waterfall fm_demod script
fm_demod script that also writes waterfall data (credit to surligas, I'm just committing) Also FFT needs to be added to CMakeLists.txt to build in some conditions. see also satnogs/gr-satnogs#42
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@ -137,7 +137,7 @@ endif()
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# components required to the list of GR_REQUIRED_COMPONENTS (in all
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# caps such as FILTER or FFT) and change the version to the minimum
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# API compatible version required.
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set(GR_REQUIRED_COMPONENTS RUNTIME)
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set(GR_REQUIRED_COMPONENTS RUNTIME FFT)
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find_package(Gnuradio "3.7.7" REQUIRED)
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if(NOT CPPUNIT_FOUND)
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@ -557,11 +557,11 @@ TX sampling rate</value>
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</param>
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<param>
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<key>_coordinate</key>
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<value>(736, 984)</value>
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<value>(744, 988)</value>
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</param>
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<param>
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<key>_rotation</key>
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<value>0</value>
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<value>180</value>
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</param>
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<param>
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<key>id</key>
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@ -2329,6 +2329,104 @@ we shift the LO a little further</value>
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<value>1000</value>
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</param>
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</block>
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<block>
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<key>satnogs_waterfall_sink</key>
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<param>
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<key>alias</key>
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<value></value>
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</param>
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<param>
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<key>center_freq</key>
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<value>0.0</value>
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</param>
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<param>
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<key>comment</key>
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<value></value>
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</param>
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<param>
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<key>affinity</key>
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<value></value>
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</param>
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<param>
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<key>_enabled</key>
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<value>True</value>
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</param>
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<param>
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<key>fft_size</key>
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<value>1024</value>
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</param>
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<param>
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<key>filename</key>
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<value>waterfall_file_path</value>
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</param>
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<param>
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<key>_coordinate</key>
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<value>(1488, 248)</value>
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</param>
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<param>
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<key>_rotation</key>
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<value>0</value>
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</param>
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<param>
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<key>id</key>
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<value>satnogs_waterfall_sink_0</value>
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</param>
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<param>
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<key>mode</key>
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<value>1</value>
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</param>
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<param>
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<key>pps</key>
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<value>10</value>
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</param>
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<param>
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<key>samp_rate</key>
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<value>audio_samp_rate</value>
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</param>
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</block>
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<block>
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<key>parameter</key>
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<param>
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<key>alias</key>
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<value></value>
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</param>
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<param>
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<key>comment</key>
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<value></value>
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</param>
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<param>
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<key>_enabled</key>
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<value>True</value>
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</param>
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<param>
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<key>_coordinate</key>
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<value>(872, 988)</value>
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</param>
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<param>
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<key>_rotation</key>
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<value>0</value>
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</param>
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<param>
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<key>id</key>
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<value>waterfall_file_path</value>
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</param>
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<param>
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<key>label</key>
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<value></value>
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</param>
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<param>
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<key>short_id</key>
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<value></value>
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</param>
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<param>
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<key>type</key>
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<value>string</value>
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</param>
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<param>
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<key>value</key>
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<value>/tmp/waterfall.dat</value>
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</param>
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</block>
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<connection>
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<source_block_id>analog_quadrature_demod_cf_0</source_block_id>
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<sink_block_id>blocks_wavfile_sink_0</sink_block_id>
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@ -2341,6 +2439,12 @@ we shift the LO a little further</value>
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<source_key>0</source_key>
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<sink_key>0</sink_key>
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</connection>
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<connection>
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<source_block_id>blks2_rational_resampler_xxx_1</source_block_id>
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<sink_block_id>satnogs_waterfall_sink_0</sink_block_id>
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<source_key>0</source_key>
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<sink_key>0</sink_key>
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</connection>
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<connection>
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<source_block_id>freq_xlating_fir_filter_xxx_0</source_block_id>
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<sink_block_id>blks2_rational_resampler_xxx_1</sink_block_id>
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@ -5,7 +5,7 @@
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# Title: FM Generic Demodulation
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# Author: Manolis Surligas (surligas@gmail.com)
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# Description: A generic FM demodulation block
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# Generated: Fri Jan 20 15:58:24 2017
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# Generated: Mon Jan 23 20:10:12 2017
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##################################################
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from gnuradio import analog
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@ -24,7 +24,7 @@ import time
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class satnogs_fm_demod(gr.top_block):
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def __init__(self, doppler_correction_per_sec=1000, file_path='test.wav', lo_offset=100e3, rigctl_port=4532, rx_freq=100e6, rx_sdr_device='usrpb200'):
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def __init__(self, doppler_correction_per_sec=1000, file_path='test.wav', lo_offset=100e3, rigctl_port=4532, rx_freq=100e6, rx_sdr_device='usrpb200', waterfall_file_path='/tmp/waterfall.dat'):
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gr.top_block.__init__(self, "FM Generic Demodulation")
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##################################################
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@ -36,6 +36,7 @@ class satnogs_fm_demod(gr.top_block):
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self.rigctl_port = rigctl_port
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self.rx_freq = rx_freq
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self.rx_sdr_device = rx_sdr_device
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self.waterfall_file_path = waterfall_file_path
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##################################################
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# Variables
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@ -53,6 +54,7 @@ class satnogs_fm_demod(gr.top_block):
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##################################################
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# Blocks
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##################################################
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self.satnogs_waterfall_sink_0 = satnogs.waterfall_sink(audio_samp_rate, 0.0, 10, 1024, waterfall_file_path, 1)
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self.satnogs_tcp_rigctl_msg_source_0 = satnogs.tcp_rigctl_msg_source("127.0.0.1", rigctl_port, False, 1000, 1500)
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self.satnogs_coarse_doppler_correction_cc_0 = satnogs.coarse_doppler_correction_cc(rx_freq, samp_rate_rx)
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self.osmosdr_source_0 = osmosdr.source( args="numchan=" + str(1) + " " + satnogs.hw_rx_settings[rx_sdr_device]['dev_arg'] )
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@ -84,6 +86,7 @@ class satnogs_fm_demod(gr.top_block):
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self.msg_connect((self.satnogs_tcp_rigctl_msg_source_0, 'freq'), (self.satnogs_coarse_doppler_correction_cc_0, 'freq'))
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self.connect((self.analog_quadrature_demod_cf_0, 0), (self.blocks_wavfile_sink_0, 0))
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self.connect((self.blks2_rational_resampler_xxx_1, 0), (self.analog_quadrature_demod_cf_0, 0))
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self.connect((self.blks2_rational_resampler_xxx_1, 0), (self.satnogs_waterfall_sink_0, 0))
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self.connect((self.freq_xlating_fir_filter_xxx_0, 0), (self.blks2_rational_resampler_xxx_1, 0))
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self.connect((self.osmosdr_source_0, 0), (self.satnogs_coarse_doppler_correction_cc_0, 0))
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self.connect((self.satnogs_coarse_doppler_correction_cc_0, 0), (self.freq_xlating_fir_filter_xxx_0, 0))
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@ -135,6 +138,12 @@ class satnogs_fm_demod(gr.top_block):
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self.osmosdr_source_0.set_antenna(satnogs.hw_rx_settings[self.rx_sdr_device]['antenna'], 0)
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self.set_audio_gain(satnogs.fm_demod_settings[self.rx_sdr_device]['audio_gain'])
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def get_waterfall_file_path(self):
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return self.waterfall_file_path
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def set_waterfall_file_path(self, waterfall_file_path):
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self.waterfall_file_path = waterfall_file_path
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def get_samp_rate_rx(self):
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return self.samp_rate_rx
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@ -205,6 +214,9 @@ def argument_parser():
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parser.add_option(
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"", "--rx-sdr-device", dest="rx_sdr_device", type="string", default='usrpb200',
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help="Set rx_sdr_device [default=%default]")
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parser.add_option(
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"", "--waterfall-file-path", dest="waterfall_file_path", type="string", default='/tmp/waterfall.dat',
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help="Set waterfall_file_path [default=%default]")
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return parser
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@ -212,7 +224,7 @@ def main(top_block_cls=satnogs_fm_demod, options=None):
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if options is None:
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options, _ = argument_parser().parse_args()
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tb = top_block_cls(doppler_correction_per_sec=options.doppler_correction_per_sec, file_path=options.file_path, lo_offset=options.lo_offset, rigctl_port=options.rigctl_port, rx_freq=options.rx_freq, rx_sdr_device=options.rx_sdr_device)
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tb = top_block_cls(doppler_correction_per_sec=options.doppler_correction_per_sec, file_path=options.file_path, lo_offset=options.lo_offset, rigctl_port=options.rigctl_port, rx_freq=options.rx_freq, rx_sdr_device=options.rx_sdr_device, waterfall_file_path=options.waterfall_file_path)
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tb.start()
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tb.wait()
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