def __init__(self, input_path, sample_rate, output_path):
gr.top_block.__init__(self)
# We don't use the existing NBFM demodulator block because it
# contains a lowpass output filter which is unsuitable for 9600
# GMSK (it's designed for voice).
self.source = gr.file_source(gr.sizeof_gr_complex * 1, input_path,
False)
self.low_pass_filter = gr.fir_filter_ccf(
4,
firdes.low_pass(1, sample_rate, 15000, 100, firdes.WIN_HAMMING,
6.76))
# High pass filter to remove the DC component. This is important
# when the signal is near the SDR's local oscillator.
# NOTE(tstranex): Disabled since we are now shifting the FCD
# center frequency instead.
#self.high_pass_filter = gr.fir_filter_ccf(1, firdes.high_pass(
# 1, sample_rate/4, 100, 100, firdes.WIN_HAMMING, 6.76))
self.quadrature_demod = gr.quadrature_demod_cf(sample_rate / 4 /
(2 * 3.14 * 3000))
self.fm_deemph = blks2.fm_deemph(fs=sample_rate / 4, tau=75e-6)
self.boost_volume = gr.multiply_const_vff((1.52, ))
self.sink = gr.wavfile_sink(output_path, 1, sample_rate / 4, 16)
self.connect((self.source, 0), (self.low_pass_filter, 0))
#self.connect((self.low_pass_filter, 0), (self.high_pass_filter, 0))
#self.connect((self.high_pass_filter, 0), (self.quadrature_demod, 0))
self.connect((self.low_pass_filter, 0), (self.quadrature_demod, 0))
self.connect((self.quadrature_demod, 0), (self.fm_deemph, 0))
self.connect((self.fm_deemph, 0), (self.boost_volume, 0))
self.connect((self.boost_volume, 0), (self.sink, 0))
def __init__(self, input_path, sample_rate, output_path):
gr.top_block.__init__(self)
# We don't use the existing NBFM demodulator block because it
# contains a lowpass output filter which is unsuitable for 9600
# GMSK (it's designed for voice).
self.source = gr.file_source(gr.sizeof_gr_complex * 1, input_path, False)
self.low_pass_filter = gr.fir_filter_ccf(
4, firdes.low_pass(1, sample_rate, 15000, 100, firdes.WIN_HAMMING, 6.76)
)
# High pass filter to remove the DC component. This is important
# when the signal is near the SDR's local oscillator.
# NOTE(tstranex): Disabled since we are now shifting the FCD
# center frequency instead.
# self.high_pass_filter = gr.fir_filter_ccf(1, firdes.high_pass(
# 1, sample_rate/4, 100, 100, firdes.WIN_HAMMING, 6.76))
self.quadrature_demod = gr.quadrature_demod_cf(sample_rate / 4 / (2 * 3.14 * 3000))
self.fm_deemph = blks2.fm_deemph(fs=sample_rate / 4, tau=75e-6)
self.boost_volume = gr.multiply_const_vff((1.52,))
self.sink = gr.wavfile_sink(output_path, 1, sample_rate / 4, 16)
self.connect((self.source, 0), (self.low_pass_filter, 0))
# self.connect((self.low_pass_filter, 0), (self.high_pass_filter, 0))
# self.connect((self.high_pass_filter, 0), (self.quadrature_demod, 0))
self.connect((self.low_pass_filter, 0), (self.quadrature_demod, 0))
self.connect((self.quadrature_demod, 0), (self.fm_deemph, 0))
self.connect((self.fm_deemph, 0), (self.boost_volume, 0))
self.connect((self.boost_volume, 0), (self.sink, 0))
def __init__(self, devid="type=b100", rdsfile="rds_fifo", gain=35.0, freq=101.1e6, xmlport=13777, arate=int(48e3), mute=-15.0, ftune=0, ant="J1", subdev="A:0", ahw="pulse", deemph=75.0e-6, prenames='["UWRF","89.3","950","WEVR"]', prefreqs="[88.715e6,89.3e6,950.735e6,106.317e6]", volume=1.0):
grc_wxgui.top_block_gui.__init__(self, title="Simple FM (Stereo) Receiver")
_icon_path = "/usr/share/icons/hicolor/32x32/apps/gnuradio-grc.png"
self.SetIcon(wx.Icon(_icon_path, wx.BITMAP_TYPE_ANY))
##################################################
# Parameters
##################################################
self.devid = devid
self.rdsfile = rdsfile
self.gain = gain
self.freq = freq
self.xmlport = xmlport
self.arate = arate
self.mute = mute
self.ftune = ftune
self.ant = ant
self.subdev = subdev
self.ahw = ahw
self.deemph = deemph
self.prenames = prenames
self.prefreqs = prefreqs
self.volume = volume
##################################################
# Variables
##################################################
self.pthresh = pthresh = 350
self.preselect = preselect = eval(prefreqs)[0]
self.pilot_level = pilot_level = 0
self.ifreq = ifreq = freq
self.stpilotdet = stpilotdet = True if (pilot_level > pthresh) else False
self.stereo = stereo = True
self.rf_pwr_lvl = rf_pwr_lvl = 0
self.cur_freq = cur_freq = simple_fm_helper.freq_select(ifreq,preselect)
self.vol = vol = volume
self.variable_static_text_0 = variable_static_text_0 = 10.0*math.log(rf_pwr_lvl+1.0e-11)/math.log(10)
self.tone_med = tone_med = 5
self.tone_low = tone_low = 5
self.tone_high = tone_high = 5
self.stereo_0 = stereo_0 = stpilotdet
self.st_enabled = st_enabled = 1 if (stereo == True and pilot_level > pthresh) else 0
self.squelch_probe = squelch_probe = 0
self.sq_thresh = sq_thresh = mute
self.samp_rate = samp_rate = 250e3
self.rtext_0 = rtext_0 = cur_freq
self.record = record = False
self.rdsrate = rdsrate = 25e3
self.osmo_taps = osmo_taps = firdes.low_pass(1.0,1.00e6,95e3,20e3,firdes.WIN_HAMMING,6.76)
self.mod_reset = mod_reset = 0
self.igain = igain = gain
self.fine = fine = ftune
self.farate = farate = arate
self.dm = dm = deemph
self.discrim_dc = discrim_dc = 0
self.capture_file = capture_file = "capture.wav"
self.asrate = asrate = 125e3
##################################################
# Blocks
##################################################
_sq_thresh_sizer = wx.BoxSizer(wx.VERTICAL)
self._sq_thresh_text_box = forms.text_box(
parent=self.GetWin(),
sizer=_sq_thresh_sizer,
value=self.sq_thresh,
callback=self.set_sq_thresh,
label="Mute Level",
converter=forms.float_converter(),
proportion=0,
)
self._sq_thresh_slider = forms.slider(
parent=self.GetWin(),
sizer=_sq_thresh_sizer,
value=self.sq_thresh,
callback=self.set_sq_thresh,
minimum=-30.0,
maximum=-5.0,
num_steps=40,
style=wx.SL_HORIZONTAL,
cast=float,
proportion=1,
)
self.GridAdd(_sq_thresh_sizer, 1, 5, 1, 1)
self.input_power = gr.probe_avg_mag_sqrd_c(sq_thresh, 1.0/(samp_rate/10))
self.dc_level = gr.probe_signal_f()
_vol_sizer = wx.BoxSizer(wx.VERTICAL)
self._vol_text_box = forms.text_box(
parent=self.GetWin(),
sizer=_vol_sizer,
value=self.vol,
callback=self.set_vol,
label="Volume",
converter=forms.float_converter(),
proportion=0,
)
self._vol_slider = forms.slider(
parent=self.GetWin(),
sizer=_vol_sizer,
value=self.vol,
callback=self.set_vol,
minimum=0,
maximum=11,
num_steps=110,
style=wx.SL_HORIZONTAL,
cast=float,
proportion=1,
)
self.GridAdd(_vol_sizer, 0, 3, 1, 1)
_tone_med_sizer = wx.BoxSizer(wx.VERTICAL)
self._tone_med_text_box = forms.text_box(
parent=self.GetWin(),
sizer=_tone_med_sizer,
value=self.tone_med,
callback=self.set_tone_med,
label="1Khz-4Khz",
converter=forms.float_converter(),
proportion=0,
)
self._tone_med_slider = forms.slider(
parent=self.GetWin(),
sizer=_tone_med_sizer,
value=self.tone_med,
callback=self.set_tone_med,
minimum=0,
maximum=10,
num_steps=100,
style=wx.SL_HORIZONTAL,
cast=float,
proportion=1,
)
self.GridAdd(_tone_med_sizer, 1, 3, 1, 1)
_tone_low_sizer = wx.BoxSizer(wx.VERTICAL)
self._tone_low_text_box = forms.text_box(
parent=self.GetWin(),
sizer=_tone_low_sizer,
value=self.tone_low,
callback=self.set_tone_low,
label="0-1Khz",
converter=forms.float_converter(),
proportion=0,
)
self._tone_low_slider = forms.slider(
parent=self.GetWin(),
sizer=_tone_low_sizer,
value=self.tone_low,
callback=self.set_tone_low,
minimum=0,
maximum=10,
num_steps=100,
style=wx.SL_HORIZONTAL,
cast=float,
proportion=1,
)
self.GridAdd(_tone_low_sizer, 1, 2, 1, 1)
_tone_high_sizer = wx.BoxSizer(wx.VERTICAL)
self._tone_high_text_box = forms.text_box(
parent=self.GetWin(),
sizer=_tone_high_sizer,
value=self.tone_high,
callback=self.set_tone_high,
label="4Khz-15Khz",
converter=forms.float_converter(),
proportion=0,
)
self._tone_high_slider = forms.slider(
parent=self.GetWin(),
sizer=_tone_high_sizer,
value=self.tone_high,
callback=self.set_tone_high,
minimum=0,
maximum=10,
num_steps=100,
style=wx.SL_HORIZONTAL,
cast=float,
proportion=1,
)
self.GridAdd(_tone_high_sizer, 1, 4, 1, 1)
def _squelch_probe_probe():
while True:
val = self.input_power.unmuted()
try: self.set_squelch_probe(val)
except AttributeError, e: pass
time.sleep(1.0/(10))
_squelch_probe_thread = threading.Thread(target=_squelch_probe_probe)
_squelch_probe_thread.daemon = True
_squelch_probe_thread.start()
self._record_check_box = forms.check_box(
parent=self.GetWin(),
value=self.record,
callback=self.set_record,
label="Record Audio",
true=True,
false=False,
)
self.GridAdd(self._record_check_box, 2, 2, 1, 1)
self.pilot_probe = gr.probe_signal_f()
_fine_sizer = wx.BoxSizer(wx.VERTICAL)
self._fine_text_box = forms.text_box(
parent=self.GetWin(),
sizer=_fine_sizer,
value=self.fine,
callback=self.set_fine,
label="Fine Tuning",
converter=forms.float_converter(),
proportion=0,
)
self._fine_slider = forms.slider(
parent=self.GetWin(),
sizer=_fine_sizer,
value=self.fine,
callback=self.set_fine,
minimum=-50.0e3,
maximum=50.e03,
num_steps=400,
style=wx.SL_HORIZONTAL,
cast=float,
proportion=1,
)
self.GridAdd(_fine_sizer, 1, 0, 1, 1)
def _discrim_dc_probe():
while True:
val = self.dc_level.level()
try: self.set_discrim_dc(val)
except AttributeError, e: pass
time.sleep(1.0/(2.5))
_discrim_dc_thread = threading.Thread(target=_discrim_dc_probe)
_discrim_dc_thread.daemon = True
_discrim_dc_thread.start()
self._capture_file_text_box = forms.text_box(
parent=self.GetWin(),
value=self.capture_file,
callback=self.set_capture_file,
label="Record Filename",
converter=forms.str_converter(),
)
self.GridAdd(self._capture_file_text_box, 2, 0, 1, 2)
self.Main = self.Main = wx.Notebook(self.GetWin(), style=wx.NB_TOP)
self.Main.AddPage(grc_wxgui.Panel(self.Main), "L/R")
self.Main.AddPage(grc_wxgui.Panel(self.Main), "FM Demod Spectrum")
self.Add(self.Main)
self.wxgui_waterfallsink2_0 = waterfallsink2.waterfall_sink_c(
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.wxgui_scopesink2_0 = scopesink2.scope_sink_f(
self.Main.GetPage(0).GetWin(),
title="Audio Channels (L and R)",
sample_rate=farate,
v_scale=0,
v_offset=0,
t_scale=0,
ac_couple=False,
xy_mode=False,
num_inputs=2,
trig_mode=gr.gr_TRIG_MODE_AUTO,
y_axis_label="Rel. Audio Level",
)
self.Main.GetPage(0).Add(self.wxgui_scopesink2_0.win)
self.wxgui_fftsink2_0 = fftsink2.fft_sink_f(
self.Main.GetPage(1).GetWin(),
baseband_freq=0,
y_per_div=10,
y_divs=10,
ref_level=0,
ref_scale=2.0,
sample_rate=asrate,
fft_size=1024,
fft_rate=6,
average=True,
avg_alpha=0.1,
title="FM Demod Spectrum",
peak_hold=False,
)
self.Main.GetPage(1).Add(self.wxgui_fftsink2_0.win)
self._variable_static_text_0_static_text = forms.static_text(
parent=self.GetWin(),
value=self.variable_static_text_0,
callback=self.set_variable_static_text_0,
label="RF Power ",
converter=forms.float_converter(formatter=lambda x: "%4.1f" % x),
)
self.GridAdd(self._variable_static_text_0_static_text, 0, 2, 1, 1)
self._stereo_0_check_box = forms.check_box(
parent=self.GetWin(),
value=self.stereo_0,
callback=self.set_stereo_0,
label="Stereo Detect",
true=True,
false=False,
)
self.GridAdd(self._stereo_0_check_box, 2, 5, 1, 1)
self._stereo_check_box = forms.check_box(
parent=self.GetWin(),
value=self.stereo,
callback=self.set_stereo,
label="Stereo",
true=True,
false=False,
)
self.GridAdd(self._stereo_check_box, 2, 4, 1, 1)
self.rtl2832_source_0 = baz.rtl_source_c(defer_creation=True)
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(([]))
if self.rtl2832_source_0.create() == False: raise Exception("Failed to create RTL2832 Source: rtl2832_source_0")
self.rtl2832_source_0.set_sample_rate(1.0e6)
self.rtl2832_source_0.set_frequency(cur_freq+200e3)
self.rtl2832_source_0.set_auto_gain_mode(False)
self.rtl2832_source_0.set_relative_gain(True)
self.rtl2832_source_0.set_gain(gain)
self._rtext_0_static_text = forms.static_text(
parent=self.GetWin(),
value=self.rtext_0,
callback=self.set_rtext_0,
label="CURRENT FREQUENCY>>",
converter=forms.float_converter(),
)
self.GridAdd(self._rtext_0_static_text, 0, 1, 1, 1)
def _rf_pwr_lvl_probe():
while True:
val = self.input_power.level()
try: self.set_rf_pwr_lvl(val)
except AttributeError, e: pass
time.sleep(1.0/(2))
_rf_pwr_lvl_thread = threading.Thread(target=_rf_pwr_lvl_probe)
_rf_pwr_lvl_thread.daemon = True
_rf_pwr_lvl_thread.start()
self._preselect_chooser = forms.radio_buttons(
parent=self.GetWin(),
value=self.preselect,
callback=self.set_preselect,
label='preselect',
choices=eval(prefreqs),
labels=eval(prenames),
style=wx.RA_HORIZONTAL,
)
self.GridAdd(self._preselect_chooser, 0, 4, 1, 1)
def _pilot_level_probe():
while True:
val = self.pilot_probe.level()
try: self.set_pilot_level(val)
except AttributeError, e: pass
time.sleep(1.0/(5))
_pilot_level_thread = threading.Thread(target=_pilot_level_probe)
_pilot_level_thread.daemon = True
_pilot_level_thread.start()
self.low_pass_filter_3 = gr.fir_filter_fff(1, firdes.low_pass(
3, asrate/500, 10, 3, firdes.WIN_HAMMING, 6.76))
self.low_pass_filter_2 = gr.fir_filter_fff(10, firdes.low_pass(
3, asrate/50, 100, 30, firdes.WIN_HAMMING, 6.76))
self.low_pass_filter_1 = gr.fir_filter_fff(10, firdes.low_pass(
3, asrate/5, 1e3, 200, firdes.WIN_HAMMING, 6.76))
self.low_pass_filter_0 = gr.fir_filter_fff(5, firdes.low_pass(
3, asrate, 10e3, 2e3, firdes.WIN_HAMMING, 6.76))
_igain_sizer = wx.BoxSizer(wx.VERTICAL)
self._igain_text_box = forms.text_box(
parent=self.GetWin(),
sizer=_igain_sizer,
value=self.igain,
callback=self.set_igain,
label="RF Gain",
converter=forms.float_converter(),
proportion=0,
)
self._igain_slider = forms.slider(
parent=self.GetWin(),
sizer=_igain_sizer,
value=self.igain,
callback=self.set_igain,
minimum=0,
maximum=50,
num_steps=100,
style=wx.SL_HORIZONTAL,
cast=float,
proportion=1,
)
self.GridAdd(_igain_sizer, 1, 1, 1, 1)
_ifreq_sizer = wx.BoxSizer(wx.VERTICAL)
self._ifreq_text_box = forms.text_box(
parent=self.GetWin(),
sizer=_ifreq_sizer,
value=self.ifreq,
callback=self.set_ifreq,
label="Center Frequency",
converter=forms.float_converter(),
proportion=0,
)
self._ifreq_slider = forms.slider(
parent=self.GetWin(),
sizer=_ifreq_sizer,
value=self.ifreq,
callback=self.set_ifreq,
minimum=88.1e6,
maximum=108.1e6,
num_steps=200,
style=wx.SL_HORIZONTAL,
cast=float,
proportion=1,
)
self.GridAdd(_ifreq_sizer, 0, 0, 1, 1)
self.gr_wavfile_sink_0 = gr.wavfile_sink("/dev/null" if record == False else capture_file, 2, int(farate), 16)
self.gr_sub_xx_0 = gr.sub_ff(1)
self.gr_single_pole_iir_filter_xx_1 = gr.single_pole_iir_filter_ff(2.5/(asrate/500), 1)
self.gr_single_pole_iir_filter_xx_0 = gr.single_pole_iir_filter_ff(1.0/(asrate/3), 1)
self.gr_multiply_xx_1 = gr.multiply_vff(1)
self.gr_multiply_xx_0_0 = gr.multiply_vff(1)
self.gr_multiply_xx_0 = gr.multiply_vff(1)
self.gr_multiply_const_vxx_3 = gr.multiply_const_vff((3.16e3 if st_enabled else 0, ))
self.gr_multiply_const_vxx_2 = gr.multiply_const_vff((1.0 if st_enabled else 1.414, ))
self.gr_multiply_const_vxx_1_0 = gr.multiply_const_vff((0 if st_enabled else 1, ))
self.gr_multiply_const_vxx_1 = gr.multiply_const_vff((0 if squelch_probe == 0 else 1.0, ))
self.gr_multiply_const_vxx_0_0 = gr.multiply_const_vff((vol*1.5*10.0, ))
self.gr_multiply_const_vxx_0 = gr.multiply_const_vff((vol*1.5*10.0 if st_enabled else 0, ))
self.gr_keep_one_in_n_0 = gr.keep_one_in_n(gr.sizeof_float*1, int(asrate/3))
self.gr_freq_xlating_fir_filter_xxx_0 = gr.freq_xlating_fir_filter_ccc(4, (osmo_taps), 200e3+fine+(-12e3*discrim_dc), 1.0e6)
self.gr_fractional_interpolator_xx_0_0 = gr.fractional_interpolator_ff(0, asrate/farate)
self.gr_fractional_interpolator_xx_0 = gr.fractional_interpolator_ff(0, asrate/farate)
self.gr_fft_filter_xxx_1_0_0 = gr.fft_filter_fff(1, (firdes.band_pass(tone_high/10.0,asrate,3.5e3,15.0e3,5.0e3,firdes.WIN_HAMMING)), 1)
self.gr_fft_filter_xxx_1_0 = gr.fft_filter_fff(1, (firdes.band_pass(tone_med/10.0,asrate,1.0e3,4.0e3,2.0e3,firdes.WIN_HAMMING)), 1)
self.gr_fft_filter_xxx_1 = gr.fft_filter_fff(1, (firdes.low_pass(tone_low/10.0,asrate,1.2e3,500,firdes.WIN_HAMMING)), 1)
self.gr_fft_filter_xxx_0_0_0 = gr.fft_filter_fff(1, (firdes.band_pass(tone_high/10.0,asrate,3.5e3,13.5e3,3.5e3,firdes.WIN_HAMMING)), 1)
self.gr_fft_filter_xxx_0_0 = gr.fft_filter_fff(1, (firdes.band_pass(tone_med/10.0,asrate,1.0e3,4.0e3,2.0e3,firdes.WIN_HAMMING)), 1)
self.gr_fft_filter_xxx_0 = gr.fft_filter_fff(1, (firdes.low_pass(tone_low/10.0,asrate,1.2e3,500,firdes.WIN_HAMMING)), 1)
self.gr_divide_xx_0 = gr.divide_ff(1)
self.gr_agc_xx_1 = gr.agc_cc(1e-2, 0.35, 1.0, 5000)
self.gr_add_xx_2_0 = gr.add_vff(1)
self.gr_add_xx_2 = gr.add_vff(1)
self.gr_add_xx_1 = gr.add_vff(1)
self.gr_add_xx_0 = gr.add_vff(1)
self.gr_add_const_vxx_0 = gr.add_const_vff((1.0e-7, ))
self._dm_chooser = forms.radio_buttons(
parent=self.GetWin(),
value=self.dm,
callback=self.set_dm,
label="FM Deemphasis",
choices=[75.0e-6, 50.0e-6],
labels=["NA", "EU"],
style=wx.RA_HORIZONTAL,
)
self.GridAdd(self._dm_chooser, 0, 5, 1, 1)
self.blks2_wfm_rcv_0 = blks2.wfm_rcv(
quad_rate=samp_rate,
audio_decimation=2,
)
self.blks2_fm_deemph_0_0 = blks2.fm_deemph(fs=farate, tau=deemph)
self.blks2_fm_deemph_0 = blks2.fm_deemph(fs=farate, tau=deemph)
self.band_pass_filter_2_0 = gr.fir_filter_fff(1, firdes.band_pass(
20, asrate, 17.5e3, 17.9e3, 250, firdes.WIN_HAMMING, 6.76))
self.band_pass_filter_2 = gr.fir_filter_fff(1, firdes.band_pass(
10, asrate, 18.8e3, 19.2e3, 350, firdes.WIN_HAMMING, 6.76))
self.band_pass_filter_0_0 = gr.fir_filter_fff(1, firdes.band_pass(
1, asrate, 38e3-(15e3), 38e3+(15e3), 4.0e3, firdes.WIN_HAMMING, 6.76))
self.audio_sink_0 = audio.sink(int(farate), "" if ahw == "Default" else ahw, True)
##################################################
# Connections
##################################################
self.connect((self.gr_add_xx_1, 0), (self.gr_fractional_interpolator_xx_0, 0))
self.connect((self.gr_sub_xx_0, 0), (self.gr_fractional_interpolator_xx_0_0, 0))
self.connect((self.band_pass_filter_0_0, 0), (self.gr_multiply_xx_1, 0))
self.connect((self.gr_multiply_const_vxx_1_0, 0), (self.gr_add_xx_0, 0))
self.connect((self.band_pass_filter_2_0, 0), (self.gr_multiply_xx_0, 0))
self.connect((self.band_pass_filter_2_0, 0), (self.gr_multiply_xx_0, 1))
self.connect((self.gr_multiply_xx_0_0, 0), (self.gr_divide_xx_0, 0))
self.connect((self.gr_divide_xx_0, 0), (self.gr_single_pole_iir_filter_xx_0, 0))
self.connect((self.gr_multiply_xx_0, 0), (self.gr_add_const_vxx_0, 0))
self.connect((self.gr_add_const_vxx_0, 0), (self.gr_divide_xx_0, 1))
self.connect((self.gr_single_pole_iir_filter_xx_0, 0), (self.gr_keep_one_in_n_0, 0))
self.connect((self.gr_keep_one_in_n_0, 0), (self.pilot_probe, 0))
self.connect((self.band_pass_filter_2, 0), (self.gr_multiply_xx_1, 2))
self.connect((self.band_pass_filter_2, 0), (self.gr_multiply_xx_0_0, 0))
self.connect((self.gr_multiply_const_vxx_2, 0), (self.gr_add_xx_1, 0))
self.connect((self.gr_multiply_const_vxx_2, 0), (self.gr_sub_xx_0, 0))
self.connect((self.gr_multiply_const_vxx_3, 0), (self.gr_sub_xx_0, 1))
self.connect((self.gr_multiply_const_vxx_3, 0), (self.gr_add_xx_1, 1))
self.connect((self.gr_fractional_interpolator_xx_0, 0), (self.gr_multiply_const_vxx_0_0, 0))
self.connect((self.gr_fractional_interpolator_xx_0_0, 0), (self.gr_multiply_const_vxx_0, 0))
self.connect((self.band_pass_filter_2, 0), (self.gr_multiply_xx_1, 1))
self.connect((self.gr_multiply_xx_1, 0), (self.gr_fft_filter_xxx_0, 0))
self.connect((self.gr_fft_filter_xxx_1, 0), (self.gr_add_xx_2, 0))
self.connect((self.gr_fft_filter_xxx_1_0, 0), (self.gr_add_xx_2, 1))
self.connect((self.gr_fft_filter_xxx_1_0_0, 0), (self.gr_add_xx_2, 2))
self.connect((self.gr_add_xx_2, 0), (self.gr_multiply_const_vxx_2, 0))
self.connect((self.gr_add_xx_2_0, 0), (self.gr_multiply_const_vxx_3, 0))
self.connect((self.gr_fft_filter_xxx_0, 0), (self.gr_add_xx_2_0, 0))
self.connect((self.gr_fft_filter_xxx_0_0, 0), (self.gr_add_xx_2_0, 1))
self.connect((self.gr_multiply_xx_1, 0), (self.gr_fft_filter_xxx_0_0, 0))
self.connect((self.gr_fft_filter_xxx_0_0_0, 0), (self.gr_add_xx_2_0, 2))
self.connect((self.gr_multiply_xx_1, 0), (self.gr_fft_filter_xxx_0_0_0, 0))
self.connect((self.blks2_fm_deemph_0, 0), (self.gr_multiply_const_vxx_1_0, 0))
self.connect((self.blks2_fm_deemph_0, 0), (self.gr_wavfile_sink_0, 0))
self.connect((self.gr_multiply_const_vxx_1, 0), (self.gr_fft_filter_xxx_1, 0))
self.connect((self.gr_multiply_const_vxx_1, 0), (self.gr_fft_filter_xxx_1_0, 0))
self.connect((self.gr_multiply_const_vxx_1, 0), (self.gr_fft_filter_xxx_1_0_0, 0))
self.connect((self.gr_multiply_const_vxx_1, 0), (self.wxgui_fftsink2_0, 0))
self.connect((self.gr_multiply_const_vxx_0_0, 0), (self.blks2_fm_deemph_0, 0))
self.connect((self.gr_add_xx_0, 0), (self.audio_sink_0, 1))
self.connect((self.gr_multiply_const_vxx_0, 0), (self.blks2_fm_deemph_0_0, 0))
self.connect((self.blks2_fm_deemph_0_0, 0), (self.gr_add_xx_0, 1))
self.connect((self.band_pass_filter_2, 0), (self.gr_multiply_xx_0_0, 1))
self.connect((self.gr_multiply_const_vxx_1, 0), (self.band_pass_filter_2, 0))
self.connect((self.blks2_fm_deemph_0, 0), (self.audio_sink_0, 0))
self.connect((self.gr_multiply_const_vxx_1, 0), (self.band_pass_filter_2_0, 0))
self.connect((self.gr_multiply_const_vxx_1, 0), (self.band_pass_filter_0_0, 0))
self.connect((self.gr_add_xx_0, 0), (self.gr_wavfile_sink_0, 1))
self.connect((self.blks2_fm_deemph_0, 0), (self.wxgui_scopesink2_0, 0))
self.connect((self.gr_add_xx_0, 0), (self.wxgui_scopesink2_0, 1))
self.connect((self.blks2_wfm_rcv_0, 0), (self.gr_multiply_const_vxx_1, 0))
self.connect((self.gr_agc_xx_1, 0), (self.blks2_wfm_rcv_0, 0))
self.connect((self.gr_freq_xlating_fir_filter_xxx_0, 0), (self.gr_agc_xx_1, 0))
self.connect((self.gr_freq_xlating_fir_filter_xxx_0, 0), (self.input_power, 0))
self.connect((self.blks2_wfm_rcv_0, 0), (self.low_pass_filter_0, 0))
self.connect((self.low_pass_filter_0, 0), (self.low_pass_filter_1, 0))
self.connect((self.low_pass_filter_1, 0), (self.low_pass_filter_2, 0))
self.connect((self.low_pass_filter_2, 0), (self.low_pass_filter_3, 0))
self.connect((self.gr_single_pole_iir_filter_xx_1, 0), (self.dc_level, 0))
self.connect((self.low_pass_filter_3, 0), (self.gr_single_pole_iir_filter_xx_1, 0))
self.connect((self.rtl2832_source_0, 0), (self.gr_freq_xlating_fir_filter_xxx_0, 0))
self.connect((self.gr_freq_xlating_fir_filter_xxx_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 = 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 = blks2.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 = gr.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 = gr.firdes.low_pass (1.0, # gain
demod_rate, # sampling rate
max_sca_dev, # cutoff freq
max_sca_dev/3, # trans. band
gr.firdes.WIN_HANN) # filter type
self.ddc = gr.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 = gr.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 = gr.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
gr.firdes.WIN_HAMMING)
# input: float; output: float
self.audio_filter = gr.fir_filter_fff (audio_decim, audio_coeffs)
# Create deemphasis block that is applied after SCA demodulation
self.deemph = blks2.fm_deemph (audio_rate, sca_tau)
self.volume_control = gr.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, ahw="default", freq=150.0e6, ppm=0.0, vol=1.0, ftune=0.0, xftune=0.0, srate=1.0e6, upclo=0.0, devinfo="rtl=0", agc=0, arate=48.0e3, upce=0, mthresh=-10.0, offs=50.e3, flist="", dfifo="multimode_fifo", mbw=2.0e3, deemph=75.0e-6, dmode="NFM1"):
grc_wxgui.top_block_gui.__init__(self, title="Multimode Radio Receiver")
_icon_path = "/usr/share/icons/hicolor/32x32/apps/gnuradio-grc.png"
self.SetIcon(wx.Icon(_icon_path, wx.BITMAP_TYPE_ANY))
##################################################
# Parameters
##################################################
self.ahw = ahw
self.freq = freq
self.ppm = ppm
self.vol = vol
self.ftune = ftune
self.xftune = xftune
self.srate = srate
self.upclo = upclo
self.devinfo = devinfo
self.agc = agc
self.arate = arate
self.upce = upce
self.mthresh = mthresh
self.offs = offs
self.flist = flist
self.dfifo = dfifo
self.mbw = mbw
self.deemph = deemph
self.dmode = dmode
##################################################
# Variables
##################################################
self.sc_list_str = sc_list_str = flist
self.zoom = zoom = 1
self.thresh = thresh = mthresh
self.scan_rate = scan_rate = 15
self.scan_power = scan_power = 0
self.sc_low = sc_low = 150e6
self.sc_listm = sc_listm = False
self.sc_list = sc_list = eval("["+sc_list_str+"]")
self.sc_incr = sc_incr = 12.5e3
self.sc_high = sc_high = 300e6
self.sc_ena = sc_ena = False
self.samp_rate = samp_rate = int(mh.get_good_rate(devinfo,srate))
self.rf_power = rf_power = 0
self.ifreq = ifreq = freq
self.zoomed_lp = zoomed_lp = (samp_rate/2.1)/zoom
self.wbfm = wbfm = 200e3
self.rf_d_power = rf_d_power = 0
self.mode = mode = dmode
self.logpower = logpower = math.log10(rf_power+1.0e-14)*10.0
self.cur_freq = cur_freq = mh.scan_freq_out(sc_ena,sc_low,sc_high,freq,ifreq,scan_power+1.0e-14,thresh,sc_incr,scan_rate,sc_listm,sc_list)
self.bw = bw = mbw
self.audio_int_rate = audio_int_rate = 40e3
self.zoom_taps = zoom_taps = firdes.low_pass(1.0,samp_rate,zoomed_lp,zoomed_lp/3,firdes.WIN_HAMMING,6.76)
self.xfine = xfine = xftune
self.volume = volume = vol
self.variable_static_text_1 = variable_static_text_1 = cur_freq
self.variable_static_text_0_0 = variable_static_text_0_0 = samp_rate
self.variable_static_text_0 = variable_static_text_0 = float(int(math.log10(rf_d_power+1.0e-14)*100.0)/10.0)
self.upc_offset = upc_offset = upclo
self.upc = upc = upce
self.ssbo = ssbo = -bw/2 if mode == "LSB" else 0.0
self.sc_list_len = sc_list_len = len(sc_list)
self.rfgain = rfgain = 25
self.record_file = record_file = "recording.wav"
self.record = record = False
self.offset = offset = offs
self.muted = muted = 0.0 if logpower >= thresh else 1
self.main_taps = main_taps = firdes.low_pass(1.0,wbfm,mh.get_mode_deviation(mode,bw)*1.05,mh.get_mode_deviation(mode,bw)/2.0,firdes.WIN_HAMMING,6.76)
self.k = k = wbfm/(2*math.pi*mh.get_mode_deviation(mode,bw))
self.iagc = iagc = agc
self.freq_update = freq_update = 0
self.fine = fine = ftune
self.digi_rate = digi_rate = 50e3
self.aratio = aratio = int(wbfm/audio_int_rate)
##################################################
# Blocks
##################################################
self.rf_probe = gr.probe_avg_mag_sqrd_c(0, 0.015)
self.Main = self.Main = wx.Notebook(self.GetWin(), style=wx.NB_TOP)
self.Main.AddPage(grc_wxgui.Panel(self.Main), "Main Controls")
self.Main.AddPage(grc_wxgui.Panel(self.Main), "Scan/Upconv Controls")
self.Add(self.Main)
self._zoom_chooser = forms.drop_down(
parent=self.Main.GetPage(0).GetWin(),
value=self.zoom,
callback=self.set_zoom,
label="Spectral Zoom Ratio",
choices=[1, 2, 5, 10, 20, 50, 100],
labels=[],
)
self.Main.GetPage(0).GridAdd(self._zoom_chooser, 1, 4, 1, 1)
_xfine_sizer = wx.BoxSizer(wx.VERTICAL)
self._xfine_text_box = forms.text_box(
parent=self.Main.GetPage(0).GetWin(),
sizer=_xfine_sizer,
value=self.xfine,
callback=self.set_xfine,
label="Extra Fine Tuning",
converter=forms.float_converter(),
proportion=0,
)
self._xfine_slider = forms.slider(
parent=self.Main.GetPage(0).GetWin(),
sizer=_xfine_sizer,
value=self.xfine,
callback=self.set_xfine,
minimum=-1.0e3,
maximum=1.0e3,
num_steps=200,
style=wx.SL_HORIZONTAL,
cast=float,
proportion=1,
)
self.Main.GetPage(0).GridAdd(_xfine_sizer, 0, 3, 1, 1)
_volume_sizer = wx.BoxSizer(wx.VERTICAL)
self._volume_text_box = forms.text_box(
parent=self.Main.GetPage(0).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.Main.GetPage(0).GetWin(),
sizer=_volume_sizer,
value=self.volume,
callback=self.set_volume,
minimum=1.0,
maximum=10.0,
num_steps=100,
style=wx.SL_HORIZONTAL,
cast=float,
proportion=1,
)
self.Main.GetPage(0).GridAdd(_volume_sizer, 0, 0, 1, 1)
self._upc_offset_text_box = forms.text_box(
parent=self.Main.GetPage(1).GetWin(),
value=self.upc_offset,
callback=self.set_upc_offset,
label="Upconv. LO Freq",
converter=forms.float_converter(),
)
self.Main.GetPage(1).GridAdd(self._upc_offset_text_box, 3, 2, 1, 2)
self._upc_check_box = forms.check_box(
parent=self.Main.GetPage(1).GetWin(),
value=self.upc,
callback=self.set_upc,
label="Ext. Upconv.",
true=1,
false=0,
)
self.Main.GetPage(1).GridAdd(self._upc_check_box, 3, 0, 1, 1)
_rfgain_sizer = wx.BoxSizer(wx.VERTICAL)
self._rfgain_text_box = forms.text_box(
parent=self.Main.GetPage(0).GetWin(),
sizer=_rfgain_sizer,
value=self.rfgain,
callback=self.set_rfgain,
label="RF Gain",
converter=forms.float_converter(),
proportion=0,
)
self._rfgain_slider = forms.slider(
parent=self.Main.GetPage(0).GetWin(),
sizer=_rfgain_sizer,
value=self.rfgain,
callback=self.set_rfgain,
minimum=0,
maximum=50,
num_steps=200,
style=wx.SL_HORIZONTAL,
cast=float,
proportion=1,
)
self.Main.GetPage(0).GridAdd(_rfgain_sizer, 2, 1, 1, 1)
self._record_file_text_box = forms.text_box(
parent=self.Main.GetPage(0).GetWin(),
value=self.record_file,
callback=self.set_record_file,
label="Recording Filename",
converter=forms.str_converter(),
)
self.Main.GetPage(0).GridAdd(self._record_file_text_box, 2, 3, 1, 3)
self._record_check_box = forms.check_box(
parent=self.Main.GetPage(0).GetWin(),
value=self.record,
callback=self.set_record,
label="Record",
true=True,
false=False,
)
self.Main.GetPage(0).GridAdd(self._record_check_box, 2, 2, 1, 1)
_offset_sizer = wx.BoxSizer(wx.VERTICAL)
self._offset_text_box = forms.text_box(
parent=self.Main.GetPage(0).GetWin(),
sizer=_offset_sizer,
value=self.offset,
callback=self.set_offset,
label="LO Offset",
converter=forms.float_converter(),
proportion=0,
)
self._offset_slider = forms.slider(
parent=self.Main.GetPage(0).GetWin(),
sizer=_offset_sizer,
value=self.offset,
callback=self.set_offset,
minimum=25e3,
maximum=500e3,
num_steps=200,
style=wx.SL_HORIZONTAL,
cast=float,
proportion=1,
)
self.Main.GetPage(0).GridAdd(_offset_sizer, 1, 3, 1, 1)
self._mode_chooser = forms.drop_down(
parent=self.Main.GetPage(0).GetWin(),
value=self.mode,
callback=self.set_mode,
label="Mode",
choices=mh.get_modes_values(),
labels=mh.get_modes_names(),
)
self.Main.GetPage(0).GridAdd(self._mode_chooser, 0, 4, 1, 1)
self._iagc_check_box = forms.check_box(
parent=self.Main.GetPage(0).GetWin(),
value=self.iagc,
callback=self.set_iagc,
label="AGC",
true=1,
false=0,
)
self.Main.GetPage(0).GridAdd(self._iagc_check_box, 2, 0, 1, 1)
def _freq_update_probe():
while True:
val = self.rf_probe.level()
try: self.set_freq_update(val)
except AttributeError, e: pass
time.sleep(1.0/(1.0/(2.5)))
_freq_update_thread = threading.Thread(target=_freq_update_probe)
_freq_update_thread.daemon = True
_freq_update_thread.start()
_fine_sizer = wx.BoxSizer(wx.VERTICAL)
self._fine_text_box = forms.text_box(
parent=self.Main.GetPage(0).GetWin(),
sizer=_fine_sizer,
value=self.fine,
callback=self.set_fine,
label="Fine Tuning",
converter=forms.float_converter(),
proportion=0,
)
self._fine_slider = forms.slider(
parent=self.Main.GetPage(0).GetWin(),
sizer=_fine_sizer,
value=self.fine,
callback=self.set_fine,
minimum=-35e3,
maximum=35e3,
num_steps=100,
style=wx.SL_HORIZONTAL,
cast=float,
proportion=1,
)
self.Main.GetPage(0).GridAdd(_fine_sizer, 0, 2, 1, 1)
self.display_probe = gr.probe_avg_mag_sqrd_c(0, 0.002)
_bw_sizer = wx.BoxSizer(wx.VERTICAL)
self._bw_text_box = forms.text_box(
parent=self.Main.GetPage(0).GetWin(),
sizer=_bw_sizer,
value=self.bw,
callback=self.set_bw,
label="AM/SSB Bandwidth",
converter=forms.float_converter(),
proportion=0,
)
self._bw_slider = forms.slider(
parent=self.Main.GetPage(0).GetWin(),
sizer=_bw_sizer,
value=self.bw,
callback=self.set_bw,
minimum=1.0e3,
maximum=audio_int_rate/2,
num_steps=100,
style=wx.SL_HORIZONTAL,
cast=float,
proportion=1,
)
self.Main.GetPage(0).GridAdd(_bw_sizer, 1, 2, 1, 1)
self.wxgui_waterfallsink2_0 = waterfallsink2.waterfall_sink_c(
self.Main.GetPage(0).GetWin(),
baseband_freq=mh.get_last_returned(freq_update),
dynamic_range=40,
ref_level=0,
ref_scale=2.0,
sample_rate=samp_rate/zoom,
fft_size=1024,
fft_rate=4,
average=True,
avg_alpha=None,
title="Spectrogram",
win=window.hamming,
)
self.Main.GetPage(0).Add(self.wxgui_waterfallsink2_0.win)
def wxgui_waterfallsink2_0_callback(x, y):
self.set_freq(x)
self.wxgui_waterfallsink2_0.set_callback(wxgui_waterfallsink2_0_callback)
self.wxgui_fftsink2_0 = fftsink2.fft_sink_c(
self.Main.GetPage(0).GetWin(),
baseband_freq=mh.get_last_returned(freq_update),
y_per_div=10,
y_divs=10,
ref_level=0,
ref_scale=2.0,
sample_rate=samp_rate/zoom,
fft_size=1024,
fft_rate=4,
average=True,
avg_alpha=0.1,
title="Panorama",
peak_hold=False,
win=window.hamming,
)
self.Main.GetPage(0).Add(self.wxgui_fftsink2_0.win)
def wxgui_fftsink2_0_callback(x, y):
self.set_freq(x)
self.wxgui_fftsink2_0.set_callback(wxgui_fftsink2_0_callback)
self._variable_static_text_1_static_text = forms.static_text(
parent=self.Main.GetPage(1).GetWin(),
value=self.variable_static_text_1,
callback=self.set_variable_static_text_1,
label="Current Scan Freq",
converter=forms.float_converter(),
)
self.Main.GetPage(1).GridAdd(self._variable_static_text_1_static_text, 0, 5, 1, 2)
self._variable_static_text_0_0_static_text = forms.static_text(
parent=self.Main.GetPage(0).GetWin(),
value=self.variable_static_text_0_0,
callback=self.set_variable_static_text_0_0,
label="Actual srate",
converter=forms.float_converter(),
)
self.Main.GetPage(0).GridAdd(self._variable_static_text_0_0_static_text, 1, 5, 1, 1)
self._variable_static_text_0_static_text = forms.static_text(
parent=self.Main.GetPage(0).GetWin(),
value=self.variable_static_text_0,
callback=self.set_variable_static_text_0,
label="RF Level",
converter=forms.float_converter(),
)
self.Main.GetPage(0).GridAdd(self._variable_static_text_0_static_text, 1, 0, 1, 1)
_thresh_sizer = wx.BoxSizer(wx.VERTICAL)
self._thresh_text_box = forms.text_box(
parent=self.Main.GetPage(0).GetWin(),
sizer=_thresh_sizer,
value=self.thresh,
callback=self.set_thresh,
label="Mute Threshold",
converter=forms.float_converter(),
proportion=0,
)
self._thresh_slider = forms.slider(
parent=self.Main.GetPage(0).GetWin(),
sizer=_thresh_sizer,
value=self.thresh,
callback=self.set_thresh,
minimum=-50,
maximum=10,
num_steps=100,
style=wx.SL_HORIZONTAL,
cast=float,
proportion=1,
)
self.Main.GetPage(0).GridAdd(_thresh_sizer, 1, 1, 1, 1)
def _scan_power_probe():
while True:
val = self.rf_probe.level()
try: self.set_scan_power(val)
except AttributeError, e: pass
time.sleep(1.0/(scan_rate))
_scan_power_thread = threading.Thread(target=_scan_power_probe)
_scan_power_thread.daemon = True
_scan_power_thread.start()
self._sc_low_text_box = forms.text_box(
parent=self.Main.GetPage(1).GetWin(),
value=self.sc_low,
callback=self.set_sc_low,
label="Scan Low",
converter=forms.float_converter(),
)
self.Main.GetPage(1).GridAdd(self._sc_low_text_box, 0, 1, 1, 1)
self._sc_listm_check_box = forms.check_box(
parent=self.Main.GetPage(1).GetWin(),
value=self.sc_listm,
callback=self.set_sc_listm,
label="Scan List Mode",
true=True,
false=False,
)
self.Main.GetPage(1).GridAdd(self._sc_listm_check_box, 2, 0, 1, 1)
self._sc_list_str_text_box = forms.text_box(
parent=self.Main.GetPage(1).GetWin(),
value=self.sc_list_str,
callback=self.set_sc_list_str,
label="Scan List",
converter=forms.str_converter(),
)
self.Main.GetPage(1).GridAdd(self._sc_list_str_text_box, 2, 1, 1, 5)
self._sc_incr_chooser = forms.drop_down(
parent=self.Main.GetPage(1).GetWin(),
value=self.sc_incr,
callback=self.set_sc_incr,
label="Scan Increment (Hz)",
choices=[5.0e3,6.25e3,10.0e3,12.5e3,15e3,25e3],
labels=[],
)
self.Main.GetPage(1).GridAdd(self._sc_incr_chooser, 0, 0, 1, 1)
self._sc_high_text_box = forms.text_box(
parent=self.Main.GetPage(1).GetWin(),
value=self.sc_high,
callback=self.set_sc_high,
label="Scan High",
converter=forms.float_converter(),
)
self.Main.GetPage(1).GridAdd(self._sc_high_text_box, 0, 2, 1, 1)
self._sc_ena_check_box = forms.check_box(
parent=self.Main.GetPage(1).GetWin(),
value=self.sc_ena,
callback=self.set_sc_ena,
label="Scan Enable",
true=True,
false=False,
)
self.Main.GetPage(1).GridAdd(self._sc_ena_check_box, 0, 3, 1, 1)
def _rf_power_probe():
while True:
val = self.rf_probe.level()
try: self.set_rf_power(val)
except AttributeError, e: pass
time.sleep(1.0/(10))
_rf_power_thread = threading.Thread(target=_rf_power_probe)
_rf_power_thread.daemon = True
_rf_power_thread.start()
def _rf_d_power_probe():
while True:
val = self.display_probe.level()
try: self.set_rf_d_power(val)
except AttributeError, e: pass
time.sleep(1.0/(5))
_rf_d_power_thread = threading.Thread(target=_rf_d_power_probe)
_rf_d_power_thread.daemon = True
_rf_d_power_thread.start()
self.osmosdr_source_c_0 = osmosdr.source_c( args="nchan=" + str(1) + " " + devinfo )
self.osmosdr_source_c_0.set_sample_rate(samp_rate)
self.osmosdr_source_c_0.set_center_freq(cur_freq+offset+(upc_offset*float(upc)), 0)
self.osmosdr_source_c_0.set_freq_corr(ppm, 0)
self.osmosdr_source_c_0.set_gain_mode(iagc, 0)
self.osmosdr_source_c_0.set_gain(25 if iagc == 1 else rfgain, 0)
self.osmosdr_source_c_0.set_if_gain(20, 0)
self._ifreq_text_box = forms.text_box(
parent=self.Main.GetPage(0).GetWin(),
value=self.ifreq,
callback=self.set_ifreq,
label="Frequency",
converter=forms.float_converter(),
)
self.Main.GetPage(0).GridAdd(self._ifreq_text_box, 0, 1, 1, 1)
self.gr_wavfile_sink_0 = gr.wavfile_sink("/dev/null" if record == False else record_file, 1, int(audio_int_rate), 8)
self.gr_quadrature_demod_cf_0 = gr.quadrature_demod_cf(k)
self.gr_multiply_const_vxx_2 = gr.multiply_const_vff((1.0 if mh.get_mode_type(mode) == "FM" else 0.0, ))
self.gr_multiply_const_vxx_1 = gr.multiply_const_vff((0.0 if muted else volume/4.5, ))
self.gr_multiply_const_vxx_0_0_0 = gr.multiply_const_vff((0.85 if mh.get_mode_type(mode) == "AM" else 0.0, ))
self.gr_multiply_const_vxx_0_0 = gr.multiply_const_vff((0.85 if mh.get_mode_type(mode) == "SSB" else 0.0, ))
self.gr_multiply_const_vxx_0 = gr.multiply_const_vcc(((1.0/math.sqrt(mh.get_mode_deviation(mode,bw))*250), ))
self.gr_keep_one_in_n_1 = gr.keep_one_in_n(gr.sizeof_gr_complex*1, aratio)
self.gr_keep_one_in_n_0_0 = gr.keep_one_in_n(gr.sizeof_gr_complex*1, zoom)
self.gr_keep_one_in_n_0 = gr.keep_one_in_n(gr.sizeof_gr_complex*1, int(wbfm/digi_rate))
self.gr_freq_xlating_fir_filter_xxx_0_1 = gr.freq_xlating_fir_filter_ccc(1, (1.0, ), (offset+fine+xfine)/(samp_rate/1.0e6), samp_rate)
self.gr_fractional_interpolator_xx_0 = gr.fractional_interpolator_ff(0, audio_int_rate/arate)
self.gr_file_sink_0 = gr.file_sink(gr.sizeof_gr_complex*1, "/dev/null" if mh.get_mode_type(mode) != "DIG" else dfifo)
self.gr_file_sink_0.set_unbuffered(True)
self.gr_fft_filter_xxx_3 = gr.fft_filter_ccc(1, (zoom_taps), 1)
self.gr_fft_filter_xxx_2_0 = gr.fft_filter_fff(5, (firdes.low_pass(1.0,wbfm,14.5e3,8.5e3,firdes.WIN_HAMMING,6.76)), 1)
self.gr_fft_filter_xxx_2 = gr.fft_filter_ccc(1, (main_taps), 1)
self.gr_fft_filter_xxx_0 = gr.fft_filter_ccc(int(samp_rate/wbfm), (firdes.low_pass(1.0,samp_rate,98.5e3,66e3,firdes.WIN_HAMMING,6.76)), 1)
self.gr_feedforward_agc_cc_0 = gr.feedforward_agc_cc(1024, 0.75)
self.gr_complex_to_real_0 = gr.complex_to_real(1)
self.gr_complex_to_mag_squared_0 = gr.complex_to_mag_squared(1)
self.gr_add_xx_0 = gr.add_vff(1)
self.blks2_fm_deemph_0 = blks2.fm_deemph(fs=audio_int_rate, tau=deemph)
self.audio_sink_0 = audio.sink(int(arate), ahw, True)
##################################################
# Connections
##################################################
self.connect((self.gr_multiply_const_vxx_0_0, 0), (self.gr_add_xx_0, 1))
self.connect((self.gr_fractional_interpolator_xx_0, 0), (self.gr_multiply_const_vxx_1, 0))
self.connect((self.gr_multiply_const_vxx_1, 0), (self.audio_sink_0, 0))
self.connect((self.gr_multiply_const_vxx_1, 0), (self.audio_sink_0, 1))
self.connect((self.gr_feedforward_agc_cc_0, 0), (self.gr_complex_to_mag_squared_0, 0))
self.connect((self.osmosdr_source_c_0, 0), (self.gr_freq_xlating_fir_filter_xxx_0_1, 0))
self.connect((self.gr_multiply_const_vxx_0_0_0, 0), (self.gr_add_xx_0, 2))
self.connect((self.gr_feedforward_agc_cc_0, 0), (self.gr_complex_to_real_0, 0))
self.connect((self.gr_complex_to_real_0, 0), (self.gr_multiply_const_vxx_0_0, 0))
self.connect((self.gr_multiply_const_vxx_2, 0), (self.gr_add_xx_0, 0))
self.connect((self.gr_complex_to_mag_squared_0, 0), (self.gr_multiply_const_vxx_0_0_0, 0))
self.connect((self.gr_multiply_const_vxx_0, 0), (self.display_probe, 0))
self.connect((self.gr_multiply_const_vxx_0, 0), (self.rf_probe, 0))
self.connect((self.gr_add_xx_0, 0), (self.gr_fractional_interpolator_xx_0, 0))
self.connect((self.gr_add_xx_0, 0), (self.gr_wavfile_sink_0, 0))
self.connect((self.gr_freq_xlating_fir_filter_xxx_0_1, 0), (self.gr_fft_filter_xxx_0, 0))
self.connect((self.gr_keep_one_in_n_0, 0), (self.gr_file_sink_0, 0))
self.connect((self.gr_freq_xlating_fir_filter_xxx_0_1, 0), (self.gr_fft_filter_xxx_3, 0))
self.connect((self.gr_fft_filter_xxx_3, 0), (self.gr_keep_one_in_n_0_0, 0))
self.connect((self.gr_keep_one_in_n_0_0, 0), (self.wxgui_fftsink2_0, 0))
self.connect((self.gr_keep_one_in_n_0_0, 0), (self.wxgui_waterfallsink2_0, 0))
self.connect((self.blks2_fm_deemph_0, 0), (self.gr_multiply_const_vxx_2, 0))
self.connect((self.gr_quadrature_demod_cf_0, 0), (self.gr_fft_filter_xxx_2_0, 0))
self.connect((self.gr_fft_filter_xxx_2, 0), (self.gr_keep_one_in_n_0, 0))
self.connect((self.gr_fft_filter_xxx_2, 0), (self.gr_multiply_const_vxx_0, 0))
self.connect((self.gr_fft_filter_xxx_0, 0), (self.gr_fft_filter_xxx_2, 0))
self.connect((self.gr_keep_one_in_n_1, 0), (self.gr_feedforward_agc_cc_0, 0))
self.connect((self.gr_fft_filter_xxx_2, 0), (self.gr_keep_one_in_n_1, 0))
self.connect((self.gr_fft_filter_xxx_2, 0), (self.gr_quadrature_demod_cf_0, 0))
self.connect((self.gr_fft_filter_xxx_2_0, 0), (self.blks2_fm_deemph_0, 0))
def __init__(self):
gr.top_block.__init__(self, "FM radio to test FCDPROplus")
Qt.QWidget.__init__(self)
self.setWindowTitle("FM radio to test FCDPROplus")
self.setWindowIcon(Qt.QIcon.fromTheme('gnuradio-grc'))
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)
##################################################
# Variables
##################################################
self.samp_rate = samp_rate = 192000
self.Volume = Volume = 1
self.RxFrequency = RxFrequency = 94300
self.PPM = PPM = 0
self.Mixergain = Mixergain = 1
self.Lna = Lna = 1
self.Ifgain = Ifgain = 0
##################################################
# Blocks
##################################################
self._Volume_layout = Qt.QHBoxLayout()
self._Volume_layout.addWidget(Qt.QLabel("Volume"+": "))
self._Volume_counter = Qwt.QwtCounter()
self._Volume_counter.setRange(1, 50, 1)
self._Volume_counter.setNumButtons(2)
self._Volume_counter.setMinimumWidth(45)
self._Volume_counter.setValue(self.Volume)
self._Volume_layout.addWidget(self._Volume_counter)
self._Volume_counter.valueChanged.connect(self.set_Volume)
self.top_grid_layout.addLayout(self._Volume_layout, 0,5,1,1)
self._RxFrequency_layout = Qt.QHBoxLayout()
self._RxFrequency_layout.addWidget(Qt.QLabel("Set Frequency "+": "))
self._RxFrequency_counter = Qwt.QwtCounter()
self._RxFrequency_counter.setRange(3000, 100000, 1)
self._RxFrequency_counter.setNumButtons(2)
self._RxFrequency_counter.setMinimumWidth(200)
self._RxFrequency_counter.setValue(self.RxFrequency)
self._RxFrequency_layout.addWidget(self._RxFrequency_counter)
self._RxFrequency_counter.valueChanged.connect(self.set_RxFrequency)
self.top_grid_layout.addLayout(self._RxFrequency_layout, 0,0,1,1)
self._PPM_layout = Qt.QHBoxLayout()
self._PPM_layout.addWidget(Qt.QLabel("set PPM"+": "))
self._PPM_counter = Qwt.QwtCounter()
self._PPM_counter.setRange(-100, 100, 1)
self._PPM_counter.setNumButtons(2)
self._PPM_counter.setMinimumWidth(40)
self._PPM_counter.setValue(self.PPM)
self._PPM_layout.addWidget(self._PPM_counter)
self._PPM_counter.valueChanged.connect(self.set_PPM)
self.top_grid_layout.addLayout(self._PPM_layout, 0,6,1,1)
self._Mixergain_options = (0, 1, )
self._Mixergain_labels = ("Off", "On", )
self._Mixergain_tool_bar = Qt.QToolBar(self)
self._Mixergain_tool_bar.addWidget(Qt.QLabel("Mixergain"+": "))
self._Mixergain_combo_box = Qt.QComboBox()
self._Mixergain_tool_bar.addWidget(self._Mixergain_combo_box)
for label in self._Mixergain_labels: self._Mixergain_combo_box.addItem(label)
self._Mixergain_callback = lambda i: self._Mixergain_combo_box.setCurrentIndex(self._Mixergain_options.index(i))
self._Mixergain_callback(self.Mixergain)
self._Mixergain_combo_box.currentIndexChanged.connect(
lambda i: self.set_Mixergain(self._Mixergain_options[i]))
self.top_grid_layout.addWidget(self._Mixergain_tool_bar, 0,2,1,1)
self._Lna_options = (0, 1, )
self._Lna_labels = ("Off", "On", )
self._Lna_tool_bar = Qt.QToolBar(self)
self._Lna_tool_bar.addWidget(Qt.QLabel("Lna"+": "))
self._Lna_combo_box = Qt.QComboBox()
self._Lna_tool_bar.addWidget(self._Lna_combo_box)
for label in self._Lna_labels: self._Lna_combo_box.addItem(label)
self._Lna_callback = lambda i: self._Lna_combo_box.setCurrentIndex(self._Lna_options.index(i))
self._Lna_callback(self.Lna)
self._Lna_combo_box.currentIndexChanged.connect(
lambda i: self.set_Lna(self._Lna_options[i]))
self.top_grid_layout.addWidget(self._Lna_tool_bar, 0,1,1,1)
self._Ifgain_layout = Qt.QHBoxLayout()
self._Ifgain_layout.addWidget(Qt.QLabel("Ifgain"+": "))
self._Ifgain_counter = Qwt.QwtCounter()
self._Ifgain_counter.setRange(0, 59, 1)
self._Ifgain_counter.setNumButtons(2)
self._Ifgain_counter.setMinimumWidth(45)
self._Ifgain_counter.setValue(self.Ifgain)
self._Ifgain_layout.addWidget(self._Ifgain_counter)
self._Ifgain_counter.valueChanged.connect(self.set_Ifgain)
self.top_grid_layout.addLayout(self._Ifgain_layout, 0,3,1,1)
self.qtgui_time_sink_x_0 = qtgui.time_sink_f(
1024, #size
samp_rate/4, #bw
"QT GUI Plot", #name
1 #number of inputs
)
self._qtgui_time_sink_x_0_win = sip.wrapinstance(self.qtgui_time_sink_x_0.pyqwidget(), Qt.QWidget)
self.top_grid_layout.addWidget(self._qtgui_time_sink_x_0_win, 1,4,1,3)
self.qtgui_sink_x_0 = qtgui.sink_c(
1024, #fftsize
firdes.WIN_BLACKMAN_hARRIS, #wintype
RxFrequency*1000, #fc
samp_rate, #bw
"QT GUI Plot", #name
True, #plotfreq
True, #plotwaterfall
False, #plottime
False, #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_grid_layout.addWidget(self._qtgui_sink_x_0_win, 1,0,1,4)
self.low_pass_filter_1 = gr.fir_filter_fff(4, firdes.low_pass(
1, samp_rate, 16000, 300, firdes.WIN_HAMMING, 6.76))
self.low_pass_filter_0 = gr.fir_filter_ccf(1, firdes.low_pass(
5, samp_rate, 40000, 300, firdes.WIN_HAMMING, 6.76))
self.gr_quadrature_demod_cf_0 = gr.quadrature_demod_cf(1)
self.gr_multiply_const_vxx_0 = gr.multiply_const_vff((Volume, ))
self.fcdproplus_fcdproplus_0 = fcdproplus.fcdproplus("",1000)
self.fcdproplus_fcdproplus_0.set_lna(Lna)
self.fcdproplus_fcdproplus_0.set_mixer_gain(Mixergain)
self.fcdproplus_fcdproplus_0.set_if_gain(int(Ifgain))
self.fcdproplus_fcdproplus_0.set_freq_corr(int( PPM))
self.fcdproplus_fcdproplus_0.set_freq(RxFrequency)
self.blks2_fm_deemph_0 = blks2.fm_deemph(fs=samp_rate, tau=25e-6)
self.audio_sink_0 = audio.sink(48000, "default", True)
##################################################
# Connections
##################################################
self.connect((self.fcdproplus_fcdproplus_0, 0), (self.qtgui_sink_x_0, 0))
self.connect((self.fcdproplus_fcdproplus_0, 0), (self.low_pass_filter_0, 0))
self.connect((self.gr_multiply_const_vxx_0, 0), (self.audio_sink_0, 0))
self.connect((self.gr_multiply_const_vxx_0, 0), (self.audio_sink_0, 1))
self.connect((self.gr_multiply_const_vxx_0, 0), (self.qtgui_time_sink_x_0, 0))
self.connect((self.low_pass_filter_0, 0), (self.gr_quadrature_demod_cf_0, 0))
self.connect((self.low_pass_filter_1, 0), (self.gr_multiply_const_vxx_0, 0))
self.connect((self.gr_quadrature_demod_cf_0, 0), (self.blks2_fm_deemph_0, 0))
self.connect((self.blks2_fm_deemph_0, 0), (self.low_pass_filter_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=40,
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="",
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 = 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 = blks2.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 = gr.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 = gr.firdes.low_pass(
1.0, # gain
demod_rate, # sampling rate
max_sca_dev, # cutoff freq
max_sca_dev / 3, # trans. band
gr.firdes.WIN_HANN) # filter type
self.ddc = gr.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 = gr.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 = gr.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
gr.firdes.WIN_HAMMING)
# input: float; output: float
self.audio_filter = gr.fir_filter_fff(audio_decim, audio_coeffs)
# Create deemphasis block that is applied after SCA demodulation
self.deemph = blks2.fm_deemph(audio_rate, sca_tau)
self.volume_control = gr.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="Stereo FM receiver and RDS Decoder")
##################################################
# 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=gr.gr_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(
device_addr="",
stream_args=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.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.gr_pll_freqdet_cf_0 = gr.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.gr_multiply_const_vxx_0_0 = gr.multiply_const_vff(
(10**(1. * volume / 10), ))
self.gr_multiply_const_vxx_0 = gr.multiply_const_vff(
(10**(1. * volume / 10), ))
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_6 = filter.fir_filter_fff(
audio_decim, (firdes.low_pass(1, baseband_rate, 1.5e3, 2e3,
firdes.WIN_HAMMING)))
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_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_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_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_1 = filter.fir_filter_fff(
audio_decim, (firdes.low_pass(1.0, baseband_rate, 15e3, 1e3,
firdes.WIN_HAMMING)))
self.fir_filter_xxx_0 = filter.fir_filter_ccc(1, (firdes.low_pass(
1.0, baseband_rate, 80e3, 35e3, firdes.WIN_HAMMING)))
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_add_xx_0 = blocks.add_vff(1)
self.blks2_rational_resampler_xxx_0_0 = blks2.rational_resampler_fff(
interpolation=audio_rate,
decimation=audio_decim_rate,
taps=None,
fractional_bw=None,
)
self.blks2_rational_resampler_xxx_0 = blks2.rational_resampler_fff(
interpolation=audio_rate,
decimation=audio_decim_rate,
taps=None,
fractional_bw=None,
)
self.blks2_fm_deemph_0_0_0 = blks2.fm_deemph(fs=baseband_rate,
tau=75e-6)
self.blks2_fm_deemph_0_0 = blks2.fm_deemph(fs=baseband_rate, tau=75e-6)
self.audio_sink_0 = audio.sink(audio_rate, "", True)
##################################################
# 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_0, 0), (self.gr_pll_freqdet_cf_0, 0))
self.connect((self.gr_pll_freqdet_cf_0, 0), (self.fir_filter_xxx_1, 0))
self.connect((self.gr_pll_freqdet_cf_0, 0), (self.fir_filter_xxx_2, 0))
self.connect((self.gr_pll_freqdet_cf_0, 0), (self.fir_filter_xxx_4, 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.freq_xlating_fir_filter_xxx_0, 0),
(self.wxgui_fftsink2_0, 0))
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_pll_freqdet_cf_0, 0), (self.fir_filter_xxx_3, 0))
self.connect((self.gr_multiply_const_vxx_0, 0),
(self.blks2_rational_resampler_xxx_0, 0))
self.connect((self.blks2_rational_resampler_xxx_0, 0),
(self.audio_sink_0, 0))
self.connect((self.blks2_rational_resampler_xxx_0_0, 0),
(self.audio_sink_0, 1))
self.connect((self.gr_multiply_const_vxx_0_0, 0),
(self.blks2_rational_resampler_xxx_0_0, 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.blocks_multiply_xx_0_0, 0),
(self.wxgui_fftsink2_0_0_0_1_0_1, 0))
self.connect((self.blocks_sub_xx_0, 0), (self.blks2_fm_deemph_0_0, 0))
self.connect((self.blks2_fm_deemph_0_0, 0),
(self.gr_multiply_const_vxx_0_0, 0))
self.connect((self.blocks_add_xx_0, 0),
(self.blks2_fm_deemph_0_0_0, 0))
self.connect((self.blks2_fm_deemph_0_0_0, 0),
(self.gr_multiply_const_vxx_0, 0))
self.connect((self.gr_pll_freqdet_cf_0, 0),
(self.wxgui_fftsink2_0_0, 0))
def __init__(self): grc_wxgui.top_block_gui.__init__(self, title="Stereo FM receiver and RDS Decoder") ################################################## # 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=gr.gr_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( device_addr="", stream_args=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.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.gr_pll_freqdet_cf_0 = gr.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.gr_multiply_const_vxx_0_0 = gr.multiply_const_vff((10**(1.*volume/10), )) self.gr_multiply_const_vxx_0 = gr.multiply_const_vff((10**(1.*volume/10), )) 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_6 = filter.fir_filter_fff(audio_decim, (firdes.low_pass(1,baseband_rate,1.5e3,2e3,firdes.WIN_HAMMING))) 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_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_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_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_1 = filter.fir_filter_fff(audio_decim, (firdes.low_pass(1.0,baseband_rate,15e3,1e3,firdes.WIN_HAMMING))) self.fir_filter_xxx_0 = filter.fir_filter_ccc(1, (firdes.low_pass(1.0, baseband_rate, 80e3,35e3,firdes.WIN_HAMMING))) 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_add_xx_0 = blocks.add_vff(1) self.blks2_rational_resampler_xxx_0_0 = blks2.rational_resampler_fff( interpolation=audio_rate, decimation=audio_decim_rate, taps=None, fractional_bw=None, ) self.blks2_rational_resampler_xxx_0 = blks2.rational_resampler_fff( interpolation=audio_rate, decimation=audio_decim_rate, taps=None, fractional_bw=None, ) self.blks2_fm_deemph_0_0_0 = blks2.fm_deemph(fs=baseband_rate, tau=75e-6) self.blks2_fm_deemph_0_0 = blks2.fm_deemph(fs=baseband_rate, tau=75e-6) self.audio_sink_0 = audio.sink(audio_rate, "", True) ################################################## # 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_0, 0), (self.gr_pll_freqdet_cf_0, 0)) self.connect((self.gr_pll_freqdet_cf_0, 0), (self.fir_filter_xxx_1, 0)) self.connect((self.gr_pll_freqdet_cf_0, 0), (self.fir_filter_xxx_2, 0)) self.connect((self.gr_pll_freqdet_cf_0, 0), (self.fir_filter_xxx_4, 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.freq_xlating_fir_filter_xxx_0, 0), (self.wxgui_fftsink2_0, 0)) 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_pll_freqdet_cf_0, 0), (self.fir_filter_xxx_3, 0)) self.connect((self.gr_multiply_const_vxx_0, 0), (self.blks2_rational_resampler_xxx_0, 0)) self.connect((self.blks2_rational_resampler_xxx_0, 0), (self.audio_sink_0, 0)) self.connect((self.blks2_rational_resampler_xxx_0_0, 0), (self.audio_sink_0, 1)) self.connect((self.gr_multiply_const_vxx_0_0, 0), (self.blks2_rational_resampler_xxx_0_0, 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.blocks_multiply_xx_0_0, 0), (self.wxgui_fftsink2_0_0_0_1_0_1, 0)) self.connect((self.blocks_sub_xx_0, 0), (self.blks2_fm_deemph_0_0, 0)) self.connect((self.blks2_fm_deemph_0_0, 0), (self.gr_multiply_const_vxx_0_0, 0)) self.connect((self.blocks_add_xx_0, 0), (self.blks2_fm_deemph_0_0_0, 0)) self.connect((self.blks2_fm_deemph_0_0_0, 0), (self.gr_multiply_const_vxx_0, 0)) self.connect((self.gr_pll_freqdet_cf_0, 0), (self.wxgui_fftsink2_0_0, 0))