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Added test APT demod, credits to csete Signed-off-by: Pierros Papadeas <pierros@papadeas.gr>
2017-06-02 23:56:55 +02:00
<?xml version='1.0' encoding='utf-8'?>
<?grc format='1' created='3.7.11'?>
<flow_graph>
<timestamp>Thu May 5 00:22:45 2016</timestamp>
<block>
<key>options</key>
<param>
<key>author</key>
<value>Manolis Surligas (surligas@gmail.com)</value>
</param>
<param>
<key>window_size</key>
<value>3000, 3000</value>
</param>
<param>
<key>category</key>
<value>Custom</value>
</param>
<param>
<key>comment</key>
<value></value>
</param>
<param>
<key>description</key>
<value>A generic APT demodulation block</value>
</param>
<param>
<key>_enabled</key>
<value>True</value>
</param>
<param>
<key>_coordinate</key>
<value>(8, 8)</value>
</param>
<param>
<key>_rotation</key>
<value>0</value>
</param>
<param>
<key>generate_options</key>
<value>no_gui</value>
</param>
<param>
<key>hier_block_src_path</key>
<value>.:</value>
</param>
<param>
<key>id</key>
<value>satnogs_apt_demod</value>
</param>
<param>
<key>max_nouts</key>
<value>0</value>
</param>
<param>
<key>qt_qss_theme</key>
<value></value>
</param>
<param>
<key>realtime_scheduling</key>
<value></value>
</param>
<param>
<key>run_command</key>
<value>{python} -u {filename}</value>
</param>
<param>
<key>run_options</key>
<value>run</value>
</param>
<param>
<key>run</key>
<value>True</value>
</param>
<param>
<key>thread_safe_setters</key>
<value></value>
</param>
<param>
<key>title</key>
<value>APT Generic Demodulation</value>
</param>
</block>
<block>
<key>variable</key>
<param>
<key>comment</key>
<value>Decimation factor
for the RX after the
SDR received samples</value>
</param>
<param>
<key>_enabled</key>
<value>True</value>
</param>
<param>
<key>_coordinate</key>
<value>(1704, 796)</value>
</param>
<param>
<key>_rotation</key>
<value>0</value>
</param>
<param>
<key>id</key>
<value>audio_gain</value>
</param>
<param>
<key>value</key>
<value>satnogs.fm_demod_settings[rx_sdr_device]['audio_gain']</value>
</param>
</block>
<block>
<key>variable</key>
<param>
<key>comment</key>
<value></value>
</param>
<param>
<key>_enabled</key>
<value>True</value>
</param>
<param>
<key>_coordinate</key>
<value>(1704, 52)</value>
</param>
<param>
<key>_rotation</key>
<value>0</value>
</param>
<param>
<key>id</key>
<value>audio_samp_rate</value>
</param>
<param>
<key>value</key>
<value>48000</value>
</param>
</block>
<block>
<key>variable</key>
<param>
<key>comment</key>
<value>Decimation factor
for the RX after the
SDR received samples</value>
</param>
<param>
<key>_enabled</key>
<value>0</value>
</param>
<param>
<key>_coordinate</key>
<value>(1704, 348)</value>
</param>
<param>
<key>_rotation</key>
<value>0</value>
</param>
<param>
<key>id</key>
<value>decimation_rx</value>
</param>
<param>
<key>value</key>
<value>satnogs.fm_demod_settings[rx_sdr_device]['decimation_rx']</value>
</param>
</block>
<block>
<key>variable</key>
<param>
<key>comment</key>
<value></value>
</param>
<param>
<key>_enabled</key>
<value>True</value>
</param>
<param>
<key>_coordinate</key>
<value>(1480, 988)</value>
</param>
<param>
<key>_rotation</key>
<value>0</value>
</param>
<param>
<key>id</key>
<value>deviation</value>
</param>
<param>
<key>value</key>
<value>17000</value>
</param>
</block>
<block>
<key>variable</key>
<param>
<key>comment</key>
<value></value>
</param>
<param>
<key>_enabled</key>
<value>True</value>
</param>
<param>
<key>_coordinate</key>
<value>(1704, 260)</value>
</param>
<param>
<key>_rotation</key>
<value>0</value>
</param>
<param>
<key>id</key>
<value>filter_rate</value>
</param>
<param>
<key>value</key>
<value>250000</value>
</param>
</block>
<block>
<key>variable</key>
<param>
<key>comment</key>
<value></value>
</param>
<param>
<key>_enabled</key>
<value>0</value>
</param>
<param>
<key>_coordinate</key>
<value>(1704, 508)</value>
</param>
<param>
<key>_rotation</key>
<value>0</value>
</param>
<param>
<key>id</key>
<value>quadrature_rate</value>
</param>
<param>
<key>value</key>
<value>samp_rate_rx / decimation_rx</value>
</param>
</block>
<block>
<key>variable</key>
<param>
<key>comment</key>
<value>SDR device
TX sampling rate</value>
</param>
<param>
<key>_enabled</key>
<value>True</value>
</param>
<param>
<key>_coordinate</key>
<value>(1704, 956)</value>
</param>
<param>
<key>_rotation</key>
<value>0</value>
</param>
<param>
<key>id</key>
<value>samp_rate_rx</value>
</param>
<param>
<key>value</key>
<value>satnogs.hw_rx_settings[rx_sdr_device]['samp_rate']</value>
</param>
</block>
<block>
<key>variable_low_pass_filter_taps</key>
<param>
<key>beta</key>
<value>6.76</value>
</param>
<param>
<key>comment</key>
<value></value>
</param>
<param>
<key>cutoff_freq</key>
<value>100e3</value>
</param>
<param>
<key>_enabled</key>
<value>1</value>
</param>
<param>
<key>_coordinate</key>
<value>(48, 716)</value>
</param>
<param>
<key>_rotation</key>
<value>0</value>
</param>
<param>
<key>gain</key>
<value>12.0</value>
</param>
<param>
<key>id</key>
<value>taps</value>
</param>
<param>
<key>samp_rate</key>
<value>samp_rate_rx</value>
</param>
<param>
<key>width</key>
<value>60000</value>
</param>
<param>
<key>win</key>
<value>firdes.WIN_HAMMING</value>
</param>
</block>
<block>
<key>variable</key>
<param>
<key>comment</key>
<value></value>
</param>
<param>
<key>_enabled</key>
<value>True</value>
</param>
<param>
<key>_coordinate</key>
<value>(1704, 164)</value>
</param>
<param>
<key>_rotation</key>
<value>0</value>
</param>
<param>
<key>id</key>
<value>xlate_filter_taps</value>
</param>
<param>
<key>value</key>
<value>firdes.low_pass(1, samp_rate_rx, 125000, 25000, firdes.WIN_HAMMING, 6.76)</value>
</param>
</block>
<block>
<key>analog_quadrature_demod_cf</key>
<param>
<key>alias</key>
<value></value>
</param>
<param>
<key>comment</key>
<value></value>
</param>
<param>
<key>affinity</key>
<value></value>
</param>
<param>
<key>_enabled</key>
<value>True</value>
</param>
<param>
<key>_coordinate</key>
<value>(1224, 564)</value>
</param>
<param>
<key>_rotation</key>
<value>180</value>
</param>
<param>
<key>gain</key>
<value>(2*math.pi*deviation)/96000</value>
</param>
<param>
<key>id</key>
<value>analog_quadrature_demod_cf_0</value>
</param>
<param>
<key>maxoutbuf</key>
<value>0</value>
</param>
<param>
<key>minoutbuf</key>
<value>0</value>
</param>
</block>
<block>
<key>rational_resampler_xxx</key>
<param>
<key>alias</key>
<value></value>
</param>
<param>
<key>comment</key>
<value></value>
</param>
<param>
<key>affinity</key>
<value></value>
</param>
<param>
<key>decim</key>
<value>125</value>
</param>
<param>
<key>_enabled</key>
<value>True</value>
</param>
<param>
<key>fbw</key>
<value>0</value>
</param>
<param>
<key>_coordinate</key>
<value>(1112, 268)</value>
</param>
<param>
<key>_rotation</key>
<value>0</value>
</param>
<param>
<key>id</key>
<value>blks2_rational_resampler_xxx_1</value>
</param>
<param>
<key>interp</key>
<value>48</value>
</param>
<param>
<key>maxoutbuf</key>
<value>0</value>
</param>
<param>
<key>minoutbuf</key>
<value>0</value>
</param>
<param>
<key>taps</key>
<value>[]</value>
</param>
<param>
<key>type</key>
<value>ccc</value>
</param>
</block>
<block>
<key>parameter</key>
<param>
<key>alias</key>
<value></value>
</param>
<param>
<key>comment</key>
<value></value>
</param>
<param>
<key>_enabled</key>
<value>True</value>
</param>
<param>
<key>_coordinate</key>
<value>(64, 984)</value>
</param>
<param>
<key>_rotation</key>
<value>0</value>
</param>
<param>
<key>id</key>
<value>doppler_correction_per_sec</value>
</param>
<param>
<key>label</key>
<value></value>
</param>
<param>
<key>short_id</key>
<value></value>
</param>
<param>
<key>type</key>
<value>intx</value>
</param>
<param>
<key>value</key>
<value>1000</value>
</param>
</block>
<block>
<key>parameter</key>
<param>
<key>alias</key>
<value></value>
</param>
<param>
<key>comment</key>
<value></value>
</param>
<param>
<key>_enabled</key>
<value>True</value>
</param>
<param>
<key>_coordinate</key>
<value>(744, 988)</value>
</param>
<param>
<key>_rotation</key>
<value>180</value>
</param>
<param>
<key>id</key>
<value>file_path</value>
</param>
<param>
<key>label</key>
<value></value>
</param>
<param>
<key>short_id</key>
<value></value>
</param>
<param>
<key>type</key>
<value>string</value>
</param>
<param>
<key>value</key>
<value>test.wav</value>
</param>
</block>
<block>
<key>freq_xlating_fir_filter_xxx</key>
<param>
<key>alias</key>
<value></value>
</param>
<param>
<key>center_freq</key>
<value>lo_offset</value>
</param>
<param>
<key>comment</key>
<value></value>
</param>
<param>
<key>affinity</key>
<value></value>
</param>
<param>
<key>decim</key>
<value>int(samp_rate_rx/filter_rate)</value>
</param>
<param>
<key>_enabled</key>
<value>1</value>
</param>
<param>
<key>_coordinate</key>
<value>(680, 268)</value>
</param>
<param>
<key>_rotation</key>
<value>0</value>
</param>
<param>
<key>id</key>
<value>freq_xlating_fir_filter_xxx_0</value>
</param>
<param>
<key>maxoutbuf</key>
<value>0</value>
</param>
<param>
<key>minoutbuf</key>
<value>0</value>
</param>
<param>
<key>samp_rate</key>
<value>samp_rate_rx</value>
</param>
<param>
<key>taps</key>
<value>xlate_filter_taps</value>
</param>
<param>
<key>type</key>
<value>ccc</value>
</param>
</block>
<block>
<key>parameter</key>
<param>
<key>alias</key>
<value></value>
</param>
<param>
<key>comment</key>
<value>To avoid the SDR carrier at the DC
we shift the LO a little further</value>
</param>
<param>
<key>_enabled</key>
<value>True</value>
</param>
<param>
<key>_coordinate</key>
<value>(1704, 608)</value>
</param>
<param>
<key>_rotation</key>
<value>0</value>
</param>
<param>
<key>id</key>
<value>lo_offset</value>
</param>
<param>
<key>label</key>
<value></value>
</param>
<param>
<key>short_id</key>
<value></value>
</param>
<param>
<key>type</key>
<value>eng_float</value>
</param>
<param>
<key>value</key>
<value>100e3</value>
</param>
</block>
<block>
<key>osmosdr_source</key>
<param>
<key>alias</key>
<value></value>
</param>
<param>
<key>ant0</key>
<value>satnogs.hw_rx_settings[rx_sdr_device]['antenna']</value>
</param>
<param>
<key>bb_gain0</key>
<value>satnogs.hw_rx_settings[rx_sdr_device]['bb_gain']</value>
</param>
<param>
<key>bw0</key>
<value>samp_rate_rx</value>
</param>
<param>
<key>dc_offset_mode0</key>
<value>2</value>
</param>
<param>
<key>corr0</key>
<value>ppm</value>
</param>
<param>
<key>freq0</key>
<value>rx_freq - lo_offset</value>
</param>
<param>
<key>gain_mode0</key>
<value>False</value>
</param>
<param>
<key>if_gain0</key>
<value>satnogs.hw_rx_settings[rx_sdr_device]['if_gain']</value>
</param>
<param>
<key>iq_balance_mode0</key>
<value>0</value>
</param>
<param>
<key>gain0</key>
<value>satnogs.hw_rx_settings[rx_sdr_device]['rf_gain']</value>
</param>
<param>
<key>ant1</key>
<value></value>
</param>
<param>
<key>bb_gain1</key>
<value>20</value>
</param>
<param>
<key>bw1</key>
<value>0</value>
</param>
<param>
<key>dc_offset_mode1</key>
<value>0</value>
</param>
<param>
<key>corr1</key>
<value>0</value>
</param>
<param>
<key>freq1</key>
<value>100e6</value>
</param>
<param>
<key>gain_mode1</key>
<value>False</value>
</param>
<param>
<key>if_gain1</key>
<value>20</value>
</param>
<param>
<key>iq_balance_mode1</key>
<value>0</value>
</param>
<param>
<key>gain1</key>
<value>10</value>
</param>
<param>
<key>ant2</key>
<value></value>
</param>
<param>
<key>bb_gain2</key>
<value>20</value>
</param>
<param>
<key>bw2</key>
<value>0</value>
</param>
<param>
<key>dc_offset_mode2</key>
<value>0</value>
</param>
<param>
<key>corr2</key>
<value>0</value>
</param>
<param>
<key>freq2</key>
<value>100e6</value>
</param>
<param>
<key>gain_mode2</key>
<value>False</value>
</param>
<param>
<key>if_gain2</key>
<value>20</value>
</param>
<param>
<key>iq_balance_mode2</key>
<value>0</value>
</param>
<param>
<key>gain2</key>
<value>10</value>
</param>
<param>
<key>ant3</key>
<value></value>
</param>
<param>
<key>bb_gain3</key>
<value>20</value>
</param>
<param>
<key>bw3</key>
<value>0</value>
</param>
<param>
<key>dc_offset_mode3</key>
<value>0</value>
</param>
<param>
<key>corr3</key>
<value>0</value>
</param>
<param>
<key>freq3</key>
<value>100e6</value>
</param>
<param>
<key>gain_mode3</key>
<value>False</value>
</param>
<param>
<key>if_gain3</key>
<value>20</value>
</param>
<param>
<key>iq_balance_mode3</key>
<value>0</value>
</param>
<param>
<key>gain3</key>
<value>10</value>
</param>
<param>
<key>ant4</key>
<value></value>
</param>
<param>
<key>bb_gain4</key>
<value>20</value>
</param>
<param>
<key>bw4</key>
<value>0</value>
</param>
<param>
<key>dc_offset_mode4</key>
<value>0</value>
</param>
<param>
<key>corr4</key>
<value>0</value>
</param>
<param>
<key>freq4</key>
<value>100e6</value>
</param>
<param>
<key>gain_mode4</key>
<value>False</value>
</param>
<param>
<key>if_gain4</key>
<value>20</value>
</param>
<param>
<key>iq_balance_mode4</key>
<value>0</value>
</param>
<param>
<key>gain4</key>
<value>10</value>
</param>
<param>
<key>comment</key>
<value></value>
</param>
<param>
<key>affinity</key>
<value></value>
</param>
<param>
<key>args</key>
<value>satnogs.hw_rx_settings[rx_sdr_device]['dev_arg']</value>
</param>
<param>
<key>_enabled</key>
<value>1</value>
</param>
<param>
<key>_coordinate</key>
<value>(16, 376)</value>
</param>
<param>
<key>_rotation</key>
<value>0</value>
</param>
<param>
<key>id</key>
<value>osmosdr_source_0</value>
</param>
<param>
<key>maxoutbuf</key>
<value>0</value>
</param>
<param>
<key>minoutbuf</key>
<value>0</value>
</param>
<param>
<key>nchan</key>
<value>1</value>
</param>
<param>
<key>type</key>
<value>fc32</value>
</param>
<param>
<key>sample_rate</key>
<value>samp_rate_rx</value>
</param>
</block>
<block>
<key>parameter</key>
<param>
<key>alias</key>
<value></value>
</param>
<param>
<key>comment</key>
<value></value>
</param>
<param>
<key>_enabled</key>
<value>True</value>
</param>
<param>
<key>_coordinate</key>
<value>(1104, 996)</value>
</param>
<param>
<key>_rotation</key>
<value>0</value>
</param>
<param>
<key>id</key>
<value>ppm</value>
</param>
<param>
<key>label</key>
<value></value>
</param>
<param>
<key>short_id</key>
<value></value>
</param>
<param>
<key>type</key>
<value>intx</value>
</param>
<param>
<key>value</key>
<value>0</value>
</param>
</block>
<block>
<key>rational_resampler_xxx</key>
<param>
<key>alias</key>
<value></value>
</param>
<param>
<key>comment</key>
<value></value>
</param>
<param>
<key>affinity</key>
<value></value>
</param>
<param>
<key>decim</key>
<value>2</value>
</param>
<param>
<key>_enabled</key>
<value>True</value>
</param>
<param>
<key>fbw</key>
<value>0</value>
</param>
<param>
<key>_coordinate</key>
<value>(1000, 540)</value>
</param>
<param>
<key>_rotation</key>
<value>180</value>
</param>
<param>
<key>id</key>
<value>rational_resampler_xxx_0</value>
</param>
<param>
<key>interp</key>
<value>1</value>
</param>
<param>
<key>maxoutbuf</key>
<value>0</value>
</param>
<param>
<key>minoutbuf</key>
<value>0</value>
</param>
<param>
<key>taps</key>
<value></value>
</param>
<param>
<key>type</key>
<value>fff</value>
</param>
</block>
<block>
<key>parameter</key>
<param>
<key>alias</key>
<value></value>
</param>
<param>
<key>comment</key>
<value></value>
</param>
<param>
<key>_enabled</key>
<value>True</value>
</param>
<param>
<key>_coordinate</key>
<value>(472, 984)</value>
</param>
<param>
<key>_rotation</key>
<value>0</value>
</param>
<param>
<key>id</key>
<value>rigctl_port</value>
</param>
<param>
<key>label</key>
<value></value>
</param>
<param>
<key>short_id</key>
<value></value>
</param>
<param>
<key>type</key>
<value>intx</value>
</param>
<param>
<key>value</key>
<value>4532</value>
</param>
</block>
<block>
<key>parameter</key>
<param>
<key>alias</key>
<value></value>
</param>
<param>
<key>comment</key>
<value></value>
</param>
<param>
<key>_enabled</key>
<value>True</value>
</param>
<param>
<key>_coordinate</key>
<value>(616, 984)</value>
</param>
<param>
<key>_rotation</key>
<value>0</value>
</param>
<param>
<key>id</key>
<value>rx_freq</value>
</param>
<param>
<key>label</key>
<value></value>
</param>
<param>
<key>short_id</key>
<value></value>
</param>
<param>
<key>type</key>
<value>eng_float</value>
</param>
<param>
<key>value</key>
<value>100e6</value>
</param>
</block>
<block>
<key>parameter</key>
<param>
<key>alias</key>
<value></value>
</param>
<param>
<key>comment</key>
<value></value>
</param>
<param>
<key>_enabled</key>
<value>True</value>
</param>
<param>
<key>_coordinate</key>
<value>(312, 984)</value>
</param>
<param>
<key>_rotation</key>
<value>0</value>
</param>
<param>
<key>id</key>
<value>rx_sdr_device</value>
</param>
<param>
<key>label</key>
<value></value>
</param>
<param>
<key>short_id</key>
<value></value>
</param>
<param>
<key>type</key>
<value>string</value>
</param>
<param>
<key>value</key>
<value>usrpb200</value>
</param>
</block>
<block>
<key>satnogs_coarse_doppler_correction_cc</key>
<param>
<key>alias</key>
<value></value>
</param>
<param>
<key>comment</key>
<value></value>
</param>
<param>
<key>affinity</key>
<value></value>
</param>
<param>
<key>_enabled</key>
<value>True</value>
</param>
<param>
<key>_coordinate</key>
<value>(352, 276)</value>
</param>
<param>
<key>_rotation</key>
<value>0</value>
</param>
<param>
<key>id</key>
<value>satnogs_coarse_doppler_correction_cc_0</value>
</param>
<param>
<key>maxoutbuf</key>
<value>0</value>
</param>
<param>
<key>minoutbuf</key>
<value>0</value>
</param>
<param>
<key>sampling_rate</key>
<value>samp_rate_rx</value>
</param>
<param>
<key>target_freq</key>
<value>rx_freq</value>
</param>
</block>
<block>
<key>satnogs_ogg_encoder</key>
<param>
<key>alias</key>
<value></value>
</param>
<param>
<key>comment</key>
<value></value>
</param>
<param>
<key>affinity</key>
<value></value>
</param>
<param>
<key>_enabled</key>
<value>True</value>
</param>
<param>
<key>filename</key>
<value>file_path</value>
</param>
<param>
<key>_coordinate</key>
<value>(792, 548)</value>
</param>
<param>
<key>_rotation</key>
<value>180</value>
</param>
<param>
<key>id</key>
<value>satnogs_ogg_encoder_0</value>
</param>
<param>
<key>quality</key>
<value>1.0</value>
</param>
<param>
<key>samp_rate</key>
<value>audio_samp_rate</value>
</param>
</block>
<block>
<key>satnogs_tcp_rigctl_msg_source</key>
<param>
<key>alias</key>
<value></value>
</param>
<param>
<key>comment</key>
<value></value>
</param>
<param>
<key>affinity</key>
<value></value>
</param>
<param>
<key>_enabled</key>
<value>1</value>
</param>
<param>
<key>_coordinate</key>
<value>(16, 204)</value>
</param>
<param>
<key>_rotation</key>
<value>0</value>
</param>
<param>
<key>id</key>
<value>satnogs_tcp_rigctl_msg_source_0</value>
</param>
<param>
<key>addr</key>
<value>"127.0.0.1"</value>
</param>
<param>
<key>mtu</key>
<value>1500</value>
</param>
<param>
<key>maxoutbuf</key>
<value>0</value>
</param>
<param>
<key>minoutbuf</key>
<value>0</value>
</param>
<param>
<key>mode</key>
<value>False</value>
</param>
<param>
<key>port</key>
<value>rigctl_port</value>
</param>
<param>
<key>interval</key>
<value>1000</value>
</param>
</block>
<block>
<key>satnogs_waterfall_sink</key>
<param>
<key>alias</key>
<value></value>
</param>
<param>
<key>center_freq</key>
<value>0.0</value>
</param>
<param>
<key>comment</key>
<value></value>
</param>
<param>
<key>affinity</key>
<value></value>
</param>
<param>
<key>_enabled</key>
<value>True</value>
</param>
<param>
<key>fft_size</key>
<value>1024</value>
</param>
<param>
<key>filename</key>
<value>waterfall_file_path</value>
</param>
<param>
<key>_coordinate</key>
<value>(1456, 252)</value>
</param>
<param>
<key>_rotation</key>
<value>0</value>
</param>
<param>
<key>id</key>
<value>satnogs_waterfall_sink_0</value>
</param>
<param>
<key>mode</key>
<value>1</value>
</param>
<param>
<key>pps</key>
<value>10</value>
</param>
<param>
<key>samp_rate</key>
<value>audio_samp_rate*2</value>
</param>
</block>
<block>
<key>parameter</key>
<param>
<key>alias</key>
<value></value>
</param>
<param>
<key>comment</key>
<value></value>
</param>
<param>
<key>_enabled</key>
<value>True</value>
</param>
<param>
<key>_coordinate</key>
<value>(872, 988)</value>
</param>
<param>
<key>_rotation</key>
<value>0</value>
</param>
<param>
<key>id</key>
<value>waterfall_file_path</value>
</param>
<param>
<key>label</key>
<value></value>
</param>
<param>
<key>short_id</key>
<value></value>
</param>
<param>
<key>type</key>
<value>string</value>
</param>
<param>
<key>value</key>
<value>/tmp/waterfall.dat</value>
</param>
</block>
<connection>
<source_block_id>analog_quadrature_demod_cf_0</source_block_id>
<sink_block_id>rational_resampler_xxx_0</sink_block_id>
<source_key>0</source_key>
<sink_key>0</sink_key>
</connection>
<connection>
<source_block_id>blks2_rational_resampler_xxx_1</source_block_id>
<sink_block_id>analog_quadrature_demod_cf_0</sink_block_id>
<source_key>0</source_key>
<sink_key>0</sink_key>
</connection>
<connection>
<source_block_id>blks2_rational_resampler_xxx_1</source_block_id>
<sink_block_id>satnogs_waterfall_sink_0</sink_block_id>
<source_key>0</source_key>
<sink_key>0</sink_key>
</connection>
<connection>
<source_block_id>freq_xlating_fir_filter_xxx_0</source_block_id>
<sink_block_id>blks2_rational_resampler_xxx_1</sink_block_id>
<source_key>0</source_key>
<sink_key>0</sink_key>
</connection>
<connection>
<source_block_id>osmosdr_source_0</source_block_id>
<sink_block_id>satnogs_coarse_doppler_correction_cc_0</sink_block_id>
<source_key>0</source_key>
<sink_key>0</sink_key>
</connection>
<connection>
<source_block_id>rational_resampler_xxx_0</source_block_id>
<sink_block_id>satnogs_ogg_encoder_0</sink_block_id>
<source_key>0</source_key>
<sink_key>0</sink_key>
</connection>
<connection>
<source_block_id>satnogs_coarse_doppler_correction_cc_0</source_block_id>
<sink_block_id>freq_xlating_fir_filter_xxx_0</sink_block_id>
<source_key>0</source_key>
<sink_key>0</sink_key>
</connection>
<connection>
<source_block_id>satnogs_tcp_rigctl_msg_source_0</source_block_id>
<sink_block_id>satnogs_coarse_doppler_correction_cc_0</sink_block_id>
<source_key>freq</source_key>
<sink_key>freq</sink_key>
</connection>
</flow_graph>