
gr_rds_data_decoder_0_msgq_out = gr_rds_panel_0_msgq_in = gr.msg_queue(2)
##################################################
# Blocks
##################################################
_volume_sizer = wx.BoxSizer(wx.VERTICAL)
self._volume_text_box = forms.text_box(
parent=self.GetWin(),
sizer=_volume_sizer,
value=self.volume,
callback=self.set_volume,
label="Volume",
converter=forms.float_converter(),
proportion=0,
)
self._volume_slider = forms.slider(
parent=self.GetWin(),
sizer=_volume_sizer,
value=self.volume,
callback=self.set_volume,
minimum=-20,
maximum=10,
num_steps=300,
style=wx.SL_HORIZONTAL,
cast=float,
proportion=1,
)
self.Add(_volume_sizer)
self.nb = self.nb = wx.Notebook(self.GetWin(), style=wx.NB_TOP)
self.nb.AddPage(grc_wxgui.Panel(self.nb), "BB")
self.nb.AddPage(grc_wxgui.Panel(self.nb), "Demod")
self.nb.AddPage(grc_wxgui.Panel(self.nb), "L+R")
self.nb.AddPage(grc_wxgui.Panel(self.nb), "Pilot")
self.nb.AddPage(grc_wxgui.Panel(self.nb), "DSBSC")
self.nb.AddPage(grc_wxgui.Panel(self.nb), "RDS Raw")
self.nb.AddPage(grc_wxgui.Panel(self.nb), "L-R")
self.nb.AddPage(grc_wxgui.Panel(self.nb), "RDS")
self.Add(self.nb)
_loop_bw_sizer = wx.BoxSizer(wx.VERTICAL)
self._loop_bw_text_box = forms.text_box(
parent=self.GetWin(),
sizer=_loop_bw_sizer,
value=self.loop_bw,
callback=self.set_loop_bw,
label="Loop BW",
converter=forms.float_converter(),
proportion=0,
)
self._loop_bw_slider = forms.slider(
parent=self.GetWin(),
sizer=_loop_bw_sizer,
value=self.loop_bw,
callback=self.set_loop_bw,
minimum=0,
maximum=baseband_rate,
num_steps=1000,
style=wx.SL_HORIZONTAL,
cast=float,
proportion=1,
)
self.Add(_loop_bw_sizer)
_gain_sizer = wx.BoxSizer(wx.VERTICAL)
self._gain_text_box = forms.text_box(
parent=self.GetWin(),
sizer=_gain_sizer,
value=self.gain,
callback=self.set_gain,
label="Gain",
converter=forms.float_converter(),
proportion=0,
)
self._gain_slider = forms.slider(
parent=self.GetWin(),
sizer=_gain_sizer,
value=self.gain,
callback=self.set_gain,
minimum=0,
maximum=50,
num_steps=50,
style=wx.SL_HORIZONTAL,
cast=float,
proportion=1,
)
self.Add(_gain_sizer)
self._freq_offset_text_box = forms.text_box(
parent=self.GetWin(),
value=self.freq_offset,
callback=self.set_freq_offset,
label="Freq Offset",
converter=forms.float_converter(),
)
self.Add(self._freq_offset_text_box)
_freq_sizer = wx.BoxSizer(wx.VERTICAL)
self._freq_text_box = forms.text_box(
parent=self.GetWin(),
sizer=_freq_sizer,
value=self.freq,
callback=self.set_freq,
label="Freq",
converter=forms.float_converter(),
proportion=0,
)
self._freq_slider = forms.slider(
parent=self.GetWin(),
sizer=_freq_sizer,
value=self.freq,
callback=self.set_freq,
minimum=87.5e6,
maximum=108e6,
num_steps=205,
style=wx.SL_HORIZONTAL,
cast=float,
proportion=1,
)
self.Add(_freq_sizer)
self._antenna_chooser = forms.drop_down(
parent=self.GetWin(),
value=self.antenna,
callback=self.set_antenna,
label="Antenna",
choices=['TX/RX', 'RX2'],
labels=[],
)
self.Add(self._antenna_chooser)
self.wxgui_scopesink2_0 = scopesink2.scope_sink_f(
self.nb.GetPage(3).GetWin(),
title="Pilot",
sample_rate=baseband_rate,
v_scale=0,
v_offset=0,
t_scale=0,
ac_couple=False,
xy_mode=False,
num_inputs=1,
trig_mode=wxgui.TRIG_MODE_AUTO,
y_axis_label="Counts",
)
self.nb.GetPage(3).Add(self.wxgui_scopesink2_0.win)
self.wxgui_fftsink2_0_0_0_1_0_1 = fftsink2.fft_sink_f(
self.nb.GetPage(7).GetWin(),
baseband_freq=0,
y_per_div=10,
y_divs=10,
ref_level=-50,
ref_scale=2.0,
sample_rate=baseband_rate,
fft_size=1024,
fft_rate=15,
average=False,
avg_alpha=None,
title="RDS",
peak_hold=False,
)
self.nb.GetPage(7).Add(self.wxgui_fftsink2_0_0_0_1_0_1.win)
self.wxgui_fftsink2_0_0_0_1_0_0 = fftsink2.fft_sink_f(
self.nb.GetPage(6).GetWin(),
baseband_freq=0,
y_per_div=10,
y_divs=10,
ref_level=-50,
ref_scale=2.0,
sample_rate=baseband_rate,
fft_size=1024,
fft_rate=15,
average=False,
avg_alpha=None,
title="L-R",
peak_hold=False,
)
self.nb.GetPage(6).Add(self.wxgui_fftsink2_0_0_0_1_0_0.win)
self.wxgui_fftsink2_0_0_0_1_0 = fftsink2.fft_sink_f(
self.nb.GetPage(5).GetWin(),
baseband_freq=0,
y_per_div=10,
y_divs=10,
ref_level=0,
ref_scale=2.0,
sample_rate=baseband_rate,
fft_size=1024,
fft_rate=15,
average=False,
avg_alpha=None,
title="RDS",
peak_hold=False,
)
self.nb.GetPage(5).Add(self.wxgui_fftsink2_0_0_0_1_0.win)
self.wxgui_fftsink2_0_0_0_1 = fftsink2.fft_sink_f(
self.nb.GetPage(4).GetWin(),
baseband_freq=0,
y_per_div=10,
y_divs=10,
ref_level=0,
ref_scale=2.0,
sample_rate=baseband_rate,
fft_size=1024,
fft_rate=15,
average=False,
avg_alpha=None,
title="DSBSC Sub-carrier",
peak_hold=False,
)
self.nb.GetPage(4).Add(self.wxgui_fftsink2_0_0_0_1.win)
self.wxgui_fftsink2_0_0_0 = fftsink2.fft_sink_f(
self.nb.GetPage(2).GetWin(),
baseband_freq=0,
y_per_div=10,
y_divs=10,
ref_level=0,
ref_scale=2.0,
sample_rate=audio_decim_rate,
fft_size=1024,
fft_rate=15,
average=False,
avg_alpha=None,
title="L+R",
peak_hold=False,
)
self.nb.GetPage(2).Add(self.wxgui_fftsink2_0_0_0.win)
self.wxgui_fftsink2_0_0 = fftsink2.fft_sink_f(
self.nb.GetPage(1).GetWin(),
baseband_freq=0,
y_per_div=10,
y_divs=10,
ref_level=0,
ref_scale=2.0,
sample_rate=baseband_rate,
fft_size=1024,
fft_rate=15,
average=True,
avg_alpha=0.8,
title="FM Demod",
peak_hold=False,
)
self.nb.GetPage(1).Add(self.wxgui_fftsink2_0_0.win)
self.wxgui_fftsink2_0 = fftsink2.fft_sink_c(
self.nb.GetPage(0).GetWin(),
baseband_freq=0,
y_per_div=10,
y_divs=10,
ref_level=-30,
ref_scale=2.0,
sample_rate=baseband_rate,
fft_size=1024,
fft_rate=15,
average=True,
avg_alpha=0.8,
title="Baseband",
peak_hold=False,
)
self.nb.GetPage(0).Add(self.wxgui_fftsink2_0.win)
self.uhd_usrp_source_0 = uhd.usrp_source(
",".join(("", "")),
uhd.stream_args(
cpu_format="fc32",
channels=range(1),
),
)
self.uhd_usrp_source_0.set_samp_rate(samp_rate)
self.uhd_usrp_source_0.set_center_freq(freq_tune, 0)
self.uhd_usrp_source_0.set_gain(gain, 0)
self.uhd_usrp_source_0.set_antenna(antenna, 0)
self.rational_resampler_xxx_1 = filter.rational_resampler_fff(
interpolation=audio_rate,
decimation=audio_decim_rate,
taps=None,
fractional_bw=None,
)
self.rational_resampler_xxx_0 = filter.rational_resampler_fff(
interpolation=audio_rate,
decimation=audio_decim_rate,
taps=None,
fractional_bw=None,
)
self.gr_rds_panel_0 = rds.rdsPanel(gr_rds_panel_0_msgq_in, freq, self.GetWin())
self.Add(self.gr_rds_panel_0)
self.gr_rds_freq_divider_0 = rds.freq_divider(16)
self.gr_rds_data_decoder_0 = rds.data_decoder(gr_rds_data_decoder_0_msgq_out)
self.gr_rds_bpsk_demod_0 = rds.bpsk_demod(audio_decim_rate)
self.freq_xlating_fir_filter_xxx_0 = filter.freq_xlating_fir_filter_ccc(xlate_decim, (firdes.low_pass(1, samp_rate, xlate_bandwidth/2, 1000)), freq_offset, samp_rate)
self.fir_filter_xxx_7 = filter.fir_filter_fff(audio_decim, (firdes.low_pass(1,baseband_rate,1.2e3,1.5e3,firdes.WIN_HAMMING)))
self.fir_filter_xxx_7.declare_sample_delay(0)
self.fir_filter_xxx_6 = filter.fir_filter_fff(audio_decim, (firdes.low_pass(1,baseband_rate,1.5e3,2e3,firdes.WIN_HAMMING)))
self.fir_filter_xxx_6.declare_sample_delay(0)
self.fir_filter_xxx_5 = filter.fir_filter_fff(audio_decim, (firdes.low_pass(1.0,baseband_rate,15e3,1e3,firdes.WIN_HAMMING)))
self.fir_filter_xxx_5.declare_sample_delay(0)
self.fir_filter_xxx_4 = filter.fir_filter_fff(1, (firdes.band_pass(1.0,baseband_rate,57e3-3e3,57e3+3e3,3e3,firdes.WIN_HAMMING)))
self.fir_filter_xxx_4.declare_sample_delay(0)
self.fir_filter_xxx_3 = filter.fir_filter_fff(1, (firdes.band_pass(1.0,baseband_rate,38e3-15e3/2,38e3+15e3/2,1e3,firdes.WIN_HAMMING)))
self.fir_filter_xxx_3.declare_sample_delay(0)
self.fir_filter_xxx_2 = filter.fir_filter_fff(1, (firdes.band_pass(1.0,baseband_rate,19e3-500,19e3+500,1e3,firdes.WIN_HAMMING)))
self.fir_filter_xxx_2.declare_sample_delay(0)
self.fir_filter_xxx_1 = filter.fir_filter_fff(audio_decim, (firdes.low_pass(1.0,baseband_rate,15e3,1e3,firdes.WIN_HAMMING)))
self.fir_filter_xxx_1.declare_sample_delay(0)
self.fir_filter_xxx_0 = filter.fir_filter_ccc(1, (firdes.low_pass(1.0, baseband_rate, 80e3,35e3,firdes.WIN_HAMMING)))
self.fir_filter_xxx_0.declare_sample_delay(0)
self.digital_diff_decoder_bb_0 = digital.diff_decoder_bb(2)
self.blocks_sub_xx_0 = blocks.sub_ff(1)
self.blocks_multiply_xx_0_0 = blocks.multiply_vff(1)
self.blocks_multiply_xx_0 = blocks.multiply_vff(1)
self.blocks_multiply_const_vxx_1 = blocks.multiply_const_vff((10**(1.*volume/10), ))
self.blocks_multiply_const_vxx_0 = blocks.multiply_const_vff((10**(1.*volume/10), ))
self.blocks_add_xx_0 = blocks.add_vff(1)
self.audio_sink_0 = audio.sink(audio_rate, "", True)
self.analog_pll_freqdet_cf_0 = analog.pll_freqdet_cf(1.0*0 + (loop_bw*2*math.pi/baseband_rate), +(2.0 * math.pi * 90e3 / baseband_rate), -(2.0 * math.pi * 90e3 / baseband_rate))
self.analog_fm_deemph_1 = analog.fm_deemph(fs=baseband_rate, tau=75e-6)
self.analog_fm_deemph_0 = analog.fm_deemph(fs=baseband_rate, tau=75e-6)
##################################################
# Connections
##################################################
self.connect((self.uhd_usrp_source_0, 0), (self.freq_xlating_fir_filter_xxx_0, 0))
self.connect((self.freq_xlating_fir_filter_xxx_0, 0), (self.fir_filter_xxx_0, 0))
self.connect((self.fir_filter_xxx_2, 0), (self.blocks_multiply_xx_0, 0))
self.connect((self.fir_filter_xxx_2, 0), (self.blocks_multiply_xx_0, 1))
self.connect((self.fir_filter_xxx_2, 0), (self.blocks_multiply_xx_0_0, 0))
self.connect((self.fir_filter_xxx_2, 0), (self.blocks_multiply_xx_0_0, 1))
self.connect((self.fir_filter_xxx_3, 0), (self.blocks_multiply_xx_0, 2))
self.connect((self.fir_filter_xxx_4, 0), (self.blocks_multiply_xx_0_0, 3))
self.connect((self.fir_filter_xxx_2, 0), (self.blocks_multiply_xx_0_0, 2))
self.connect((self.fir_filter_xxx_1, 0), (self.blocks_sub_xx_0, 0))
self.connect((self.fir_filter_xxx_2, 0), (self.gr_rds_freq_divider_0, 0))
self.connect((self.fir_filter_xxx_1, 0), (self.blocks_add_xx_0, 0))
self.connect((self.blocks_multiply_xx_0, 0), (self.fir_filter_xxx_5, 0))
self.connect((self.gr_rds_freq_divider_0, 0), (self.fir_filter_xxx_7, 0))
self.connect((self.fir_filter_xxx_7, 0), (self.gr_rds_bpsk_demod_0, 1))
self.connect((self.digital_diff_decoder_bb_0, 0), (self.gr_rds_data_decoder_0, 0))
self.connect((self.gr_rds_bpsk_demod_0, 0), (self.digital_diff_decoder_bb_0, 0))
self.connect((self.fir_filter_xxx_6, 0), (self.gr_rds_bpsk_demod_0, 0))
self.connect((self.fir_filter_xxx_2, 0), (self.wxgui_scopesink2_0, 0))
self.connect((self.fir_filter_xxx_1, 0), (self.wxgui_fftsink2_0_0_0, 0))
self.connect((self.fir_filter_xxx_3, 0), (self.wxgui_fftsink2_0_0_0_1, 0))
self.connect((self.fir_filter_xxx_4, 0), (self.wxgui_fftsink2_0_0_0_1_0, 0))
self.connect((self.blocks_multiply_xx_0_0, 0), (self.fir_filter_xxx_6, 0))
self.connect((self.blocks_multiply_xx_0, 0), (self.wxgui_fftsink2_0_0_0_1_0_0, 0))
self.connect((self.fir_filter_xxx_5, 0), (self.blocks_add_xx_0, 1))
self.connect((self.fir_filter_xxx_5, 0), (self.blocks_sub_xx_0, 1))
self.connect((self.fir_filter_xxx_0, 0), (self.analog_pll_freqdet_cf_0, 0))
self.connect((self.analog_pll_freqdet_cf_0, 0), (self.wxgui_fftsink2_0_0, 0))
self.connect((self.analog_pll_freqdet_cf_0, 0), (self.fir_filter_xxx_1, 0))
self.connect((self.analog_pll_freqdet_cf_0, 0), (self.fir_filter_xxx_2, 0))
self.connect((self.analog_pll_freqdet_cf_0, 0), (self.fir_filter_xxx_4, 0))
self.connect((self.blocks_add_xx_0, 0), (self.analog_fm_deemph_0, 0))
self.connect((self.blocks_multiply_xx_0_0, 0), (self.wxgui_fftsink2_0_0_0_1_0_1, 0))
self.connect((self.analog_fm_deemph_0, 0), (self.blocks_multiply_const_vxx_0, 0))
self.connect((self.blocks_multiply_const_vxx_0, 0), (self.rational_resampler_xxx_0, 0))
self.connect((self.rational_resampler_xxx_0, 0), (self.audio_sink_0, 0))
self.connect((self.rational_resampler_xxx_1, 0), (self.audio_sink_0, 1))
self.connect((self.blocks_multiply_const_vxx_1, 0), (self.rational_resampler_xxx_1, 0))
self.connect((self.blocks_sub_xx_0, 0), (self.analog_fm_deemph_1, 0))
self.connect((self.analog_fm_deemph_1, 0), (self.blocks_multiply_const_vxx_1, 0))
self.connect((self.freq_xlating_fir_filter_xxx_0, 0), (self.wxgui_fftsink2_0, 0))
self.connect((self.analog_pll_freqdet_cf_0, 0), (self.fir_filter_xxx_3, 0))
def __init__(self):
grc_wxgui.top_block_gui.__init__(self, title="fmReceiver2")
_icon_path = "/usr/share/icons/hicolor/32x32/apps/gnuradio-grc.png"
self.SetIcon(wx.Icon(_icon_path, wx.BITMAP_TYPE_ANY))
##################################################
# Variables
##################################################
self.samp_rep = samp_rep = 44.1e3
self.samp_rate = samp_rate = 2e6
self.freq = freq = 99.3e6
##################################################
# Blocks
##################################################
_freq_sizer = wx.BoxSizer(wx.VERTICAL)
self._freq_text_box = forms.text_box(
parent=self.GetWin(),
sizer=_freq_sizer,
value=self.freq,
callback=self.set_freq,
label="freq",
converter=forms.float_converter(),
proportion=0,
)
self._freq_slider = forms.slider(
parent=self.GetWin(),
sizer=_freq_sizer,
value=self.freq,
callback=self.set_freq,
minimum=87e6,
maximum=108e6,
num_steps=100,
style=wx.SL_HORIZONTAL,
cast=float,
proportion=1,
)
self.Add(_freq_sizer)
self.wxgui_waterfallsink2_0 = waterfallsink2.waterfall_sink_f(
self.GetWin(),
baseband_freq=0,
dynamic_range=100,
ref_level=0,
ref_scale=2.0,
sample_rate=samp_rate,
fft_size=512,
fft_rate=15,
average=False,
avg_alpha=None,
title="Waterfall Plot",
)
self.Add(self.wxgui_waterfallsink2_0.win)
self.rtlsdr_source_0 = osmosdr.source( args="numchan=" + str(1) + " " + "" )
self.rtlsdr_source_0.set_sample_rate(samp_rate)
self.rtlsdr_source_0.set_center_freq(freq, 0)
self.rtlsdr_source_0.set_freq_corr(0, 0)
self.rtlsdr_source_0.set_dc_offset_mode(0, 0)
self.rtlsdr_source_0.set_iq_balance_mode(0, 0)
self.rtlsdr_source_0.set_gain_mode(0, 0)
self.rtlsdr_source_0.set_gain(10, 0)
self.rtlsdr_source_0.set_if_gain(20, 0)
self.rtlsdr_source_0.set_bb_gain(20, 0)
self.rtlsdr_source_0.set_antenna("", 0)
self.rtlsdr_source_0.set_bandwidth(0, 0)
self.low_pass_filter_0 = filter.fir_filter_ccf(1, firdes.low_pass(
1, samp_rate, 75e3, 150e3, firdes.WIN_HAMMING, 6.76))
self.fractional_interpolator_xx_1 = filter.fractional_interpolator_ff(0, 4)
self.fractional_interpolator_xx_0 = filter.fractional_interpolator_cc(0, 3.968)
self.blocks_multiply_const_vxx_0 = blocks.multiply_const_vff((4, ))
self.audio_sink_0 = audio.sink(44100, "", True)
self.analog_wfm_rcv_0 = analog.wfm_rcv(
quad_rate=5e5,
audio_decimation=4,
)
self.analog_fm_deemph_0 = analog.fm_deemph(fs=samp_rep, tau=50e-6)
##################################################
# Connections
##################################################
self.connect((self.rtlsdr_source_0, 0), (self.low_pass_filter_0, 0))
self.connect((self.low_pass_filter_0, 0), (self.fractional_interpolator_xx_0, 0))
self.connect((self.fractional_interpolator_xx_0, 0), (self.analog_wfm_rcv_0, 0))
self.connect((self.analog_wfm_rcv_0, 0), (self.fractional_interpolator_xx_1, 0))
self.connect((self.fractional_interpolator_xx_1, 0), (self.analog_fm_deemph_0, 0))
self.connect((self.analog_fm_deemph_0, 0), (self.blocks_multiply_const_vxx_0, 0))
self.connect((self.blocks_multiply_const_vxx_0, 0), (self.audio_sink_0, 0))
self.connect((self.analog_wfm_rcv_0, 0), (self.wxgui_waterfallsink2_0, 0))
def __init__(self,frame,panel,vbox,argv):
stdgui2.std_top_block.__init__ (self,frame,panel,vbox,argv)
parser=OptionParser(option_class=eng_option)
parser.add_option("-a", "--args", type="string", default="",
help="UHD device address args [default=%default]")
parser.add_option("", "--spec", type="string", default=None,
help="Subdevice of UHD device where appropriate")
parser.add_option("-A", "--antenna", type="string", default=None,
help="select Rx Antenna where appropriate")
parser.add_option("-f", "--freq", type="eng_float", default=100.1e6,
help="set frequency to FREQ", metavar="FREQ")
parser.add_option("-g", "--gain", type="eng_float", default=None,
help="set gain in dB (default is midpoint)")
parser.add_option("-V", "--volume", type="eng_float", default=None,
help="set volume (default is midpoint)")
parser.add_option("-O", "--audio-output", type="string", default="default",
help="pcm device name. E.g., hw:0,0 or surround51 or /dev/dsp")
parser.add_option("", "--freq-min", type="eng_float", default=87.9e6,
help="Set a minimum frequency [default=%default]")
parser.add_option("", "--freq-max", type="eng_float", default=108.1e6,
help="Set a maximum frequency [default=%default]")
(options, args) = parser.parse_args()
if len(args) != 0:
parser.print_help()
sys.exit(1)
self.frame = frame
self.panel = panel
self.vol = 0
self.state = "FREQ"
self.freq = 0
self.fm_freq_min = options.freq_min
self.fm_freq_max = options.freq_max
# build graph
self.u = uhd.usrp_source(device_addr=options.args, stream_args=uhd.stream_args('fc32'))
# Set the subdevice spec
if(options.spec):
self.u.set_subdev_spec(options.spec, 0)
# Set the antenna
if(options.antenna):
self.u.set_antenna(options.antenna, 0)
usrp_rate = 320e3
demod_rate = 320e3
audio_rate = 32e3
sca_demod_rate = 64e3
audio_decim = int(demod_rate / audio_rate)
sca_chanfilt_decim = int(demod_rate / sca_demod_rate)
self.u.set_samp_rate(usrp_rate)
dev_rate = self.u.get_samp_rate()
nfilts = 32
chan_coeffs = filter.optfir.low_pass(nfilts, # gain
nfilts*usrp_rate, # sampling rate
100e3, # passband cutoff
140e3, # stopband cutoff
0.1, # passband ripple
60) # stopband attenuation
rrate = usrp_rate / dev_rate
self.chan_filt = filter.pfb.arb_resampler_ccf(rrate, chan_coeffs, nfilts)
#Create demodulator block for Main FM Channel
max_dev = 75e3
fm_demod_gain = demod_rate/(2*math.pi*max_dev)
self.fm_demod = analog.quadrature_demod_cf(fm_demod_gain)
# Note - deemphasis is not applied to the Main FM Channel as
# main audio is not decoded
# SCA Devation is 10% of carrier but some references say 20%
# if mono with one SCA (6 KHz seems typical)
max_sca_dev = 6e3
# Create filter to get SCA channel we want
sca_chan_coeffs = filter.firdes.low_pass(1.0, # gain
demod_rate, # sampling rate
max_sca_dev, # cutoff freq
max_sca_dev/3, # trans. band
filter.firdes.WIN_HANN) # filter type
self.ddc = filter.freq_xlating_fir_filter_fcf(sca_chanfilt_decim, # decim rate
sca_chan_coeffs, # taps
0, # freq translation amount (Gets set by the UI)
demod_rate) # input sample rate
#Create demodulator block for SCA Channel
sca_demod_gain = sca_demod_rate/(2*math.pi*max_sca_dev)
self.fm_demod_sca = analog.quadrature_demod_cf(sca_demod_gain)
# SCA analog audio is bandwidth limited to 5 KHz
max_sca_audio_freq = 5.0e3
# SCA analog deephasis is 150 uS (75 uS may be used)
sca_tau = 150e-6
# compute FIR filter taps for SCA audio filter
audio_coeffs = filter.firdes.low_pass(1.0, # gain
sca_demod_rate, # sampling rate
max_sca_audio_freq, # cutoff freq
max_sca_audio_freq/2.5, # trans. band
filter.firdes.WIN_HAMMING)
# input: float; output: float
self.audio_filter = filter.fir_filter_fff(audio_decim, audio_coeffs)
# Create deemphasis block that is applied after SCA demodulation
self.deemph = analog.fm_deemph(audio_rate, sca_tau)
self.volume_control = blocks.multiply_const_ff(self.vol)
# sound card as final sink
self.audio_sink = audio.sink(int (audio_rate),
options.audio_output,
False) # ok_to_block
# now wire it all together
self.connect(self.u, self.chan_filt, self.fm_demod,
self.ddc, self.fm_demod_sca)
self.connect(self.fm_demod_sca, self.audio_filter,
self.deemph, self.volume_control,
self.audio_sink)
self._build_gui(vbox, usrp_rate, demod_rate, sca_demod_rate, audio_rate)
if options.gain is None:
# if no gain was specified, use the mid-point in dB
g = self.u.get_gain_range()
options.gain = float(g.start()+g.stop())/2
if options.volume is None:
g = self.volume_range()
options.volume = float(g[0]+g[1])/2
frange = self.u.get_freq_range()
if(frange.start() > self.fm_freq_max or frange.stop() < self.fm_freq_min):
sys.stderr.write("Radio does not support required frequency range.\n")
sys.exit(1)
if(options.freq < self.fm_freq_min or options.freq > self.fm_freq_max):
sys.stderr.write("Requested frequency is outside of required frequency range.\n")
sys.exit(1)
# set initial values
self.set_gain(options.gain)
self.set_vol(options.volume)
if not(self.set_freq(options.freq)):
self._set_status_msg("Failed to set initial frequency")
self.set_sca_freq(67000) # A common SCA Frequency
def __init__(self):
grc_wxgui.top_block_gui.__init__(self, title="RPi4 FM S RDS")
_icon_path = "/usr/share/icons/hicolor/32x32/apps/gnuradio-grc.png"
self.SetIcon(wx.Icon(_icon_path, wx.BITMAP_TYPE_ANY))
##################################################
# Variables
##################################################
self.samp_rate = samp_rate = 2e6
self.sampleOut = sampleOut = 30000
self.quadrature = quadrature = samp_rate / 10
self.frekvenca = frekvenca = 106900000
##################################################
# Blocks
##################################################
self.nbook = self.nbook = wx.Notebook(self.GetWin(), style=wx.NB_TOP)
self.nbook.AddPage(grc_wxgui.Panel(self.nbook), "Vhodni Spekter")
self.nbook.AddPage(grc_wxgui.Panel(self.nbook), "MPX spekter")
self.nbook.AddPage(grc_wxgui.Panel(self.nbook), "MPX slap")
self.nbook.AddPage(grc_wxgui.Panel(self.nbook), "L+R")
self.nbook.AddPage(grc_wxgui.Panel(self.nbook), "L-R")
self.nbook.AddPage(grc_wxgui.Panel(self.nbook), "RDS spekter")
self.nbook.AddPage(grc_wxgui.Panel(self.nbook), "RDS scope")
self.Add(self.nbook)
_frekvenca_sizer = wx.BoxSizer(wx.VERTICAL)
self._frekvenca_text_box = forms.text_box(
parent=self.GetWin(),
sizer=_frekvenca_sizer,
value=self.frekvenca,
callback=self.set_frekvenca,
label='Frekvenca',
converter=forms.float_converter(),
proportion=0,
)
self._frekvenca_slider = forms.slider(
parent=self.GetWin(),
sizer=_frekvenca_sizer,
value=self.frekvenca,
callback=self.set_frekvenca,
minimum=80000000,
maximum=110000000,
num_steps=1000,
style=wx.SL_HORIZONTAL,
cast=float,
proportion=1,
)
self.Add(_frekvenca_sizer)
self.wxgui_waterfallsink2_0 = waterfallsink2.waterfall_sink_f(
self.nbook.GetPage(2).GetWin(),
baseband_freq=0,
dynamic_range=100,
ref_level=0,
ref_scale=1.0,
sample_rate=140000,
fft_size=512,
fft_rate=15,
average=False,
avg_alpha=None,
title='Waterfall Plot',
)
self.nbook.GetPage(2).Add(self.wxgui_waterfallsink2_0.win)
self.wxgui_scopesink2_1 = scopesink2.scope_sink_c(
self.nbook.GetPage(6).GetWin(),
title='Scope Plot',
sample_rate=2375 * 4,
v_scale=0.0004,
v_offset=0,
t_scale=0,
ac_couple=False,
xy_mode=True,
num_inputs=1,
trig_mode=wxgui.TRIG_MODE_AUTO,
y_axis_label='Counts',
)
self.nbook.GetPage(6).Add(self.wxgui_scopesink2_1.win)
self.wxgui_fftsink2_3 = fftsink2.fft_sink_c(
self.nbook.GetPage(5).GetWin(),
baseband_freq=57000,
y_per_div=10,
y_divs=10,
ref_level=-70,
ref_scale=2.0,
sample_rate=19000,
fft_size=1024,
fft_rate=15,
average=False,
avg_alpha=0.1333,
title='FFT Plot',
peak_hold=False,
)
self.nbook.GetPage(5).Add(self.wxgui_fftsink2_3.win)
self.wxgui_fftsink2_2 = fftsink2.fft_sink_c(
self.nbook.GetPage(0).GetWin(),
baseband_freq=frekvenca,
y_per_div=10,
y_divs=10,
ref_level=0,
ref_scale=2.0,
sample_rate=samp_rate,
fft_size=1024,
fft_rate=15,
average=True,
avg_alpha=0.1333,
title='SDR sprejem',
peak_hold=False,
)
self.nbook.GetPage(0).Add(self.wxgui_fftsink2_2.win)
self.wxgui_fftsink2_1 = fftsink2.fft_sink_f(
self.nbook.GetPage(3).GetWin(),
baseband_freq=0,
y_per_div=10,
y_divs=10,
ref_level=0,
ref_scale=2.0,
sample_rate=sampleOut,
fft_size=1024,
fft_rate=15,
average=True,
avg_alpha=0.1333,
title='L+R',
peak_hold=False,
)
self.nbook.GetPage(3).Add(self.wxgui_fftsink2_1.win)
self.wxgui_fftsink2_0_0_0_1 = fftsink2.fft_sink_f(
self.nbook.GetPage(4).GetWin(),
baseband_freq=0,
y_per_div=10,
y_divs=10,
ref_level=0,
ref_scale=2.0,
sample_rate=30000,
fft_size=1024,
fft_rate=15,
average=True,
avg_alpha=0.1333,
title='L-R',
peak_hold=False,
)
self.nbook.GetPage(4).Add(self.wxgui_fftsink2_0_0_0_1.win)
self.wxgui_fftsink2_0 = fftsink2.fft_sink_f(
self.nbook.GetPage(1).GetWin(),
baseband_freq=0,
y_per_div=10,
y_divs=10,
ref_level=0,
ref_scale=2.0,
sample_rate=140000,
fft_size=1024,
fft_rate=15,
average=True,
avg_alpha=0.1333,
title='MPX spectrum',
peak_hold=False,
win=window.hamming,
)
self.nbook.GetPage(1).Add(self.wxgui_fftsink2_0.win)
self.root_raised_cosine_filter_0 = filter.fir_filter_ccf(
2, firdes.root_raised_cosine(1, 19000, 2375, .35, 100))
self.rational_resampler_xxx_1 = filter.rational_resampler_fff(
interpolation=140,
decimation=280,
taps=None,
fractional_bw=None,
)
self.rational_resampler_xxx_0_0 = filter.rational_resampler_fff(
interpolation=sampleOut / 1000,
decimation=40,
taps=None,
fractional_bw=None,
)
self.rational_resampler_xxx_0 = filter.rational_resampler_fff(
interpolation=sampleOut / 1000,
decimation=int(quadrature / 1000),
taps=None,
fractional_bw=None,
)
self.pfb_arb_resampler_xxx_0 = pfb.arb_resampler_ccf(19000 /
quadrature,
taps=None,
flt_size=32)
self.pfb_arb_resampler_xxx_0.declare_sample_delay(0)
self.osmosdr_source_0 = osmosdr.source(args="numchan=" + str(1) + " " +
'')
self.osmosdr_source_0.set_sample_rate(samp_rate)
self.osmosdr_source_0.set_center_freq(frekvenca, 0)
self.osmosdr_source_0.set_freq_corr(0, 0)
self.osmosdr_source_0.set_dc_offset_mode(2, 0)
self.osmosdr_source_0.set_iq_balance_mode(0, 0)
self.osmosdr_source_0.set_gain_mode(False, 0)
self.osmosdr_source_0.set_gain(10, 0)
self.osmosdr_source_0.set_if_gain(20, 0)
self.osmosdr_source_0.set_bb_gain(20, 0)
self.osmosdr_source_0.set_antenna('', 0)
self.osmosdr_source_0.set_bandwidth(0, 0)
self.low_pass_filter_0 = filter.fir_filter_ccf(
10,
firdes.low_pass(1, samp_rate, 75000, 25000, firdes.WIN_HAMMING,
6.76))
self.gr_rds_parser_0 = rds.parser(True, False, 0)
self.gr_rds_panel_0 = rds.rdsPanel(frekvenca, self.GetWin())
self.Add(self.gr_rds_panel_0.panel)
self.gr_rds_decoder_0 = rds.decoder(False, False)
self.freq_xlating_fir_filter_xxx_2 = filter.freq_xlating_fir_filter_fcf(
5, (firdes.low_pass(1.0, 200000, 13e3, 3e3, firdes.WIN_HAMMING)),
38000, 200000)
self.digital_psk_demod_0 = digital.psk.psk_demod(
constellation_points=2,
differential=False,
samples_per_symbol=4,
excess_bw=0.35,
phase_bw=6.28 / 100.0,
timing_bw=6.28 / 100.0,
mod_code="gray",
verbose=False,
log=False,
)
self.digital_diff_decoder_bb_0 = digital.diff_decoder_bb(2)
self.blocks_sub_xx_0 = blocks.sub_ff(1)
self.blocks_keep_one_in_n_0 = blocks.keep_one_in_n(
gr.sizeof_char * 1, 2)
self.blocks_complex_to_real_0 = blocks.complex_to_real(1)
self.blocks_add_xx_0 = blocks.add_vff(1)
self.audio_sink_0 = audio.sink(sampleOut, 'hw:0,0', True)
self.analog_wfm_rcv_0 = analog.wfm_rcv(
quad_rate=quadrature,
audio_decimation=1,
)
self.analog_fm_deemph_0_0_0 = analog.fm_deemph(fs=sampleOut, tau=75e-6)
self.analog_fm_deemph_0_0 = analog.fm_deemph(fs=sampleOut, tau=75e-6)
self.aa = filter.freq_xlating_fir_filter_fcc(
1, (filter.firdes.low_pass_2(1, samp_rate / 10, 2000, 500, 60)),
57000, quadrature)
##################################################
# Connections
##################################################
self.msg_connect((self.gr_rds_decoder_0, 'out'),
(self.gr_rds_parser_0, 'in'))
self.msg_connect((self.gr_rds_parser_0, 'out'),
(self.gr_rds_panel_0, 'in'))
self.connect((self.aa, 0), (self.pfb_arb_resampler_xxx_0, 0))
self.connect((self.analog_fm_deemph_0_0, 0), (self.audio_sink_0, 0))
self.connect((self.analog_fm_deemph_0_0_0, 0), (self.audio_sink_0, 1))
self.connect((self.analog_wfm_rcv_0, 0), (self.aa, 0))
self.connect((self.analog_wfm_rcv_0, 0),
(self.freq_xlating_fir_filter_xxx_2, 0))
self.connect((self.analog_wfm_rcv_0, 0),
(self.rational_resampler_xxx_0, 0))
self.connect((self.analog_wfm_rcv_0, 0),
(self.rational_resampler_xxx_1, 0))
self.connect((self.blocks_add_xx_0, 0),
(self.analog_fm_deemph_0_0_0, 0))
self.connect((self.blocks_complex_to_real_0, 0),
(self.rational_resampler_xxx_0_0, 0))
self.connect((self.blocks_keep_one_in_n_0, 0),
(self.digital_diff_decoder_bb_0, 0))
self.connect((self.blocks_sub_xx_0, 0), (self.analog_fm_deemph_0_0, 0))
self.connect((self.digital_diff_decoder_bb_0, 0),
(self.gr_rds_decoder_0, 0))
self.connect((self.digital_psk_demod_0, 0),
(self.blocks_keep_one_in_n_0, 0))
self.connect((self.freq_xlating_fir_filter_xxx_2, 0),
(self.blocks_complex_to_real_0, 0))
self.connect((self.low_pass_filter_0, 0), (self.analog_wfm_rcv_0, 0))
self.connect((self.osmosdr_source_0, 0), (self.low_pass_filter_0, 0))
self.connect((self.osmosdr_source_0, 0), (self.wxgui_fftsink2_2, 0))
self.connect((self.pfb_arb_resampler_xxx_0, 0),
(self.root_raised_cosine_filter_0, 0))
self.connect((self.pfb_arb_resampler_xxx_0, 0),
(self.wxgui_fftsink2_3, 0))
self.connect((self.rational_resampler_xxx_0, 0),
(self.blocks_add_xx_0, 1))
self.connect((self.rational_resampler_xxx_0, 0),
(self.blocks_sub_xx_0, 1))
self.connect((self.rational_resampler_xxx_0, 0),
(self.wxgui_fftsink2_1, 0))
self.connect((self.rational_resampler_xxx_0_0, 0),
(self.blocks_add_xx_0, 0))
self.connect((self.rational_resampler_xxx_0_0, 0),
(self.blocks_sub_xx_0, 0))
self.connect((self.rational_resampler_xxx_0_0, 0),
(self.wxgui_fftsink2_0_0_0_1, 0))
self.connect((self.rational_resampler_xxx_1, 0),
(self.wxgui_fftsink2_0, 0))
self.connect((self.rational_resampler_xxx_1, 0),
(self.wxgui_waterfallsink2_0, 0))
self.connect((self.root_raised_cosine_filter_0, 0),
(self.digital_psk_demod_0, 0))
self.connect((self.root_raised_cosine_filter_0, 0),
(self.wxgui_scopesink2_1, 0))
def __init__(self):
gr.top_block.__init__(self, "RX logic")
##################################################
# Variables
##################################################
self.samp_rate = samp_rate = 192000
self.mode = mode = 2
self.bw = bw = 3200
self.aud_rate = aud_rate = 22050
self.visualsq = visualsq = 1
self.st = st = 1
self.sq = sq = -700
self.sb_pos = sb_pos = ((bw*mode==2)-(bw*mode==3))
self.rec = rec = 1
self.laj_0 = laj_0 = 0
self.laj = laj = 0
self.lai_0 = lai_0 = 0
self.lai = lai = 0
self.freq = freq = 98500000
self.device = device = "fcd=0,type=2"
self.dev = dev = 19000
self.decimation = decimation = samp_rate/aud_rate
self.batswitch = batswitch = 0
self.batido = batido = 2950
self.VEC = VEC = 1280
##################################################
# Blocks
##################################################
self.rtlsdr_source_0 = osmosdr.source( args="nchan=" + str(1) + " " + device )
self.rtlsdr_source_0.set_sample_rate(samp_rate)
self.rtlsdr_source_0.set_center_freq(freq, 0)
self.rtlsdr_source_0.set_freq_corr(7, 0)
self.rtlsdr_source_0.set_dc_offset_mode(0, 0)
self.rtlsdr_source_0.set_iq_balance_mode(0, 0)
self.rtlsdr_source_0.set_gain_mode(0, 0)
self.rtlsdr_source_0.set_gain(14, 0)
self.rtlsdr_source_0.set_if_gain(14, 0)
self.rtlsdr_source_0.set_bb_gain(14, 0)
self.rtlsdr_source_0.set_antenna("", 0)
self.rtlsdr_source_0.set_bandwidth(0, 0)
self.probe_st = analog.probe_avg_mag_sqrd_f(10, 1)
self.low_pass_filter_0_2 = filter.fir_filter_ccf(decimation, firdes.low_pass(
1, samp_rate, bw*(2+(mode==2)+(mode==3)), 500, firdes.WIN_HAMMING, 6.76))
self.low_pass_filter_0_1_0_0_0 = filter.fir_filter_fff(1, firdes.low_pass(
1, samp_rate, 14000, 1000, firdes.WIN_HAMMING, 6.76))
self.low_pass_filter_0_1 = filter.fir_filter_fff(1, firdes.low_pass(
30, samp_rate, 14000, 1000, firdes.WIN_HAMMING, 6.76))
self.low_pass_filter_0_0_0_0 = filter.interp_fir_filter_fff(1, firdes.low_pass(
visualsq, samp_rate/decimation, bw, 10, firdes.WIN_HAMMING, 6.76))
self.low_pass_filter_0_0_0 = filter.fir_filter_ccf(1, firdes.low_pass(
1, samp_rate/decimation, bw, 10, firdes.WIN_HAMMING, 6.76))
self.high_pass_filter_0 = filter.fir_filter_ccf(1, firdes.high_pass(
1, samp_rate/decimation, bw, 10, firdes.WIN_HAMMING, 6.76))
self.fractional_resampler_xx_0_0_0 = filter.fractional_resampler_ff(0, samp_rate/48000.0)
self.fractional_resampler_xx_0_0 = filter.fractional_resampler_ff(0, samp_rate/48000.0)
self.fractional_resampler_xx_0 = filter.fractional_resampler_ff(0, (samp_rate/decimation)/48000.0)
self.fft_vxx_0 = fft.fft_vcc(VEC, True, (window.blackmanharris(1024)), True, 1)
self.fft_probe = blocks.probe_signal_vf(VEC)
self.blocks_wavfile_sink_0 = blocks.wavfile_sink("/tmp/CAPTURE.WAV", 2, 48000, 16)
self.blocks_sub_xx_0 = blocks.sub_ff(1)
self.blocks_stream_to_vector_0 = blocks.stream_to_vector(gr.sizeof_gr_complex*1, VEC)
self.blocks_multiply_xx_0_1_0 = blocks.multiply_vff(1)
self.blocks_multiply_xx_0_0_0 = blocks.multiply_vcc(1)
self.blocks_multiply_xx_0 = blocks.multiply_vcc(1)
self.blocks_complex_to_real_0_0_0_0 = blocks.complex_to_real(1)
self.blocks_complex_to_mag_squared_0 = blocks.complex_to_mag_squared(VEC)
self.blocks_add_xx_0 = blocks.add_vff(1)
self.blocks_add_const_vxx_0 = blocks.add_const_vcc((-complex(lai,laj), ))
self.blks2_valve_0_1 = grc_blks2.valve(item_size=gr.sizeof_float*1, open=bool(rec))
self.blks2_valve_0_0_1 = grc_blks2.valve(item_size=gr.sizeof_gr_complex*1, open=bool(mode!=5))
self.blks2_valve_0_0_0 = grc_blks2.valve(item_size=gr.sizeof_gr_complex*1, open=bool(0))
self.blks2_valve_0_0 = grc_blks2.valve(item_size=gr.sizeof_gr_complex*1, open=bool(mode!=4))
self.blks2_valve_0 = grc_blks2.valve(item_size=gr.sizeof_float*1, open=bool(rec))
self.blks2_selector_0_1_0 = grc_blks2.selector(
item_size=gr.sizeof_gr_complex*1,
num_inputs=2,
num_outputs=1,
input_index=(mode==3),
output_index=0,
)
self.blks2_selector_0_0_1_0 = grc_blks2.selector(
item_size=gr.sizeof_float*1,
num_inputs=3,
num_outputs=1,
input_index=(mode>3)+(mode>4),
output_index=0,
)
self.blks2_selector_0_0_1 = grc_blks2.selector(
item_size=gr.sizeof_float*1,
num_inputs=3,
num_outputs=1,
input_index=(mode>3)+(mode>4),
output_index=0,
)
self.blks2_selector_0_0 = grc_blks2.selector(
item_size=gr.sizeof_float*1,
num_inputs=4,
num_outputs=1,
input_index=mode,
output_index=0,
)
self.blks2_selector_0 = grc_blks2.selector(
item_size=gr.sizeof_gr_complex*1,
num_inputs=1,
num_outputs=4,
input_index=0,
output_index=mode,
)
self.band_pass_filter_0_0_0 = filter.fir_filter_fff(1, firdes.band_pass(
250, samp_rate, 18500, 19500, 500, firdes.WIN_HAMMING, 6.76))
self.band_pass_filter_0_0 = filter.fir_filter_fff(1, firdes.band_pass(
120, samp_rate, 24000, 52000, 1000, firdes.WIN_HAMMING, 6.76))
self.audio_sink_0 = audio.sink(48000, "dmix:CARD=Pro,DEV=0", False)
self.analog_wfm_rcv_1 = analog.wfm_rcv(
quad_rate=samp_rate,
audio_decimation=1,
)
self.analog_sig_source_x_0_0_0 = analog.sig_source_c(samp_rate/decimation, analog.GR_COS_WAVE, -bw, 1, 0)
self.analog_sig_source_x_0 = analog.sig_source_c(samp_rate, analog.GR_COS_WAVE, dev+(bw*mode==2)+(bw*mode==3), 1, 0)
self.analog_quadrature_demod_cf_0 = analog.quadrature_demod_cf(0.25)
self.analog_fm_demod_cf_0 = analog.fm_demod_cf(
channel_rate=samp_rate,
audio_decim=samp_rate/48000,
deviation=50000,
audio_pass=15000,
audio_stop=16000,
gain=3.0,
tau=50e-6,
)
self.analog_fm_deemph_0_0 = analog.fm_deemph(fs=48000, tau=50e-6)
self.analog_fm_deemph_0 = analog.fm_deemph(fs=48000, tau=50e-6)
self.analog_feedforward_agc_cc_0 = analog.feedforward_agc_cc(64, 0.9)
self.analog_am_demod_cf_0 = analog.am_demod_cf(
channel_rate=samp_rate/decimation,
audio_decim=samp_rate/decimation/aud_rate,
audio_pass=(samp_rate/decimation/2)-500,
audio_stop=(samp_rate/decimation/2)-100,
)
self.analog_agc3_xx_0 = analog.agc3_cc(0.0001, 0.0001, 0.9, 0.1)
self.analog_agc3_xx_0.set_max_gain(200)
##################################################
# Connections
##################################################
self.connect((self.blocks_complex_to_mag_squared_0, 0), (self.fft_probe, 0))
self.connect((self.analog_sig_source_x_0, 0), (self.blocks_multiply_xx_0, 1))
self.connect((self.blks2_valve_0_0_0, 0), (self.blocks_multiply_xx_0, 0))
self.connect((self.blocks_stream_to_vector_0, 0), (self.fft_vxx_0, 0))
self.connect((self.fft_vxx_0, 0), (self.blocks_complex_to_mag_squared_0, 0))
self.connect((self.blocks_add_const_vxx_0, 0), (self.blks2_valve_0_0, 0))
self.connect((self.band_pass_filter_0_0, 0), (self.blocks_multiply_xx_0_1_0, 0))
self.connect((self.low_pass_filter_0_1, 0), (self.analog_fm_deemph_0, 0))
self.connect((self.analog_fm_deemph_0, 0), (self.blocks_add_xx_0, 0))
self.connect((self.analog_wfm_rcv_1, 0), (self.low_pass_filter_0_1, 0))
self.connect((self.analog_wfm_rcv_1, 0), (self.band_pass_filter_0_0, 0))
self.connect((self.analog_wfm_rcv_1, 0), (self.band_pass_filter_0_0_0, 0))
self.connect((self.analog_fm_deemph_0_0, 0), (self.blocks_add_xx_0, 1))
self.connect((self.low_pass_filter_0_1_0_0_0, 0), (self.analog_fm_deemph_0_0, 0))
self.connect((self.analog_agc3_xx_0, 0), (self.analog_wfm_rcv_1, 0))
self.connect((self.blks2_valve_0_0_1, 0), (self.analog_agc3_xx_0, 0))
self.connect((self.blocks_add_const_vxx_0, 0), (self.blks2_valve_0_0_1, 0))
self.connect((self.blocks_multiply_xx_0_1_0, 0), (self.low_pass_filter_0_1_0_0_0, 0))
self.connect((self.band_pass_filter_0_0_0, 0), (self.blocks_multiply_xx_0_1_0, 1))
self.connect((self.band_pass_filter_0_0_0, 0), (self.blocks_multiply_xx_0_1_0, 2))
self.connect((self.analog_fm_deemph_0_0, 0), (self.blocks_sub_xx_0, 1))
self.connect((self.analog_fm_deemph_0, 0), (self.blocks_sub_xx_0, 0))
self.connect((self.blocks_sub_xx_0, 0), (self.fractional_resampler_xx_0_0_0, 0))
self.connect((self.blocks_add_xx_0, 0), (self.fractional_resampler_xx_0_0, 0))
self.connect((self.blks2_valve_0_0, 0), (self.analog_fm_demod_cf_0, 0))
self.connect((self.blocks_add_const_vxx_0, 0), (self.blocks_stream_to_vector_0, 0))
self.connect((self.blocks_add_const_vxx_0, 0), (self.blks2_valve_0_0_0, 0))
self.connect((self.blocks_multiply_xx_0, 0), (self.low_pass_filter_0_2, 0))
self.connect((self.blocks_complex_to_real_0_0_0_0, 0), (self.blks2_selector_0_0, 3))
self.connect((self.blocks_complex_to_real_0_0_0_0, 0), (self.blks2_selector_0_0, 2))
self.connect((self.blks2_selector_0_1_0, 0), (self.blocks_multiply_xx_0_0_0, 0))
self.connect((self.blocks_multiply_xx_0_0_0, 0), (self.blocks_complex_to_real_0_0_0_0, 0))
self.connect((self.analog_sig_source_x_0_0_0, 0), (self.blocks_multiply_xx_0_0_0, 1))
self.connect((self.analog_am_demod_cf_0, 0), (self.blks2_selector_0_0, 0))
self.connect((self.blks2_selector_0, 0), (self.analog_am_demod_cf_0, 0))
self.connect((self.analog_quadrature_demod_cf_0, 0), (self.blks2_selector_0_0, 1))
self.connect((self.blks2_selector_0, 1), (self.analog_quadrature_demod_cf_0, 0))
self.connect((self.blks2_selector_0_0, 0), (self.low_pass_filter_0_0_0_0, 0))
self.connect((self.blks2_selector_0, 2), (self.high_pass_filter_0, 0))
self.connect((self.blks2_selector_0, 3), (self.low_pass_filter_0_0_0, 0))
self.connect((self.high_pass_filter_0, 0), (self.blks2_selector_0_1_0, 0))
self.connect((self.low_pass_filter_0_0_0, 0), (self.blks2_selector_0_1_0, 1))
self.connect((self.analog_fm_demod_cf_0, 0), (self.blks2_selector_0_0_1, 1))
self.connect((self.analog_fm_demod_cf_0, 0), (self.blks2_selector_0_0_1_0, 1))
self.connect((self.fractional_resampler_xx_0_0_0, 0), (self.blks2_selector_0_0_1_0, 2))
self.connect((self.fractional_resampler_xx_0_0, 0), (self.blks2_selector_0_0_1, 2))
self.connect((self.blks2_selector_0_0_1_0, 0), (self.audio_sink_0, 1))
self.connect((self.blks2_selector_0_0_1, 0), (self.audio_sink_0, 0))
self.connect((self.blks2_valve_0, 0), (self.blocks_wavfile_sink_0, 1))
self.connect((self.blks2_selector_0_0_1_0, 0), (self.blks2_valve_0, 0))
self.connect((self.blks2_selector_0_0_1, 0), (self.blks2_valve_0_1, 0))
self.connect((self.blks2_valve_0_1, 0), (self.blocks_wavfile_sink_0, 0))
self.connect((self.fractional_resampler_xx_0, 0), (self.blks2_selector_0_0_1_0, 0))
self.connect((self.fractional_resampler_xx_0, 0), (self.blks2_selector_0_0_1, 0))
self.connect((self.low_pass_filter_0_2, 0), (self.analog_feedforward_agc_cc_0, 0))
self.connect((self.rtlsdr_source_0, 0), (self.blocks_add_const_vxx_0, 0))
self.connect((self.low_pass_filter_0_0_0_0, 0), (self.fractional_resampler_xx_0, 0))
self.connect((self.analog_feedforward_agc_cc_0, 0), (self.blks2_selector_0, 0))
self.connect((self.band_pass_filter_0_0_0, 0), (self.probe_st, 0))
def __init__(self, demod_rate, audio_decimation, deemph_tau):
"""
Hierarchical block for demodulating a broadcast FM signal.
The input is the downconverted complex baseband signal (gr_complex).
The output is two streams of the demodulated audio (float) 0=Left, 1=Right.
Args:
demod_rate: input sample rate of complex baseband input. (float)
audio_decimation: how much to decimate demod_rate to get to audio. (integer)
deemph_tau: deemphasis ime constant in seconds (75us in US, 50us in EUR). (float)
"""
gr.hier_block2.__init__(self, "wfm_rcv_pll",
# Input signature
gr.io_signature(1, 1, gr.sizeof_gr_complex),
gr.io_signature(2, 2, gr.sizeof_float)) # Output signature
if audio_decimation != int(audio_decimation):
raise ValueError("audio_decimation needs to be an integer")
audio_decimation = int(audio_decimation)
##################################################
# Variables
##################################################
self.demod_rate = demod_rate
self.deemph_tau = deemph_tau
self.stereo_carrier_filter_coeffs = stereo_carrier_filter_coeffs = firdes.band_pass(
-2.0, demod_rate, 37600, 38400, 400, fft.window.WIN_HAMMING, 6.76)
self.pilot_carrier_filter_coeffs = pilot_carrier_filter_coeffs = firdes.complex_band_pass(
1.0, demod_rate, 18980, 19020, 1500, fft.window.WIN_HAMMING, 6.76)
self.deviation = deviation = 75000
self.audio_filter_coeffs = audio_filter_coeffs = firdes.low_pass(
1, demod_rate, 15000, 1500, fft.window.WIN_HAMMING, 6.76)
self.audio_decim = audio_decim = audio_decimation
self.audio_rate = audio_rate = demod_rate / audio_decim
self.samp_delay = samp_delay = (len(
pilot_carrier_filter_coeffs) - 1) // 2 + (len(stereo_carrier_filter_coeffs) - 1) // 2
##################################################
# Blocks
##################################################
self.pilot_carrier_bpf = filter.fir_filter_fcc(
1, pilot_carrier_filter_coeffs)
self.pilot_carrier_bpf.declare_sample_delay(0)
self.stereo_carrier_bpf = filter.fft_filter_fff(
1, stereo_carrier_filter_coeffs, 1)
self.stereo_carrier_bpf.declare_sample_delay(0)
self.stereo_audio_lpf = filter.fft_filter_fff(
audio_decim, audio_filter_coeffs, 1)
self.stereo_audio_lpf.declare_sample_delay(0)
self.mono_audio_lpf = filter.fft_filter_fff(
audio_decim, audio_filter_coeffs, 1)
self.mono_audio_lpf.declare_sample_delay(0)
self.blocks_stereo_multiply = blocks.multiply_ff(1)
self.blocks_pilot_multiply = blocks.multiply_cc(1)
self.blocks_complex_to_imag = blocks.complex_to_imag(1)
self.blocks_right_sub = blocks.sub_ff(1)
self.blocks_left_add = blocks.add_ff(1)
self.analog_quadrature_demod_cf = analog.quadrature_demod_cf(
demod_rate / (2 * math.pi * deviation))
self.analog_pll_refout_cc = analog.pll_refout_cc(
0.001, 2 * math.pi * 19200 / demod_rate, 2 * math.pi * 18800 / demod_rate)
self.analog_right_fm_deemph = analog.fm_deemph(
fs=audio_rate, tau=deemph_tau)
self.analog_left_fm_deemph = analog.fm_deemph(
fs=audio_rate, tau=deemph_tau)
self.blocks_delay_0 = blocks.delay(gr.sizeof_float * 1, samp_delay)
##################################################
# Connections
##################################################
self.connect((self.analog_left_fm_deemph, 0), (self, 0))
self.connect((self.analog_right_fm_deemph, 0), (self, 1))
self.connect((self.analog_pll_refout_cc, 0),
(self.blocks_pilot_multiply, 1))
self.connect((self.analog_pll_refout_cc, 0),
(self.blocks_pilot_multiply, 0))
self.connect((self.analog_quadrature_demod_cf, 0),
(self.blocks_delay_0, 0))
self.connect((self.blocks_delay_0, 0),
(self.blocks_stereo_multiply, 0))
self.connect((self.blocks_delay_0, 0), (self.mono_audio_lpf, 0))
self.connect((self.analog_quadrature_demod_cf, 0),
(self.pilot_carrier_bpf, 0))
self.connect((self.blocks_left_add, 0),
(self.analog_left_fm_deemph, 0))
self.connect((self.blocks_right_sub, 0),
(self.analog_right_fm_deemph, 0))
self.connect((self.blocks_complex_to_imag, 0),
(self.stereo_carrier_bpf, 0))
self.connect((self.blocks_pilot_multiply, 0),
(self.blocks_complex_to_imag, 0))
self.connect((self.blocks_stereo_multiply, 0),
(self.stereo_audio_lpf, 0)) # L - R path
self.connect((self.mono_audio_lpf, 0), (self.blocks_left_add, 1))
self.connect((self.mono_audio_lpf, 0), (self.blocks_right_sub, 0))
self.connect((self.stereo_audio_lpf, 0), (self.blocks_left_add, 0))
self.connect((self.stereo_audio_lpf, 0), (self.blocks_right_sub, 1))
self.connect((self.stereo_carrier_bpf, 0),
(self.blocks_stereo_multiply, 1))
self.connect((self.pilot_carrier_bpf, 0),
(self.analog_pll_refout_cc, 0))
self.connect((self, 0), (self.analog_quadrature_demod_cf, 0))
def __init__(self):
grc_wxgui.top_block_gui.__init__(self, title="FM Stereo Receiver")
##################################################
# Variables
##################################################
self.smux_filt_samprate = smux_filt_samprate = 256e3
self.smux_decim = smux_decim = 8
self.samp_rate = samp_rate = 2.048e6
self.right_gain = right_gain = 3
self.left_gain = left_gain = 3
self.bpf_base = bpf_base = 23e3
self.RF_Gain = RF_Gain = 45
self.CF = CF = 99.3e6
##################################################
# Blocks
##################################################
self._samp_rate_text_box = forms.text_box(
parent=self.GetWin(),
value=self.samp_rate,
callback=self.set_samp_rate,
label=
"Sample Rate: 1.024M, 1.4M, 1.8M, 1.92M, 2.048M, 2.4M & 2. 56M",
converter=forms.float_converter(),
)
self.GridAdd(self._samp_rate_text_box, 1, 0, 1, 1)
_right_gain_sizer = wx.BoxSizer(wx.VERTICAL)
self._right_gain_text_box = forms.text_box(
parent=self.GetWin(),
sizer=_right_gain_sizer,
value=self.right_gain,
callback=self.set_right_gain,
label="R Audio Gain",
converter=forms.float_converter(),
proportion=0,
)
self._right_gain_slider = forms.slider(
parent=self.GetWin(),
sizer=_right_gain_sizer,
value=self.right_gain,
callback=self.set_right_gain,
minimum=0,
maximum=5,
num_steps=100,
style=wx.SL_HORIZONTAL,
cast=float,
proportion=1,
)
self.GridAdd(_right_gain_sizer, 0, 1, 1, 1)
self.notebook_0 = self.notebook_0 = wx.Notebook(self.GetWin(),
style=wx.NB_TOP)
self.notebook_0.AddPage(grc_wxgui.Panel(self.notebook_0),
"BB Spectrum")
self.notebook_0.AddPage(grc_wxgui.Panel(self.notebook_0),
"Demod Spectrum")
self.notebook_0.AddPage(grc_wxgui.Panel(self.notebook_0),
"Stereo Spectrum")
self.notebook_0.AddPage(grc_wxgui.Panel(self.notebook_0),
"Stereo Signal")
self.GridAdd(self.notebook_0, 2, 0, 1, 2)
_left_gain_sizer = wx.BoxSizer(wx.VERTICAL)
self._left_gain_text_box = forms.text_box(
parent=self.GetWin(),
sizer=_left_gain_sizer,
value=self.left_gain,
callback=self.set_left_gain,
label="L Audio Gain",
converter=forms.float_converter(),
proportion=0,
)
self._left_gain_slider = forms.slider(
parent=self.GetWin(),
sizer=_left_gain_sizer,
value=self.left_gain,
callback=self.set_left_gain,
minimum=0,
maximum=5,
num_steps=100,
style=wx.SL_HORIZONTAL,
cast=float,
proportion=1,
)
self.GridAdd(_left_gain_sizer, 0, 0, 1, 1)
_RF_Gain_sizer = wx.BoxSizer(wx.VERTICAL)
self._RF_Gain_text_box = forms.text_box(
parent=self.GetWin(),
sizer=_RF_Gain_sizer,
value=self.RF_Gain,
callback=self.set_RF_Gain,
label="RF Gain",
converter=forms.float_converter(),
proportion=0,
)
self._RF_Gain_slider = forms.slider(
parent=self.GetWin(),
sizer=_RF_Gain_sizer,
value=self.RF_Gain,
callback=self.set_RF_Gain,
minimum=0,
maximum=100,
num_steps=45,
style=wx.SL_HORIZONTAL,
cast=float,
proportion=1,
)
self.GridAdd(_RF_Gain_sizer, 1, 1, 1, 1)
self.wxgui_waterfallsink2_0 = waterfallsink2.waterfall_sink_c(
self.notebook_0.GetPage(0).GetWin(),
baseband_freq=0,
dynamic_range=100,
ref_level=0,
ref_scale=2.0,
sample_rate=samp_rate,
fft_size=512,
fft_rate=15,
average=False,
avg_alpha=None,
title="Baseband Waterfall",
size=(800, 100),
)
self.notebook_0.GetPage(0).GridAdd(self.wxgui_waterfallsink2_0.win, 3,
0, 1, 2)
self.wxgui_scopesink2_0 = scopesink2.scope_sink_f(
self.notebook_0.GetPage(3).GetWin(),
title="Scope Plot",
sample_rate=32e3,
v_scale=0,
v_offset=0,
t_scale=0,
ac_couple=False,
xy_mode=False,
num_inputs=2,
trig_mode=wxgui.TRIG_MODE_AUTO,
y_axis_label="Counts",
size=(800, 500),
)
self.notebook_0.GetPage(3).Add(self.wxgui_scopesink2_0.win)
self.wxgui_fftsink2_0_1 = fftsink2.fft_sink_f(
self.notebook_0.GetPage(2).GetWin(),
baseband_freq=0,
y_per_div=10,
y_divs=10,
ref_level=0,
ref_scale=2.0,
sample_rate=32e3,
fft_size=1024,
fft_rate=15,
average=False,
avg_alpha=None,
title="Difference FFT ",
peak_hold=False,
)
self.notebook_0.GetPage(2).Add(self.wxgui_fftsink2_0_1.win)
self.wxgui_fftsink2_0_0_0 = fftsink2.fft_sink_f(
self.notebook_0.GetPage(1).GetWin(),
baseband_freq=0,
y_per_div=10,
y_divs=10,
ref_level=0,
ref_scale=2.0,
sample_rate=samp_rate / 8,
fft_size=1024,
fft_rate=15,
average=False,
avg_alpha=None,
title="Demodulated FFT",
peak_hold=False,
size=(800, 800),
)
self.notebook_0.GetPage(1).Add(self.wxgui_fftsink2_0_0_0.win)
self.wxgui_fftsink2_0_0 = fftsink2.fft_sink_c(
self.notebook_0.GetPage(0).GetWin(),
baseband_freq=0,
y_per_div=10,
y_divs=10,
ref_level=0,
ref_scale=2.0,
sample_rate=samp_rate,
fft_size=1024,
fft_rate=15,
average=False,
avg_alpha=None,
title="Baseband FFT",
peak_hold=False,
size=(800, 100),
)
self.notebook_0.GetPage(0).GridAdd(self.wxgui_fftsink2_0_0.win, 2, 0,
1, 2)
self.wxgui_fftsink2_0 = fftsink2.fft_sink_f(
self.notebook_0.GetPage(2).GetWin(),
baseband_freq=0,
y_per_div=10,
y_divs=10,
ref_level=0,
ref_scale=2.0,
sample_rate=32e3,
fft_size=1024,
fft_rate=15,
average=False,
avg_alpha=None,
title="Sum FFT",
peak_hold=False,
)
self.notebook_0.GetPage(2).Add(self.wxgui_fftsink2_0.win)
self.rfgain = blocks.multiply_const_vcc((RF_Gain, ))
self.low_pass_filter_1_0 = filter.fir_filter_fff(
smux_decim,
firdes.low_pass(1, smux_filt_samprate, 15e3, 500,
firdes.WIN_HAMMING, 1))
self.low_pass_filter_0 = filter.fir_filter_ccf(
2,
firdes.low_pass(2, samp_rate / 4, 100e3, 500, firdes.WIN_KAISER,
6.76))
self.iir_filter_xxx_0 = filter.iir_filter_ccf(
(-0.00266, 0.00504, -0.00309, -0.00136, 0.00663, -0.01052, 0.01103,
-0.00731, 0.00016, 0.00800, -0.01396, 0.01490, -0.00971, -0.00035,
0.01173, -0.01979, 0.02054, -0.01240, -0.00273, 0.01960, -0.03122,
0.03124, -0.01669, -0.01017, 0.04137, -0.06448, 0.06476, -0.02634,
-0.07449, 0.33571, -0.00000, -0.33571, 0.07449, 0.02634, -0.06476,
0.06448, -0.04137, 0.01017, 0.01669, -0.03124, 0.03122, -0.01960,
0.00273, 0.01240, -0.02054, 0.01979, -0.01173, 0.00035, 0.00971,
-0.01490, 0.01396, -0.00800, -0.00016, 0.00731, -0.01103, 0.01052,
-0.00663, 0.00136, 0.00309, -0.00504, 0.00266), (1, ), False)
self.fir_filter_xxx_0_0 = filter.fir_filter_ccf(4, (1, 1, 1, 1))
self.fir_filter_xxx_0_0.declare_sample_delay(0)
self.blocks_throttle_0 = blocks.throttle(gr.sizeof_gr_complex * 1,
samp_rate, True)
self.blocks_sub_xx_0 = blocks.sub_ff(1)
self.blocks_multiply_xx_1_0 = blocks.multiply_vcc(1)
self.blocks_multiply_xx_0 = blocks.multiply_vff(1)
self.blocks_multiply_const_vxx_0_0 = blocks.multiply_const_vff(
(right_gain, ))
self.blocks_multiply_const_vxx_0 = blocks.multiply_const_vff(
(left_gain, ))
self.blocks_multiply_conjugate_cc_0 = blocks.multiply_conjugate_cc(1)
self.blocks_float_to_complex_0 = blocks.float_to_complex(1)
self.blocks_file_source_0_0 = blocks.file_source(
gr.sizeof_gr_complex * 1,
"/Users/bretttt/iCloud_drive/16S/engs110/project/radio_dat/IQ_Data_STEREO1",
True)
self.blocks_divide_xx_1 = blocks.divide_cc(1)
self.blocks_delay_2 = blocks.delay(gr.sizeof_gr_complex * 1, 30)
self.blocks_complex_to_real_0 = blocks.complex_to_real(1)
self.blocks_complex_to_mag_0 = blocks.complex_to_mag(1)
self.blocks_complex_to_imag_0 = blocks.complex_to_imag(1)
self.blocks_add_xx_0 = blocks.add_vff(1)
self.blocks_add_const_vxx_0 = blocks.add_const_vcc((0.1, ))
self.baseband_LPF = filter.fir_filter_fff(
smux_decim,
firdes.low_pass(1, smux_filt_samprate, 15e3, 500,
firdes.WIN_KAISER, 6.76))
self.band_pass_filter_0_0_0 = filter.fir_filter_fcc(
1,
firdes.complex_band_pass(1, smux_filt_samprate, 18000, 20000, 1000,
firdes.WIN_KAISER, 1))
self.band_pass_filter_0 = filter.fir_filter_fff(
1,
firdes.band_pass(1, smux_filt_samprate, bpf_base, bpf_base + 30e3,
500, firdes.WIN_KAISER, 6.76))
self.audio_sink_0_0_0_0 = audio.sink(32000, "", True)
self.analog_pll_refout_cc_0_0 = analog.pll_refout_cc(
3.14 / 100, 0.152 * 3.14, 0.144 * 3.14)
self.analog_fm_deemph_0_0 = analog.fm_deemph(fs=samp_rate / 8,
tau=75e-6)
self.analog_fm_deemph_0 = analog.fm_deemph(fs=samp_rate / 8, tau=75e-6)
self.analog_const_source_x_0 = analog.sig_source_f(
0, analog.GR_CONST_WAVE, 0, 0, 0)
_CF_sizer = wx.BoxSizer(wx.VERTICAL)
self._CF_text_box = forms.text_box(
parent=self.GetWin(),
sizer=_CF_sizer,
value=self.CF,
callback=self.set_CF,
label="Center Frequency",
converter=forms.float_converter(),
proportion=0,
)
self._CF_slider = forms.slider(
parent=self.GetWin(),
sizer=_CF_sizer,
value=self.CF,
callback=self.set_CF,
minimum=80e6,
maximum=108e6,
num_steps=280,
style=wx.SL_HORIZONTAL,
cast=float,
proportion=1,
)
self.GridAdd(_CF_sizer, 3, 0, 1, 2)
##################################################
# Connections
##################################################
self.connect((self.analog_const_source_x_0, 0),
(self.blocks_float_to_complex_0, 1))
self.connect((self.analog_fm_deemph_0, 0),
(self.audio_sink_0_0_0_0, 0))
self.connect((self.analog_fm_deemph_0_0, 0),
(self.audio_sink_0_0_0_0, 1))
self.connect((self.analog_pll_refout_cc_0_0, 0),
(self.blocks_multiply_xx_1_0, 0))
self.connect((self.analog_pll_refout_cc_0_0, 0),
(self.blocks_multiply_xx_1_0, 1))
self.connect((self.band_pass_filter_0, 0),
(self.blocks_multiply_xx_0, 0))
self.connect((self.band_pass_filter_0_0_0, 0),
(self.analog_pll_refout_cc_0_0, 0))
self.connect((self.baseband_LPF, 0), (self.blocks_add_xx_0, 0))
self.connect((self.baseband_LPF, 0), (self.blocks_sub_xx_0, 0))
self.connect((self.blocks_add_const_vxx_0, 0),
(self.blocks_divide_xx_1, 1))
self.connect((self.blocks_add_xx_0, 0),
(self.blocks_multiply_const_vxx_0, 0))
self.connect((self.blocks_complex_to_imag_0, 0),
(self.band_pass_filter_0, 0))
self.connect((self.blocks_complex_to_imag_0, 0),
(self.band_pass_filter_0_0_0, 0))
self.connect((self.blocks_complex_to_imag_0, 0),
(self.baseband_LPF, 0))
self.connect((self.blocks_complex_to_imag_0, 0),
(self.wxgui_fftsink2_0_0_0, 0))
self.connect((self.blocks_complex_to_mag_0, 0),
(self.blocks_float_to_complex_0, 0))
self.connect((self.blocks_complex_to_real_0, 0),
(self.blocks_multiply_xx_0, 1))
self.connect((self.blocks_delay_2, 0),
(self.blocks_multiply_conjugate_cc_0, 1))
self.connect((self.blocks_divide_xx_1, 0), (self.blocks_delay_2, 0))
self.connect((self.blocks_divide_xx_1, 0), (self.iir_filter_xxx_0, 0))
self.connect((self.blocks_file_source_0_0, 0), (self.rfgain, 0))
self.connect((self.blocks_float_to_complex_0, 0),
(self.blocks_add_const_vxx_0, 0))
self.connect((self.blocks_multiply_conjugate_cc_0, 0),
(self.blocks_complex_to_imag_0, 0))
self.connect((self.blocks_multiply_const_vxx_0, 0),
(self.analog_fm_deemph_0, 0))
self.connect((self.blocks_multiply_const_vxx_0, 0),
(self.wxgui_fftsink2_0, 0))
self.connect((self.blocks_multiply_const_vxx_0, 0),
(self.wxgui_scopesink2_0, 0))
self.connect((self.blocks_multiply_const_vxx_0_0, 0),
(self.analog_fm_deemph_0_0, 0))
self.connect((self.blocks_multiply_const_vxx_0_0, 0),
(self.wxgui_fftsink2_0_1, 0))
self.connect((self.blocks_multiply_const_vxx_0_0, 0),
(self.wxgui_scopesink2_0, 1))
self.connect((self.blocks_multiply_xx_0, 0),
(self.low_pass_filter_1_0, 0))
self.connect((self.blocks_multiply_xx_1_0, 0),
(self.blocks_complex_to_real_0, 0))
self.connect((self.blocks_sub_xx_0, 0),
(self.blocks_multiply_const_vxx_0_0, 0))
self.connect((self.blocks_throttle_0, 0), (self.fir_filter_xxx_0_0, 0))
self.connect((self.blocks_throttle_0, 0), (self.wxgui_fftsink2_0_0, 0))
self.connect((self.blocks_throttle_0, 0),
(self.wxgui_waterfallsink2_0, 0))
self.connect((self.fir_filter_xxx_0_0, 0), (self.low_pass_filter_0, 0))
self.connect((self.iir_filter_xxx_0, 0),
(self.blocks_multiply_conjugate_cc_0, 0))
self.connect((self.low_pass_filter_0, 0),
(self.blocks_complex_to_mag_0, 0))
self.connect((self.low_pass_filter_0, 0), (self.blocks_divide_xx_1, 0))
self.connect((self.low_pass_filter_1_0, 0), (self.blocks_add_xx_0, 1))
self.connect((self.low_pass_filter_1_0, 0), (self.blocks_sub_xx_0, 1))
self.connect((self.rfgain, 0), (self.blocks_throttle_0, 0))
def __init__(self):
gr.top_block.__init__(self, "FM Radio")
Qt.QWidget.__init__(self)
self.setWindowTitle("FM Radio")
try:
self.setWindowIcon(Qt.QIcon.fromTheme('gnuradio-grc'))
except:
pass
self.top_scroll_layout = Qt.QVBoxLayout()
self.setLayout(self.top_scroll_layout)
self.top_scroll = Qt.QScrollArea()
self.top_scroll.setFrameStyle(Qt.QFrame.NoFrame)
self.top_scroll_layout.addWidget(self.top_scroll)
self.top_scroll.setWidgetResizable(True)
self.top_widget = Qt.QWidget()
self.top_scroll.setWidget(self.top_widget)
self.top_layout = Qt.QVBoxLayout(self.top_widget)
self.top_grid_layout = Qt.QGridLayout()
self.top_layout.addLayout(self.top_grid_layout)
self.settings = Qt.QSettings("GNU Radio", "fm_radio")
self.restoreGeometry(self.settings.value("geometry").toByteArray())
##################################################
# Variables
##################################################
self.valid_gains = valid_gains = [0.0, 0.9, 1.4, 2.7, 3.7, 7.7, 8.7, 12.5, 14.4, 15.7, 16.6, 19.7, 20.7, 22.9, 25.4, 28.0, 29.7, 32.8, 33.8, 36.4, 37.2, 38.6, 40.2, 42.1, 43.4, 43.9, 44.5, 48.0, 49.6]
self.samp_rate = samp_rate = 2.048e6
self.baseband_decimation = baseband_decimation = 10
self.rf_gain = rf_gain = len(valid_gains)-1
self.rds_dec = rds_dec = 10
self.pilot_tone = pilot_tone = 19e3
self.baseband_rate = baseband_rate = samp_rate // baseband_decimation
self.stereo_subcarrier = stereo_subcarrier = pilot_tone * 2
self.stereo_button = stereo_button = 0
self.slider_volume = slider_volume = 0
self.sdr_gain = sdr_gain = valid_gains[rf_gain]
self.rds_symbols_per_bit = rds_symbols_per_bit = 2
self.rds_subcarrier = rds_subcarrier = pilot_tone * 3
self.rds_samp_rate = rds_samp_rate = baseband_rate / rds_dec
self.rds_bitrate = rds_bitrate = 1.1875e3
self.rds_bandwidth = rds_bandwidth = 2.83e3
self.fm_station = fm_station = 102.7
self.fm_broadcast_seperation = fm_broadcast_seperation = 0.2
self.fm_broadcast_low = fm_broadcast_low = 87.1
self.fm_broadcast_high = fm_broadcast_high = 107.9
self.audio_rate = audio_rate = 48e3
##################################################
# Blocks
##################################################
self.notebook_top = Qt.QTabWidget()
self.notebook_top_widget_0 = Qt.QWidget()
self.notebook_top_layout_0 = Qt.QBoxLayout(Qt.QBoxLayout.TopToBottom, self.notebook_top_widget_0)
self.notebook_top_grid_layout_0 = Qt.QGridLayout()
self.notebook_top_layout_0.addLayout(self.notebook_top_grid_layout_0)
self.notebook_top.addTab(self.notebook_top_widget_0, "RF Receive")
self.notebook_top_widget_1 = Qt.QWidget()
self.notebook_top_layout_1 = Qt.QBoxLayout(Qt.QBoxLayout.TopToBottom, self.notebook_top_widget_1)
self.notebook_top_grid_layout_1 = Qt.QGridLayout()
self.notebook_top_layout_1.addLayout(self.notebook_top_grid_layout_1)
self.notebook_top.addTab(self.notebook_top_widget_1, "Baseband")
self.notebook_top_widget_2 = Qt.QWidget()
self.notebook_top_layout_2 = Qt.QBoxLayout(Qt.QBoxLayout.TopToBottom, self.notebook_top_widget_2)
self.notebook_top_grid_layout_2 = Qt.QGridLayout()
self.notebook_top_layout_2.addLayout(self.notebook_top_grid_layout_2)
self.notebook_top.addTab(self.notebook_top_widget_2, "Mono Audio")
self.notebook_top_widget_3 = Qt.QWidget()
self.notebook_top_layout_3 = Qt.QBoxLayout(Qt.QBoxLayout.TopToBottom, self.notebook_top_widget_3)
self.notebook_top_grid_layout_3 = Qt.QGridLayout()
self.notebook_top_layout_3.addLayout(self.notebook_top_grid_layout_3)
self.notebook_top.addTab(self.notebook_top_widget_3, "Sub-Carrier Generation")
self.notebook_top_widget_4 = Qt.QWidget()
self.notebook_top_layout_4 = Qt.QBoxLayout(Qt.QBoxLayout.TopToBottom, self.notebook_top_widget_4)
self.notebook_top_grid_layout_4 = Qt.QGridLayout()
self.notebook_top_layout_4.addLayout(self.notebook_top_grid_layout_4)
self.notebook_top.addTab(self.notebook_top_widget_4, "Stereo")
self.notebook_top_widget_5 = Qt.QWidget()
self.notebook_top_layout_5 = Qt.QBoxLayout(Qt.QBoxLayout.TopToBottom, self.notebook_top_widget_5)
self.notebook_top_grid_layout_5 = Qt.QGridLayout()
self.notebook_top_layout_5.addLayout(self.notebook_top_grid_layout_5)
self.notebook_top.addTab(self.notebook_top_widget_5, "RDS")
self.top_grid_layout.addWidget(self.notebook_top, 3, 0, 1, 8)
self._slider_volume_range = Range(0, 11.1, 0.1, 0, 100)
self._slider_volume_win = RangeWidget(self._slider_volume_range, self.set_slider_volume, 'Volume', "counter_slider", float)
self.top_grid_layout.addWidget(self._slider_volume_win, 1, 1, 1, 1)
self.notebook_subcarriers = Qt.QTabWidget()
self.notebook_subcarriers_widget_0 = Qt.QWidget()
self.notebook_subcarriers_layout_0 = Qt.QBoxLayout(Qt.QBoxLayout.TopToBottom, self.notebook_subcarriers_widget_0)
self.notebook_subcarriers_grid_layout_0 = Qt.QGridLayout()
self.notebook_subcarriers_layout_0.addLayout(self.notebook_subcarriers_grid_layout_0)
self.notebook_subcarriers.addTab(self.notebook_subcarriers_widget_0, "Pilot Signal")
self.notebook_subcarriers_widget_1 = Qt.QWidget()
self.notebook_subcarriers_layout_1 = Qt.QBoxLayout(Qt.QBoxLayout.TopToBottom, self.notebook_subcarriers_widget_1)
self.notebook_subcarriers_grid_layout_1 = Qt.QGridLayout()
self.notebook_subcarriers_layout_1.addLayout(self.notebook_subcarriers_grid_layout_1)
self.notebook_subcarriers.addTab(self.notebook_subcarriers_widget_1, "Spectrum")
self.notebook_top_grid_layout_3.addWidget(self.notebook_subcarriers, 0, 0, 1, 1)
self.notebook_rds = Qt.QTabWidget()
self.notebook_rds_widget_0 = Qt.QWidget()
self.notebook_rds_layout_0 = Qt.QBoxLayout(Qt.QBoxLayout.TopToBottom, self.notebook_rds_widget_0)
self.notebook_rds_grid_layout_0 = Qt.QGridLayout()
self.notebook_rds_layout_0.addLayout(self.notebook_rds_grid_layout_0)
self.notebook_rds.addTab(self.notebook_rds_widget_0, "RDS Signal")
self.notebook_rds_widget_1 = Qt.QWidget()
self.notebook_rds_layout_1 = Qt.QBoxLayout(Qt.QBoxLayout.TopToBottom, self.notebook_rds_widget_1)
self.notebook_rds_grid_layout_1 = Qt.QGridLayout()
self.notebook_rds_layout_1.addLayout(self.notebook_rds_grid_layout_1)
self.notebook_rds.addTab(self.notebook_rds_widget_1, "RDS Bitstream")
self.notebook_top_grid_layout_5.addWidget(self.notebook_rds, 0, 0, 1, 1)
self._fm_station_range = Range(fm_broadcast_low, fm_broadcast_high, fm_broadcast_seperation, 102.7, 200)
self._fm_station_win = RangeWidget(self._fm_station_range, self.set_fm_station, "FM Station", "counter_slider", float)
self.top_grid_layout.addWidget(self._fm_station_win, 0, 0, 1, 8)
self._stereo_button_options = (0, 1, )
self._stereo_button_labels = ("Mono", "Stereo", )
self._stereo_button_tool_bar = Qt.QToolBar(self)
self._stereo_button_tool_bar.addWidget(Qt.QLabel("Audio Output"+": "))
self._stereo_button_combo_box = Qt.QComboBox()
self._stereo_button_tool_bar.addWidget(self._stereo_button_combo_box)
for label in self._stereo_button_labels: self._stereo_button_combo_box.addItem(label)
self._stereo_button_callback = lambda i: Qt.QMetaObject.invokeMethod(self._stereo_button_combo_box, "setCurrentIndex", Qt.Q_ARG("int", self._stereo_button_options.index(i)))
self._stereo_button_callback(self.stereo_button)
self._stereo_button_combo_box.currentIndexChanged.connect(
lambda i: self.set_stereo_button(self._stereo_button_options[i]))
self.top_grid_layout.addWidget(self._stereo_button_tool_bar, 1, 2, 1, 1)
self.rtlsdr_source_0 = osmosdr.source( args="numchan=" + str(1) + " " + "" )
self.rtlsdr_source_0.set_sample_rate(samp_rate)
self.rtlsdr_source_0.set_center_freq(fm_station * 1e6, 0)
self.rtlsdr_source_0.set_freq_corr(14, 0)
self.rtlsdr_source_0.set_dc_offset_mode(2, 0)
self.rtlsdr_source_0.set_iq_balance_mode(0, 0)
self.rtlsdr_source_0.set_gain_mode(False, 0)
self.rtlsdr_source_0.set_gain(sdr_gain, 0)
self.rtlsdr_source_0.set_if_gain(0, 0)
self.rtlsdr_source_0.set_bb_gain(0, 0)
self.rtlsdr_source_0.set_antenna("", 0)
self.rtlsdr_source_0.set_bandwidth(0, 0)
self.root_raised_cosine_filter_0 = filter.fir_filter_ccf(1, firdes.root_raised_cosine(
2, rds_samp_rate, rds_bitrate * rds_symbols_per_bit, 0.275, 16))
self._rf_gain_range = Range(0, len(valid_gains)-1, 1, len(valid_gains)-1, 200)
self._rf_gain_win = RangeWidget(self._rf_gain_range, self.set_rf_gain, "RF Gain", "counter_slider", int)
self.top_grid_layout.addWidget(self._rf_gain_win, 1, 0, 1, 1)
self.rds_qt_panel_0 = self.rds_qt_panel_0 = rds.qt_panel()
self.notebook_top_layout_5.addWidget(self.rds_qt_panel_0)
self.rational_resampler_xxx_0_0_0_1 = filter.rational_resampler_fff(
interpolation=int(audio_rate),
decimation=int(baseband_rate),
taps=None,
fractional_bw=None,
)
self.rational_resampler_xxx_0_0_0_0 = filter.rational_resampler_fff(
interpolation=int(audio_rate),
decimation=int(baseband_rate),
taps=None,
fractional_bw=None,
)
self.rational_resampler_xxx_0_0_0 = filter.rational_resampler_fff(
interpolation=int(audio_rate),
decimation=int(baseband_rate),
taps=None,
fractional_bw=None,
)
self.qtgui_time_sink_x_1 = qtgui.time_sink_f(
1024, #size
samp_rate, #samp_rate
"RBDS Bit Stream", #name
2 #number of inputs
)
self.qtgui_time_sink_x_1.set_update_time(0.10)
self.qtgui_time_sink_x_1.set_y_axis(-1.7, 1.7)
self.qtgui_time_sink_x_1.set_y_label("Amplitude", "")
self.qtgui_time_sink_x_1.enable_tags(-1, False)
self.qtgui_time_sink_x_1.set_trigger_mode(qtgui.TRIG_MODE_FREE, qtgui.TRIG_SLOPE_POS, 0.0, 0, 0, "")
self.qtgui_time_sink_x_1.enable_autoscale(False)
self.qtgui_time_sink_x_1.enable_grid(True)
self.qtgui_time_sink_x_1.enable_control_panel(False)
if not True:
self.qtgui_time_sink_x_1.disable_legend()
labels = ["Raw Bit Stream", "Differential Decoded", "", "", "",
"", "", "", "", ""]
widths = [1, 1, 1, 1, 1,
1, 1, 1, 1, 1]
colors = ["blue", "red", "green", "black", "cyan",
"magenta", "yellow", "dark red", "dark green", "blue"]
styles = [1, 1, 1, 1, 1,
1, 1, 1, 1, 1]
markers = [-1, -1, -1, -1, -1,
-1, -1, -1, -1, -1]
alphas = [1.0, 1.0, 1.0, 1.0, 1.0,
1.0, 1.0, 1.0, 1.0, 1.0]
for i in xrange(2):
if len(labels[i]) == 0:
self.qtgui_time_sink_x_1.set_line_label(i, "Data {0}".format(i))
else:
self.qtgui_time_sink_x_1.set_line_label(i, labels[i])
self.qtgui_time_sink_x_1.set_line_width(i, widths[i])
self.qtgui_time_sink_x_1.set_line_color(i, colors[i])
self.qtgui_time_sink_x_1.set_line_style(i, styles[i])
self.qtgui_time_sink_x_1.set_line_marker(i, markers[i])
self.qtgui_time_sink_x_1.set_line_alpha(i, alphas[i])
self._qtgui_time_sink_x_1_win = sip.wrapinstance(self.qtgui_time_sink_x_1.pyqwidget(), Qt.QWidget)
self.notebook_rds_layout_1.addWidget(self._qtgui_time_sink_x_1_win)
self.qtgui_time_sink_x_0 = qtgui.time_sink_f(
1024, #size
baseband_rate, #samp_rate
"19 KHz Pilot Signal", #name
1 #number of inputs
)
self.qtgui_time_sink_x_0.set_update_time(0.10)
self.qtgui_time_sink_x_0.set_y_axis(-1.5, 1.5)
self.qtgui_time_sink_x_0.set_y_label("Amplitude", "counts")
self.qtgui_time_sink_x_0.enable_tags(-1, False)
self.qtgui_time_sink_x_0.set_trigger_mode(qtgui.TRIG_MODE_FREE, qtgui.TRIG_SLOPE_POS, 0.0, 0, 0, "")
self.qtgui_time_sink_x_0.enable_autoscale(False)
self.qtgui_time_sink_x_0.enable_grid(False)
self.qtgui_time_sink_x_0.enable_control_panel(False)
if not False:
self.qtgui_time_sink_x_0.disable_legend()
labels = ["", "", "", "", "",
"", "", "", "", ""]
widths = [1, 1, 1, 1, 1,
1, 1, 1, 1, 1]
colors = ["blue", "red", "green", "black", "cyan",
"magenta", "yellow", "dark red", "dark green", "blue"]
styles = [1, 1, 1, 1, 1,
1, 1, 1, 1, 1]
markers = [-1, -1, -1, -1, -1,
-1, -1, -1, -1, -1]
alphas = [1.0, 1.0, 1.0, 1.0, 1.0,
1.0, 1.0, 1.0, 1.0, 1.0]
for i in xrange(1):
if len(labels[i]) == 0:
self.qtgui_time_sink_x_0.set_line_label(i, "Data {0}".format(i))
else:
self.qtgui_time_sink_x_0.set_line_label(i, labels[i])
self.qtgui_time_sink_x_0.set_line_width(i, widths[i])
self.qtgui_time_sink_x_0.set_line_color(i, colors[i])
self.qtgui_time_sink_x_0.set_line_style(i, styles[i])
self.qtgui_time_sink_x_0.set_line_marker(i, markers[i])
self.qtgui_time_sink_x_0.set_line_alpha(i, alphas[i])
self._qtgui_time_sink_x_0_win = sip.wrapinstance(self.qtgui_time_sink_x_0.pyqwidget(), Qt.QWidget)
self.notebook_subcarriers_grid_layout_0.addWidget(self._qtgui_time_sink_x_0_win, 0, 1, 1, 1)
self.qtgui_freq_sink_x_1 = qtgui.freq_sink_c(
1024, #size
firdes.WIN_BLACKMAN_hARRIS, #wintype
0, #fc
rds_samp_rate, #bw
"RDS Subcarrier Signal (DSB-SSC)", #name
2 #number of inputs
)
self.qtgui_freq_sink_x_1.set_update_time(0.10)
self.qtgui_freq_sink_x_1.set_y_axis(-100, 0)
self.qtgui_freq_sink_x_1.set_trigger_mode(qtgui.TRIG_MODE_FREE, 0.0, 0, "")
self.qtgui_freq_sink_x_1.enable_autoscale(False)
self.qtgui_freq_sink_x_1.enable_grid(False)
self.qtgui_freq_sink_x_1.set_fft_average(1.0)
self.qtgui_freq_sink_x_1.enable_control_panel(False)
if not False:
self.qtgui_freq_sink_x_1.disable_legend()
if complex == type(float()):
self.qtgui_freq_sink_x_1.set_plot_pos_half(not True)
labels = ["", "", "", "", "",
"", "", "", "", ""]
widths = [1, 1, 1, 1, 1,
1, 1, 1, 1, 1]
colors = ["blue", "red", "green", "black", "cyan",
"magenta", "yellow", "dark red", "dark green", "dark blue"]
alphas = [1.0, 1.0, 1.0, 1.0, 1.0,
1.0, 1.0, 1.0, 1.0, 1.0]
for i in xrange(2):
if len(labels[i]) == 0:
self.qtgui_freq_sink_x_1.set_line_label(i, "Data {0}".format(i))
else:
self.qtgui_freq_sink_x_1.set_line_label(i, labels[i])
self.qtgui_freq_sink_x_1.set_line_width(i, widths[i])
self.qtgui_freq_sink_x_1.set_line_color(i, colors[i])
self.qtgui_freq_sink_x_1.set_line_alpha(i, alphas[i])
self._qtgui_freq_sink_x_1_win = sip.wrapinstance(self.qtgui_freq_sink_x_1.pyqwidget(), Qt.QWidget)
self.notebook_rds_grid_layout_0 .addWidget(self._qtgui_freq_sink_x_1_win, 0, 0, 1, 1)
self.qtgui_freq_sink_x_0_1_0_1_0 = qtgui.freq_sink_f(
1024, #size
firdes.WIN_BLACKMAN_hARRIS, #wintype
0, #fc
audio_rate, #bw
"Stereo Audio Left", #name
2 #number of inputs
)
self.qtgui_freq_sink_x_0_1_0_1_0.set_update_time(0.10)
self.qtgui_freq_sink_x_0_1_0_1_0.set_y_axis(-100, -30)
self.qtgui_freq_sink_x_0_1_0_1_0.set_trigger_mode(qtgui.TRIG_MODE_FREE, 0.0, 0, "")
self.qtgui_freq_sink_x_0_1_0_1_0.enable_autoscale(False)
self.qtgui_freq_sink_x_0_1_0_1_0.enable_grid(False)
self.qtgui_freq_sink_x_0_1_0_1_0.set_fft_average(0.1)
self.qtgui_freq_sink_x_0_1_0_1_0.enable_control_panel(False)
if not False:
self.qtgui_freq_sink_x_0_1_0_1_0.disable_legend()
if float == type(float()):
self.qtgui_freq_sink_x_0_1_0_1_0.set_plot_pos_half(not False)
labels = ["Stereo Left", "Stereo Right", "", "", "",
"", "", "", "", ""]
widths = [1, 1, 1, 1, 1,
1, 1, 1, 1, 1]
colors = ["blue", "red", "green", "black", "cyan",
"magenta", "yellow", "dark red", "dark green", "dark blue"]
alphas = [1.0, 1.0, 1.0, 1.0, 1.0,
1.0, 1.0, 1.0, 1.0, 1.0]
for i in xrange(2):
if len(labels[i]) == 0:
self.qtgui_freq_sink_x_0_1_0_1_0.set_line_label(i, "Data {0}".format(i))
else:
self.qtgui_freq_sink_x_0_1_0_1_0.set_line_label(i, labels[i])
self.qtgui_freq_sink_x_0_1_0_1_0.set_line_width(i, widths[i])
self.qtgui_freq_sink_x_0_1_0_1_0.set_line_color(i, colors[i])
self.qtgui_freq_sink_x_0_1_0_1_0.set_line_alpha(i, alphas[i])
self._qtgui_freq_sink_x_0_1_0_1_0_win = sip.wrapinstance(self.qtgui_freq_sink_x_0_1_0_1_0.pyqwidget(), Qt.QWidget)
self.notebook_top_grid_layout_4.addWidget(self._qtgui_freq_sink_x_0_1_0_1_0_win, 0, 0, 1, 1)
self.qtgui_freq_sink_x_0_1_0_1 = qtgui.freq_sink_f(
1024, #size
firdes.WIN_BLACKMAN_hARRIS, #wintype
0, #fc
audio_rate, #bw
"Stereo Audio Right", #name
2 #number of inputs
)
self.qtgui_freq_sink_x_0_1_0_1.set_update_time(0.10)
self.qtgui_freq_sink_x_0_1_0_1.set_y_axis(-100, -30)
self.qtgui_freq_sink_x_0_1_0_1.set_trigger_mode(qtgui.TRIG_MODE_FREE, 0.0, 0, "")
self.qtgui_freq_sink_x_0_1_0_1.enable_autoscale(False)
self.qtgui_freq_sink_x_0_1_0_1.enable_grid(False)
self.qtgui_freq_sink_x_0_1_0_1.set_fft_average(0.1)
self.qtgui_freq_sink_x_0_1_0_1.enable_control_panel(False)
if not False:
self.qtgui_freq_sink_x_0_1_0_1.disable_legend()
if float == type(float()):
self.qtgui_freq_sink_x_0_1_0_1.set_plot_pos_half(not False)
labels = ["Stereo Right", "Stereo Right", "", "", "",
"", "", "", "", ""]
widths = [1, 1, 1, 1, 1,
1, 1, 1, 1, 1]
colors = ["blue", "red", "green", "black", "cyan",
"magenta", "yellow", "dark red", "dark green", "dark blue"]
alphas = [1.0, 1.0, 1.0, 1.0, 1.0,
1.0, 1.0, 1.0, 1.0, 1.0]
for i in xrange(2):
if len(labels[i]) == 0:
self.qtgui_freq_sink_x_0_1_0_1.set_line_label(i, "Data {0}".format(i))
else:
self.qtgui_freq_sink_x_0_1_0_1.set_line_label(i, labels[i])
self.qtgui_freq_sink_x_0_1_0_1.set_line_width(i, widths[i])
self.qtgui_freq_sink_x_0_1_0_1.set_line_color(i, colors[i])
self.qtgui_freq_sink_x_0_1_0_1.set_line_alpha(i, alphas[i])
self._qtgui_freq_sink_x_0_1_0_1_win = sip.wrapinstance(self.qtgui_freq_sink_x_0_1_0_1.pyqwidget(), Qt.QWidget)
self.notebook_top_grid_layout_4.addWidget(self._qtgui_freq_sink_x_0_1_0_1_win, 0, 1, 1, 1)
self.qtgui_freq_sink_x_0_1_0_0 = qtgui.freq_sink_f(
1024, #size
firdes.WIN_BLACKMAN_hARRIS, #wintype
0, #fc
baseband_rate, #bw
"Pilot & Stereo Carrier", #name
2 #number of inputs
)
self.qtgui_freq_sink_x_0_1_0_0.set_update_time(0.10)
self.qtgui_freq_sink_x_0_1_0_0.set_y_axis(-80, 0)
self.qtgui_freq_sink_x_0_1_0_0.set_trigger_mode(qtgui.TRIG_MODE_FREE, 0.0, 0, "")
self.qtgui_freq_sink_x_0_1_0_0.enable_autoscale(False)
self.qtgui_freq_sink_x_0_1_0_0.enable_grid(False)
self.qtgui_freq_sink_x_0_1_0_0.set_fft_average(0.1)
self.qtgui_freq_sink_x_0_1_0_0.enable_control_panel(False)
if not True:
self.qtgui_freq_sink_x_0_1_0_0.disable_legend()
if float == type(float()):
self.qtgui_freq_sink_x_0_1_0_0.set_plot_pos_half(not False)
labels = ["Pilot Tone", "Stereo Carrier", "RDS Carrier", "", "",
"", "", "", "", ""]
widths = [1, 1, 1, 1, 1,
1, 1, 1, 1, 1]
colors = ["blue", "red", "green", "black", "cyan",
"magenta", "yellow", "dark red", "dark green", "dark blue"]
alphas = [1.0, 1.0, 1.0, 1.0, 1.0,
1.0, 1.0, 1.0, 1.0, 1.0]
for i in xrange(2):
if len(labels[i]) == 0:
self.qtgui_freq_sink_x_0_1_0_0.set_line_label(i, "Data {0}".format(i))
else:
self.qtgui_freq_sink_x_0_1_0_0.set_line_label(i, labels[i])
self.qtgui_freq_sink_x_0_1_0_0.set_line_width(i, widths[i])
self.qtgui_freq_sink_x_0_1_0_0.set_line_color(i, colors[i])
self.qtgui_freq_sink_x_0_1_0_0.set_line_alpha(i, alphas[i])
self._qtgui_freq_sink_x_0_1_0_0_win = sip.wrapinstance(self.qtgui_freq_sink_x_0_1_0_0.pyqwidget(), Qt.QWidget)
self.notebook_subcarriers_grid_layout_1.addWidget(self._qtgui_freq_sink_x_0_1_0_0_win, 0, 0, 1, 1)
self.qtgui_freq_sink_x_0_0_0 = qtgui.freq_sink_f(
1024, #size
firdes.WIN_BLACKMAN_hARRIS, #wintype
0, #fc
audio_rate, #bw
"Mono Audio (L+R)", #name
2 #number of inputs
)
self.qtgui_freq_sink_x_0_0_0.set_update_time(0.10)
self.qtgui_freq_sink_x_0_0_0.set_y_axis(-100, -30)
self.qtgui_freq_sink_x_0_0_0.set_trigger_mode(qtgui.TRIG_MODE_FREE, 0.0, 0, "")
self.qtgui_freq_sink_x_0_0_0.enable_autoscale(False)
self.qtgui_freq_sink_x_0_0_0.enable_grid(False)
self.qtgui_freq_sink_x_0_0_0.set_fft_average(0.2)
self.qtgui_freq_sink_x_0_0_0.enable_control_panel(False)
if not False:
self.qtgui_freq_sink_x_0_0_0.disable_legend()
if float == type(float()):
self.qtgui_freq_sink_x_0_0_0.set_plot_pos_half(not False)
labels = ["", "", "", "", "",
"", "", "", "", ""]
widths = [1, 1, 1, 1, 1,
1, 1, 1, 1, 1]
colors = ["blue", "red", "green", "black", "cyan",
"magenta", "yellow", "dark red", "dark green", "dark blue"]
alphas = [1.0, 1.0, 1.0, 1.0, 1.0,
1.0, 1.0, 1.0, 1.0, 1.0]
for i in xrange(2):
if len(labels[i]) == 0:
self.qtgui_freq_sink_x_0_0_0.set_line_label(i, "Data {0}".format(i))
else:
self.qtgui_freq_sink_x_0_0_0.set_line_label(i, labels[i])
self.qtgui_freq_sink_x_0_0_0.set_line_width(i, widths[i])
self.qtgui_freq_sink_x_0_0_0.set_line_color(i, colors[i])
self.qtgui_freq_sink_x_0_0_0.set_line_alpha(i, alphas[i])
self._qtgui_freq_sink_x_0_0_0_win = sip.wrapinstance(self.qtgui_freq_sink_x_0_0_0.pyqwidget(), Qt.QWidget)
self.notebook_top_grid_layout_2.addWidget(self._qtgui_freq_sink_x_0_0_0_win, 1, 0, 1, 5)
self.qtgui_freq_sink_x_0_0 = qtgui.freq_sink_f(
1024, #size
firdes.WIN_BLACKMAN_hARRIS, #wintype
0, #fc
baseband_rate, #bw
"FM Baseband", #name
1 #number of inputs
)
self.qtgui_freq_sink_x_0_0.set_update_time(0.10)
self.qtgui_freq_sink_x_0_0.set_y_axis(-100, -30)
self.qtgui_freq_sink_x_0_0.set_trigger_mode(qtgui.TRIG_MODE_FREE, 0.0, 0, "")
self.qtgui_freq_sink_x_0_0.enable_autoscale(False)
self.qtgui_freq_sink_x_0_0.enable_grid(False)
self.qtgui_freq_sink_x_0_0.set_fft_average(0.1)
self.qtgui_freq_sink_x_0_0.enable_control_panel(False)
if not False:
self.qtgui_freq_sink_x_0_0.disable_legend()
if float == type(float()):
self.qtgui_freq_sink_x_0_0.set_plot_pos_half(not False)
labels = ["", "", "", "", "",
"", "", "", "", ""]
widths = [1, 1, 1, 1, 1,
1, 1, 1, 1, 1]
colors = ["blue", "red", "green", "black", "cyan",
"magenta", "yellow", "dark red", "dark green", "dark blue"]
alphas = [1.0, 1.0, 1.0, 1.0, 1.0,
1.0, 1.0, 1.0, 1.0, 1.0]
for i in xrange(1):
if len(labels[i]) == 0:
self.qtgui_freq_sink_x_0_0.set_line_label(i, "Data {0}".format(i))
else:
self.qtgui_freq_sink_x_0_0.set_line_label(i, labels[i])
self.qtgui_freq_sink_x_0_0.set_line_width(i, widths[i])
self.qtgui_freq_sink_x_0_0.set_line_color(i, colors[i])
self.qtgui_freq_sink_x_0_0.set_line_alpha(i, alphas[i])
self._qtgui_freq_sink_x_0_0_win = sip.wrapinstance(self.qtgui_freq_sink_x_0_0.pyqwidget(), Qt.QWidget)
self.notebook_top_grid_layout_1.addWidget(self._qtgui_freq_sink_x_0_0_win, 0, 1, 1, 1)
self.qtgui_freq_sink_x_0 = qtgui.freq_sink_c(
1024, #size
firdes.WIN_BLACKMAN_hARRIS, #wintype
fm_station * 1e6, #fc
samp_rate, #bw
"RF Frequency", #name
1 #number of inputs
)
self.qtgui_freq_sink_x_0.set_update_time(0.10)
self.qtgui_freq_sink_x_0.set_y_axis(-90, 0)
self.qtgui_freq_sink_x_0.set_trigger_mode(qtgui.TRIG_MODE_FREE, 0.0, 0, "")
self.qtgui_freq_sink_x_0.enable_autoscale(False)
self.qtgui_freq_sink_x_0.enable_grid(False)
self.qtgui_freq_sink_x_0.set_fft_average(0.1)
self.qtgui_freq_sink_x_0.enable_control_panel(False)
if not False:
self.qtgui_freq_sink_x_0.disable_legend()
if complex == type(float()):
self.qtgui_freq_sink_x_0.set_plot_pos_half(not True)
labels = ["", "", "", "", "",
"", "", "", "", ""]
widths = [1, 1, 1, 1, 1,
1, 1, 1, 1, 1]
colors = ["blue", "red", "green", "black", "cyan",
"magenta", "yellow", "dark red", "dark green", "dark blue"]
alphas = [1.0, 1.0, 1.0, 1.0, 1.0,
1.0, 1.0, 1.0, 1.0, 1.0]
for i in xrange(1):
if len(labels[i]) == 0:
self.qtgui_freq_sink_x_0.set_line_label(i, "Data {0}".format(i))
else:
self.qtgui_freq_sink_x_0.set_line_label(i, labels[i])
self.qtgui_freq_sink_x_0.set_line_width(i, widths[i])
self.qtgui_freq_sink_x_0.set_line_color(i, colors[i])
self.qtgui_freq_sink_x_0.set_line_alpha(i, alphas[i])
self._qtgui_freq_sink_x_0_win = sip.wrapinstance(self.qtgui_freq_sink_x_0.pyqwidget(), Qt.QWidget)
self.notebook_top_grid_layout_0.addWidget(self._qtgui_freq_sink_x_0_win, 0, 1, 1, 1)
self.qtgui_const_sink_x_0 = qtgui.const_sink_c(
1024, #size
"RDS BPSK Constellation", #name
1 #number of inputs
)
self.qtgui_const_sink_x_0.set_update_time(0.10)
self.qtgui_const_sink_x_0.set_y_axis(-1.6, 1.6)
self.qtgui_const_sink_x_0.set_x_axis(-1.6, 1.6)
self.qtgui_const_sink_x_0.set_trigger_mode(qtgui.TRIG_MODE_FREE, qtgui.TRIG_SLOPE_POS, 0.0, 0, "")
self.qtgui_const_sink_x_0.enable_autoscale(False)
self.qtgui_const_sink_x_0.enable_grid(True)
if not False:
self.qtgui_const_sink_x_0.disable_legend()
labels = ["RBDS BPSK", "", "", "", "",
"", "", "", "", ""]
widths = [1, 1, 1, 1, 1,
1, 1, 1, 1, 1]
colors = ["blue", "red", "red", "red", "red",
"red", "red", "red", "red", "red"]
styles = [0, 0, 0, 0, 0,
0, 0, 0, 0, 0]
markers = [0, 0, 0, 0, 0,
0, 0, 0, 0, 0]
alphas = [1.0, 1.0, 1.0, 1.0, 1.0,
1.0, 1.0, 1.0, 1.0, 1.0]
for i in xrange(1):
if len(labels[i]) == 0:
self.qtgui_const_sink_x_0.set_line_label(i, "Data {0}".format(i))
else:
self.qtgui_const_sink_x_0.set_line_label(i, labels[i])
self.qtgui_const_sink_x_0.set_line_width(i, widths[i])
self.qtgui_const_sink_x_0.set_line_color(i, colors[i])
self.qtgui_const_sink_x_0.set_line_style(i, styles[i])
self.qtgui_const_sink_x_0.set_line_marker(i, markers[i])
self.qtgui_const_sink_x_0.set_line_alpha(i, alphas[i])
self._qtgui_const_sink_x_0_win = sip.wrapinstance(self.qtgui_const_sink_x_0.pyqwidget(), Qt.QWidget)
self.notebook_rds_grid_layout_0.addWidget(self._qtgui_const_sink_x_0_win, 0, 1, 1, 1)
self.low_pass_filter_4 = filter.fir_filter_fff(1, firdes.low_pass(
1, baseband_rate, 60e3, 1e3, firdes.WIN_HAMMING, 6.76))
self.low_pass_filter_2 = filter.fir_filter_fff(1, firdes.low_pass(
1, baseband_rate, 16e3, 1e3, firdes.WIN_HAMMING, 6.76))
self.low_pass_filter_1 = filter.fir_filter_fff(1, firdes.low_pass(
10, baseband_rate, 15e3, 3e3, firdes.WIN_HAMMING, 6.76))
self.low_pass_filter_0 = filter.fir_filter_ccf(baseband_decimation, firdes.low_pass(
1, samp_rate, 75e3, 1e3, firdes.WIN_HAMMING, 6.76))
self.gr_rds_parser_0 = rds.parser(False, False, 1)
self.gr_rds_decoder_0 = rds.decoder(False, False)
self.freq_xlating_fir_filter_xxx_1 = filter.freq_xlating_fir_filter_fcc(rds_dec, (firdes.low_pass(2500,baseband_rate,rds_bandwidth,1e3,firdes.WIN_HAMMING)), rds_subcarrier, baseband_rate)
self.digital_mpsk_receiver_cc_0 = digital.mpsk_receiver_cc(2, 0, (2 * cmath.pi) / 100, -0.00006, 0.00006, 0.5, 0.05, rds_samp_rate / (rds_bitrate * 2), ((rds_samp_rate / (rds_bitrate * 2)) ** 2)/ 4, 0.005)
self.digital_diff_decoder_bb_0 = digital.diff_decoder_bb(2)
self.digital_binary_slicer_fb_0 = digital.binary_slicer_fb()
self.blocks_uchar_to_float_0_0 = blocks.uchar_to_float()
self.blocks_uchar_to_float_0 = blocks.uchar_to_float()
self.blocks_sub_xx_0 = blocks.sub_ff(1)
self.blocks_multiply_xx_1 = blocks.multiply_vff(1)
self.blocks_multiply_xx_0 = blocks.multiply_vff(1)
self.blocks_multiply_const_vxx_1_0_1_0_1 = blocks.multiply_const_vff((11, ))
self.blocks_multiply_const_vxx_1_0_1_0_0 = blocks.multiply_const_vff((11, ))
self.blocks_multiply_const_vxx_1_0_1_0 = blocks.multiply_const_vff((11, ))
self.blocks_multiply_const_vxx_1_0_1 = blocks.multiply_const_vff((slider_volume, ))
self.blocks_multiply_const_vxx_1_0_0 = blocks.multiply_const_vff((slider_volume, ))
self.blocks_multiply_const_vxx_1_0 = blocks.multiply_const_vff((slider_volume, ))
self.blocks_keep_one_in_n_0 = blocks.keep_one_in_n(gr.sizeof_char*1, 2)
self.blocks_complex_to_real_1 = blocks.complex_to_real(1)
self.blocks_complex_to_real_0 = blocks.complex_to_real(1)
self.blocks_add_xx_0 = blocks.add_vff(1)
self.blocks_add_const_vxx_0_0 = blocks.add_const_vff((0.5, ))
self.blocks_add_const_vxx_0 = blocks.add_const_vff((-1.5, ))
self.blks2_selector_0_0 = grc_blks2.selector(
item_size=gr.sizeof_float*1,
num_inputs=2,
num_outputs=1,
input_index=0,
output_index=0,
)
self.blks2_selector_0 = grc_blks2.selector(
item_size=gr.sizeof_float*1,
num_inputs=2,
num_outputs=1,
input_index=0,
output_index=0,
)
self.band_pass_filter_1 = filter.fir_filter_fff(1, firdes.band_pass(
1, baseband_rate, stereo_subcarrier - 0.5e3, stereo_subcarrier + 0.5e3, 0.5e3, firdes.WIN_HAMMING, 6.76))
self.band_pass_filter_0_0 = filter.fir_filter_fff(1, firdes.band_pass(
1, baseband_rate, 23e3, 53e3, 1e3, firdes.WIN_HAMMING, 6.76))
self.band_pass_filter_0 = filter.fir_filter_fcc(1, firdes.complex_band_pass(
1, baseband_rate, pilot_tone - 0.5e3, pilot_tone+0.5e3, 1e3, firdes.WIN_HAMMING, 6.76))
self.audio_sink_0 = audio.sink(48000, "", True)
self.analog_wfm_rcv_0 = analog.wfm_rcv(
quad_rate=baseband_rate,
audio_decimation=1,
)
self.analog_pll_refout_cc_0 = analog.pll_refout_cc(1e-3, 2 * cmath.pi * (19000+200) / baseband_rate, 2 * cmath.pi * (19000-200) / baseband_rate)
self.analog_fm_deemph_0_0_0_1 = analog.fm_deemph(fs=baseband_rate, tau=75e-6)
self.analog_fm_deemph_0_0_0_0 = analog.fm_deemph(fs=baseband_rate, tau=75e-6)
self.analog_fm_deemph_0_0_0 = analog.fm_deemph(fs=baseband_rate, tau=75e-6)
##################################################
# Connections
##################################################
self.msg_connect((self.gr_rds_decoder_0, 'out'), (self.gr_rds_parser_0, 'in'))
self.msg_connect((self.gr_rds_parser_0, 'out'), (self.rds_qt_panel_0, 'in'))
self.connect((self.analog_fm_deemph_0_0_0, 0), (self.rational_resampler_xxx_0_0_0, 0))
self.connect((self.analog_fm_deemph_0_0_0_0, 0), (self.rational_resampler_xxx_0_0_0_0, 0))
self.connect((self.analog_fm_deemph_0_0_0_1, 0), (self.rational_resampler_xxx_0_0_0_1, 0))
self.connect((self.analog_pll_refout_cc_0, 0), (self.blocks_complex_to_real_1, 0))
self.connect((self.analog_wfm_rcv_0, 0), (self.low_pass_filter_4, 0))
self.connect((self.band_pass_filter_0, 0), (self.analog_pll_refout_cc_0, 0))
self.connect((self.band_pass_filter_0_0, 0), (self.blocks_multiply_xx_1, 1))
self.connect((self.band_pass_filter_1, 0), (self.blocks_multiply_xx_1, 0))
self.connect((self.band_pass_filter_1, 0), (self.qtgui_freq_sink_x_0_1_0_0, 1))
self.connect((self.blks2_selector_0, 0), (self.audio_sink_0, 0))
self.connect((self.blks2_selector_0_0, 0), (self.audio_sink_0, 1))
self.connect((self.blocks_add_const_vxx_0, 0), (self.qtgui_time_sink_x_1, 1))
self.connect((self.blocks_add_const_vxx_0_0, 0), (self.qtgui_time_sink_x_1, 0))
self.connect((self.blocks_add_xx_0, 0), (self.analog_fm_deemph_0_0_0_0, 0))
self.connect((self.blocks_complex_to_real_0, 0), (self.digital_binary_slicer_fb_0, 0))
self.connect((self.blocks_complex_to_real_1, 0), (self.blocks_multiply_xx_0, 0))
self.connect((self.blocks_complex_to_real_1, 0), (self.blocks_multiply_xx_0, 1))
self.connect((self.blocks_complex_to_real_1, 0), (self.qtgui_freq_sink_x_0_1_0_0, 0))
self.connect((self.blocks_complex_to_real_1, 0), (self.qtgui_time_sink_x_0, 0))
self.connect((self.blocks_keep_one_in_n_0, 0), (self.blocks_uchar_to_float_0, 0))
self.connect((self.blocks_keep_one_in_n_0, 0), (self.digital_diff_decoder_bb_0, 0))
self.connect((self.blocks_multiply_const_vxx_1_0, 0), (self.blks2_selector_0, 1))
self.connect((self.blocks_multiply_const_vxx_1_0, 0), (self.qtgui_freq_sink_x_0_1_0_1, 1))
self.connect((self.blocks_multiply_const_vxx_1_0_0, 0), (self.blks2_selector_0_0, 1))
self.connect((self.blocks_multiply_const_vxx_1_0_0, 0), (self.qtgui_freq_sink_x_0_1_0_1_0, 1))
self.connect((self.blocks_multiply_const_vxx_1_0_1, 0), (self.blks2_selector_0, 0))
self.connect((self.blocks_multiply_const_vxx_1_0_1, 0), (self.blks2_selector_0_0, 0))
self.connect((self.blocks_multiply_const_vxx_1_0_1, 0), (self.qtgui_freq_sink_x_0_0_0, 1))
self.connect((self.blocks_multiply_const_vxx_1_0_1_0, 0), (self.qtgui_freq_sink_x_0_0_0, 0))
self.connect((self.blocks_multiply_const_vxx_1_0_1_0_0, 0), (self.qtgui_freq_sink_x_0_1_0_1, 0))
self.connect((self.blocks_multiply_const_vxx_1_0_1_0_1, 0), (self.qtgui_freq_sink_x_0_1_0_1_0, 0))
self.connect((self.blocks_multiply_xx_0, 0), (self.band_pass_filter_1, 0))
self.connect((self.blocks_multiply_xx_1, 0), (self.low_pass_filter_2, 0))
self.connect((self.blocks_sub_xx_0, 0), (self.analog_fm_deemph_0_0_0, 0))
self.connect((self.blocks_uchar_to_float_0, 0), (self.blocks_add_const_vxx_0_0, 0))
self.connect((self.blocks_uchar_to_float_0_0, 0), (self.blocks_add_const_vxx_0, 0))
self.connect((self.digital_binary_slicer_fb_0, 0), (self.blocks_keep_one_in_n_0, 0))
self.connect((self.digital_diff_decoder_bb_0, 0), (self.blocks_uchar_to_float_0_0, 0))
self.connect((self.digital_diff_decoder_bb_0, 0), (self.gr_rds_decoder_0, 0))
self.connect((self.digital_mpsk_receiver_cc_0, 0), (self.blocks_complex_to_real_0, 0))
self.connect((self.digital_mpsk_receiver_cc_0, 0), (self.qtgui_const_sink_x_0, 0))
self.connect((self.freq_xlating_fir_filter_xxx_1, 0), (self.qtgui_freq_sink_x_1, 0))
self.connect((self.freq_xlating_fir_filter_xxx_1, 0), (self.root_raised_cosine_filter_0, 0))
self.connect((self.low_pass_filter_0, 0), (self.analog_wfm_rcv_0, 0))
self.connect((self.low_pass_filter_1, 0), (self.analog_fm_deemph_0_0_0_1, 0))
self.connect((self.low_pass_filter_1, 0), (self.blocks_add_xx_0, 0))
self.connect((self.low_pass_filter_1, 0), (self.blocks_sub_xx_0, 0))
self.connect((self.low_pass_filter_2, 0), (self.blocks_add_xx_0, 1))
self.connect((self.low_pass_filter_2, 0), (self.blocks_sub_xx_0, 1))
self.connect((self.low_pass_filter_4, 0), (self.band_pass_filter_0, 0))
self.connect((self.low_pass_filter_4, 0), (self.band_pass_filter_0_0, 0))
self.connect((self.low_pass_filter_4, 0), (self.freq_xlating_fir_filter_xxx_1, 0))
self.connect((self.low_pass_filter_4, 0), (self.low_pass_filter_1, 0))
self.connect((self.low_pass_filter_4, 0), (self.qtgui_freq_sink_x_0_0, 0))
self.connect((self.rational_resampler_xxx_0_0_0, 0), (self.blocks_multiply_const_vxx_1_0, 0))
self.connect((self.rational_resampler_xxx_0_0_0, 0), (self.blocks_multiply_const_vxx_1_0_1_0_0, 0))
self.connect((self.rational_resampler_xxx_0_0_0_0, 0), (self.blocks_multiply_const_vxx_1_0_0, 0))
self.connect((self.rational_resampler_xxx_0_0_0_0, 0), (self.blocks_multiply_const_vxx_1_0_1_0_1, 0))
self.connect((self.rational_resampler_xxx_0_0_0_1, 0), (self.blocks_multiply_const_vxx_1_0_1, 0))
self.connect((self.rational_resampler_xxx_0_0_0_1, 0), (self.blocks_multiply_const_vxx_1_0_1_0, 0))
self.connect((self.root_raised_cosine_filter_0, 0), (self.digital_mpsk_receiver_cc_0, 0))
self.connect((self.root_raised_cosine_filter_0, 0), (self.qtgui_freq_sink_x_1, 1))
self.connect((self.rtlsdr_source_0, 0), (self.low_pass_filter_0, 0))
self.connect((self.rtlsdr_source_0, 0), (self.qtgui_freq_sink_x_0, 0))
def __init__(self, dest, debug, config, msgq_id, msg_q):
gr.hier_block2.__init__(
self,
"op25_nbfm_c",
gr.io_signature(1, 1, gr.sizeof_gr_complex), # Input signature
gr.io_signature(0, 0, 0)) # Output signature
self.debug = debug
self.config = config
self.msgq_id = msgq_id
sys.stderr.write("%s [%d] Enabling nbfm analog audio\n" %
(log_ts.get(), msgq_id))
# load config
input_rate = int(from_dict(config, 'if_rate', 24000))
deviation = int(from_dict(config, 'nbfm_deviation', 4000))
squelch = int(from_dict(config, 'nbfm_squelch_threshold', -60))
gain = float(from_dict(config, 'nbfm_squelch_gain', 0.0015))
subchannel_enabled = bool(
from_dict(config, 'nbfm_enable_subchannel', False))
raw_in = str(from_dict(config, 'nbfm_raw_input', ""))
raw_out = str(from_dict(config, 'nbfm_raw_output', ""))
# 'switch' enables the analog decoding to be turned on/off
self.switch = blocks.copy(gr.sizeof_gr_complex)
self.switch.set_enabled(False)
# power squelch
self.squelch = analog.simple_squelch_cc(squelch, gain)
# quadrature demod
fm_demod_gain = input_rate / (4 * pi * deviation)
self.fm_demod = analog.quadrature_demod_cf(fm_demod_gain)
# fm deemphasis
self.deemph = analog.fm_deemph(input_rate, 0.00075)
# decimate and filter
audio_decim = input_rate // _PCM_RATE
lpf_taps = filter.firdes.low_pass(
1.0, # gain
input_rate, # sampling rate
3000.0, # Audio high cutoff (remove aliasing)
200.0, # transition
filter.firdes.WIN_HAMMING) # filter type
hpf_taps = filter.firdes.high_pass(
1.0, # gain
_PCM_RATE, # sampling rate
200.0, # Audio low cutoff (remove sub-audio signaling)
10.0, # Sharp transition band
filter.firdes.WIN_HAMMING) # filter type
self.lp_filter = filter.fir_filter_fff(audio_decim, lpf_taps)
self.hp_filter = filter.fir_filter_fff(1, hpf_taps)
# analog_udp block converts +/-1.0 float samples to S16LE PCM and sends over UDP
self.analog_udp = op25_repeater.analog_udp(dest, debug, msgq_id, msg_q)
# raw playback
if raw_in != "":
self.null_sink = blocks.null_sink(gr.sizeof_gr_complex)
self.connect(self, self.null_sink) # dispose of regular input
self.raw_file = blocks.file_source(gr.sizeof_float, raw_in, False)
self.throttle = blocks.throttle(gr.sizeof_float, input_rate)
self.throttle.set_max_noutput_items(input_rate / 50)
self.fm_demod = self.throttle # and replace fm_demod with throttled file source
self.connect(self.raw_file, self.throttle)
sys.stderr.write("%s [%d] Reading nbfm demod from file: %s\n" %
(log_ts.get(), msgq_id, raw_in))
else:
self.connect(self, self.switch, self.squelch, self.fm_demod)
self.connect(self.fm_demod, self.deemph, self.lp_filter,
self.hp_filter, self.analog_udp)
# raw capture
if raw_in == "" and raw_out != "":
sys.stderr.write("%s [%d] Saving nbfm demod to file: %s\n" %
(log_ts.get(), msgq_id, raw_out))
self.raw_sink = blocks.file_sink(gr.sizeof_float, raw_out)
self.connect(self.fm_demod, self.raw_sink)
# subchannel signaling
if subchannel_enabled:
self.subchannel_decimation = 25
self.subchannel_gain = 10
self.subchannelfilttaps = filter.firdes.low_pass(
self.subchannel_gain, input_rate, 200, 40,
filter.firdes.WIN_HANN)
self.subchannelfilt = filter.fir_filter_fff(
self.subchannel_decimation, self.subchannelfilttaps)
self.subchannel_syms_per_sec = 150
self.subchannel_samples_per_symbol = (
input_rate /
self.subchannel_decimation) / self.subchannel_syms_per_sec
sys.stderr.write(
"%s [%d] Subchannel samples per symbol: %f\n" %
(log_ts.get(), msgq_id, self.subchannel_samples_per_symbol))
self.subchannel_clockrec = digital.clock_recovery_mm_ff(
self.subchannel_samples_per_symbol, 0.25 * 0.01 * 0.01, 0.5,
0.01, 0.3)
self.subchannel_slicer = digital.binary_slicer_fb()
#self.subchannel_correlator = digital.correlate_access_code_bb("01000", 0)
self.subchannel_framer = op25_repeater.frame_assembler(
"subchannel", debug, msgq_id, msg_q)
self.connect(self.fm_demod, self.subchannelfilt,
self.subchannel_clockrec, self.subchannel_slicer,
self.subchannel_framer)
def __init__(self):
gr.top_block.__init__(self,
"Stereo FM receiver and RDS Decoder",
catch_exceptions=True)
Qt.QWidget.__init__(self)
self.setWindowTitle("Stereo FM receiver and RDS Decoder")
qtgui.util.check_set_qss()
try:
self.setWindowIcon(Qt.QIcon.fromTheme('gnuradio-grc'))
except:
pass
self.top_scroll_layout = Qt.QVBoxLayout()
self.setLayout(self.top_scroll_layout)
self.top_scroll = Qt.QScrollArea()
self.top_scroll.setFrameStyle(Qt.QFrame.NoFrame)
self.top_scroll_layout.addWidget(self.top_scroll)
self.top_scroll.setWidgetResizable(True)
self.top_widget = Qt.QWidget()
self.top_scroll.setWidget(self.top_widget)
self.top_layout = Qt.QVBoxLayout(self.top_widget)
self.top_grid_layout = Qt.QGridLayout()
self.top_layout.addLayout(self.top_grid_layout)
self.settings = Qt.QSettings("GNU Radio", "rds_rx")
try:
if StrictVersion(Qt.qVersion()) < StrictVersion("5.0.0"):
self.restoreGeometry(
self.settings.value("geometry").toByteArray())
else:
self.restoreGeometry(self.settings.value("geometry"))
except:
pass
##################################################
# Variables
##################################################
self.freq_offset = freq_offset = 250000
self.freq = freq = 88.5
self.volume = volume = 0
self.samp_rate = samp_rate = 2000000
self.gain = gain = 25
self.freq_tune = freq_tune = freq * 1e6 - freq_offset
##################################################
# Blocks
##################################################
self._volume_range = Range(-20, 10, 1, 0, 200)
self._volume_win = RangeWidget(self._volume_range, self.set_volume,
'Volume', "counter_slider", float,
QtCore.Qt.Horizontal)
self.top_grid_layout.addWidget(self._volume_win, 1, 0, 1, 1)
for r in range(1, 2):
self.top_grid_layout.setRowStretch(r, 1)
for c in range(0, 1):
self.top_grid_layout.setColumnStretch(c, 1)
self._gain_range = Range(0, 49.6, 1, 25, 200)
self._gain_win = RangeWidget(self._gain_range, self.set_gain,
'RF Gain', "counter_slider", float,
QtCore.Qt.Horizontal)
self.top_grid_layout.addWidget(self._gain_win, 2, 0, 1, 1)
for r in range(2, 3):
self.top_grid_layout.setRowStretch(r, 1)
for c in range(0, 1):
self.top_grid_layout.setColumnStretch(c, 1)
self._freq_range = Range(77, 108, 0.1, 88.5, 200)
self._freq_win = RangeWidget(self._freq_range, self.set_freq,
'Frequency', "counter_slider", float,
QtCore.Qt.Horizontal)
self.top_grid_layout.addWidget(self._freq_win, 0, 0, 1, 1)
for r in range(0, 1):
self.top_grid_layout.setRowStretch(r, 1)
for c in range(0, 1):
self.top_grid_layout.setColumnStretch(c, 1)
self.rtlsdr_source_0_0 = osmosdr.source(args="numchan=" + str(1) +
" " + '')
self.rtlsdr_source_0_0.set_time_unknown_pps(osmosdr.time_spec_t())
self.rtlsdr_source_0_0.set_sample_rate(samp_rate)
self.rtlsdr_source_0_0.set_center_freq(freq_tune, 0)
self.rtlsdr_source_0_0.set_freq_corr(0, 0)
self.rtlsdr_source_0_0.set_dc_offset_mode(0, 0)
self.rtlsdr_source_0_0.set_iq_balance_mode(0, 0)
self.rtlsdr_source_0_0.set_gain_mode(False, 0)
self.rtlsdr_source_0_0.set_gain(14, 0)
self.rtlsdr_source_0_0.set_if_gain(24, 0)
self.rtlsdr_source_0_0.set_bb_gain(gain, 0)
self.rtlsdr_source_0_0.set_antenna('', 0)
self.rtlsdr_source_0_0.set_bandwidth(0, 0)
self.root_raised_cosine_filter_0 = filter.fir_filter_ccf(
2, firdes.root_raised_cosine(1, 19000, 2375, 1, 100))
self.rds_parser_0 = rds.parser(False, False, 0)
self.rds_panel_0 = rds.rdsPanel(freq)
self._rds_panel_0_win = self.rds_panel_0
self.top_layout.addWidget(self._rds_panel_0_win)
self.rds_decoder_0 = rds.decoder(False, False)
self.qtgui_waterfall_sink_x_0 = qtgui.waterfall_sink_f(
1024, #size
window.WIN_BLACKMAN_hARRIS, #wintype
0, #fc
samp_rate, #bw
"", #name
1, #number of inputs
None # parent
)
self.qtgui_waterfall_sink_x_0.set_update_time(0.10)
self.qtgui_waterfall_sink_x_0.enable_grid(False)
self.qtgui_waterfall_sink_x_0.enable_axis_labels(True)
self.qtgui_waterfall_sink_x_0.set_plot_pos_half(not True)
labels = ['', '', '', '', '', '', '', '', '', '']
colors = [0, 0, 0, 0, 0, 0, 0, 0, 0, 0]
alphas = [1.0, 1.0, 1.0, 1.0, 1.0, 1.0, 1.0, 1.0, 1.0, 1.0]
for i in range(1):
if len(labels[i]) == 0:
self.qtgui_waterfall_sink_x_0.set_line_label(
i, "Data {0}".format(i))
else:
self.qtgui_waterfall_sink_x_0.set_line_label(i, labels[i])
self.qtgui_waterfall_sink_x_0.set_color_map(i, colors[i])
self.qtgui_waterfall_sink_x_0.set_line_alpha(i, alphas[i])
self.qtgui_waterfall_sink_x_0.set_intensity_range(-140, 10)
self._qtgui_waterfall_sink_x_0_win = sip.wrapinstance(
self.qtgui_waterfall_sink_x_0.pyqwidget(), Qt.QWidget)
self.top_layout.addWidget(self._qtgui_waterfall_sink_x_0_win)
self.qtgui_freq_sink_x_0 = qtgui.freq_sink_c(
1024, #size
window.WIN_BLACKMAN_hARRIS, #wintype
0, #fc
samp_rate, #bw
"", #name
1,
None # parent
)
self.qtgui_freq_sink_x_0.set_update_time(0.10)
self.qtgui_freq_sink_x_0.set_y_axis(-140, 10)
self.qtgui_freq_sink_x_0.set_y_label('Relative Gain', 'dB')
self.qtgui_freq_sink_x_0.set_trigger_mode(qtgui.TRIG_MODE_FREE, 0.0, 0,
"")
self.qtgui_freq_sink_x_0.enable_autoscale(False)
self.qtgui_freq_sink_x_0.enable_grid(False)
self.qtgui_freq_sink_x_0.set_fft_average(1.0)
self.qtgui_freq_sink_x_0.enable_axis_labels(True)
self.qtgui_freq_sink_x_0.enable_control_panel(False)
self.qtgui_freq_sink_x_0.set_fft_window_normalized(False)
labels = ['', '', '', '', '', '', '', '', '', '']
widths = [1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
colors = [
"blue", "red", "green", "black", "cyan", "magenta", "yellow",
"dark red", "dark green", "dark blue"
]
alphas = [1.0, 1.0, 1.0, 1.0, 1.0, 1.0, 1.0, 1.0, 1.0, 1.0]
for i in range(1):
if len(labels[i]) == 0:
self.qtgui_freq_sink_x_0.set_line_label(
i, "Data {0}".format(i))
else:
self.qtgui_freq_sink_x_0.set_line_label(i, labels[i])
self.qtgui_freq_sink_x_0.set_line_width(i, widths[i])
self.qtgui_freq_sink_x_0.set_line_color(i, colors[i])
self.qtgui_freq_sink_x_0.set_line_alpha(i, alphas[i])
self._qtgui_freq_sink_x_0_win = sip.wrapinstance(
self.qtgui_freq_sink_x_0.pyqwidget(), Qt.QWidget)
self.top_layout.addWidget(self._qtgui_freq_sink_x_0_win)
self.pfb_arb_resampler_xxx_1 = pfb.arb_resampler_fff(240000.0 / 250000,
taps=None,
flt_size=32)
self.pfb_arb_resampler_xxx_1.declare_sample_delay(0)
self.pfb_arb_resampler_xxx_0 = pfb.arb_resampler_ccf(19000 / 250e3,
taps=None,
flt_size=32)
self.pfb_arb_resampler_xxx_0.declare_sample_delay(0)
self.freq_xlating_fir_filter_xxx_2 = filter.freq_xlating_fir_filter_fcf(
5, firdes.low_pass(1.0, 240000, 13e3, 3e3), 38000, 240000)
self.freq_xlating_fir_filter_xxx_1_0 = filter.freq_xlating_fir_filter_fcc(
1, firdes.low_pass(2500.0, 250000, 2.6e3, 2e3), 57e3, 250000)
self.freq_xlating_fir_filter_xxx_0 = filter.freq_xlating_fir_filter_ccc(
1, firdes.low_pass(1, samp_rate, 80000, 20000), freq_offset,
samp_rate)
self.fir_filter_xxx_1 = filter.fir_filter_fff(
5, firdes.low_pass(1.0, 240000, 13e3, 3e3))
self.fir_filter_xxx_1.declare_sample_delay(0)
self.digital_psk_demod_0 = digital.psk.psk_demod(
constellation_points=2,
differential=False,
samples_per_symbol=4,
excess_bw=0.35,
phase_bw=6.28 / 100.0,
timing_bw=6.28 / 100.0,
mod_code="gray",
verbose=False,
log=False)
self.digital_diff_decoder_bb_0 = digital.diff_decoder_bb(2)
self.blocks_sub_xx_0 = blocks.sub_ff(1)
self.blocks_multiply_const_vxx_0_0 = blocks.multiply_const_ff(
10**(1. * (volume) / 10))
self.blocks_multiply_const_vxx_0 = blocks.multiply_const_ff(
10**(1. * (volume) / 10))
self.blocks_keep_one_in_n_0 = blocks.keep_one_in_n(
gr.sizeof_char * 1, 2)
self.blocks_complex_to_real_0 = blocks.complex_to_real(1)
self.blocks_add_xx_0 = blocks.add_vff(1)
self.audio_sink_0 = audio.sink(48000, '', True)
self.analog_wfm_rcv_0 = analog.wfm_rcv(
quad_rate=samp_rate,
audio_decimation=8,
)
self.analog_fm_deemph_0_0_0 = analog.fm_deemph(fs=48000, tau=75e-6)
self.analog_fm_deemph_0_0 = analog.fm_deemph(fs=48000, tau=75e-6)
##################################################
# Connections
##################################################
self.msg_connect((self.rds_decoder_0, 'out'),
(self.rds_parser_0, 'in'))
self.msg_connect((self.rds_parser_0, 'out'), (self.rds_panel_0, 'in'))
self.connect((self.analog_fm_deemph_0_0, 0),
(self.blocks_multiply_const_vxx_0_0, 0))
self.connect((self.analog_fm_deemph_0_0_0, 0),
(self.blocks_multiply_const_vxx_0, 0))
self.connect((self.analog_wfm_rcv_0, 0),
(self.freq_xlating_fir_filter_xxx_1_0, 0))
self.connect((self.analog_wfm_rcv_0, 0),
(self.pfb_arb_resampler_xxx_1, 0))
self.connect((self.analog_wfm_rcv_0, 0),
(self.qtgui_waterfall_sink_x_0, 0))
self.connect((self.blocks_add_xx_0, 0),
(self.analog_fm_deemph_0_0_0, 0))
self.connect((self.blocks_complex_to_real_0, 0),
(self.blocks_add_xx_0, 1))
self.connect((self.blocks_complex_to_real_0, 0),
(self.blocks_sub_xx_0, 1))
self.connect((self.blocks_keep_one_in_n_0, 0),
(self.digital_diff_decoder_bb_0, 0))
self.connect((self.blocks_multiply_const_vxx_0, 0),
(self.audio_sink_0, 0))
self.connect((self.blocks_multiply_const_vxx_0_0, 0),
(self.audio_sink_0, 1))
self.connect((self.blocks_sub_xx_0, 0), (self.analog_fm_deemph_0_0, 0))
self.connect((self.digital_diff_decoder_bb_0, 0),
(self.rds_decoder_0, 0))
self.connect((self.digital_psk_demod_0, 0),
(self.blocks_keep_one_in_n_0, 0))
self.connect((self.fir_filter_xxx_1, 0), (self.blocks_add_xx_0, 0))
self.connect((self.fir_filter_xxx_1, 0), (self.blocks_sub_xx_0, 0))
self.connect((self.freq_xlating_fir_filter_xxx_0, 0),
(self.analog_wfm_rcv_0, 0))
self.connect((self.freq_xlating_fir_filter_xxx_0, 0),
(self.qtgui_freq_sink_x_0, 0))
self.connect((self.freq_xlating_fir_filter_xxx_1_0, 0),
(self.pfb_arb_resampler_xxx_0, 0))
self.connect((self.freq_xlating_fir_filter_xxx_2, 0),
(self.blocks_complex_to_real_0, 0))
self.connect((self.pfb_arb_resampler_xxx_0, 0),
(self.root_raised_cosine_filter_0, 0))
self.connect((self.pfb_arb_resampler_xxx_1, 0),
(self.fir_filter_xxx_1, 0))
self.connect((self.pfb_arb_resampler_xxx_1, 0),
(self.freq_xlating_fir_filter_xxx_2, 0))
self.connect((self.root_raised_cosine_filter_0, 0),
(self.digital_psk_demod_0, 0))
self.connect((self.rtlsdr_source_0_0, 0),
(self.freq_xlating_fir_filter_xxx_0, 0))
def __init__(self, demod_rate, audio_decimation):
"""
Hierarchical block for demodulating a broadcast FM signal.
The input is the downconverted complex baseband signal (gr_complex).
The output is two streams of the demodulated audio (float) 0=Left, 1=Right.
Args:
demod_rate: input sample rate of complex baseband input. (float)
audio_decimation: how much to decimate demod_rate to get to audio. (integer) FIXME: Not actually implemented!
"""
gr.hier_block2.__init__(
self,
"wfm_rcv_pll",
gr.io_signature(1, 1, gr.sizeof_gr_complex), # Input signature
gr.io_signature(2, 2, gr.sizeof_float)) # Output signature
if audio_decimation != int(audio_decimation):
raise ValueError("audio_decimation needs to be an integer")
audio_decimation = int(audio_decimation)
##################################################
# Variables
##################################################
self.samp_rate = samp_rate = 3840000
self.rf_decim = rf_decim = 10
self.demod_rate = demod_rate = (int)(samp_rate / rf_decim)
self.stereo_carrier_filter_coeffs_0 = stereo_carrier_filter_coeffs_0 = firdes.band_pass(
1.0, demod_rate, 37600, 38400, 400, fft.window.WIN_HAMMING, 6.76)
self.stereo_carrier_filter_coeffs = stereo_carrier_filter_coeffs = firdes.complex_band_pass(
1.0, demod_rate, 18980, 19020, 1500, fft.window.WIN_HAMMING, 6.76)
self.deviation = deviation = 75000
self.audio_filter = audio_filter = firdes.low_pass(
1, demod_rate, 15000, 1500, fft.window.WIN_HAMMING, 6.76)
self.audio_decim = audio_decim = (int)(demod_rate / 48000)
##################################################
# Blocks
##################################################
self.fir_filter_xxx_1 = filter.fir_filter_fcc(
1, stereo_carrier_filter_coeffs)
self.fir_filter_xxx_1.declare_sample_delay(0)
self.fft_filter_xxx_3 = filter.fft_filter_fff(
1, stereo_carrier_filter_coeffs_0, 1)
self.fft_filter_xxx_3.declare_sample_delay(0)
self.fft_filter_xxx_2 = filter.fft_filter_fff(audio_decim,
audio_filter, 1)
self.fft_filter_xxx_2.declare_sample_delay(0)
self.fft_filter_xxx_1 = filter.fft_filter_fff(audio_decim,
audio_filter, 1)
self.fft_filter_xxx_1.declare_sample_delay(0)
self.blocks_multiply_xx_2 = blocks.multiply_vff(1)
self.blocks_multiply_xx_0 = blocks.multiply_vcc(1)
self.blocks_multiply_const_vxx_0_1 = blocks.multiply_const_ff(5.5)
self.blocks_multiply_const_vxx_0 = blocks.multiply_const_ff(-5.5)
self.blocks_complex_to_imag_0 = blocks.complex_to_imag(1)
self.blocks_add_xx_0_0 = blocks.add_vff(1)
self.blocks_add_xx_0 = blocks.add_vff(1)
self.analog_quadrature_demod_cf_0 = analog.quadrature_demod_cf(
demod_rate / (2 * math.pi * deviation))
self.analog_pll_refout_cc_0 = analog.pll_refout_cc(
0.001, 2 * math.pi * 19200 / demod_rate,
2 * math.pi * 18800 / demod_rate)
self.analog_fm_deemph_0_0 = analog.fm_deemph(fs=48000, tau=75e-6)
self.analog_fm_deemph_0 = analog.fm_deemph(fs=48000, tau=75e-6)
##################################################
# Connections
##################################################
self.connect((self.analog_fm_deemph_0, 0), (self, 0))
self.connect((self.analog_fm_deemph_0_0, 0), (self, 1))
self.connect((self.analog_pll_refout_cc_0, 0),
(self.blocks_multiply_xx_0, 1))
self.connect((self.analog_pll_refout_cc_0, 0),
(self.blocks_multiply_xx_0, 0))
self.connect((self.analog_quadrature_demod_cf_0, 0),
(self.blocks_multiply_xx_2, 0))
self.connect((self.analog_quadrature_demod_cf_0, 0),
(self.fft_filter_xxx_1, 0))
self.connect((self.analog_quadrature_demod_cf_0, 0),
(self.fir_filter_xxx_1, 0))
self.connect((self.blocks_add_xx_0, 0), (self.analog_fm_deemph_0, 0))
self.connect((self.blocks_add_xx_0_0, 0),
(self.analog_fm_deemph_0_0, 0))
self.connect((self.blocks_complex_to_imag_0, 0),
(self.fft_filter_xxx_3, 0))
self.connect((self.blocks_multiply_const_vxx_0, 0),
(self.blocks_add_xx_0, 0))
self.connect((self.blocks_multiply_const_vxx_0_1, 0),
(self.blocks_add_xx_0_0, 0))
self.connect((self.blocks_multiply_xx_0, 0),
(self.blocks_complex_to_imag_0, 0))
self.connect((self.blocks_multiply_xx_2, 0),
(self.fft_filter_xxx_2, 0))
self.connect((self.fft_filter_xxx_1, 0), (self.blocks_add_xx_0, 1))
self.connect((self.fft_filter_xxx_1, 0), (self.blocks_add_xx_0_0, 1))
self.connect((self.fft_filter_xxx_2, 0),
(self.blocks_multiply_const_vxx_0, 0))
self.connect((self.fft_filter_xxx_2, 0),
(self.blocks_multiply_const_vxx_0_1, 0))
self.connect((self.fft_filter_xxx_3, 0),
(self.blocks_multiply_xx_2, 1))
self.connect((self.fir_filter_xxx_1, 0),
(self.analog_pll_refout_cc_0, 0))
self.connect((self, 0), (self.analog_quadrature_demod_cf_0, 0))
def __init__(self):
self.fg = gr.flowgraph("Not titled yet")
Qt.QWidget.__init__(self)
self.setWindowTitle("Not titled yet")
try:
self.setWindowIcon(Qt.QIcon.fromTheme('gnuradio-grc'))
except:
pass
self.top_scroll_layout = Qt.QVBoxLayout()
self.setLayout(self.top_scroll_layout)
self.top_scroll = Qt.QScrollArea()
self.top_scroll.setFrameStyle(Qt.QFrame.NoFrame)
self.top_scroll_layout.addWidget(self.top_scroll)
self.top_scroll.setWidgetResizable(True)
self.top_widget = Qt.QWidget()
self.top_scroll.setWidget(self.top_widget)
self.top_layout = Qt.QVBoxLayout(self.top_widget)
self.top_grid_layout = Qt.QGridLayout()
self.top_layout.addLayout(self.top_grid_layout)
self.settings = Qt.QSettings("GNU Radio", "fm_rx")
try:
if StrictVersion(Qt.qVersion()) < StrictVersion("5.0.0"):
self.restoreGeometry(
self.settings.value("geometry").toByteArray())
else:
self.restoreGeometry(self.settings.value("geometry"))
except:
pass
##################################################
# Variables
##################################################
self.samp_rate = samp_rate = 4000000
self.in_rate = in_rate = samp_rate
self.freq = freq = 90500000
self.fm_deviation_hz = fm_deviation_hz = 75e3
##################################################
# Blocks
##################################################
self.qtgui_time_sink_0 = qtgui.time_sink_f(10240, samp_rate, "hello",
1)
self._qtgui_time_sink_0_win = sip.wrapinstance(
self.qtgui_time_sink_0.qwidget(), Qt.QWidget)
self.top_layout.addWidget(self._qtgui_time_sink_0_win)
self.blocks_null_source_0 = blocks.null_source(
1, 0, impl=blocks.null_source.cpu)
self.analog_quadrature_demod_0 = analog.quadrature_demod(
in_rate / (2 * math.pi * fm_deviation_hz),
impl=analog.quadrature_demod.cpu)
self.analog_fm_deemph_0 = analog.fm_deemph(400000,
75e-6,
impl=analog.fm_deemph.cpu)
##################################################
# Connections
##################################################
self.connect((self.analog_fm_deemph_0, 0), (self.qtgui_time_sink_0, 0))
self.connect((self.analog_quadrature_demod_0, 0),
(self.analog_fm_deemph_0, 0))
self.connect((self.blocks_null_source_0, 0),
(self.analog_quadrature_demod_0, 0))
def __init__(self):
grc_wxgui.top_block_gui.__init__(
self, title="Stereo FM receiver and RDS Decoder")
_icon_path = "/usr/share/icons/hicolor/24x24/apps/gnuradio-grc.png"
self.SetIcon(wx.Icon(_icon_path, wx.BITMAP_TYPE_ANY))
##################################################
# Variables
##################################################
self.samp_rate = samp_rate = 1000000
self.bb_decim = bb_decim = 4
self.freq_offset = freq_offset = 250000
self.freq = freq = 97e6
self.baseband_rate = baseband_rate = samp_rate / bb_decim
self.audio_decim = audio_decim = 5
self.xlate_bandwidth = xlate_bandwidth = 100000
self.volume = volume = 0
self.gain = gain = 20
self.freq_tune = freq_tune = freq - freq_offset
self.audio_rate = audio_rate = 48000
self.audio_decim_rate = audio_decim_rate = baseband_rate / audio_decim
##################################################
# Blocks
##################################################
_volume_sizer = wx.BoxSizer(wx.VERTICAL)
self._volume_text_box = forms.text_box(
parent=self.GetWin(),
sizer=_volume_sizer,
value=self.volume,
callback=self.set_volume,
label='Volume',
converter=forms.float_converter(),
proportion=0,
)
self._volume_slider = forms.slider(
parent=self.GetWin(),
sizer=_volume_sizer,
value=self.volume,
callback=self.set_volume,
minimum=-20,
maximum=10,
num_steps=300,
style=wx.SL_HORIZONTAL,
cast=float,
proportion=1,
)
self.GridAdd(_volume_sizer, 0, 1, 1, 1)
self.nb = self.nb = wx.Notebook(self.GetWin(), style=wx.NB_TOP)
self.nb.AddPage(grc_wxgui.Panel(self.nb), "BB")
self.nb.AddPage(grc_wxgui.Panel(self.nb), "Demod")
self.nb.AddPage(grc_wxgui.Panel(self.nb), "L+R")
self.nb.AddPage(grc_wxgui.Panel(self.nb), "Pilot")
self.nb.AddPage(grc_wxgui.Panel(self.nb), "DSBSC")
self.nb.AddPage(grc_wxgui.Panel(self.nb), "RDS")
self.nb.AddPage(grc_wxgui.Panel(self.nb), "L-R")
self.nb.AddPage(grc_wxgui.Panel(self.nb), "RDS constellation")
self.nb.AddPage(grc_wxgui.Panel(self.nb), "Waterfall")
self.GridAdd(self.nb, 2, 0, 1, 2)
_gain_sizer = wx.BoxSizer(wx.VERTICAL)
self._gain_text_box = forms.text_box(
parent=self.GetWin(),
sizer=_gain_sizer,
value=self.gain,
callback=self.set_gain,
label='RF Gain',
converter=forms.float_converter(),
proportion=0,
)
self._gain_slider = forms.slider(
parent=self.GetWin(),
sizer=_gain_sizer,
value=self.gain,
callback=self.set_gain,
minimum=0,
maximum=49.6,
num_steps=124,
style=wx.SL_HORIZONTAL,
cast=float,
proportion=1,
)
self.GridAdd(_gain_sizer, 0, 0, 1, 1)
_freq_sizer = wx.BoxSizer(wx.VERTICAL)
self._freq_text_box = forms.text_box(
parent=self.GetWin(),
sizer=_freq_sizer,
value=self.freq,
callback=self.set_freq,
label='Freq',
converter=forms.float_converter(),
proportion=0,
)
self._freq_slider = forms.slider(
parent=self.GetWin(),
sizer=_freq_sizer,
value=self.freq,
callback=self.set_freq,
minimum=88.1e6,
maximum=107.9e6,
num_steps=99,
style=wx.SL_HORIZONTAL,
cast=float,
proportion=1,
)
self.GridAdd(_freq_sizer, 1, 0, 1, 2)
self.wxgui_waterfallsink2_0 = waterfallsink2.waterfall_sink_f(
self.nb.GetPage(8).GetWin(),
baseband_freq=0,
dynamic_range=100,
ref_level=0,
ref_scale=2.0,
sample_rate=baseband_rate,
fft_size=512,
fft_rate=15,
average=False,
avg_alpha=None,
title='Waterfall Plot',
)
self.nb.GetPage(8).Add(self.wxgui_waterfallsink2_0.win)
self.wxgui_scopesink2_1 = scopesink2.scope_sink_c(
self.nb.GetPage(7).GetWin(),
title='Scope Plot',
sample_rate=2375,
v_scale=0.4,
v_offset=0,
t_scale=0,
ac_couple=False,
xy_mode=True,
num_inputs=1,
trig_mode=wxgui.TRIG_MODE_AUTO,
y_axis_label='Counts',
)
self.nb.GetPage(7).Add(self.wxgui_scopesink2_1.win)
self.wxgui_scopesink2_0 = scopesink2.scope_sink_f(
self.nb.GetPage(3).GetWin(),
title='Pilot',
sample_rate=baseband_rate,
v_scale=0,
v_offset=0,
t_scale=0,
ac_couple=False,
xy_mode=False,
num_inputs=1,
trig_mode=wxgui.TRIG_MODE_AUTO,
y_axis_label='Counts',
)
self.nb.GetPage(3).Add(self.wxgui_scopesink2_0.win)
self.wxgui_fftsink2_0_0_0_1_0_1 = fftsink2.fft_sink_c(
self.nb.GetPage(5).GetWin(),
baseband_freq=0,
y_per_div=10,
y_divs=10,
ref_level=0,
ref_scale=2.0,
sample_rate=audio_rate,
fft_size=1024,
fft_rate=15,
average=False,
avg_alpha=None,
title='RDS',
peak_hold=False,
)
self.nb.GetPage(5).Add(self.wxgui_fftsink2_0_0_0_1_0_1.win)
self.wxgui_fftsink2_0_0_0_1_0_0 = fftsink2.fft_sink_f(
self.nb.GetPage(6).GetWin(),
baseband_freq=0,
y_per_div=10,
y_divs=10,
ref_level=-50,
ref_scale=2.0,
sample_rate=baseband_rate,
fft_size=1024,
fft_rate=15,
average=False,
avg_alpha=None,
title='L-R',
peak_hold=False,
)
self.nb.GetPage(6).Add(self.wxgui_fftsink2_0_0_0_1_0_0.win)
self.wxgui_fftsink2_0_0_0_1 = fftsink2.fft_sink_f(
self.nb.GetPage(4).GetWin(),
baseband_freq=0,
y_per_div=10,
y_divs=10,
ref_level=0,
ref_scale=2.0,
sample_rate=baseband_rate,
fft_size=1024,
fft_rate=15,
average=False,
avg_alpha=None,
title='DSBSC Sub-carrier',
peak_hold=False,
)
self.nb.GetPage(4).Add(self.wxgui_fftsink2_0_0_0_1.win)
self.wxgui_fftsink2_0_0_0 = fftsink2.fft_sink_f(
self.nb.GetPage(2).GetWin(),
baseband_freq=0,
y_per_div=10,
y_divs=10,
ref_level=0,
ref_scale=2.0,
sample_rate=audio_decim_rate,
fft_size=1024,
fft_rate=15,
average=False,
avg_alpha=None,
title='L+R',
peak_hold=False,
)
self.nb.GetPage(2).Add(self.wxgui_fftsink2_0_0_0.win)
self.wxgui_fftsink2_0_0 = fftsink2.fft_sink_f(
self.nb.GetPage(1).GetWin(),
baseband_freq=0,
y_per_div=10,
y_divs=10,
ref_level=0,
ref_scale=2.0,
sample_rate=baseband_rate,
fft_size=1024,
fft_rate=15,
average=True,
avg_alpha=0.8,
title='FM Demod',
peak_hold=False,
)
self.nb.GetPage(1).Add(self.wxgui_fftsink2_0_0.win)
self.wxgui_fftsink2_0 = fftsink2.fft_sink_c(
self.nb.GetPage(0).GetWin(),
baseband_freq=0,
y_per_div=10,
y_divs=10,
ref_level=-30,
ref_scale=2.0,
sample_rate=samp_rate,
fft_size=1024,
fft_rate=15,
average=True,
avg_alpha=0.8,
title='Baseband',
peak_hold=False,
)
self.nb.GetPage(0).Add(self.wxgui_fftsink2_0.win)
self.root_raised_cosine_filter_0 = filter.fir_filter_ccf(
1,
firdes.root_raised_cosine(1, samp_rate / bb_decim / audio_decim,
2375, 1, 100))
self.rational_resampler_xxx_0_0 = filter.rational_resampler_fff(
interpolation=audio_rate,
decimation=audio_decim_rate,
taps=None,
fractional_bw=None,
)
self.rational_resampler_xxx_0 = filter.rational_resampler_fff(
interpolation=audio_rate,
decimation=audio_decim_rate,
taps=None,
fractional_bw=None,
)
self.osmosdr_source_0 = osmosdr.source(args="numchan=" + str(1) + " " +
'')
self.osmosdr_source_0.set_sample_rate(samp_rate)
self.osmosdr_source_0.set_center_freq(freq_tune, 0)
self.osmosdr_source_0.set_freq_corr(0, 0)
self.osmosdr_source_0.set_dc_offset_mode(0, 0)
self.osmosdr_source_0.set_iq_balance_mode(0, 0)
self.osmosdr_source_0.set_gain_mode(False, 0)
self.osmosdr_source_0.set_gain(gain, 0)
self.osmosdr_source_0.set_if_gain(20, 0)
self.osmosdr_source_0.set_bb_gain(20, 0)
self.osmosdr_source_0.set_antenna('', 0)
self.osmosdr_source_0.set_bandwidth(0, 0)
self.gr_rds_parser_0 = rds.parser(True, False, 0)
self.gr_rds_panel_0 = rds.rdsPanel(freq, self.GetWin())
self.Add(self.gr_rds_panel_0.panel)
self.gr_rds_decoder_0 = rds.decoder(False, False)
self.freq_xlating_fir_filter_xxx_1 = filter.freq_xlating_fir_filter_fcc(
audio_decim, (firdes.low_pass(2500.0, baseband_rate, 2.4e3, 2e3,
firdes.WIN_HAMMING)), 57e3,
baseband_rate)
self.freq_xlating_fir_filter_xxx_0 = filter.freq_xlating_fir_filter_ccc(
1, (firdes.low_pass(1, samp_rate, xlate_bandwidth, 100000)),
freq_offset, samp_rate)
self.fir_filter_xxx_5 = filter.fir_filter_fff(
audio_decim, (firdes.low_pass(1.0, baseband_rate, 20e3, 40e3,
firdes.WIN_HAMMING)))
self.fir_filter_xxx_5.declare_sample_delay(0)
self.fir_filter_xxx_3 = filter.fir_filter_fff(
1, (firdes.band_pass(1.0, baseband_rate, 38e3 - 13e3, 38e3 + 13e3,
3e3, firdes.WIN_HAMMING)))
self.fir_filter_xxx_3.declare_sample_delay(0)
self.fir_filter_xxx_2 = filter.fir_filter_fcc(
1, (firdes.complex_band_pass(1.0, baseband_rate, 19e3 - 500,
19e3 + 500, 1e3, firdes.WIN_HAMMING)))
self.fir_filter_xxx_2.declare_sample_delay(0)
self.fir_filter_xxx_1 = filter.fir_filter_fff(
audio_decim, (firdes.low_pass(1.0, baseband_rate, 13e3, 3e3,
firdes.WIN_HAMMING)))
self.fir_filter_xxx_1.declare_sample_delay(0)
self.digital_mpsk_receiver_cc_0 = digital.mpsk_receiver_cc(
2, 0, 1 * cmath.pi / 100.0, -0.06, 0.06, 0.5, 0.05,
samp_rate / bb_decim / audio_decim / 2375.0, 0.001, 0.005)
self.digital_diff_decoder_bb_0 = digital.diff_decoder_bb(2)
self.digital_binary_slicer_fb_0 = digital.binary_slicer_fb()
self.blocks_sub_xx_0 = blocks.sub_ff(1)
self.blocks_multiply_xx_1 = blocks.multiply_vcc(1)
self.blocks_multiply_xx_0 = blocks.multiply_vff(1)
self.blocks_multiply_const_vxx_0_0 = blocks.multiply_const_vff(
(10**(1. * (volume + 15) / 10), ))
self.blocks_multiply_const_vxx_0 = blocks.multiply_const_vff(
(10**(1. * (volume + 15) / 10), ))
self.blocks_keep_one_in_n_0 = blocks.keep_one_in_n(
gr.sizeof_char * 1, 2)
self.blocks_complex_to_real_0 = blocks.complex_to_real(1)
self.blocks_complex_to_imag_0 = blocks.complex_to_imag(1)
self.blocks_add_xx_0 = blocks.add_vff(1)
self.audio_sink_0 = audio.sink(audio_rate, '', True)
self.analog_wfm_rcv_0 = analog.wfm_rcv(
quad_rate=samp_rate,
audio_decimation=bb_decim,
)
self.analog_pll_refout_cc_0 = analog.pll_refout_cc(
0.001, 2 * math.pi * (19000 + 200) / baseband_rate,
2 * math.pi * (19000 - 200) / baseband_rate)
self.analog_fm_deemph_0_0_0 = analog.fm_deemph(fs=audio_decim_rate,
tau=75e-6)
self.analog_fm_deemph_0_0 = analog.fm_deemph(fs=audio_decim_rate,
tau=75e-6)
##################################################
# Connections
##################################################
self.msg_connect((self.gr_rds_decoder_0, 'out'),
(self.gr_rds_parser_0, 'in'))
self.msg_connect((self.gr_rds_parser_0, 'out'),
(self.gr_rds_panel_0, 'in'))
self.connect((self.analog_fm_deemph_0_0, 0),
(self.blocks_multiply_const_vxx_0_0, 0))
self.connect((self.analog_fm_deemph_0_0_0, 0),
(self.blocks_multiply_const_vxx_0, 0))
self.connect((self.analog_pll_refout_cc_0, 0),
(self.blocks_multiply_xx_1, 0))
self.connect((self.analog_pll_refout_cc_0, 0),
(self.blocks_multiply_xx_1, 1))
self.connect((self.analog_wfm_rcv_0, 0), (self.fir_filter_xxx_1, 0))
self.connect((self.analog_wfm_rcv_0, 0), (self.fir_filter_xxx_2, 0))
self.connect((self.analog_wfm_rcv_0, 0), (self.fir_filter_xxx_3, 0))
self.connect((self.analog_wfm_rcv_0, 0),
(self.freq_xlating_fir_filter_xxx_1, 0))
self.connect((self.analog_wfm_rcv_0, 0), (self.wxgui_fftsink2_0_0, 0))
self.connect((self.analog_wfm_rcv_0, 0),
(self.wxgui_waterfallsink2_0, 0))
self.connect((self.blocks_add_xx_0, 0),
(self.analog_fm_deemph_0_0_0, 0))
self.connect((self.blocks_complex_to_imag_0, 0),
(self.blocks_multiply_xx_0, 1))
self.connect((self.blocks_complex_to_imag_0, 0),
(self.wxgui_scopesink2_0, 0))
self.connect((self.blocks_complex_to_real_0, 0),
(self.digital_binary_slicer_fb_0, 0))
self.connect((self.blocks_keep_one_in_n_0, 0),
(self.digital_diff_decoder_bb_0, 0))
self.connect((self.blocks_multiply_const_vxx_0, 0),
(self.rational_resampler_xxx_0, 0))
self.connect((self.blocks_multiply_const_vxx_0_0, 0),
(self.rational_resampler_xxx_0_0, 0))
self.connect((self.blocks_multiply_xx_0, 0),
(self.fir_filter_xxx_5, 0))
self.connect((self.blocks_multiply_xx_0, 0),
(self.wxgui_fftsink2_0_0_0_1_0_0, 0))
self.connect((self.blocks_multiply_xx_1, 0),
(self.blocks_complex_to_imag_0, 0))
self.connect((self.blocks_sub_xx_0, 0), (self.analog_fm_deemph_0_0, 0))
self.connect((self.digital_binary_slicer_fb_0, 0),
(self.blocks_keep_one_in_n_0, 0))
self.connect((self.digital_diff_decoder_bb_0, 0),
(self.gr_rds_decoder_0, 0))
self.connect((self.digital_mpsk_receiver_cc_0, 0),
(self.blocks_complex_to_real_0, 0))
self.connect((self.digital_mpsk_receiver_cc_0, 0),
(self.wxgui_scopesink2_1, 0))
self.connect((self.fir_filter_xxx_1, 0), (self.blocks_add_xx_0, 0))
self.connect((self.fir_filter_xxx_1, 0), (self.blocks_sub_xx_0, 0))
self.connect((self.fir_filter_xxx_1, 0),
(self.wxgui_fftsink2_0_0_0, 0))
self.connect((self.fir_filter_xxx_2, 0),
(self.analog_pll_refout_cc_0, 0))
self.connect((self.fir_filter_xxx_3, 0),
(self.blocks_multiply_xx_0, 0))
self.connect((self.fir_filter_xxx_3, 0),
(self.wxgui_fftsink2_0_0_0_1, 0))
self.connect((self.fir_filter_xxx_5, 0), (self.blocks_add_xx_0, 1))
self.connect((self.fir_filter_xxx_5, 0), (self.blocks_sub_xx_0, 1))
self.connect((self.freq_xlating_fir_filter_xxx_0, 0),
(self.analog_wfm_rcv_0, 0))
self.connect((self.freq_xlating_fir_filter_xxx_0, 0),
(self.wxgui_fftsink2_0, 0))
self.connect((self.freq_xlating_fir_filter_xxx_1, 0),
(self.root_raised_cosine_filter_0, 0))
self.connect((self.freq_xlating_fir_filter_xxx_1, 0),
(self.wxgui_fftsink2_0_0_0_1_0_1, 0))
self.connect((self.osmosdr_source_0, 0),
(self.freq_xlating_fir_filter_xxx_0, 0))
self.connect((self.rational_resampler_xxx_0, 0),
(self.audio_sink_0, 0))
self.connect((self.rational_resampler_xxx_0_0, 0),
(self.audio_sink_0, 1))
self.connect((self.root_raised_cosine_filter_0, 0),
(self.digital_mpsk_receiver_cc_0, 0))
def __init__(self):
grc_wxgui.top_block_gui.__init__(self, title="JMPXRDS Receiver (based on gr_rds)")
_icon_path = "/usr/share/icons/hicolor/32x32/apps/gnuradio-grc.png"
self.SetIcon(wx.Icon(_icon_path, wx.BITMAP_TYPE_ANY))
self._lock = threading.RLock()
##################################################
# Variables
##################################################
self.volume = volume = -3
self.mpx_samp_rate_0 = mpx_samp_rate_0 = 192000
self.mpx_samp_rate = mpx_samp_rate = 192000
self.audio_samp_rate = audio_samp_rate = 96000
##################################################
# Blocks
##################################################
_volume_sizer = wx.BoxSizer(wx.VERTICAL)
self._volume_text_box = forms.text_box(
parent=self.GetWin(),
sizer=_volume_sizer,
value=self.volume,
callback=self.set_volume,
label='Volume',
converter=forms.float_converter(),
proportion=0,
)
self._volume_slider = forms.slider(
parent=self.GetWin(),
sizer=_volume_sizer,
value=self.volume,
callback=self.set_volume,
minimum=-20,
maximum=10,
num_steps=300,
style=wx.SL_HORIZONTAL,
cast=float,
proportion=1,
)
self.GridAdd(_volume_sizer, 0, 0, 1, 1)
self.nb = self.nb = wx.Notebook(self.GetWin(), style=wx.NB_TOP)
self.nb.AddPage(grc_wxgui.Panel(self.nb), "MPX Plot")
self.nb.AddPage(grc_wxgui.Panel(self.nb), "MPX Waterfall")
self.nb.AddPage(grc_wxgui.Panel(self.nb), "L+R")
self.nb.AddPage(grc_wxgui.Panel(self.nb), "L-R")
self.nb.AddPage(grc_wxgui.Panel(self.nb), "RDS Plot")
self.nb.AddPage(grc_wxgui.Panel(self.nb), "RDS Constelation")
self.GridAdd(self.nb, 1, 0, 1, 1)
self.wxgui_waterfallsink2_0 = waterfallsink2.waterfall_sink_f(
self.nb.GetPage(1).GetWin(),
baseband_freq=0,
dynamic_range=100,
ref_level=0,
ref_scale=2.0,
sample_rate=mpx_samp_rate,
fft_size=512,
fft_rate=15,
average=False,
avg_alpha=None,
title='MPX Waterfall Plot',
)
self.nb.GetPage(1).Add(self.wxgui_waterfallsink2_0.win)
self.wxgui_scopesink2_1 = scopesink2.scope_sink_c(
self.nb.GetPage(5).GetWin(),
title='Scope Plot',
sample_rate=mpx_samp_rate / 4,
v_scale=0.4,
v_offset=0,
t_scale=0,
ac_couple=False,
xy_mode=True,
num_inputs=1,
trig_mode=wxgui.TRIG_MODE_AUTO,
y_axis_label='Counts',
)
self.nb.GetPage(5).Add(self.wxgui_scopesink2_1.win)
self.wxgui_fftsink2_0_0_1 = fftsink2.fft_sink_c(
self.nb.GetPage(0).GetWin(),
baseband_freq=0,
y_per_div=10,
y_divs=10,
ref_level=0,
ref_scale=2.0,
sample_rate=mpx_samp_rate,
fft_size=1024,
fft_rate=15,
average=True,
avg_alpha=0.8,
title='MPX FFT',
peak_hold=False,
win=window.flattop,
)
self.nb.GetPage(0).Add(self.wxgui_fftsink2_0_0_1.win)
self.wxgui_fftsink2_0_0_0_1_0_1 = fftsink2.fft_sink_c(
self.nb.GetPage(4).GetWin(),
baseband_freq=0,
y_per_div=10,
y_divs=10,
ref_level=0,
ref_scale=2.0,
sample_rate=mpx_samp_rate/4,
fft_size=1024,
fft_rate=12,
average=False,
avg_alpha=None,
title='RDS',
peak_hold=False,
win=window.blackmanharris,
)
self.nb.GetPage(4).Add(self.wxgui_fftsink2_0_0_0_1_0_1.win)
self.wxgui_fftsink2_0_0_0_1 = fftsink2.fft_sink_f(
self.nb.GetPage(3).GetWin(),
baseband_freq=0,
y_per_div=10,
y_divs=10,
ref_level=0,
ref_scale=2.0,
sample_rate=mpx_samp_rate,
fft_size=1024,
fft_rate=15,
average=False,
avg_alpha=None,
title='L-R',
peak_hold=False,
win=window.flattop,
)
self.nb.GetPage(3).Add(self.wxgui_fftsink2_0_0_0_1.win)
self.wxgui_fftsink2_0_0_0 = fftsink2.fft_sink_f(
self.nb.GetPage(2).GetWin(),
baseband_freq=0,
y_per_div=10,
y_divs=10,
ref_level=0,
ref_scale=2.0,
sample_rate=mpx_samp_rate,
fft_size=1024,
fft_rate=15,
average=False,
avg_alpha=None,
title='L+R',
peak_hold=False,
win=window.flattop,
)
self.nb.GetPage(2).Add(self.wxgui_fftsink2_0_0_0.win)
self.wxgui_fftsink2_0_0 = fftsink2.fft_sink_f(
self.nb.GetPage(0).GetWin(),
baseband_freq=0,
y_per_div=10,
y_divs=10,
ref_level=0,
ref_scale=2.0,
sample_rate=mpx_samp_rate,
fft_size=1024,
fft_rate=15,
average=True,
avg_alpha=0.8,
title='MPX FFT',
peak_hold=False,
win=window.flattop,
)
self.nb.GetPage(0).Add(self.wxgui_fftsink2_0_0.win)
self.root_raised_cosine_filter_0 = filter.fir_filter_ccf(1, firdes.root_raised_cosine(
1, mpx_samp_rate/4, 2375, 1, 100))
self.rational_resampler_xxx_0_0 = filter.rational_resampler_fff(
interpolation=audio_samp_rate,
decimation=mpx_samp_rate,
taps=None,
fractional_bw=0.4,
)
self.rational_resampler_xxx_0 = filter.rational_resampler_fff(
interpolation=audio_samp_rate,
decimation=mpx_samp_rate,
taps=None,
fractional_bw=0.4,
)
self.gr_rds_parser_0 = rds.parser(False, False, 0)
self.gr_rds_panel_0 = rds.rdsPanel(96700000, self.GetWin())
self.Add(self.gr_rds_panel_0.panel)
self.gr_rds_decoder_0 = rds.decoder(False, False)
self.freq_xlating_fir_filter_xxx_2 = filter.freq_xlating_fir_filter_fcf(1, (firdes.low_pass(1.0,mpx_samp_rate,17e3,3e3,firdes.WIN_HAMMING)), 38000, mpx_samp_rate)
self.freq_xlating_fir_filter_xxx_1 = filter.freq_xlating_fir_filter_fcc(4, (firdes.low_pass(1.0,mpx_samp_rate,2.4e3,2e3,firdes.WIN_HAMMING)), 57e3, mpx_samp_rate)
self.fir_filter_xxx_1 = filter.fir_filter_fff(1, (firdes.low_pass(1.0,mpx_samp_rate,17e3,3e3,firdes.WIN_HAMMING)))
self.fir_filter_xxx_1.declare_sample_delay(0)
self.digital_mpsk_receiver_cc_0 = digital.mpsk_receiver_cc(2, 0, 1*cmath.pi/100.0, -0.06, 0.06, 0.5, 0.05, mpx_samp_rate/4/2375.0, 0.001, 0.005)
self.digital_diff_decoder_bb_0 = digital.diff_decoder_bb(2)
self.digital_binary_slicer_fb_0 = digital.binary_slicer_fb()
self.blocks_sub_xx_0 = blocks.sub_ff(1)
self.blocks_multiply_const_vxx_0_0 = blocks.multiply_const_vff((10**(1.*(volume)/10), ))
self.blocks_multiply_const_vxx_0 = blocks.multiply_const_vff((10**(1.*(volume)/10), ))
self.blocks_keep_one_in_n_0 = blocks.keep_one_in_n(gr.sizeof_char*1, 2)
self.blocks_file_source_0 = blocks.file_source(gr.sizeof_float*1, '/tmp/jmpxrds_rtp_client.sock', False)
self.blocks_file_source_0.set_begin_tag(pmt.PMT_NIL)
self.blocks_complex_to_real_0_0 = blocks.complex_to_real(1)
self.blocks_complex_to_real_0 = blocks.complex_to_real(1)
self.blocks_add_xx_0 = blocks.add_vff(1)
self.audio_sink_0 = audio.sink(audio_samp_rate, '', True)
self.analog_frequency_modulator_fc_0 = analog.frequency_modulator_fc(1)
self.analog_fm_deemph_0_0_0 = analog.fm_deemph(fs=mpx_samp_rate, tau=50e-6)
self.analog_fm_deemph_0_0 = analog.fm_deemph(fs=mpx_samp_rate, tau=50e-6)
##################################################
# Connections
##################################################
self.msg_connect((self.gr_rds_decoder_0, 'out'), (self.gr_rds_parser_0, 'in'))
self.msg_connect((self.gr_rds_parser_0, 'out'), (self.gr_rds_panel_0, 'in'))
self.connect((self.analog_fm_deemph_0_0, 0), (self.blocks_multiply_const_vxx_0_0, 0))
self.connect((self.analog_fm_deemph_0_0_0, 0), (self.blocks_multiply_const_vxx_0, 0))
self.connect((self.analog_frequency_modulator_fc_0, 0), (self.wxgui_fftsink2_0_0_1, 0))
self.connect((self.blocks_add_xx_0, 0), (self.analog_fm_deemph_0_0_0, 0))
self.connect((self.blocks_complex_to_real_0, 0), (self.blocks_add_xx_0, 1))
self.connect((self.blocks_complex_to_real_0, 0), (self.blocks_sub_xx_0, 1))
self.connect((self.blocks_complex_to_real_0, 0), (self.wxgui_fftsink2_0_0_0_1, 0))
self.connect((self.blocks_complex_to_real_0_0, 0), (self.digital_binary_slicer_fb_0, 0))
self.connect((self.blocks_file_source_0, 0), (self.analog_frequency_modulator_fc_0, 0))
self.connect((self.blocks_file_source_0, 0), (self.fir_filter_xxx_1, 0))
self.connect((self.blocks_file_source_0, 0), (self.freq_xlating_fir_filter_xxx_1, 0))
self.connect((self.blocks_file_source_0, 0), (self.freq_xlating_fir_filter_xxx_2, 0))
self.connect((self.blocks_file_source_0, 0), (self.wxgui_fftsink2_0_0, 0))
self.connect((self.blocks_file_source_0, 0), (self.wxgui_waterfallsink2_0, 0))
self.connect((self.blocks_keep_one_in_n_0, 0), (self.digital_diff_decoder_bb_0, 0))
self.connect((self.blocks_multiply_const_vxx_0, 0), (self.rational_resampler_xxx_0, 0))
self.connect((self.blocks_multiply_const_vxx_0_0, 0), (self.rational_resampler_xxx_0_0, 0))
self.connect((self.blocks_sub_xx_0, 0), (self.analog_fm_deemph_0_0, 0))
self.connect((self.digital_binary_slicer_fb_0, 0), (self.blocks_keep_one_in_n_0, 0))
self.connect((self.digital_diff_decoder_bb_0, 0), (self.gr_rds_decoder_0, 0))
self.connect((self.digital_mpsk_receiver_cc_0, 0), (self.blocks_complex_to_real_0_0, 0))
self.connect((self.digital_mpsk_receiver_cc_0, 0), (self.wxgui_scopesink2_1, 0))
self.connect((self.fir_filter_xxx_1, 0), (self.blocks_add_xx_0, 0))
self.connect((self.fir_filter_xxx_1, 0), (self.blocks_sub_xx_0, 0))
self.connect((self.fir_filter_xxx_1, 0), (self.wxgui_fftsink2_0_0_0, 0))
self.connect((self.freq_xlating_fir_filter_xxx_1, 0), (self.root_raised_cosine_filter_0, 0))
self.connect((self.freq_xlating_fir_filter_xxx_1, 0), (self.wxgui_fftsink2_0_0_0_1_0_1, 0))
self.connect((self.freq_xlating_fir_filter_xxx_2, 0), (self.blocks_complex_to_real_0, 0))
self.connect((self.rational_resampler_xxx_0, 0), (self.audio_sink_0, 0))
self.connect((self.rational_resampler_xxx_0_0, 0), (self.audio_sink_0, 1))
self.connect((self.root_raised_cosine_filter_0, 0), (self.digital_mpsk_receiver_cc_0, 0))
def __init__(self):
grc_wxgui.top_block_gui.__init__(
self, title="Stereo FM receiver and RDS Decoder")
_icon_path = "/usr/share/icons/hicolor/32x32/apps/gnuradio-grc.png"
self.SetIcon(wx.Icon(_icon_path, wx.BITMAP_TYPE_ANY))
##################################################
# Variables
##################################################
self.freq_offset = freq_offset = 250000
self.freq = freq = 95.8e6
self.volume = volume = -3
self.samp_rate = samp_rate = 1e6
self.gain = gain = 20
self.freq_tune = freq_tune = freq - freq_offset
self.capture_base_freq = capture_base_freq = 88e6
##################################################
# Blocks
##################################################
_volume_sizer = wx.BoxSizer(wx.VERTICAL)
self._volume_text_box = forms.text_box(
parent=self.GetWin(),
sizer=_volume_sizer,
value=self.volume,
callback=self.set_volume,
label='Volume',
converter=forms.float_converter(),
proportion=0,
)
self._volume_slider = forms.slider(
parent=self.GetWin(),
sizer=_volume_sizer,
value=self.volume,
callback=self.set_volume,
minimum=-20,
maximum=10,
num_steps=300,
style=wx.SL_HORIZONTAL,
cast=float,
proportion=1,
)
self.GridAdd(_volume_sizer, 0, 1, 1, 1)
self.nb = self.nb = wx.Notebook(self.GetWin(), style=wx.NB_TOP)
self.nb.AddPage(grc_wxgui.Panel(self.nb), "BB")
self.nb.AddPage(grc_wxgui.Panel(self.nb), "Demod")
self.nb.AddPage(grc_wxgui.Panel(self.nb), "Waterfall")
self.nb.AddPage(grc_wxgui.Panel(self.nb), "L+R")
self.nb.AddPage(grc_wxgui.Panel(self.nb), "L-R")
self.nb.AddPage(grc_wxgui.Panel(self.nb), "RDS")
self.nb.AddPage(grc_wxgui.Panel(self.nb), "Const")
self.nb.AddPage(grc_wxgui.Panel(self.nb), "x")
self.nb.AddPage(grc_wxgui.Panel(self.nb), "y")
self.GridAdd(self.nb, 2, 0, 1, 2)
_freq_sizer = wx.BoxSizer(wx.VERTICAL)
self._freq_text_box = forms.text_box(
parent=self.GetWin(),
sizer=_freq_sizer,
value=self.freq,
callback=self.set_freq,
label='Freq',
converter=forms.float_converter(),
proportion=0,
)
self._freq_slider = forms.slider(
parent=self.GetWin(),
sizer=_freq_sizer,
value=self.freq,
callback=self.set_freq,
minimum=88e6,
maximum=108e6,
num_steps=800,
style=wx.SL_HORIZONTAL,
cast=float,
proportion=1,
)
self.GridAdd(_freq_sizer, 1, 0, 1, 2)
self.wxgui_waterfallsink2_1 = waterfallsink2.waterfall_sink_c(
self.nb.GetPage(8).GetWin(),
baseband_freq=0,
dynamic_range=100,
ref_level=0,
ref_scale=2.0,
sample_rate=samp_rate,
fft_size=512,
fft_rate=15,
average=False,
avg_alpha=None,
title='Waterfall Plot',
)
self.nb.GetPage(8).Add(self.wxgui_waterfallsink2_1.win)
self.wxgui_waterfallsink2_0 = waterfallsink2.waterfall_sink_f(
self.nb.GetPage(2).GetWin(),
baseband_freq=0,
dynamic_range=100,
ref_level=0,
ref_scale=2.0,
sample_rate=250000,
fft_size=512,
fft_rate=15,
average=False,
avg_alpha=None,
title='Waterfall Plot',
)
self.nb.GetPage(2).Add(self.wxgui_waterfallsink2_0.win)
self.wxgui_scopesink2_1 = scopesink2.scope_sink_c(
self.nb.GetPage(6).GetWin(),
title='Scope Plot',
sample_rate=2375 * 4,
v_scale=0.4,
v_offset=0,
t_scale=0,
ac_couple=False,
xy_mode=True,
num_inputs=1,
trig_mode=wxgui.TRIG_MODE_AUTO,
y_axis_label='Counts',
)
self.nb.GetPage(6).Add(self.wxgui_scopesink2_1.win)
self.wxgui_fftsink2_1 = fftsink2.fft_sink_c(
self.nb.GetPage(7).GetWin(),
baseband_freq=0,
y_per_div=10,
y_divs=10,
ref_level=0,
ref_scale=2.0,
sample_rate=samp_rate,
fft_size=1024,
fft_rate=15,
average=False,
avg_alpha=None,
title='FFT Plot',
peak_hold=False,
)
self.nb.GetPage(7).Add(self.wxgui_fftsink2_1.win)
self.wxgui_fftsink2_0_0_0_1_0_1 = fftsink2.fft_sink_c(
self.nb.GetPage(5).GetWin(),
baseband_freq=0,
y_per_div=10,
y_divs=10,
ref_level=0,
ref_scale=2.0,
sample_rate=19000,
fft_size=1024,
fft_rate=15,
average=False,
avg_alpha=None,
title='RDS',
peak_hold=False,
)
self.nb.GetPage(5).Add(self.wxgui_fftsink2_0_0_0_1_0_1.win)
self.wxgui_fftsink2_0_0_0_1 = fftsink2.fft_sink_f(
self.nb.GetPage(4).GetWin(),
baseband_freq=0,
y_per_div=10,
y_divs=10,
ref_level=0,
ref_scale=2.0,
sample_rate=48000,
fft_size=1024,
fft_rate=15,
average=False,
avg_alpha=None,
title='L-R',
peak_hold=False,
)
self.nb.GetPage(4).Add(self.wxgui_fftsink2_0_0_0_1.win)
self.wxgui_fftsink2_0_0_0 = fftsink2.fft_sink_f(
self.nb.GetPage(3).GetWin(),
baseband_freq=0,
y_per_div=10,
y_divs=10,
ref_level=0,
ref_scale=2.0,
sample_rate=48000,
fft_size=1024,
fft_rate=15,
average=False,
avg_alpha=None,
title='L+R',
peak_hold=False,
)
self.nb.GetPage(3).Add(self.wxgui_fftsink2_0_0_0.win)
self.wxgui_fftsink2_0_0 = fftsink2.fft_sink_f(
self.nb.GetPage(1).GetWin(),
baseband_freq=0,
y_per_div=10,
y_divs=10,
ref_level=0,
ref_scale=2.0,
sample_rate=250000,
fft_size=1024,
fft_rate=15,
average=True,
avg_alpha=0.8,
title='FM Demod',
peak_hold=False,
)
self.nb.GetPage(1).Add(self.wxgui_fftsink2_0_0.win)
self.wxgui_fftsink2_0 = fftsink2.fft_sink_c(
self.nb.GetPage(0).GetWin(),
baseband_freq=0,
y_per_div=10,
y_divs=10,
ref_level=-30,
ref_scale=2.0,
sample_rate=samp_rate,
fft_size=1024,
fft_rate=15,
average=True,
avg_alpha=0.8,
title='Baseband',
peak_hold=False,
)
self.nb.GetPage(0).Add(self.wxgui_fftsink2_0.win)
self.root_raised_cosine_filter_0 = filter.fir_filter_ccf(
2, firdes.root_raised_cosine(1, 19000, 2375, .35, 100))
self.pfb_arb_resampler_xxx_1 = pfb.arb_resampler_fff(240000.0 / 250000,
taps=None,
flt_size=32)
self.pfb_arb_resampler_xxx_1.declare_sample_delay(0)
self.pfb_arb_resampler_xxx_0 = pfb.arb_resampler_ccf(19000 / 250e3,
taps=None,
flt_size=32)
self.pfb_arb_resampler_xxx_0.declare_sample_delay(0)
self.gr_rds_parser_0 = rds.parser(True, False, 0)
self.gr_rds_panel_0 = rds.rdsPanel(freq, self.GetWin())
self.Add(self.gr_rds_panel_0.panel)
self.gr_rds_decoder_0 = rds.decoder(False, False)
_gain_sizer = wx.BoxSizer(wx.VERTICAL)
self._gain_text_box = forms.text_box(
parent=self.GetWin(),
sizer=_gain_sizer,
value=self.gain,
callback=self.set_gain,
label='RF Gain',
converter=forms.float_converter(),
proportion=0,
)
self._gain_slider = forms.slider(
parent=self.GetWin(),
sizer=_gain_sizer,
value=self.gain,
callback=self.set_gain,
minimum=0,
maximum=49.6,
num_steps=124,
style=wx.SL_HORIZONTAL,
cast=float,
proportion=1,
)
self.GridAdd(_gain_sizer, 0, 0, 1, 1)
self.freq_xlating_fir_filter_xxx_2 = filter.freq_xlating_fir_filter_fcf(
5, (firdes.low_pass(1.0, 240000, 13e3, 3e3, firdes.WIN_HAMMING)),
38000, 240000)
self.freq_xlating_fir_filter_xxx_1_0 = filter.freq_xlating_fir_filter_fcc(
1,
(firdes.low_pass(2500.0, 250000, 2.6e3, 2e3, firdes.WIN_HAMMING)),
57e3, 250000)
self.freq_xlating_fir_filter_xxx_0 = filter.freq_xlating_fir_filter_ccc(
1, (firdes.low_pass(1, samp_rate, 80000, 20000)), freq_offset,
samp_rate)
self.fir_filter_xxx_1 = filter.fir_filter_fff(
5, (firdes.low_pass(1.0, 240000, 13e3, 3e3, firdes.WIN_HAMMING)))
self.fir_filter_xxx_1.declare_sample_delay(0)
self.digital_psk_demod_0 = digital.psk.psk_demod(
constellation_points=2,
differential=False,
samples_per_symbol=4,
excess_bw=0.35,
phase_bw=6.28 / 100.0,
timing_bw=6.28 / 100.0,
mod_code="gray",
verbose=False,
log=False,
)
self.digital_diff_decoder_bb_0 = digital.diff_decoder_bb(2)
self.blocks_sub_xx_0 = blocks.sub_ff(1)
self.blocks_multiply_xx_0 = blocks.multiply_vcc(1)
self.blocks_multiply_const_vxx_0_0 = blocks.multiply_const_vff(
(10**(1. * (volume) / 10), ))
self.blocks_multiply_const_vxx_0 = blocks.multiply_const_vff(
(10**(1. * (volume) / 10), ))
self.blocks_keep_one_in_n_0 = blocks.keep_one_in_n(
gr.sizeof_char * 1, 2)
self.blocks_file_source_0 = blocks.file_source(
gr.sizeof_gr_complex * 1,
'/home/deepstar/Projects/OverTheWire/advent2019/advent2019/steven/northpole-airwaves/northpole-airwaves.wav',
True)
self.blocks_complex_to_real_0 = blocks.complex_to_real(1)
self.blocks_add_xx_0 = blocks.add_vff(1)
self.audio_sink_0 = audio.sink(48000, '', True)
self.analog_wfm_rcv_0 = analog.wfm_rcv(
quad_rate=samp_rate,
audio_decimation=int(samp_rate / (250e3)),
)
self.analog_sig_source_x_0 = analog.sig_source_c(
samp_rate, analog.GR_COS_WAVE, freq - capture_base_freq, 1, 0)
self.analog_fm_deemph_0_0_0 = analog.fm_deemph(fs=48000, tau=75e-6)
self.analog_fm_deemph_0_0 = analog.fm_deemph(fs=48000, tau=75e-6)
##################################################
# Connections
##################################################
self.msg_connect((self.gr_rds_decoder_0, 'out'),
(self.gr_rds_parser_0, 'in'))
self.msg_connect((self.gr_rds_parser_0, 'out'),
(self.gr_rds_panel_0, 'in'))
self.connect((self.analog_fm_deemph_0_0, 0),
(self.blocks_multiply_const_vxx_0_0, 0))
self.connect((self.analog_fm_deemph_0_0_0, 0),
(self.blocks_multiply_const_vxx_0, 0))
self.connect((self.analog_sig_source_x_0, 0),
(self.blocks_multiply_xx_0, 1))
self.connect((self.analog_wfm_rcv_0, 0),
(self.freq_xlating_fir_filter_xxx_1_0, 0))
self.connect((self.analog_wfm_rcv_0, 0),
(self.pfb_arb_resampler_xxx_1, 0))
self.connect((self.analog_wfm_rcv_0, 0), (self.wxgui_fftsink2_0_0, 0))
self.connect((self.analog_wfm_rcv_0, 0),
(self.wxgui_waterfallsink2_0, 0))
self.connect((self.blocks_add_xx_0, 0),
(self.analog_fm_deemph_0_0_0, 0))
self.connect((self.blocks_complex_to_real_0, 0),
(self.blocks_add_xx_0, 1))
self.connect((self.blocks_complex_to_real_0, 0),
(self.blocks_sub_xx_0, 1))
self.connect((self.blocks_complex_to_real_0, 0),
(self.wxgui_fftsink2_0_0_0_1, 0))
self.connect((self.blocks_file_source_0, 0),
(self.blocks_multiply_xx_0, 0))
self.connect((self.blocks_keep_one_in_n_0, 0),
(self.digital_diff_decoder_bb_0, 0))
self.connect((self.blocks_multiply_const_vxx_0, 0),
(self.audio_sink_0, 0))
self.connect((self.blocks_multiply_const_vxx_0_0, 0),
(self.audio_sink_0, 1))
self.connect((self.blocks_multiply_xx_0, 0),
(self.freq_xlating_fir_filter_xxx_0, 0))
self.connect((self.blocks_multiply_xx_0, 0),
(self.wxgui_fftsink2_1, 0))
self.connect((self.blocks_multiply_xx_0, 0),
(self.wxgui_waterfallsink2_1, 0))
self.connect((self.blocks_sub_xx_0, 0), (self.analog_fm_deemph_0_0, 0))
self.connect((self.digital_diff_decoder_bb_0, 0),
(self.gr_rds_decoder_0, 0))
self.connect((self.digital_psk_demod_0, 0),
(self.blocks_keep_one_in_n_0, 0))
self.connect((self.fir_filter_xxx_1, 0), (self.blocks_add_xx_0, 0))
self.connect((self.fir_filter_xxx_1, 0), (self.blocks_sub_xx_0, 0))
self.connect((self.fir_filter_xxx_1, 0),
(self.wxgui_fftsink2_0_0_0, 0))
self.connect((self.freq_xlating_fir_filter_xxx_0, 0),
(self.analog_wfm_rcv_0, 0))
self.connect((self.freq_xlating_fir_filter_xxx_0, 0),
(self.wxgui_fftsink2_0, 0))
self.connect((self.freq_xlating_fir_filter_xxx_1_0, 0),
(self.pfb_arb_resampler_xxx_0, 0))
self.connect((self.freq_xlating_fir_filter_xxx_2, 0),
(self.blocks_complex_to_real_0, 0))
self.connect((self.pfb_arb_resampler_xxx_0, 0),
(self.root_raised_cosine_filter_0, 0))
self.connect((self.pfb_arb_resampler_xxx_0, 0),
(self.wxgui_fftsink2_0_0_0_1_0_1, 0))
self.connect((self.pfb_arb_resampler_xxx_1, 0),
(self.fir_filter_xxx_1, 0))
self.connect((self.pfb_arb_resampler_xxx_1, 0),
(self.freq_xlating_fir_filter_xxx_2, 0))
self.connect((self.root_raised_cosine_filter_0, 0),
(self.digital_psk_demod_0, 0))
self.connect((self.root_raised_cosine_filter_0, 0),
(self.wxgui_scopesink2_1, 0))
def __init__(self, frame, panel, vbox, argv):
stdgui2.std_top_block.__init__(self, frame, panel, vbox, argv)
parser = OptionParser(option_class=eng_option)
parser.add_option("-a",
"--args",
type="string",
default="",
help="UHD device address args [default=%default]")
parser.add_option("",
"--spec",
type="string",
default=None,
help="Subdevice of UHD device where appropriate")
parser.add_option("-A",
"--antenna",
type="string",
default=None,
help="select Rx Antenna where appropriate")
parser.add_option("-f",
"--freq",
type="eng_float",
default=100.1e6,
help="set frequency to FREQ",
metavar="FREQ")
parser.add_option("-g",
"--gain",
type="eng_float",
default=None,
help="set gain in dB (default is midpoint)")
parser.add_option("-V",
"--volume",
type="eng_float",
default=None,
help="set volume (default is midpoint)")
parser.add_option(
"-O",
"--audio-output",
type="string",
default="default",
help="pcm device name. E.g., hw:0,0 or surround51 or /dev/dsp")
parser.add_option("",
"--freq-min",
type="eng_float",
default=87.9e6,
help="Set a minimum frequency [default=%default]")
parser.add_option("",
"--freq-max",
type="eng_float",
default=108.1e6,
help="Set a maximum frequency [default=%default]")
(options, args) = parser.parse_args()
if len(args) != 0:
parser.print_help()
sys.exit(1)
self.frame = frame
self.panel = panel
self.vol = 0
self.state = "FREQ"
self.freq = 0
self.fm_freq_min = options.freq_min
self.fm_freq_max = options.freq_max
# build graph
self.u = uhd.usrp_source(device_addr=options.args,
stream_args=uhd.stream_args('fc32'))
# Set the subdevice spec
if (options.spec):
self.u.set_subdev_spec(options.spec, 0)
# Set the antenna
if (options.antenna):
self.u.set_antenna(options.antenna, 0)
usrp_rate = 320e3
demod_rate = 320e3
audio_rate = 32e3
sca_demod_rate = 64e3
audio_decim = int(demod_rate / audio_rate)
sca_chanfilt_decim = int(demod_rate / sca_demod_rate)
self.u.set_samp_rate(usrp_rate)
dev_rate = self.u.get_samp_rate()
nfilts = 32
chan_coeffs = filter.optfir.low_pass(
nfilts, # gain
nfilts * usrp_rate, # sampling rate
100e3, # passband cutoff
140e3, # stopband cutoff
0.1, # passband ripple
60) # stopband attenuation
rrate = usrp_rate / dev_rate
self.chan_filt = filter.pfb.arb_resampler_ccf(rrate, chan_coeffs,
nfilts)
#Create demodulator block for Main FM Channel
max_dev = 75e3
fm_demod_gain = demod_rate / (2 * math.pi * max_dev)
self.fm_demod = analog.quadrature_demod_cf(fm_demod_gain)
# Note - deemphasis is not applied to the Main FM Channel as
# main audio is not decoded
# SCA Devation is 10% of carrier but some references say 20%
# if mono with one SCA (6 KHz seems typical)
max_sca_dev = 6e3
# Create filter to get SCA channel we want
sca_chan_coeffs = filter.firdes.low_pass(
1.0, # gain
demod_rate, # sampling rate
max_sca_dev, # cutoff freq
max_sca_dev / 3, # trans. band
filter.firdes.WIN_HANN) # filter type
self.ddc = filter.freq_xlating_fir_filter_fcf(
sca_chanfilt_decim, # decim rate
sca_chan_coeffs, # taps
0, # freq translation amount (Gets set by the UI)
demod_rate) # input sample rate
#Create demodulator block for SCA Channel
sca_demod_gain = sca_demod_rate / (2 * math.pi * max_sca_dev)
self.fm_demod_sca = analog.quadrature_demod_cf(sca_demod_gain)
# SCA analog audio is bandwidth limited to 5 KHz
max_sca_audio_freq = 5.0e3
# SCA analog deephasis is 150 uS (75 uS may be used)
sca_tau = 150e-6
# compute FIR filter taps for SCA audio filter
audio_coeffs = filter.firdes.low_pass(
1.0, # gain
sca_demod_rate, # sampling rate
max_sca_audio_freq, # cutoff freq
max_sca_audio_freq / 2.5, # trans. band
filter.firdes.WIN_HAMMING)
# input: float; output: float
self.audio_filter = filter.fir_filter_fff(audio_decim, audio_coeffs)
# Create deemphasis block that is applied after SCA demodulation
self.deemph = analog.fm_deemph(audio_rate, sca_tau)
self.volume_control = blocks.multiply_const_ff(self.vol)
# sound card as final sink
self.audio_sink = audio.sink(int(audio_rate), options.audio_output,
False) # ok_to_block
# now wire it all together
self.connect(self.u, self.chan_filt, self.fm_demod, self.ddc,
self.fm_demod_sca)
self.connect(self.fm_demod_sca, self.audio_filter, self.deemph,
self.volume_control, self.audio_sink)
self._build_gui(vbox, usrp_rate, demod_rate, sca_demod_rate,
audio_rate)
if options.gain is None:
# if no gain was specified, use the mid-point in dB
g = self.u.get_gain_range()
options.gain = float(g.start() + g.stop()) / 2
if options.volume is None:
g = self.volume_range()
options.volume = float(g[0] + g[1]) / 2
frange = self.u.get_freq_range()
if (frange.start() > self.fm_freq_max
or frange.stop() < self.fm_freq_min):
sys.stderr.write(
"Radio does not support required frequency range.\n")
sys.exit(1)
if (options.freq < self.fm_freq_min
or options.freq > self.fm_freq_max):
sys.stderr.write(
"Requested frequency is outside of required frequency range.\n"
)
sys.exit(1)
# set initial values
self.set_gain(options.gain)
self.set_vol(options.volume)
if not (self.set_freq(options.freq)):
self._set_status_msg("Failed to set initial frequency")
self.set_sca_freq(67000) # A common SCA Frequency
def __init__(self):
grc_wxgui.top_block_gui.__init__(self, title="FM Stereo Receiver")
##################################################
# Variables
##################################################
self.smux_filt_samprate = smux_filt_samprate = 256e3
self.smux_decim = smux_decim = 8
self.samp_rate = samp_rate = 2.048e6
self.right_gain = right_gain = 3
self.left_gain = left_gain = 3
self.bpf_base = bpf_base = 23e3
self.RF_Gain = RF_Gain = 45
self.CF = CF = 99.3e6
##################################################
# Blocks
##################################################
self._samp_rate_text_box = forms.text_box(
parent=self.GetWin(),
value=self.samp_rate,
callback=self.set_samp_rate,
label="Sample Rate: 1.024M, 1.4M, 1.8M, 1.92M, 2.048M, 2.4M & 2. 56M",
converter=forms.float_converter(),
)
self.GridAdd(self._samp_rate_text_box, 1, 0, 1, 1)
_right_gain_sizer = wx.BoxSizer(wx.VERTICAL)
self._right_gain_text_box = forms.text_box(
parent=self.GetWin(),
sizer=_right_gain_sizer,
value=self.right_gain,
callback=self.set_right_gain,
label="R Audio Gain",
converter=forms.float_converter(),
proportion=0,
)
self._right_gain_slider = forms.slider(
parent=self.GetWin(),
sizer=_right_gain_sizer,
value=self.right_gain,
callback=self.set_right_gain,
minimum=0,
maximum=5,
num_steps=100,
style=wx.SL_HORIZONTAL,
cast=float,
proportion=1,
)
self.GridAdd(_right_gain_sizer, 0, 1, 1, 1)
self.notebook_0 = self.notebook_0 = wx.Notebook(self.GetWin(), style=wx.NB_TOP)
self.notebook_0.AddPage(grc_wxgui.Panel(self.notebook_0), "BB Spectrum")
self.notebook_0.AddPage(grc_wxgui.Panel(self.notebook_0), "Demod Spectrum")
self.notebook_0.AddPage(grc_wxgui.Panel(self.notebook_0), "Stereo Spectrum")
self.notebook_0.AddPage(grc_wxgui.Panel(self.notebook_0), "Stereo Signal")
self.GridAdd(self.notebook_0, 2, 0, 1, 2)
_left_gain_sizer = wx.BoxSizer(wx.VERTICAL)
self._left_gain_text_box = forms.text_box(
parent=self.GetWin(),
sizer=_left_gain_sizer,
value=self.left_gain,
callback=self.set_left_gain,
label="L Audio Gain",
converter=forms.float_converter(),
proportion=0,
)
self._left_gain_slider = forms.slider(
parent=self.GetWin(),
sizer=_left_gain_sizer,
value=self.left_gain,
callback=self.set_left_gain,
minimum=0,
maximum=5,
num_steps=100,
style=wx.SL_HORIZONTAL,
cast=float,
proportion=1,
)
self.GridAdd(_left_gain_sizer, 0, 0, 1, 1)
_RF_Gain_sizer = wx.BoxSizer(wx.VERTICAL)
self._RF_Gain_text_box = forms.text_box(
parent=self.GetWin(),
sizer=_RF_Gain_sizer,
value=self.RF_Gain,
callback=self.set_RF_Gain,
label="RF Gain",
converter=forms.float_converter(),
proportion=0,
)
self._RF_Gain_slider = forms.slider(
parent=self.GetWin(),
sizer=_RF_Gain_sizer,
value=self.RF_Gain,
callback=self.set_RF_Gain,
minimum=0,
maximum=100,
num_steps=45,
style=wx.SL_HORIZONTAL,
cast=float,
proportion=1,
)
self.GridAdd(_RF_Gain_sizer, 1, 1, 1, 1)
self.wxgui_waterfallsink2_0 = waterfallsink2.waterfall_sink_c(
self.notebook_0.GetPage(0).GetWin(),
baseband_freq=0,
dynamic_range=100,
ref_level=0,
ref_scale=2.0,
sample_rate=samp_rate,
fft_size=512,
fft_rate=15,
average=False,
avg_alpha=None,
title="Baseband Waterfall",
size=(800,100),
)
self.notebook_0.GetPage(0).GridAdd(self.wxgui_waterfallsink2_0.win, 3, 0, 1, 2)
self.wxgui_scopesink2_0 = scopesink2.scope_sink_f(
self.notebook_0.GetPage(3).GetWin(),
title="Scope Plot",
sample_rate=32e3,
v_scale=0,
v_offset=0,
t_scale=0,
ac_couple=False,
xy_mode=False,
num_inputs=2,
trig_mode=wxgui.TRIG_MODE_AUTO,
y_axis_label="Counts",
size=(800,500),
)
self.notebook_0.GetPage(3).Add(self.wxgui_scopesink2_0.win)
self.wxgui_fftsink2_0_1 = fftsink2.fft_sink_f(
self.notebook_0.GetPage(2).GetWin(),
baseband_freq=0,
y_per_div=10,
y_divs=10,
ref_level=0,
ref_scale=2.0,
sample_rate=32e3,
fft_size=1024,
fft_rate=15,
average=False,
avg_alpha=None,
title="Difference FFT ",
peak_hold=False,
)
self.notebook_0.GetPage(2).Add(self.wxgui_fftsink2_0_1.win)
self.wxgui_fftsink2_0_0_0 = fftsink2.fft_sink_f(
self.notebook_0.GetPage(1).GetWin(),
baseband_freq=0,
y_per_div=10,
y_divs=10,
ref_level=0,
ref_scale=2.0,
sample_rate=samp_rate/8,
fft_size=1024,
fft_rate=15,
average=False,
avg_alpha=None,
title="Demodulated FFT",
peak_hold=False,
size=(800,800),
)
self.notebook_0.GetPage(1).Add(self.wxgui_fftsink2_0_0_0.win)
self.wxgui_fftsink2_0_0 = fftsink2.fft_sink_c(
self.notebook_0.GetPage(0).GetWin(),
baseband_freq=0,
y_per_div=10,
y_divs=10,
ref_level=0,
ref_scale=2.0,
sample_rate=samp_rate,
fft_size=1024,
fft_rate=15,
average=False,
avg_alpha=None,
title="Baseband FFT",
peak_hold=False,
size=(800,100),
)
self.notebook_0.GetPage(0).GridAdd(self.wxgui_fftsink2_0_0.win, 2, 0, 1, 2)
self.wxgui_fftsink2_0 = fftsink2.fft_sink_f(
self.notebook_0.GetPage(2).GetWin(),
baseband_freq=0,
y_per_div=10,
y_divs=10,
ref_level=0,
ref_scale=2.0,
sample_rate=32e3,
fft_size=1024,
fft_rate=15,
average=False,
avg_alpha=None,
title="Sum FFT",
peak_hold=False,
)
self.notebook_0.GetPage(2).Add(self.wxgui_fftsink2_0.win)
self.rfgain = blocks.multiply_const_vcc((RF_Gain, ))
self.low_pass_filter_1_0 = filter.fir_filter_fff(smux_decim, firdes.low_pass(
1, smux_filt_samprate, 15e3, 500, firdes.WIN_HAMMING, 1))
self.low_pass_filter_0 = filter.fir_filter_ccf(2, firdes.low_pass(
2, samp_rate/4, 100e3, 500, firdes.WIN_KAISER, 6.76))
self.iir_filter_xxx_0 = filter.iir_filter_ccf((-0.00266, 0.00504, -0.00309, -0.00136, 0.00663, -0.01052, 0.01103, -0.00731, 0.00016, 0.00800, -0.01396, 0.01490, -0.00971, -0.00035, 0.01173, -0.01979, 0.02054, -0.01240, -0.00273, 0.01960, -0.03122, 0.03124, -0.01669, -0.01017, 0.04137, -0.06448, 0.06476, -0.02634, -0.07449, 0.33571, -0.00000, -0.33571, 0.07449, 0.02634, -0.06476, 0.06448, -0.04137, 0.01017, 0.01669, -0.03124, 0.03122, -0.01960, 0.00273, 0.01240, -0.02054, 0.01979, -0.01173, 0.00035, 0.00971, -0.01490, 0.01396, -0.00800, -0.00016, 0.00731, -0.01103, 0.01052, -0.00663, 0.00136, 0.00309, -0.00504, 0.00266
), (1 , ), False)
self.fir_filter_xxx_0_0 = filter.fir_filter_ccf(4, (1,1,1,1))
self.fir_filter_xxx_0_0.declare_sample_delay(0)
self.blocks_throttle_0 = blocks.throttle(gr.sizeof_gr_complex*1, samp_rate,True)
self.blocks_sub_xx_0 = blocks.sub_ff(1)
self.blocks_multiply_xx_1_0 = blocks.multiply_vcc(1)
self.blocks_multiply_xx_0 = blocks.multiply_vff(1)
self.blocks_multiply_const_vxx_0_0 = blocks.multiply_const_vff((right_gain, ))
self.blocks_multiply_const_vxx_0 = blocks.multiply_const_vff((left_gain, ))
self.blocks_multiply_conjugate_cc_0 = blocks.multiply_conjugate_cc(1)
self.blocks_float_to_complex_0 = blocks.float_to_complex(1)
self.blocks_file_source_0_0 = blocks.file_source(gr.sizeof_gr_complex*1, "/Users/bretttt/iCloud_drive/16S/engs110/project/radio_dat/IQ_Data_STEREO1", True)
self.blocks_divide_xx_1 = blocks.divide_cc(1)
self.blocks_delay_2 = blocks.delay(gr.sizeof_gr_complex*1, 30)
self.blocks_complex_to_real_0 = blocks.complex_to_real(1)
self.blocks_complex_to_mag_0 = blocks.complex_to_mag(1)
self.blocks_complex_to_imag_0 = blocks.complex_to_imag(1)
self.blocks_add_xx_0 = blocks.add_vff(1)
self.blocks_add_const_vxx_0 = blocks.add_const_vcc((0.1, ))
self.baseband_LPF = filter.fir_filter_fff(smux_decim, firdes.low_pass(
1, smux_filt_samprate, 15e3, 500, firdes.WIN_KAISER, 6.76))
self.band_pass_filter_0_0_0 = filter.fir_filter_fcc(1, firdes.complex_band_pass(
1, smux_filt_samprate, 18000, 20000, 1000, firdes.WIN_KAISER, 1))
self.band_pass_filter_0 = filter.fir_filter_fff(1, firdes.band_pass(
1, smux_filt_samprate, bpf_base, bpf_base+30e3, 500, firdes.WIN_KAISER, 6.76))
self.audio_sink_0_0_0_0 = audio.sink(32000, "", True)
self.analog_pll_refout_cc_0_0 = analog.pll_refout_cc(3.14/100, 0.152*3.14, 0.144*3.14)
self.analog_fm_deemph_0_0 = analog.fm_deemph(fs=samp_rate/8, tau=75e-6)
self.analog_fm_deemph_0 = analog.fm_deemph(fs=samp_rate/8, tau=75e-6)
self.analog_const_source_x_0 = analog.sig_source_f(0, analog.GR_CONST_WAVE, 0, 0, 0)
_CF_sizer = wx.BoxSizer(wx.VERTICAL)
self._CF_text_box = forms.text_box(
parent=self.GetWin(),
sizer=_CF_sizer,
value=self.CF,
callback=self.set_CF,
label="Center Frequency",
converter=forms.float_converter(),
proportion=0,
)
self._CF_slider = forms.slider(
parent=self.GetWin(),
sizer=_CF_sizer,
value=self.CF,
callback=self.set_CF,
minimum=80e6,
maximum=108e6,
num_steps=280,
style=wx.SL_HORIZONTAL,
cast=float,
proportion=1,
)
self.GridAdd(_CF_sizer, 3, 0, 1, 2)
##################################################
# Connections
##################################################
self.connect((self.analog_const_source_x_0, 0), (self.blocks_float_to_complex_0, 1))
self.connect((self.analog_fm_deemph_0, 0), (self.audio_sink_0_0_0_0, 0))
self.connect((self.analog_fm_deemph_0_0, 0), (self.audio_sink_0_0_0_0, 1))
self.connect((self.analog_pll_refout_cc_0_0, 0), (self.blocks_multiply_xx_1_0, 0))
self.connect((self.analog_pll_refout_cc_0_0, 0), (self.blocks_multiply_xx_1_0, 1))
self.connect((self.band_pass_filter_0, 0), (self.blocks_multiply_xx_0, 0))
self.connect((self.band_pass_filter_0_0_0, 0), (self.analog_pll_refout_cc_0_0, 0))
self.connect((self.baseband_LPF, 0), (self.blocks_add_xx_0, 0))
self.connect((self.baseband_LPF, 0), (self.blocks_sub_xx_0, 0))
self.connect((self.blocks_add_const_vxx_0, 0), (self.blocks_divide_xx_1, 1))
self.connect((self.blocks_add_xx_0, 0), (self.blocks_multiply_const_vxx_0, 0))
self.connect((self.blocks_complex_to_imag_0, 0), (self.band_pass_filter_0, 0))
self.connect((self.blocks_complex_to_imag_0, 0), (self.band_pass_filter_0_0_0, 0))
self.connect((self.blocks_complex_to_imag_0, 0), (self.baseband_LPF, 0))
self.connect((self.blocks_complex_to_imag_0, 0), (self.wxgui_fftsink2_0_0_0, 0))
self.connect((self.blocks_complex_to_mag_0, 0), (self.blocks_float_to_complex_0, 0))
self.connect((self.blocks_complex_to_real_0, 0), (self.blocks_multiply_xx_0, 1))
self.connect((self.blocks_delay_2, 0), (self.blocks_multiply_conjugate_cc_0, 1))
self.connect((self.blocks_divide_xx_1, 0), (self.blocks_delay_2, 0))
self.connect((self.blocks_divide_xx_1, 0), (self.iir_filter_xxx_0, 0))
self.connect((self.blocks_file_source_0_0, 0), (self.rfgain, 0))
self.connect((self.blocks_float_to_complex_0, 0), (self.blocks_add_const_vxx_0, 0))
self.connect((self.blocks_multiply_conjugate_cc_0, 0), (self.blocks_complex_to_imag_0, 0))
self.connect((self.blocks_multiply_const_vxx_0, 0), (self.analog_fm_deemph_0, 0))
self.connect((self.blocks_multiply_const_vxx_0, 0), (self.wxgui_fftsink2_0, 0))
self.connect((self.blocks_multiply_const_vxx_0, 0), (self.wxgui_scopesink2_0, 0))
self.connect((self.blocks_multiply_const_vxx_0_0, 0), (self.analog_fm_deemph_0_0, 0))
self.connect((self.blocks_multiply_const_vxx_0_0, 0), (self.wxgui_fftsink2_0_1, 0))
self.connect((self.blocks_multiply_const_vxx_0_0, 0), (self.wxgui_scopesink2_0, 1))
self.connect((self.blocks_multiply_xx_0, 0), (self.low_pass_filter_1_0, 0))
self.connect((self.blocks_multiply_xx_1_0, 0), (self.blocks_complex_to_real_0, 0))
self.connect((self.blocks_sub_xx_0, 0), (self.blocks_multiply_const_vxx_0_0, 0))
self.connect((self.blocks_throttle_0, 0), (self.fir_filter_xxx_0_0, 0))
self.connect((self.blocks_throttle_0, 0), (self.wxgui_fftsink2_0_0, 0))
self.connect((self.blocks_throttle_0, 0), (self.wxgui_waterfallsink2_0, 0))
self.connect((self.fir_filter_xxx_0_0, 0), (self.low_pass_filter_0, 0))
self.connect((self.iir_filter_xxx_0, 0), (self.blocks_multiply_conjugate_cc_0, 0))
self.connect((self.low_pass_filter_0, 0), (self.blocks_complex_to_mag_0, 0))
self.connect((self.low_pass_filter_0, 0), (self.blocks_divide_xx_1, 0))
self.connect((self.low_pass_filter_1_0, 0), (self.blocks_add_xx_0, 1))
self.connect((self.low_pass_filter_1_0, 0), (self.blocks_sub_xx_0, 1))
self.connect((self.rfgain, 0), (self.blocks_throttle_0, 0))
def __init__(self, audio_rate=48000, samp_rate=512e3):
gr.hier_block2.__init__(
self,
"FM audio demodulator",
gr.io_signaturev(
2, 2, [gr.sizeof_gr_complex * 1, gr.sizeof_gr_complex * 1]),
gr.io_signaturev(
3, 3,
[gr.sizeof_char * 1, gr.sizeof_float * 1, gr.sizeof_float * 1
]),
)
##################################################
# Parameters
##################################################
self.audio_rate = audio_rate
self.samp_rate = samp_rate
##################################################
# Variables
##################################################
self.thres_lo = thres_lo = 2
self.thres_hi = thres_hi = 5
self.avg_len = avg_len = int(1e6)
##################################################
# Blocks
##################################################
self.rational_resampler_xxx_0_0 = filter.rational_resampler_fff(
interpolation=int(audio_rate),
decimation=int(samp_rate),
taps=None,
fractional_bw=None,
)
self.rational_resampler_xxx_0 = filter.rational_resampler_fff(
interpolation=int(audio_rate),
decimation=int(samp_rate),
taps=None,
fractional_bw=None,
)
self.low_pass_filter_1_0 = filter.fir_filter_fff(
1,
firdes.low_pass(1, audio_rate, 15e3, 1.5e3, firdes.WIN_HAMMING,
6.76))
self.low_pass_filter_1 = filter.fir_filter_fff(
1,
firdes.low_pass(1, audio_rate, 15e3, 1.5e3, firdes.WIN_HAMMING,
6.76))
self.blocks_threshold_ff_0 = blocks.threshold_ff(thres_hi, thres_hi, 0)
self.blocks_sub_xx_0 = blocks.sub_ff(1)
self.blocks_multiply_xx_2 = blocks.multiply_vff(1)
self.blocks_multiply_xx_1 = blocks.multiply_vff(1)
self.blocks_multiply_xx_0 = blocks.multiply_vcc(1)
self.blocks_moving_average_xx_0_0 = blocks.moving_average_ff(
avg_len, 1.0, 4000)
self.blocks_moving_average_xx_0 = blocks.moving_average_ff(
avg_len, 1.0, 4000)
self.blocks_float_to_char_0 = blocks.float_to_char(1, 1)
self.blocks_divide_xx_0 = blocks.divide_ff(1)
self.blocks_complex_to_real_0_0 = blocks.complex_to_real(1)
self.blocks_complex_to_real_0 = blocks.complex_to_real(1)
self.blocks_add_xx_0 = blocks.add_vff(1)
self.blocks_add_const_vxx_0 = blocks.add_const_vff((-1, ))
self.blocks_abs_xx_1 = blocks.abs_ff(1)
self.blocks_abs_xx_0_0 = blocks.abs_ff(1)
self.blocks_abs_xx_0 = blocks.abs_ff(1)
self.analog_fm_deemph_0_0_0_0 = analog.fm_deemph(fs=audio_rate,
tau=50e-6)
self.analog_fm_deemph_0_0_0 = analog.fm_deemph(fs=audio_rate,
tau=50e-6)
##################################################
# Connections
##################################################
self.connect((self.analog_fm_deemph_0_0_0, 0), (self, 1))
self.connect((self.analog_fm_deemph_0_0_0_0, 0), (self, 2))
self.connect((self.blocks_abs_xx_0, 0),
(self.blocks_moving_average_xx_0, 0))
self.connect((self.blocks_abs_xx_0_0, 0),
(self.blocks_moving_average_xx_0_0, 0))
self.connect((self.blocks_abs_xx_1, 0),
(self.blocks_float_to_char_0, 0))
self.connect((self.blocks_abs_xx_1, 0), (self.blocks_multiply_xx_1, 0))
self.connect((self.blocks_add_const_vxx_0, 0),
(self.blocks_abs_xx_1, 0))
self.connect((self.blocks_add_xx_0, 0),
(self.analog_fm_deemph_0_0_0, 0))
self.connect((self.blocks_complex_to_real_0, 0),
(self.rational_resampler_xxx_0, 0))
self.connect((self.blocks_complex_to_real_0_0, 0),
(self.rational_resampler_xxx_0_0, 0))
self.connect((self.blocks_divide_xx_0, 0),
(self.blocks_multiply_xx_1, 1))
self.connect((self.blocks_divide_xx_0, 0),
(self.blocks_threshold_ff_0, 0))
self.connect((self.blocks_float_to_char_0, 0), (self, 0))
self.connect((self.blocks_moving_average_xx_0, 0),
(self.blocks_divide_xx_0, 0))
self.connect((self.blocks_moving_average_xx_0_0, 0),
(self.blocks_divide_xx_0, 1))
self.connect((self.blocks_multiply_xx_0, 0),
(self.blocks_complex_to_real_0_0, 0))
self.connect((self.blocks_multiply_xx_1, 0),
(self.blocks_multiply_xx_2, 1))
self.connect((self.blocks_multiply_xx_2, 0), (self.blocks_add_xx_0, 1))
self.connect((self.blocks_multiply_xx_2, 0), (self.blocks_sub_xx_0, 1))
self.connect((self.blocks_sub_xx_0, 0),
(self.analog_fm_deemph_0_0_0_0, 0))
self.connect((self.blocks_threshold_ff_0, 0),
(self.blocks_add_const_vxx_0, 0))
self.connect((self.low_pass_filter_1, 0), (self.blocks_abs_xx_0_0, 0))
self.connect((self.low_pass_filter_1, 0),
(self.blocks_multiply_xx_2, 0))
self.connect((self.low_pass_filter_1_0, 0), (self.blocks_abs_xx_0, 0))
self.connect((self.low_pass_filter_1_0, 0), (self.blocks_add_xx_0, 0))
self.connect((self.low_pass_filter_1_0, 0), (self.blocks_sub_xx_0, 0))
self.connect((self, 0), (self.blocks_complex_to_real_0, 0))
self.connect((self, 0), (self.blocks_multiply_xx_0, 0))
self.connect((self, 1), (self.blocks_multiply_xx_0, 1))
self.connect((self.rational_resampler_xxx_0, 0),
(self.low_pass_filter_1_0, 0))
self.connect((self.rational_resampler_xxx_0_0, 0),
(self.low_pass_filter_1, 0))
def __init__(self):
grc_wxgui.top_block_gui.__init__(self, title="B200 VHF NBFM transceiver")
_icon_path = "/usr/share/icons/hicolor/32x32/apps/gnuradio-grc.png"
self.SetIcon(wx.Icon(_icon_path, wx.BITMAP_TYPE_ANY))
##################################################
# Variables
##################################################
self.tx_rx_choice = tx_rx_choice = 1
self.tx_gain = tx_gain = .615
self.tune_minus_20 = tune_minus_20 = 0
self.tune_minus_10 = tune_minus_10 = 0
self.tune_20 = tune_20 = 0
self.tune_10 = tune_10 = 0
self.tone = tone = 100
self.squelch = squelch = -70.32
self.samp_rate = samp_rate = 4000000
self.rx_offset = rx_offset = 0
self.rit_tune = rit_tune = 0
self.offset = offset = 600000
self.chooser_fm = chooser_fm = 147.34e6
self.audio_gain = audio_gain = .7
##################################################
# Blocks
##################################################
self._tx_rx_choice_chooser = forms.button(
parent=self.GetWin(),
value=self.tx_rx_choice,
callback=self.set_tx_rx_choice,
label="TX-RX",
choices=[0, 1],
labels=['TX', 'RX'],
)
self.GridAdd(self._tx_rx_choice_chooser, 0, 3, 1, 1)
_tx_gain_sizer = wx.BoxSizer(wx.VERTICAL)
self._tx_gain_text_box = forms.text_box(
parent=self.GetWin(),
sizer=_tx_gain_sizer,
value=self.tx_gain,
callback=self.set_tx_gain,
label="TX Gain: 144= .6, 220= .70, 440= .72",
converter=forms.float_converter(),
proportion=0,
)
self._tx_gain_slider = forms.slider(
parent=self.GetWin(),
sizer=_tx_gain_sizer,
value=self.tx_gain,
callback=self.set_tx_gain,
minimum=.6,
maximum=.75,
num_steps=1000,
style=wx.SL_HORIZONTAL,
cast=float,
proportion=1,
)
self.Add(_tx_gain_sizer)
self._tune_minus_20_chooser = forms.button(
parent=self.GetWin(),
value=self.tune_minus_20,
callback=self.set_tune_minus_20,
label="-20 Tune",
choices=[0, 20e3, 40e3, 60e3, 80e3, 100e3, 120e3, 140e3, 0],
labels=[0, -20, -40, -60, -80, -100, -120, -140, 0],
)
self.GridAdd(self._tune_minus_20_chooser, 0, 1, 1, 1)
self._tune_minus_10_chooser = forms.button(
parent=self.GetWin(),
value=self.tune_minus_10,
callback=self.set_tune_minus_10,
label="-10 Tune",
choices=[0,-10e3, -20e3, -30e3, -40e3,-50e3,0],
labels=[0, -10, -20, -30, -40,-50,0],
)
self.GridAdd(self._tune_minus_10_chooser, 1, 1, 1, 1)
self._tune_20_chooser = forms.button(
parent=self.GetWin(),
value=self.tune_20,
callback=self.set_tune_20,
label="+20 Tune",
choices=[0, 20e3, 40e3, 60e3, 80e3, 100e3, 120e3, 140e3,0],
labels=[0, '+20', '+40', '+60', '+80', '+100', '+120', '+140','0'],
)
self.GridAdd(self._tune_20_chooser, 0, 0, 1, 1)
self._tune_10_chooser = forms.button(
parent=self.GetWin(),
value=self.tune_10,
callback=self.set_tune_10,
label="+10 Tune",
choices=[0,10e3, 20e3, 30e3, 40e3,50e3,0],
labels=[0,'+10', '+20', '+30', '+40','+50','0'],
)
self.GridAdd(self._tune_10_chooser, 1, 0, 1, 1)
self._tone_chooser = forms.radio_buttons(
parent=self.GetWin(),
value=self.tone,
callback=self.set_tone,
label="CTCSS",
choices=[100,103.5, 110.9, 118.8, 123.0,127.3,179.5],
labels=['100', '103.5', '110.9','118.8', '123.0', '127.3','179.5'],
style=wx.RA_HORIZONTAL,
)
self.GridAdd(self._tone_chooser, 0, 5, 1, 1)
_squelch_sizer = wx.BoxSizer(wx.VERTICAL)
self._squelch_text_box = forms.text_box(
parent=self.GetWin(),
sizer=_squelch_sizer,
value=self.squelch,
callback=self.set_squelch,
label="Squelch",
converter=forms.float_converter(),
proportion=0,
)
self._squelch_slider = forms.slider(
parent=self.GetWin(),
sizer=_squelch_sizer,
value=self.squelch,
callback=self.set_squelch,
minimum=-95,
maximum=-55,
num_steps=1000,
style=wx.SL_HORIZONTAL,
cast=float,
proportion=1,
)
self.GridAdd(_squelch_sizer, 0, 6, 1, 1)
self._rx_offset_chooser = forms.radio_buttons(
parent=self.GetWin(),
value=self.rx_offset,
callback=self.set_rx_offset,
label="RX offset",
choices=[0, 600000, -600000,5e6],
labels=['0', '+', '-','+5M'],
style=wx.RA_HORIZONTAL,
)
self.GridAdd(self._rx_offset_chooser, 1, 6, 1, 1)
_rit_tune_sizer = wx.BoxSizer(wx.VERTICAL)
self._rit_tune_text_box = forms.text_box(
parent=self.GetWin(),
sizer=_rit_tune_sizer,
value=self.rit_tune,
callback=self.set_rit_tune,
label="RIT",
converter=forms.float_converter(),
proportion=0,
)
self._rit_tune_slider = forms.slider(
parent=self.GetWin(),
sizer=_rit_tune_sizer,
value=self.rit_tune,
callback=self.set_rit_tune,
minimum=-30e3,
maximum=+30e3,
num_steps=1000,
style=wx.SL_HORIZONTAL,
cast=float,
proportion=1,
)
self.GridAdd(_rit_tune_sizer, 1, 2, 1, 3)
self._offset_chooser = forms.radio_buttons(
parent=self.GetWin(),
value=self.offset,
callback=self.set_offset,
label="TX offset",
choices=[600000, -600000, 0,5e6],
labels=['+', '-', '0','5MHz'],
style=wx.RA_HORIZONTAL,
)
self.GridAdd(self._offset_chooser, 0, 4, 1, 1)
self._chooser_fm_chooser = forms.radio_buttons(
parent=self.GetWin(),
value=self.chooser_fm,
callback=self.set_chooser_fm,
label="Preset",
choices=[145.13e6,145.33e6, 145.88e6, 146.46e6, 146.49e6, 146.52e6,146.58e6, 146.64e6,146.74e6, 146.82e6, 146.86e6, 146.92e6, 146.96e6, 147.0e6,147.06e6, 147.08e6, 147.20e6, 147.22e6, 147.34e6, 223.5e6,441.825e6, 432.25e6],
labels=[145.13,145.33, 145.88, 146.46, 146.49, 146.52, 146.58, 146.64, 146.74, 146.82, 146.860, 146.92, 146.96, 147.00, 147.06, 147.08,147.200, 147.220, 147.34, 223.5,441.825, 432.25],
style=wx.RA_HORIZONTAL,
)
self.Add(self._chooser_fm_chooser)
_audio_gain_sizer = wx.BoxSizer(wx.VERTICAL)
self._audio_gain_text_box = forms.text_box(
parent=self.GetWin(),
sizer=_audio_gain_sizer,
value=self.audio_gain,
callback=self.set_audio_gain,
label="Audio gain",
converter=forms.float_converter(),
proportion=0,
)
self._audio_gain_slider = forms.slider(
parent=self.GetWin(),
sizer=_audio_gain_sizer,
value=self.audio_gain,
callback=self.set_audio_gain,
minimum=.1,
maximum=4,
num_steps=1000,
style=wx.SL_HORIZONTAL,
cast=float,
proportion=1,
)
self.GridAdd(_audio_gain_sizer, 0, 2, 1, 1)
self.wxgui_fftsink2_0 = fftsink2.fft_sink_c(
self.GetWin(),
baseband_freq=(((((chooser_fm+tune_20)-tune_minus_20)+tune_10)+tune_minus_10)+rx_offset),
y_per_div=5,
y_divs=16,
ref_level=-55,
ref_scale=2.0,
sample_rate=samp_rate/2,
fft_size=1024*0+2048*0+4096,
fft_rate=12,
average=True,
avg_alpha=.4,
title="RF Bandpass",
peak_hold=False,
)
self.GridAdd(self.wxgui_fftsink2_0.win, 2, 0, 5, 14)
self.uhd_usrp_source_0 = uhd.usrp_source(
",".join(("", "")),
uhd.stream_args(
cpu_format="fc32",
channels=range(1),
),
)
self.uhd_usrp_source_0.set_samp_rate((samp_rate))
self.uhd_usrp_source_0.set_center_freq((((((chooser_fm+tune_20)-tune_minus_20)+tune_10)+tune_minus_10)+rx_offset)-10e3, 0)
self.uhd_usrp_source_0.set_normalized_gain(.520*.8, 0)
self.uhd_usrp_source_0.set_antenna("RX2", 0)
self.uhd_usrp_source_0.set_bandwidth(1.99e6, 0)
self.uhd_usrp_sink_1 = uhd.usrp_sink(
",".join(("", "")),
uhd.stream_args(
cpu_format="fc32",
channels=range(1),
),
)
self.uhd_usrp_sink_1.set_samp_rate(320000)
self.uhd_usrp_sink_1.set_center_freq((((((chooser_fm+offset)+tune_20)-tune_minus_20)+tune_10)+tune_minus_10)+rit_tune, 0)
self.uhd_usrp_sink_1.set_normalized_gain((.83*0+.72)*0+tx_gain, 0)
self.uhd_usrp_sink_1.set_antenna("TX/RX", 0)
self.uhd_usrp_sink_1.set_bandwidth(200000, 0)
self.rational_resampler_xxx_1 = filter.rational_resampler_ccc(
interpolation=32000,
decimation=40000,
taps=None,
fractional_bw=None,
)
self.rational_resampler_xxx_0 = filter.rational_resampler_ccc(
interpolation=samp_rate/2,
decimation=samp_rate,
taps=None,
fractional_bw=None,
)
self.pfb_decimator_ccf_0 = pfb.decimator_ccf(
2,
(firdes.low_pass(.1, (samp_rate), (samp_rate)/4.05,10e3)),
0,
100,
True,
True)
self.pfb_decimator_ccf_0.declare_sample_delay(0)
self.low_pass_filter_1 = filter.fir_filter_fff(1, firdes.low_pass(
1, 32000, 4400, 300, firdes.WIN_HAMMING, 6.76))
self.low_pass_filter_0 = filter.fir_filter_fff(1, firdes.low_pass(
1, 32000, 4500, 600, firdes.WIN_HAMMING, 6.76))
self.high_pass_filter_0 = filter.fir_filter_fff(1, firdes.high_pass(
1, 32000, 300, 100, firdes.WIN_HAMMING, 6.76))
self.freq_xlating_fir_filter_xxx_0 = filter.freq_xlating_fir_filter_ccc(50, (firdes.low_pass(1,samp_rate/2,18e3,600)), 0+rit_tune+10e3, samp_rate/2)
self.blocks_null_source_0 = blocks.null_source(gr.sizeof_gr_complex*1)
self.blocks_multiply_const_vxx_2 = blocks.multiply_const_vcc((.8, ))
self.blocks_multiply_const_vxx_1 = blocks.multiply_const_vff((125, ))
self.blocks_multiply_const_vxx_0 = blocks.multiply_const_vff((audio_gain*tx_rx_choice, ))
self.blocks_add_xx_1 = blocks.add_vff(1)
self.blks2_selector_0_1 = grc_blks2.selector(
item_size=gr.sizeof_gr_complex*1,
num_inputs=2,
num_outputs=1,
input_index=1+(tx_rx_choice),
output_index=0,
)
self.audio_source_1 = audio.source(32000, "", True)
self.audio_sink_0 = audio.sink(32000, "", True)
self.analog_simple_squelch_cc_0 = analog.simple_squelch_cc(squelch, .0001)
self.analog_sig_source_x_0 = analog.sig_source_f(32000, analog.GR_COS_WAVE, tone, .091, 0)
self.analog_nbfm_tx_1 = analog.nbfm_tx(
audio_rate=32000,
quad_rate=320000,
tau=(75e-6)*0+90e-6,
max_dev=5e3,
)
self.analog_nbfm_rx_0 = analog.nbfm_rx(
audio_rate=32000,
quad_rate=32000,
tau=75e-6,
max_dev=5e3,
)
self.analog_fm_preemph_0 = analog.fm_preemph(fs=32e3, tau=75e-6)
self.analog_fm_deemph_0 = analog.fm_deemph(fs=32000, tau=75e-6)
##################################################
# Connections
##################################################
self.connect((self.analog_fm_deemph_0, 0), (self.low_pass_filter_1, 0))
self.connect((self.analog_fm_preemph_0, 0), (self.blocks_add_xx_1, 0))
self.connect((self.analog_nbfm_rx_0, 0), (self.analog_fm_deemph_0, 0))
self.connect((self.analog_nbfm_tx_1, 0), (self.blocks_multiply_const_vxx_2, 0))
self.connect((self.analog_sig_source_x_0, 0), (self.blocks_add_xx_1, 1))
self.connect((self.analog_simple_squelch_cc_0, 0), (self.rational_resampler_xxx_1, 0))
self.connect((self.audio_source_1, 0), (self.blocks_multiply_const_vxx_1, 0))
self.connect((self.blks2_selector_0_1, 0), (self.uhd_usrp_sink_1, 0))
self.connect((self.blocks_add_xx_1, 0), (self.analog_nbfm_tx_1, 0))
self.connect((self.blocks_multiply_const_vxx_0, 0), (self.audio_sink_0, 0))
self.connect((self.blocks_multiply_const_vxx_1, 0), (self.high_pass_filter_0, 0))
self.connect((self.blocks_multiply_const_vxx_2, 0), (self.blks2_selector_0_1, 1))
self.connect((self.blocks_null_source_0, 0), (self.blks2_selector_0_1, 0))
self.connect((self.freq_xlating_fir_filter_xxx_0, 0), (self.analog_simple_squelch_cc_0, 0))
self.connect((self.high_pass_filter_0, 0), (self.low_pass_filter_0, 0))
self.connect((self.low_pass_filter_0, 0), (self.analog_fm_preemph_0, 0))
self.connect((self.low_pass_filter_1, 0), (self.blocks_multiply_const_vxx_0, 0))
self.connect((self.pfb_decimator_ccf_0, 0), (self.wxgui_fftsink2_0, 0))
self.connect((self.rational_resampler_xxx_0, 0), (self.freq_xlating_fir_filter_xxx_0, 0))
self.connect((self.rational_resampler_xxx_1, 0), (self.analog_nbfm_rx_0, 0))
self.connect((self.uhd_usrp_source_0, 0), (self.pfb_decimator_ccf_0, 0))
self.connect((self.uhd_usrp_source_0, 0), (self.rational_resampler_xxx_0, 0))
def __init__(self):
grc_wxgui.top_block_gui.__init__(
self, title="Stereo FM receiver and RDS Decoder")
##################################################
# Variables
##################################################
self.freq_offset = freq_offset = 250000
self.freq = freq = 97e6
self.volume = volume = -3
self.samp_rate = samp_rate = 2000000
self.gain = gain = 20
self.freq_tune = freq_tune = freq - freq_offset
##################################################
# Blocks
##################################################
_volume_sizer = wx.BoxSizer(wx.VERTICAL)
self._volume_text_box = forms.text_box(
parent=self.GetWin(),
sizer=_volume_sizer,
value=self.volume,
callback=self.set_volume,
label='Volume',
converter=forms.float_converter(),
proportion=0,
)
self._volume_slider = forms.slider(
parent=self.GetWin(),
sizer=_volume_sizer,
value=self.volume,
callback=self.set_volume,
minimum=-20,
maximum=10,
num_steps=300,
style=wx.SL_HORIZONTAL,
cast=float,
proportion=1,
)
self.GridAdd(_volume_sizer, 0, 1, 1, 1)
self.nb = self.nb = wx.Notebook(self.GetWin(), style=wx.NB_TOP)
self.nb.AddPage(grc_wxgui.Panel(self.nb), "BB")
self.nb.AddPage(grc_wxgui.Panel(self.nb), "Demod")
self.nb.AddPage(grc_wxgui.Panel(self.nb), "Waterfall")
self.nb.AddPage(grc_wxgui.Panel(self.nb), "L+R")
self.nb.AddPage(grc_wxgui.Panel(self.nb), "L-R")
self.nb.AddPage(grc_wxgui.Panel(self.nb), "RDS")
self.nb.AddPage(grc_wxgui.Panel(self.nb), "Const")
self.GridAdd(self.nb, 2, 0, 1, 2)
_gain_sizer = wx.BoxSizer(wx.VERTICAL)
self._gain_text_box = forms.text_box(
parent=self.GetWin(),
sizer=_gain_sizer,
value=self.gain,
callback=self.set_gain,
label='RF Gain',
converter=forms.float_converter(),
proportion=0,
)
self._gain_slider = forms.slider(
parent=self.GetWin(),
sizer=_gain_sizer,
value=self.gain,
callback=self.set_gain,
minimum=0,
maximum=49.6,
num_steps=124,
style=wx.SL_HORIZONTAL,
cast=float,
proportion=1,
)
self.GridAdd(_gain_sizer, 0, 0, 1, 1)
_freq_sizer = wx.BoxSizer(wx.VERTICAL)
self._freq_text_box = forms.text_box(
parent=self.GetWin(),
sizer=_freq_sizer,
value=self.freq,
callback=self.set_freq,
label='Freq',
converter=forms.float_converter(),
proportion=0,
)
self._freq_slider = forms.slider(
parent=self.GetWin(),
sizer=_freq_sizer,
value=self.freq,
callback=self.set_freq,
minimum=88e6,
maximum=107.9e6,
num_steps=200,
style=wx.SL_HORIZONTAL,
cast=float,
proportion=1,
)
self.GridAdd(_freq_sizer, 1, 0, 1, 2)
self.wxgui_waterfallsink2_0 = waterfallsink2.waterfall_sink_f(
self.nb.GetPage(2).GetWin(),
baseband_freq=0,
dynamic_range=100,
ref_level=0,
ref_scale=2.0,
sample_rate=250000,
fft_size=512,
fft_rate=15,
average=False,
avg_alpha=None,
title='Waterfall Plot',
)
self.nb.GetPage(2).Add(self.wxgui_waterfallsink2_0.win)
self.wxgui_scopesink2_1 = scopesink2.scope_sink_c(
self.nb.GetPage(6).GetWin(),
title='Scope Plot',
sample_rate=2375 * 4,
v_scale=0.4,
v_offset=0,
t_scale=0,
ac_couple=False,
xy_mode=True,
num_inputs=1,
trig_mode=wxgui.TRIG_MODE_AUTO,
y_axis_label='Counts',
)
self.nb.GetPage(6).Add(self.wxgui_scopesink2_1.win)
self.wxgui_fftsink2_0_0_0_1_0_1 = fftsink2.fft_sink_c(
self.nb.GetPage(5).GetWin(),
baseband_freq=0,
y_per_div=10,
y_divs=10,
ref_level=0,
ref_scale=2.0,
sample_rate=19000,
fft_size=1024,
fft_rate=15,
average=False,
avg_alpha=None,
title='RDS',
peak_hold=False,
)
self.nb.GetPage(5).Add(self.wxgui_fftsink2_0_0_0_1_0_1.win)
self.wxgui_fftsink2_0_0_0_1 = fftsink2.fft_sink_f(
self.nb.GetPage(4).GetWin(),
baseband_freq=0,
y_per_div=10,
y_divs=10,
ref_level=0,
ref_scale=2.0,
sample_rate=48000,
fft_size=1024,
fft_rate=15,
average=False,
avg_alpha=None,
title='L-R',
peak_hold=False,
)
self.nb.GetPage(4).Add(self.wxgui_fftsink2_0_0_0_1.win)
self.wxgui_fftsink2_0_0_0 = fftsink2.fft_sink_f(
self.nb.GetPage(3).GetWin(),
baseband_freq=0,
y_per_div=10,
y_divs=10,
ref_level=0,
ref_scale=2.0,
sample_rate=48000,
fft_size=1024,
fft_rate=15,
average=False,
avg_alpha=None,
title='L+R',
peak_hold=False,
)
self.nb.GetPage(3).Add(self.wxgui_fftsink2_0_0_0.win)
self.wxgui_fftsink2_0_0 = fftsink2.fft_sink_f(
self.nb.GetPage(1).GetWin(),
baseband_freq=0,
y_per_div=10,
y_divs=10,
ref_level=0,
ref_scale=2.0,
sample_rate=250000,
fft_size=1024,
fft_rate=15,
average=True,
avg_alpha=0.8,
title='FM Demod',
peak_hold=False,
)
self.nb.GetPage(1).Add(self.wxgui_fftsink2_0_0.win)
self.wxgui_fftsink2_0 = fftsink2.fft_sink_c(
self.nb.GetPage(0).GetWin(),
baseband_freq=0,
y_per_div=10,
y_divs=10,
ref_level=-30,
ref_scale=2.0,
sample_rate=samp_rate,
fft_size=1024,
fft_rate=15,
average=True,
avg_alpha=0.8,
title='Baseband',
peak_hold=False,
)
self.nb.GetPage(0).Add(self.wxgui_fftsink2_0.win)
self.rtlsdr_source_0_0 = osmosdr.source(args="numchan=" + str(1) +
" " + '')
self.rtlsdr_source_0_0.set_sample_rate(samp_rate)
self.rtlsdr_source_0_0.set_center_freq(freq_tune, 0)
self.rtlsdr_source_0_0.set_freq_corr(0, 0)
self.rtlsdr_source_0_0.set_dc_offset_mode(0, 0)
self.rtlsdr_source_0_0.set_iq_balance_mode(0, 0)
self.rtlsdr_source_0_0.set_gain_mode(False, 0)
self.rtlsdr_source_0_0.set_gain(14, 0)
self.rtlsdr_source_0_0.set_if_gain(24, 0)
self.rtlsdr_source_0_0.set_bb_gain(gain, 0)
self.rtlsdr_source_0_0.set_antenna('', 0)
self.rtlsdr_source_0_0.set_bandwidth(0, 0)
self.root_raised_cosine_filter_0 = filter.fir_filter_ccf(
2, firdes.root_raised_cosine(1, 19000, 2375, 1, 100))
self.rftap_rftap_encap_0 = rftap.rftap_encap(3, -1, 'rds')
self.pfb_arb_resampler_xxx_1 = pfb.arb_resampler_fff(240000.0 / 250000,
taps=None,
flt_size=32)
self.pfb_arb_resampler_xxx_1.declare_sample_delay(0)
self.pfb_arb_resampler_xxx_0 = pfb.arb_resampler_ccf(19000 / 250e3,
taps=None,
flt_size=32)
self.pfb_arb_resampler_xxx_0.declare_sample_delay(0)
self.gr_rds_parser_0 = rds.parser(True, False, 0)
self.gr_rds_panel_0 = rds.rdsPanel(freq, self.GetWin())
self.Add(self.gr_rds_panel_0.panel)
self.gr_rds_decoder_0 = rds.decoder(False, False)
self.freq_xlating_fir_filter_xxx_2 = filter.freq_xlating_fir_filter_fcf(
5, (firdes.low_pass(1.0, 240000, 13e3, 3e3, firdes.WIN_HAMMING)),
38000, 240000)
self.freq_xlating_fir_filter_xxx_1_0 = filter.freq_xlating_fir_filter_fcc(
1,
(firdes.low_pass(2500.0, 250000, 2.6e3, 2e3, firdes.WIN_HAMMING)),
57e3, 250000)
self.freq_xlating_fir_filter_xxx_0 = filter.freq_xlating_fir_filter_ccc(
1, (firdes.low_pass(1, samp_rate, 80000, 20000)), freq_offset,
samp_rate)
self.fir_filter_xxx_1 = filter.fir_filter_fff(
5, (firdes.low_pass(1.0, 240000, 13e3, 3e3, firdes.WIN_HAMMING)))
self.fir_filter_xxx_1.declare_sample_delay(0)
self.digital_psk_demod_0 = digital.psk.psk_demod(
constellation_points=2,
differential=False,
samples_per_symbol=4,
excess_bw=0.35,
phase_bw=6.28 / 100.0,
timing_bw=6.28 / 100.0,
mod_code="gray",
verbose=False,
log=False,
)
self.digital_diff_decoder_bb_0 = digital.diff_decoder_bb(2)
self.blocks_sub_xx_0 = blocks.sub_ff(1)
self.blocks_socket_pdu_0 = blocks.socket_pdu("UDP_CLIENT", '127.0.0.1',
'52001', 10000, False)
self.blocks_pdu_set_0 = blocks.pdu_set(pmt.to_pmt("nomfreq"),
pmt.to_pmt(freq))
self.blocks_multiply_const_vxx_0_0 = blocks.multiply_const_vff(
(10**(1. * (volume) / 10), ))
self.blocks_multiply_const_vxx_0 = blocks.multiply_const_vff(
(10**(1. * (volume) / 10), ))
self.blocks_keep_one_in_n_0 = blocks.keep_one_in_n(
gr.sizeof_char * 1, 2)
self.blocks_complex_to_real_0 = blocks.complex_to_real(1)
self.blocks_add_xx_0 = blocks.add_vff(1)
self.audio_sink_0 = audio.sink(48000, '', True)
self.analog_wfm_rcv_0 = analog.wfm_rcv(
quad_rate=samp_rate,
audio_decimation=8,
)
self.analog_fm_deemph_0_0_0 = analog.fm_deemph(fs=48000, tau=75e-6)
self.analog_fm_deemph_0_0 = analog.fm_deemph(fs=48000, tau=75e-6)
##################################################
# Connections
##################################################
self.msg_connect((self.blocks_pdu_set_0, 'pdus'),
(self.rftap_rftap_encap_0, 'in'))
self.msg_connect((self.gr_rds_decoder_0, 'out'),
(self.blocks_pdu_set_0, 'pdus'))
self.msg_connect((self.gr_rds_decoder_0, 'out'),
(self.gr_rds_parser_0, 'in'))
self.msg_connect((self.gr_rds_parser_0, 'out'),
(self.gr_rds_panel_0, 'in'))
self.msg_connect((self.rftap_rftap_encap_0, 'out'),
(self.blocks_socket_pdu_0, 'pdus'))
self.connect((self.analog_fm_deemph_0_0, 0),
(self.blocks_multiply_const_vxx_0_0, 0))
self.connect((self.analog_fm_deemph_0_0_0, 0),
(self.blocks_multiply_const_vxx_0, 0))
self.connect((self.analog_wfm_rcv_0, 0),
(self.freq_xlating_fir_filter_xxx_1_0, 0))
self.connect((self.analog_wfm_rcv_0, 0),
(self.pfb_arb_resampler_xxx_1, 0))
self.connect((self.analog_wfm_rcv_0, 0), (self.wxgui_fftsink2_0_0, 0))
self.connect((self.analog_wfm_rcv_0, 0),
(self.wxgui_waterfallsink2_0, 0))
self.connect((self.blocks_add_xx_0, 0),
(self.analog_fm_deemph_0_0_0, 0))
self.connect((self.blocks_complex_to_real_0, 0),
(self.blocks_add_xx_0, 1))
self.connect((self.blocks_complex_to_real_0, 0),
(self.blocks_sub_xx_0, 1))
self.connect((self.blocks_complex_to_real_0, 0),
(self.wxgui_fftsink2_0_0_0_1, 0))
self.connect((self.blocks_keep_one_in_n_0, 0),
(self.digital_diff_decoder_bb_0, 0))
self.connect((self.blocks_multiply_const_vxx_0, 0),
(self.audio_sink_0, 0))
self.connect((self.blocks_multiply_const_vxx_0_0, 0),
(self.audio_sink_0, 1))
self.connect((self.blocks_sub_xx_0, 0), (self.analog_fm_deemph_0_0, 0))
self.connect((self.digital_diff_decoder_bb_0, 0),
(self.gr_rds_decoder_0, 0))
self.connect((self.digital_psk_demod_0, 0),
(self.blocks_keep_one_in_n_0, 0))
self.connect((self.fir_filter_xxx_1, 0), (self.blocks_add_xx_0, 0))
self.connect((self.fir_filter_xxx_1, 0), (self.blocks_sub_xx_0, 0))
self.connect((self.fir_filter_xxx_1, 0),
(self.wxgui_fftsink2_0_0_0, 0))
self.connect((self.freq_xlating_fir_filter_xxx_0, 0),
(self.analog_wfm_rcv_0, 0))
self.connect((self.freq_xlating_fir_filter_xxx_0, 0),
(self.wxgui_fftsink2_0, 0))
self.connect((self.freq_xlating_fir_filter_xxx_1_0, 0),
(self.pfb_arb_resampler_xxx_0, 0))
self.connect((self.freq_xlating_fir_filter_xxx_2, 0),
(self.blocks_complex_to_real_0, 0))
self.connect((self.pfb_arb_resampler_xxx_0, 0),
(self.root_raised_cosine_filter_0, 0))
self.connect((self.pfb_arb_resampler_xxx_0, 0),
(self.wxgui_fftsink2_0_0_0_1_0_1, 0))
self.connect((self.pfb_arb_resampler_xxx_1, 0),
(self.fir_filter_xxx_1, 0))
self.connect((self.pfb_arb_resampler_xxx_1, 0),
(self.freq_xlating_fir_filter_xxx_2, 0))
self.connect((self.root_raised_cosine_filter_0, 0),
(self.digital_psk_demod_0, 0))
self.connect((self.root_raised_cosine_filter_0, 0),
(self.wxgui_scopesink2_1, 0))
self.connect((self.rtlsdr_source_0_0, 0),
(self.freq_xlating_fir_filter_xxx_0, 0))
def __init__(self):
gr.top_block.__init__(self, "Top Block")
Qt.QWidget.__init__(self)
self.setWindowTitle("Top Block")
try:
self.setWindowIcon(Qt.QIcon.fromTheme('gnuradio-grc'))
except:
pass
self.top_scroll_layout = Qt.QVBoxLayout()
self.setLayout(self.top_scroll_layout)
self.top_scroll = Qt.QScrollArea()
self.top_scroll.setFrameStyle(Qt.QFrame.NoFrame)
self.top_scroll_layout.addWidget(self.top_scroll)
self.top_scroll.setWidgetResizable(True)
self.top_widget = Qt.QWidget()
self.top_scroll.setWidget(self.top_widget)
self.top_layout = Qt.QVBoxLayout(self.top_widget)
self.top_grid_layout = Qt.QGridLayout()
self.top_layout.addLayout(self.top_grid_layout)
self.settings = Qt.QSettings("GNU Radio", "top_block")
self.restoreGeometry(self.settings.value("geometry").toByteArray())
##################################################
# Variables
##################################################
self.demod_rate = demod_rate = 192000
self.audio_decimation = audio_decimation = 4
self.volume = volume = 1
self.samp_rate = samp_rate = 1000e3
self.range1 = range1 = 88.1
self.audio_rate = audio_rate = demod_rate / audio_decimation
##################################################
# Blocks
##################################################
self._volume_layout = Qt.QVBoxLayout()
self._volume_tool_bar = Qt.QToolBar(self)
self._volume_layout.addWidget(self._volume_tool_bar)
self._volume_tool_bar.addWidget(Qt.QLabel("Volume"+": "))
class qwt_counter_pyslot(Qwt.QwtCounter):
def __init__(self, parent=None):
Qwt.QwtCounter.__init__(self, parent)
@pyqtSlot('double')
def setValue(self, value):
super(Qwt.QwtCounter, self).setValue(value)
self._volume_counter = qwt_counter_pyslot()
self._volume_counter.setRange(0.000001, 100, 0.01)
self._volume_counter.setNumButtons(2)
self._volume_counter.setValue(self.volume)
self._volume_tool_bar.addWidget(self._volume_counter)
self._volume_counter.valueChanged.connect(self.set_volume)
self._volume_slider = Qwt.QwtSlider(None, Qt.Qt.Horizontal, Qwt.QwtSlider.BottomScale, Qwt.QwtSlider.BgSlot)
self._volume_slider.setRange(0.000001, 100, 0.01)
self._volume_slider.setValue(self.volume)
self._volume_slider.setMinimumWidth(200)
self._volume_slider.valueChanged.connect(self.set_volume)
self._volume_layout.addWidget(self._volume_slider)
self.top_layout.addLayout(self._volume_layout)
self._range1_layout = Qt.QVBoxLayout()
self._range1_tool_bar = Qt.QToolBar(self)
self._range1_layout.addWidget(self._range1_tool_bar)
self._range1_tool_bar.addWidget(Qt.QLabel("Tune"+": "))
class qwt_counter_pyslot(Qwt.QwtCounter):
def __init__(self, parent=None):
Qwt.QwtCounter.__init__(self, parent)
@pyqtSlot('double')
def setValue(self, value):
super(Qwt.QwtCounter, self).setValue(value)
self._range1_counter = qwt_counter_pyslot()
self._range1_counter.setRange(88, 108, 0.1)
self._range1_counter.setNumButtons(2)
self._range1_counter.setValue(self.range1)
self._range1_tool_bar.addWidget(self._range1_counter)
self._range1_counter.valueChanged.connect(self.set_range1)
self._range1_slider = Qwt.QwtSlider(None, Qt.Qt.Horizontal, Qwt.QwtSlider.BottomScale, Qwt.QwtSlider.BgSlot)
self._range1_slider.setRange(88, 108, 0.1)
self._range1_slider.setValue(self.range1)
self._range1_slider.setMinimumWidth(200)
self._range1_slider.valueChanged.connect(self.set_range1)
self._range1_layout.addWidget(self._range1_slider)
self.top_layout.addLayout(self._range1_layout)
self.rtl2832_source_0 = baz.rtl_source_c(defer_creation=True, output_size=gr.sizeof_gr_complex)
self.rtl2832_source_0.set_verbose(True)
self.rtl2832_source_0.set_vid(0x0)
self.rtl2832_source_0.set_pid(0x0)
self.rtl2832_source_0.set_tuner_name("")
self.rtl2832_source_0.set_default_timeout(0)
self.rtl2832_source_0.set_use_buffer(True)
self.rtl2832_source_0.set_fir_coefficients(([]))
self.rtl2832_source_0.set_read_length(0)
if self.rtl2832_source_0.create() == False: raise Exception("Failed to create RTL2832 Source: rtl2832_source_0")
self.rtl2832_source_0.set_sample_rate(samp_rate)
self.rtl2832_source_0.set_frequency(range1*1e6)
self.rtl2832_source_0.set_auto_gain_mode(True)
self.rtl2832_source_0.set_relative_gain(True)
self.rtl2832_source_0.set_gain(1)
self.rational_resampler_xxx_0_0 = filter.rational_resampler_ccc(
interpolation=demod_rate,
decimation=int(samp_rate),
taps=None,
fractional_bw=None,
)
self.qtgui_freq_sink_x_0 = qtgui.freq_sink_f(
1024, #size
firdes.WIN_BLACKMAN_hARRIS, #wintype
0, #fc
audio_rate, #bw
"", #name
2 #number of inputs
)
self.qtgui_freq_sink_x_0.set_update_time(0.10)
self.qtgui_freq_sink_x_0.set_y_axis(-140, 10)
self.qtgui_freq_sink_x_0.set_trigger_mode(qtgui.TRIG_MODE_FREE, 0.0, 0, "")
self.qtgui_freq_sink_x_0.enable_autoscale(False)
self.qtgui_freq_sink_x_0.enable_grid(True)
self.qtgui_freq_sink_x_0.set_fft_average(0.2)
if float == type(float()):
self.qtgui_freq_sink_x_0.set_plot_pos_half(not True)
labels = ["", "", "", "", "",
"", "", "", "", ""]
widths = [1, 1, 1, 1, 1,
1, 1, 1, 1, 1]
colors = ["blue", "red", "green", "black", "cyan",
"magenta", "yellow", "dark red", "dark green", "dark blue"]
alphas = [1.0, 1.0, 1.0, 1.0, 1.0,
1.0, 1.0, 1.0, 1.0, 1.0]
for i in xrange(2):
if len(labels[i]) == 0:
self.qtgui_freq_sink_x_0.set_line_label(i, "Data {0}".format(i))
else:
self.qtgui_freq_sink_x_0.set_line_label(i, labels[i])
self.qtgui_freq_sink_x_0.set_line_width(i, widths[i])
self.qtgui_freq_sink_x_0.set_line_color(i, colors[i])
self.qtgui_freq_sink_x_0.set_line_alpha(i, alphas[i])
self._qtgui_freq_sink_x_0_win = sip.wrapinstance(self.qtgui_freq_sink_x_0.pyqwidget(), Qt.QWidget)
self.top_layout.addWidget(self._qtgui_freq_sink_x_0_win)
self.audio_sink_0 = audio.sink(audio_rate, "", True)
self.analog_wfm_rcv_pll_0 = analog.wfm_rcv_pll(
demod_rate=demod_rate,
audio_decimation=4,
)
self.analog_fm_deemph_0_1_0 = analog.fm_deemph(fs=audio_rate, tau=75e-6)
self.analog_fm_deemph_0_1 = analog.fm_deemph(fs=audio_rate, tau=75e-6)
self.analog_agc2_xx_0_0_0 = analog.agc2_ff(1e-1, 1e-2, 1.0, 1.0)
self.analog_agc2_xx_0_0_0.set_max_gain(volume)
self.analog_agc2_xx_0_0 = analog.agc2_ff(1e-1, 1e-2, 1.0, 1.0)
self.analog_agc2_xx_0_0.set_max_gain(volume)
##################################################
# Connections
##################################################
self.connect((self.analog_agc2_xx_0_0, 0), (self.analog_fm_deemph_0_1_0, 0))
self.connect((self.analog_agc2_xx_0_0_0, 0), (self.analog_fm_deemph_0_1, 0))
self.connect((self.analog_fm_deemph_0_1, 0), (self.audio_sink_0, 1))
self.connect((self.analog_fm_deemph_0_1, 0), (self.qtgui_freq_sink_x_0, 1))
self.connect((self.analog_fm_deemph_0_1_0, 0), (self.audio_sink_0, 0))
self.connect((self.analog_fm_deemph_0_1_0, 0), (self.qtgui_freq_sink_x_0, 0))
self.connect((self.analog_wfm_rcv_pll_0, 0), (self.analog_agc2_xx_0_0, 0))
self.connect((self.analog_wfm_rcv_pll_0, 1), (self.analog_agc2_xx_0_0_0, 0))
self.connect((self.rational_resampler_xxx_0_0, 0), (self.analog_wfm_rcv_pll_0, 0))
self.connect((self.rtl2832_source_0, 0), (self.rational_resampler_xxx_0_0, 0))
def __init__(self):
grc_wxgui.top_block_gui.__init__(
self, title="Stereo FM receiver and RDS Decoder")
_icon_path = "/usr/share/icons/hicolor/32x32/apps/gnuradio-grc.png"
self.SetIcon(wx.Icon(_icon_path, wx.BITMAP_TYPE_ANY))
##################################################
# Variables
##################################################
self.freq_offset = freq_offset = 250000
self.freq = freq = 105.3e6
self.volume = volume = -3
self.samp_rate = samp_rate = 2000000
self.gain = gain = 20
self.freq_tune = freq_tune = freq - freq_offset
##################################################
# Blocks
##################################################
_volume_sizer = wx.BoxSizer(wx.VERTICAL)
self._volume_text_box = forms.text_box(
parent=self.GetWin(),
sizer=_volume_sizer,
value=self.volume,
callback=self.set_volume,
label='Volume',
converter=forms.float_converter(),
proportion=0,
)
self._volume_slider = forms.slider(
parent=self.GetWin(),
sizer=_volume_sizer,
value=self.volume,
callback=self.set_volume,
minimum=-20,
maximum=10,
num_steps=300,
style=wx.SL_HORIZONTAL,
cast=float,
proportion=1,
)
self.GridAdd(_volume_sizer, 0, 1, 1, 1)
self.nb = self.nb = wx.Notebook(self.GetWin(), style=wx.NB_TOP)
self.nb.AddPage(grc_wxgui.Panel(self.nb), "BB")
self.nb.AddPage(grc_wxgui.Panel(self.nb), "Demod")
self.nb.AddPage(grc_wxgui.Panel(self.nb), "Waterfall")
self.nb.AddPage(grc_wxgui.Panel(self.nb), "L+R")
self.nb.AddPage(grc_wxgui.Panel(self.nb), "L-R")
self.nb.AddPage(grc_wxgui.Panel(self.nb), "RDS")
self.nb.AddPage(grc_wxgui.Panel(self.nb), "Const")
self.GridAdd(self.nb, 2, 0, 1, 2)
_gain_sizer = wx.BoxSizer(wx.VERTICAL)
self._gain_text_box = forms.text_box(
parent=self.GetWin(),
sizer=_gain_sizer,
value=self.gain,
callback=self.set_gain,
label='RF Gain',
converter=forms.float_converter(),
proportion=0,
)
self._gain_slider = forms.slider(
parent=self.GetWin(),
sizer=_gain_sizer,
value=self.gain,
callback=self.set_gain,
minimum=0,
maximum=49.6,
num_steps=124,
style=wx.SL_HORIZONTAL,
cast=float,
proportion=1,
)
self.GridAdd(_gain_sizer, 0, 0, 1, 1)
self.wxgui_waterfallsink2_0 = waterfallsink2.waterfall_sink_f(
self.nb.GetPage(2).GetWin(),
baseband_freq=0,
dynamic_range=100,
ref_level=0,
ref_scale=2.0,
sample_rate=250000,
fft_size=512,
fft_rate=15,
average=False,
avg_alpha=None,
title='Waterfall Plot',
)
self.nb.GetPage(2).Add(self.wxgui_waterfallsink2_0.win)
self.wxgui_scopesink2_1 = scopesink2.scope_sink_c(
self.nb.GetPage(6).GetWin(),
title='Scope Plot',
sample_rate=2375 * 4,
v_scale=0.4,
v_offset=0,
t_scale=0,
ac_couple=False,
xy_mode=True,
num_inputs=1,
trig_mode=wxgui.TRIG_MODE_AUTO,
y_axis_label='Counts',
)
self.nb.GetPage(6).Add(self.wxgui_scopesink2_1.win)
self.wxgui_fftsink2_0_0_0_1_0_1 = fftsink2.fft_sink_c(
self.nb.GetPage(5).GetWin(),
baseband_freq=0,
y_per_div=10,
y_divs=10,
ref_level=0,
ref_scale=2.0,
sample_rate=19000,
fft_size=1024,
fft_rate=15,
average=False,
avg_alpha=None,
title='RDS',
peak_hold=False,
)
self.nb.GetPage(5).Add(self.wxgui_fftsink2_0_0_0_1_0_1.win)
self.wxgui_fftsink2_0_0_0_1 = fftsink2.fft_sink_f(
self.nb.GetPage(4).GetWin(),
baseband_freq=0,
y_per_div=10,
y_divs=10,
ref_level=0,
ref_scale=2.0,
sample_rate=48000,
fft_size=1024,
fft_rate=15,
average=False,
avg_alpha=None,
title='L-R',
peak_hold=False,
)
self.nb.GetPage(4).Add(self.wxgui_fftsink2_0_0_0_1.win)
self.wxgui_fftsink2_0_0_0 = fftsink2.fft_sink_f(
self.nb.GetPage(3).GetWin(),
baseband_freq=0,
y_per_div=10,
y_divs=10,
ref_level=0,
ref_scale=2.0,
sample_rate=48000,
fft_size=1024,
fft_rate=15,
average=False,
avg_alpha=None,
title='L+R',
peak_hold=False,
)
self.nb.GetPage(3).Add(self.wxgui_fftsink2_0_0_0.win)
self.wxgui_fftsink2_0_0 = fftsink2.fft_sink_f(
self.nb.GetPage(1).GetWin(),
baseband_freq=0,
y_per_div=10,
y_divs=10,
ref_level=0,
ref_scale=2.0,
sample_rate=250000,
fft_size=1024,
fft_rate=15,
average=True,
avg_alpha=0.8,
title='FM Demod',
peak_hold=False,
)
self.nb.GetPage(1).Add(self.wxgui_fftsink2_0_0.win)
self.wxgui_fftsink2_0 = fftsink2.fft_sink_c(
self.nb.GetPage(0).GetWin(),
baseband_freq=0,
y_per_div=10,
y_divs=10,
ref_level=-30,
ref_scale=2.0,
sample_rate=samp_rate,
fft_size=1024,
fft_rate=15,
average=True,
avg_alpha=0.8,
title='Baseband',
peak_hold=False,
)
self.nb.GetPage(0).Add(self.wxgui_fftsink2_0.win)
self.rtlsdr_source_0_0 = osmosdr.source(args="numchan=" + str(1) +
" " + '')
self.rtlsdr_source_0_0.set_sample_rate(samp_rate)
self.rtlsdr_source_0_0.set_center_freq(freq_tune, 0)
self.rtlsdr_source_0_0.set_freq_corr(0, 0)
self.rtlsdr_source_0_0.set_dc_offset_mode(0, 0)
self.rtlsdr_source_0_0.set_iq_balance_mode(0, 0)
self.rtlsdr_source_0_0.set_gain_mode(False, 0)
self.rtlsdr_source_0_0.set_gain(14, 0)
self.rtlsdr_source_0_0.set_if_gain(24, 0)
self.rtlsdr_source_0_0.set_bb_gain(gain, 0)
self.rtlsdr_source_0_0.set_antenna('', 0)
self.rtlsdr_source_0_0.set_bandwidth(0, 0)
self.root_raised_cosine_filter_0 = filter.fir_filter_ccf(
2, firdes.root_raised_cosine(1, 19000, 2375, .35, 100))
self.pfb_arb_resampler_xxx_1 = pfb.arb_resampler_fff(240000.0 / 250000,
taps=None,
flt_size=32)
self.pfb_arb_resampler_xxx_1.declare_sample_delay(0)
self.pfb_arb_resampler_xxx_0 = pfb.arb_resampler_ccf(19000 / 250e3,
taps=None,
flt_size=32)
self.pfb_arb_resampler_xxx_0.declare_sample_delay(0)
self.freq_xlating_fir_filter_xxx_2 = filter.freq_xlating_fir_filter_fcf(
5, (firdes.low_pass(1.0, 240000, 13e3, 3e3, firdes.WIN_HAMMING)),
38000, 240000)
self.freq_xlating_fir_filter_xxx_1_0 = filter.freq_xlating_fir_filter_fcc(
1,
(firdes.low_pass(2500.0, 250000, 2.6e3, 2e3, firdes.WIN_HAMMING)),
57e3, 250000)
self.freq_xlating_fir_filter_xxx_0 = filter.freq_xlating_fir_filter_ccc(
1, (firdes.low_pass(1, samp_rate, 80000, 20000)), freq_offset,
samp_rate)
_freq_sizer = wx.BoxSizer(wx.VERTICAL)
self._freq_text_box = forms.text_box(
parent=self.GetWin(),
sizer=_freq_sizer,
value=self.freq,
callback=self.set_freq,
label='Freq',
converter=forms.float_converter(),
proportion=0,
)
self._freq_slider = forms.slider(
parent=self.GetWin(),
sizer=_freq_sizer,
value=self.freq,
callback=self.set_freq,
minimum=88e6,
maximum=108e6,
num_steps=200,
style=wx.SL_HORIZONTAL,
cast=float,
proportion=1,
)
self.GridAdd(_freq_sizer, 1, 0, 1, 2)
self.fir_filter_xxx_1 = filter.fir_filter_fff(
5, (firdes.low_pass(1.0, 240000, 13e3, 3e3, firdes.WIN_HAMMING)))
self.fir_filter_xxx_1.declare_sample_delay(0)
self.blocks_sub_xx_0 = blocks.sub_ff(1)
self.blocks_multiply_const_vxx_0_0 = blocks.multiply_const_vff(
(10**(1. * (volume) / 10), ))
self.blocks_multiply_const_vxx_0 = blocks.multiply_const_vff(
(10**(1. * (volume) / 10), ))
self.blocks_complex_to_real_0 = blocks.complex_to_real(1)
self.blocks_add_xx_0 = blocks.add_vff(1)
self.audio_sink_0 = audio.sink(48000, '', True)
self.analog_wfm_rcv_0 = analog.wfm_rcv(
quad_rate=samp_rate,
audio_decimation=8,
)
self.analog_fm_deemph_0_0_0 = analog.fm_deemph(fs=48000, tau=75e-6)
self.analog_fm_deemph_0_0 = analog.fm_deemph(fs=48000, tau=75e-6)
##################################################
# Connections
##################################################
self.connect((self.analog_fm_deemph_0_0, 0),
(self.blocks_multiply_const_vxx_0_0, 0))
self.connect((self.analog_fm_deemph_0_0_0, 0),
(self.blocks_multiply_const_vxx_0, 0))
self.connect((self.analog_wfm_rcv_0, 0),
(self.freq_xlating_fir_filter_xxx_1_0, 0))
self.connect((self.analog_wfm_rcv_0, 0),
(self.pfb_arb_resampler_xxx_1, 0))
self.connect((self.analog_wfm_rcv_0, 0), (self.wxgui_fftsink2_0_0, 0))
self.connect((self.analog_wfm_rcv_0, 0),
(self.wxgui_waterfallsink2_0, 0))
self.connect((self.blocks_add_xx_0, 0),
(self.analog_fm_deemph_0_0_0, 0))
self.connect((self.blocks_complex_to_real_0, 0),
(self.blocks_add_xx_0, 1))
self.connect((self.blocks_complex_to_real_0, 0),
(self.blocks_sub_xx_0, 1))
self.connect((self.blocks_complex_to_real_0, 0),
(self.wxgui_fftsink2_0_0_0_1, 0))
self.connect((self.blocks_multiply_const_vxx_0, 0),
(self.audio_sink_0, 0))
self.connect((self.blocks_multiply_const_vxx_0_0, 0),
(self.audio_sink_0, 1))
self.connect((self.blocks_sub_xx_0, 0), (self.analog_fm_deemph_0_0, 0))
self.connect((self.fir_filter_xxx_1, 0), (self.blocks_add_xx_0, 0))
self.connect((self.fir_filter_xxx_1, 0), (self.blocks_sub_xx_0, 0))
self.connect((self.fir_filter_xxx_1, 0),
(self.wxgui_fftsink2_0_0_0, 0))
self.connect((self.freq_xlating_fir_filter_xxx_0, 0),
(self.analog_wfm_rcv_0, 0))
self.connect((self.freq_xlating_fir_filter_xxx_0, 0),
(self.wxgui_fftsink2_0, 0))
self.connect((self.freq_xlating_fir_filter_xxx_1_0, 0),
(self.pfb_arb_resampler_xxx_0, 0))
self.connect((self.freq_xlating_fir_filter_xxx_2, 0),
(self.blocks_complex_to_real_0, 0))
self.connect((self.pfb_arb_resampler_xxx_0, 0),
(self.root_raised_cosine_filter_0, 0))
self.connect((self.pfb_arb_resampler_xxx_0, 0),
(self.wxgui_fftsink2_0_0_0_1_0_1, 0))
self.connect((self.pfb_arb_resampler_xxx_1, 0),
(self.fir_filter_xxx_1, 0))
self.connect((self.pfb_arb_resampler_xxx_1, 0),
(self.freq_xlating_fir_filter_xxx_2, 0))
self.connect((self.root_raised_cosine_filter_0, 0),
(self.wxgui_scopesink2_1, 0))
self.connect((self.rtlsdr_source_0_0, 0),
(self.freq_xlating_fir_filter_xxx_0, 0))
