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@@ -25,30 +25,15 @@ class fm_radio(gr.top_block):
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def __init__(self):
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gr.top_block.__init__(self, "FM Radio Receiver", catch_exceptions=True)
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- # Variables
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- self.samp_rate = samp_rate = 2560000
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- self.channel_width_hertz = channel_width_hertz = 250000
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- self.audio_sample_rate_hertz = audio_sample_rate_hertz = 48000
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+ samp_rate = 2560000
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+ channel_width_hertz = 250000
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+ audio_sample_rate_hertz = 48000
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- # Blocks
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- self.rtlsdr_source_0 = osmosdr.source(args="numchan=" + str(1) + " " + "")
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- self.rtlsdr_source_0.set_time_unknown_pps(osmosdr.time_spec_t())
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+ self.rtlsdr_source_0 = osmosdr.source()
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self.rtlsdr_source_0.set_sample_rate(samp_rate)
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self.rtlsdr_source_0.set_center_freq((98.3 * 1e6), 0)
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- self.rtlsdr_source_0.set_freq_corr(0, 0)
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- self.rtlsdr_source_0.set_dc_offset_mode(0, 0)
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- self.rtlsdr_source_0.set_iq_balance_mode(0, 0)
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- self.rtlsdr_source_0.set_gain_mode(False, 0)
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- self.rtlsdr_source_0.set_gain(20, 0)
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- self.rtlsdr_source_0.set_if_gain(20, 0)
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- self.rtlsdr_source_0.set_bb_gain(20, 0)
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- self.rtlsdr_source_0.set_antenna("", 0)
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- self.rtlsdr_source_0.set_bandwidth(0, 0)
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self.rational_resampler_xxx_0 = filter.rational_resampler_fff(
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- interpolation=audio_sample_rate_hertz,
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- decimation=channel_width_hertz,
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- taps=[],
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- fractional_bw=0,
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+ interpolation=audio_sample_rate_hertz, decimation=channel_width_hertz
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)
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self.low_pass_filter_0 = filter.fir_filter_ccf(
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(int(samp_rate / channel_width_hertz)),
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@@ -60,7 +45,6 @@ class fm_radio(gr.top_block):
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audio_decimation=1,
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)
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- # Connections
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self.connect((self.analog_wfm_rcv_0, 0), (self.rational_resampler_xxx_0, 0))
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self.connect((self.low_pass_filter_0, 0), (self.analog_wfm_rcv_0, 0))
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self.connect((self.rational_resampler_xxx_0, 0), (self.audio_sink_0, 0))
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