def __init__(self):
gr.top_block.__init__(self, "FM Receiver")
##################################################
# Variables
##################################################
self.samp_rate = samp_rate = 96000
self.xlate_filter_taps = xlate_filter_taps = firdes.low_pass(1, samp_rate, 48000, 5000, firdes.WIN_HAMMING, 6.76)
self.sql_lev = sql_lev = -100
self.rf_gain = rf_gain = 20
self.freq = freq = 144800000
self.af_gain = af_gain = 2
self.sat_file_name = sat_file_name = "Undefined"
##################################################
# Blocks
##################################################
self.xlating_fir_filter = gr.freq_xlating_fir_filter_ccc(1, (xlate_filter_taps), 0, samp_rate)
self.nbfm_normal = blks2.nbfm_rx(
audio_rate=48000,
quad_rate=96000,
tau=75e-6,
max_dev=5e3,
)
self.low_pass_filter = gr.fir_filter_ccf(1, firdes.low_pass(
1, samp_rate, 12500, 1500, firdes.WIN_HAMMING, 6.76))
self.gr_simple_squelch_cc_0 = gr.simple_squelch_cc(sql_lev, 1)
self.gr_multiply_const_vxx_1 = gr.multiply_const_vff((af_gain, ))
self.fcd_source_c_1 = fcd.source_c("hw:1")
self.fcd_source_c_1.set_freq(freq)
self.fcd_source_c_1.set_freq_corr(-32)
self.audio_sink = audio.sink(48000, "", True)
self.wavfile_sink = gr.wavfile_sink(self.sat_file_name, 1, 11025, 16)
self.blks2_rational_resampler_xxx_0 = blks2.rational_resampler_fff(
interpolation=11025,
decimation=48000,
taps=None,
fractional_bw=None,
)
##################################################
# Connections
##################################################
self.connect((self.xlating_fir_filter, 0), (self.low_pass_filter, 0))
self.connect((self.low_pass_filter, 0), (self.gr_simple_squelch_cc_0, 0))
self.connect((self.gr_multiply_const_vxx_1, 0), (self.audio_sink, 1))
self.connect((self.gr_multiply_const_vxx_1, 0), (self.audio_sink, 0))
self.connect((self.gr_simple_squelch_cc_0, 0), (self.nbfm_normal, 0))
self.connect((self.nbfm_normal, 0), (self.gr_multiply_const_vxx_1, 0))
self.connect((self.fcd_source_c_1, 0), (self.xlating_fir_filter, 0))
self.connect((self.nbfm_normal, 0), (self.blks2_rational_resampler_xxx_0, 0))
self.connect((self.blks2_rational_resampler_xxx_0, 0), (self.wavfile_sink, 0))
def __init__(self):
gr.top_block.__init__(self, "CW/SSB Receiver")
##################################################
# Variables
##################################################
self.samp_rate = samp_rate = 96000
self.xlate_filter_taps = xlate_filter_taps = firdes.low_pass(1, samp_rate, 48000, 5000, firdes.WIN_HAMMING, 6.76)
self.sql_lev = sql_lev = -100
self.rf_gain = rf_gain = 20
self.pass_trans = pass_trans = 600
self.pass_low = pass_low = 300
self.pass_high = pass_high = 1200
self.freq = freq = 144800000
self.af_gain = af_gain = 5
self.sat_file_name = sat_file_name = "Undefined"
##################################################
# Blocks
##################################################
self.xlating_fir_filter = gr.freq_xlating_fir_filter_ccc(1, (xlate_filter_taps), 0, samp_rate)
self.gr_simple_squelch_cc_0 = gr.simple_squelch_cc(sql_lev, 1)
self.gr_multiply_const_vxx_0 = gr.multiply_const_vff((af_gain, ))
self.gr_complex_to_real_0 = gr.complex_to_real(1)
self.gr_agc2_xx_0 = gr.agc2_cc(1e-1, 20.8e-6, 0.3, 1.0, 0.0)
self.fcd_source_c_1 = fcd.source_c("hw:1")
self.fcd_source_c_1.set_freq(freq)
self.fcd_source_c_1.set_freq_corr(-10)
self.band_pass_filter_0 = gr.fir_filter_ccf(2, firdes.band_pass(
1, samp_rate, pass_low, pass_high, pass_trans, firdes.WIN_HAMMING, 6.76))
self.audio_sink = audio.sink(48000, "", True)
self.wavfile_sink = gr.wavfile_sink(self.sat_file_name, 1, 11025, 16)
self.blks2_rational_resampler_xxx_0 = blks2.rational_resampler_fff(
interpolation=11025,
decimation=48000,
taps=None,
fractional_bw=None,
)
##################################################
# Connections
##################################################
self.connect((self.fcd_source_c_1, 0), (self.xlating_fir_filter, 0))
self.connect((self.xlating_fir_filter, 0), (self.gr_simple_squelch_cc_0, 0))
self.connect((self.band_pass_filter_0, 0), (self.gr_agc2_xx_0, 0))
self.connect((self.gr_complex_to_real_0, 0), (self.gr_multiply_const_vxx_0, 0))
self.connect((self.gr_agc2_xx_0, 0), (self.gr_complex_to_real_0, 0))
self.connect((self.gr_simple_squelch_cc_0, 0), (self.band_pass_filter_0, 0))
self.connect((self.gr_multiply_const_vxx_0, 0), (self.audio_sink, 0))
self.connect((self.gr_multiply_const_vxx_0, 0), (self.audio_sink, 1))
self.connect((self.gr_complex_to_real_0, 0), (self.blks2_rational_resampler_xxx_0, 0))
self.connect((self.blks2_rational_resampler_xxx_0, 0), (self.wavfile_sink, 0))
def __init__(self):
gr.top_block.__init__(self, "FM Receiver")
##################################################
# Variables
##################################################
self.samp_rate = samp_rate = 96000
self.xlate_filter_taps = xlate_filter_taps = firdes.low_pass(1, samp_rate, 48000, 5000, firdes.WIN_HAMMING, 6.76)
self.sql_lev = sql_lev = -100
self.rf_gain = rf_gain = 20
self.freq = freq = 144800000
self.af_gain = af_gain = 2
##################################################
# Blocks
##################################################
self.xlating_fir_filter = gr.freq_xlating_fir_filter_ccc(1, (xlate_filter_taps), 0, samp_rate)
self.nbfm_normal = blks2.nbfm_rx(
audio_rate=48000,
quad_rate=96000,
tau=75e-6,
max_dev=5e3,
)
self.low_pass_filter = gr.fir_filter_ccf(1, firdes.low_pass(
1, samp_rate, 12500, 1500, firdes.WIN_HAMMING, 6.76))
self.gr_simple_squelch_cc_0 = gr.simple_squelch_cc(sql_lev, 1)
self.gr_multiply_const_vxx_1 = gr.multiply_const_vff((af_gain, ))
self.fcd_source_c_1 = fcd.source_c("hw:1")
self.fcd_source_c_1.set_freq(freq)
self.fcd_source_c_1.set_freq_corr(-32)
self.audio_sink = audio.sink(48000, "", True)
##################################################
# Connections
##################################################
self.connect((self.xlating_fir_filter, 0), (self.low_pass_filter, 0))
self.connect((self.low_pass_filter, 0), (self.gr_simple_squelch_cc_0, 0))
self.connect((self.gr_multiply_const_vxx_1, 0), (self.audio_sink, 1))
self.connect((self.gr_multiply_const_vxx_1, 0), (self.audio_sink, 0))
self.connect((self.gr_simple_squelch_cc_0, 0), (self.nbfm_normal, 0))
self.connect((self.nbfm_normal, 0), (self.gr_multiply_const_vxx_1, 0))
self.connect((self.fcd_source_c_1, 0), (self.xlating_fir_filter, 0))
def __init__(self):
gr.top_block.__init__(self, "CW/SSB Receiver")
##################################################
# Variables
##################################################
self.samp_rate = samp_rate = 96000
self.xlate_filter_taps = xlate_filter_taps = firdes.low_pass(1, samp_rate, 48000, 5000, firdes.WIN_HAMMING, 6.76)
self.sql_lev = sql_lev = -100
self.rf_gain = rf_gain = 20
self.pass_trans = pass_trans = 600
self.pass_low = pass_low = 300
self.pass_high = pass_high = 1200
self.freq = freq = 144800000
self.af_gain = af_gain = 5
##################################################
# Blocks
##################################################
self.xlating_fir_filter = gr.freq_xlating_fir_filter_ccc(1, (xlate_filter_taps), 0, samp_rate)
self.gr_simple_squelch_cc_0 = gr.simple_squelch_cc(sql_lev, 1)
self.gr_multiply_const_vxx_0 = gr.multiply_const_vff((af_gain, ))
self.gr_complex_to_real_0 = gr.complex_to_real(1)
self.gr_agc2_xx_0 = gr.agc2_cc(1e-1, 20.8e-6, 0.3, 1.0, 0.0)
self.fcd_source_c_1 = fcd.source_c("hw:1")
self.fcd_source_c_1.set_freq(freq)
self.fcd_source_c_1.set_freq_corr(-10)
self.band_pass_filter_0 = gr.fir_filter_ccf(2, firdes.band_pass(
1, samp_rate, pass_low, pass_high, pass_trans, firdes.WIN_HAMMING, 6.76))
self.audio_sink = audio.sink(48000, "", True)
##################################################
# Connections
##################################################
self.connect((self.fcd_source_c_1, 0), (self.xlating_fir_filter, 0))
self.connect((self.xlating_fir_filter, 0), (self.gr_simple_squelch_cc_0, 0))
self.connect((self.band_pass_filter_0, 0), (self.gr_agc2_xx_0, 0))
self.connect((self.gr_complex_to_real_0, 0), (self.gr_multiply_const_vxx_0, 0))
self.connect((self.gr_agc2_xx_0, 0), (self.gr_complex_to_real_0, 0))
self.connect((self.gr_simple_squelch_cc_0, 0), (self.band_pass_filter_0, 0))
self.connect((self.gr_multiply_const_vxx_0, 0), (self.audio_sink, 0))
self.connect((self.gr_multiply_const_vxx_0, 0), (self.audio_sink, 1))