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noaa_apt_rec.grc
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noaa_apt_rec.grc
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<?xml version='1.0' encoding='ASCII'?>
<flow_graph>
<timestamp>Thu Jan 8 12:22:26 2015</timestamp>
<block>
<key>options</key>
<param>
<key>id</key>
<value>noaa_apt_rec</value>
</param>
<param>
<key>_enabled</key>
<value>True</value>
</param>
<param>
<key>title</key>
<value>NOAA APT Receiver</value>
</param>
<param>
<key>author</key>
<value>Tito Dal Canton</value>
</param>
<param>
<key>description</key>
<value></value>
</param>
<param>
<key>window_size</key>
<value>1280, 1024</value>
</param>
<param>
<key>generate_options</key>
<value>no_gui</value>
</param>
<param>
<key>category</key>
<value>Custom</value>
</param>
<param>
<key>run_options</key>
<value>run</value>
</param>
<param>
<key>run</key>
<value>True</value>
</param>
<param>
<key>max_nouts</key>
<value>0</value>
</param>
<param>
<key>realtime_scheduling</key>
<value></value>
</param>
<param>
<key>_coordinate</key>
<value>(6, 2)</value>
</param>
<param>
<key>_rotation</key>
<value>0</value>
</param>
</block>
<block>
<key>analog_quadrature_demod_cf</key>
<param>
<key>id</key>
<value>analog_quadrature_demod_cf_0</value>
</param>
<param>
<key>_enabled</key>
<value>True</value>
</param>
<param>
<key>gain</key>
<value>samp_rate/first_decim/(2*math.pi*17e3)</value>
</param>
<param>
<key>affinity</key>
<value></value>
</param>
<param>
<key>minoutbuf</key>
<value>0</value>
</param>
<param>
<key>maxoutbuf</key>
<value>0</value>
</param>
<param>
<key>_coordinate</key>
<value>(695, 151)</value>
</param>
<param>
<key>_rotation</key>
<value>0</value>
</param>
</block>
<block>
<key>low_pass_filter</key>
<param>
<key>id</key>
<value>low_pass_filter_1</value>
</param>
<param>
<key>_enabled</key>
<value>True</value>
</param>
<param>
<key>type</key>
<value>fir_filter_fff</value>
</param>
<param>
<key>decim</key>
<value>4</value>
</param>
<param>
<key>interp</key>
<value>1</value>
</param>
<param>
<key>gain</key>
<value>0.1</value>
</param>
<param>
<key>samp_rate</key>
<value>samp_rate/first_decim</value>
</param>
<param>
<key>cutoff_freq</key>
<value>4800</value>
</param>
<param>
<key>width</key>
<value>1000</value>
</param>
<param>
<key>win</key>
<value>firdes.WIN_HAMMING</value>
</param>
<param>
<key>beta</key>
<value>6.76</value>
</param>
<param>
<key>affinity</key>
<value></value>
</param>
<param>
<key>minoutbuf</key>
<value>0</value>
</param>
<param>
<key>maxoutbuf</key>
<value>0</value>
</param>
<param>
<key>_coordinate</key>
<value>(893, 109)</value>
</param>
<param>
<key>_rotation</key>
<value>0</value>
</param>
</block>
<block>
<key>rational_resampler_xxx</key>
<param>
<key>id</key>
<value>rational_resampler_xxx_0</value>
</param>
<param>
<key>_enabled</key>
<value>True</value>
</param>
<param>
<key>type</key>
<value>fff</value>
</param>
<param>
<key>interp</key>
<value>11025</value>
</param>
<param>
<key>decim</key>
<value>int(samp_rate/first_decim/4)</value>
</param>
<param>
<key>taps</key>
<value></value>
</param>
<param>
<key>fbw</key>
<value>0</value>
</param>
<param>
<key>affinity</key>
<value></value>
</param>
<param>
<key>minoutbuf</key>
<value>0</value>
</param>
<param>
<key>maxoutbuf</key>
<value>0</value>
</param>
<param>
<key>_coordinate</key>
<value>(886, 241)</value>
</param>
<param>
<key>_rotation</key>
<value>180</value>
</param>
</block>
<block>
<key>blocks_complex_to_float</key>
<param>
<key>id</key>
<value>blocks_complex_to_float_0</value>
</param>
<param>
<key>_enabled</key>
<value>True</value>
</param>
<param>
<key>vlen</key>
<value>1</value>
</param>
<param>
<key>affinity</key>
<value></value>
</param>
<param>
<key>minoutbuf</key>
<value>0</value>
</param>
<param>
<key>maxoutbuf</key>
<value>0</value>
</param>
<param>
<key>_coordinate</key>
<value>(714, 21)</value>
</param>
<param>
<key>_rotation</key>
<value>0</value>
</param>
</block>
<block>
<key>rtlsdr_source</key>
<param>
<key>id</key>
<value>rtlsdr_source_0</value>
</param>
<param>
<key>_enabled</key>
<value>True</value>
</param>
<param>
<key>type</key>
<value>fc32</value>
</param>
<param>
<key>args</key>
<value></value>
</param>
<param>
<key>nchan</key>
<value>1</value>
</param>
<param>
<key>sample_rate</key>
<value>int(samp_rate)</value>
</param>
<param>
<key>freq0</key>
<value>frequency * 1e6 - dongle_freq_bias - safety_freq_offset</value>
</param>
<param>
<key>corr0</key>
<value>0</value>
</param>
<param>
<key>dc_offset_mode0</key>
<value>0</value>
</param>
<param>
<key>iq_balance_mode0</key>
<value>0</value>
</param>
<param>
<key>gain_mode0</key>
<value>False</value>
</param>
<param>
<key>gain0</key>
<value>40</value>
</param>
<param>
<key>if_gain0</key>
<value>48</value>
</param>
<param>
<key>bb_gain0</key>
<value>0</value>
</param>
<param>
<key>ant0</key>
<value></value>
</param>
<param>
<key>bw0</key>
<value>0</value>
</param>
<param>
<key>freq1</key>
<value>100e6</value>
</param>
<param>
<key>corr1</key>
<value>0</value>
</param>
<param>
<key>dc_offset_mode1</key>
<value>0</value>
</param>
<param>
<key>iq_balance_mode1</key>
<value>0</value>
</param>
<param>
<key>gain_mode1</key>
<value>False</value>
</param>
<param>
<key>gain1</key>
<value>10</value>
</param>
<param>
<key>if_gain1</key>
<value>20</value>
</param>
<param>
<key>bb_gain1</key>
<value>20</value>
</param>
<param>
<key>ant1</key>
<value></value>
</param>
<param>
<key>bw1</key>
<value>0</value>
</param>
<param>
<key>freq2</key>
<value>100e6</value>
</param>
<param>
<key>corr2</key>
<value>0</value>
</param>
<param>
<key>dc_offset_mode2</key>
<value>0</value>
</param>
<param>
<key>iq_balance_mode2</key>
<value>0</value>
</param>
<param>
<key>gain_mode2</key>
<value>False</value>
</param>
<param>
<key>gain2</key>
<value>10</value>
</param>
<param>
<key>if_gain2</key>
<value>20</value>
</param>
<param>
<key>bb_gain2</key>
<value>20</value>
</param>
<param>
<key>ant2</key>
<value></value>
</param>
<param>
<key>bw2</key>
<value>0</value>
</param>
<param>
<key>freq3</key>
<value>100e6</value>
</param>
<param>
<key>corr3</key>
<value>0</value>
</param>
<param>
<key>dc_offset_mode3</key>
<value>0</value>
</param>
<param>
<key>iq_balance_mode3</key>
<value>0</value>
</param>
<param>
<key>gain_mode3</key>
<value>False</value>
</param>
<param>
<key>gain3</key>
<value>10</value>
</param>
<param>
<key>if_gain3</key>
<value>20</value>
</param>
<param>
<key>bb_gain3</key>
<value>20</value>
</param>
<param>
<key>ant3</key>
<value></value>
</param>
<param>
<key>bw3</key>
<value>0</value>
</param>
<param>
<key>freq4</key>
<value>100e6</value>
</param>
<param>
<key>corr4</key>
<value>0</value>
</param>
<param>
<key>dc_offset_mode4</key>
<value>0</value>
</param>
<param>
<key>iq_balance_mode4</key>
<value>0</value>
</param>
<param>
<key>gain_mode4</key>
<value>False</value>
</param>
<param>
<key>gain4</key>
<value>10</value>
</param>
<param>
<key>if_gain4</key>
<value>20</value>
</param>
<param>
<key>bb_gain4</key>
<value>20</value>
</param>
<param>
<key>ant4</key>
<value></value>
</param>
<param>
<key>bw4</key>
<value>0</value>
</param>
<param>
<key>affinity</key>
<value></value>
</param>
<param>
<key>minoutbuf</key>
<value>0</value>
</param>
<param>
<key>maxoutbuf</key>
<value>0</value>
</param>
<param>
<key>_coordinate</key>
<value>(7, 95)</value>
</param>
<param>
<key>_rotation</key>
<value>0</value>
</param>
</block>
<block>
<key>blocks_wavfile_sink</key>
<param>
<key>id</key>
<value>blocks_wavfile_sink_0</value>
</param>
<param>
<key>_enabled</key>
<value>True</value>
</param>
<param>
<key>file</key>
<value>output_path</value>
</param>
<param>
<key>nchan</key>
<value>1</value>
</param>
<param>
<key>samp_rate</key>
<value>11025</value>
</param>
<param>
<key>bits_per_sample</key>
<value>16</value>
</param>
<param>
<key>affinity</key>
<value></value>
</param>
<param>
<key>_coordinate</key>
<value>(691, 248)</value>
</param>
<param>
<key>_rotation</key>
<value>180</value>
</param>
</block>
<block>
<key>parameter</key>
<param>
<key>id</key>
<value>frequency</value>
</param>
<param>
<key>_enabled</key>
<value>True</value>
</param>
<param>
<key>label</key>
<value></value>
</param>
<param>
<key>value</key>
<value>137.1</value>
</param>
<param>
<key>type</key>
<value>eng_float</value>
</param>
<param>
<key>short_id</key>
<value></value>
</param>
<param>
<key>_coordinate</key>
<value>(8, 257)</value>
</param>
<param>
<key>_rotation</key>
<value>0</value>
</param>
</block>
<block>
<key>parameter</key>
<param>
<key>id</key>
<value>iq_output_path</value>
</param>
<param>
<key>_enabled</key>
<value>True</value>
</param>
<param>
<key>label</key>
<value></value>
</param>
<param>
<key>value</key>
<value>/dev/null</value>
</param>
<param>
<key>type</key>
<value>string</value>
</param>
<param>
<key>short_id</key>
<value></value>
</param>
<param>
<key>_coordinate</key>
<value>(93, 258)</value>
</param>
<param>
<key>_rotation</key>
<value>0</value>
</param>
</block>
<block>
<key>freq_xlating_fir_filter_xxx</key>
<param>
<key>id</key>
<value>freq_xlating_fir_filter_xxx_0</value>
</param>
<param>
<key>_enabled</key>
<value>True</value>
</param>
<param>
<key>type</key>
<value>ccc</value>
</param>
<param>
<key>decim</key>
<value>1</value>
</param>
<param>
<key>taps</key>
<value>8</value>
</param>
<param>
<key>center_freq</key>
<value>safety_freq_offset</value>
</param>
<param>
<key>samp_rate</key>
<value>samp_rate</value>
</param>
<param>
<key>affinity</key>
<value></value>
</param>
<param>
<key>minoutbuf</key>
<value>0</value>
</param>
<param>
<key>maxoutbuf</key>
<value>0</value>
</param>
<param>
<key>_coordinate</key>
<value>(251, 130)</value>
</param>
<param>
<key>_rotation</key>
<value>0</value>
</param>
</block>
<block>
<key>parameter</key>
<param>
<key>id</key>
<value>output_path</value>
</param>
<param>
<key>_enabled</key>
<value>True</value>
</param>
<param>
<key>label</key>
<value></value>
</param>
<param>
<key>value</key>
<value>noaa_apt_rec.wav</value>
</param>
<param>
<key>type</key>
<value>string</value>
</param>
<param>
<key>short_id</key>
<value></value>
</param>
<param>
<key>_coordinate</key>
<value>(201, 258)</value>
</param>
<param>
<key>_rotation</key>
<value>0</value>
</param>
</block>
<block>
<key>parameter</key>
<param>
<key>id</key>
<value>dongle_freq_bias</value>
</param>
<param>
<key>_enabled</key>
<value>True</value>
</param>
<param>
<key>label</key>
<value></value>
</param>
<param>
<key>value</key>
<value>-1.5e4</value>
</param>
<param>
<key>type</key>
<value>eng_float</value>
</param>
<param>
<key>short_id</key>
<value></value>
</param>
<param>
<key>_coordinate</key>
<value>(8, 332)</value>
</param>
<param>
<key>_rotation</key>
<value>0</value>
</param>
</block>
<block>
<key>parameter</key>
<param>
<key>id</key>
<value>first_decim</value>
</param>
<param>
<key>_enabled</key>
<value>True</value>
</param>
<param>
<key>label</key>
<value></value>
</param>
<param>
<key>value</key>
<value>24</value>
</param>
<param>
<key>type</key>
<value>intx</value>
</param>
<param>
<key>short_id</key>
<value></value>
</param>
<param>
<key>_coordinate</key>
<value>(125, 333)</value>
</param>
<param>
<key>_rotation</key>
<value>0</value>
</param>
</block>
<block>
<key>parameter</key>
<param>
<key>id</key>
<value>samp_rate</value>
</param>
<param>
<key>_enabled</key>
<value>True</value>
</param>
<param>
<key>label</key>
<value></value>
</param>
<param>
<key>value</key>
<value>1024000</value>
</param>
<param>
<key>type</key>
<value>eng_float</value>
</param>
<param>
<key>short_id</key>
<value></value>
</param>
<param>
<key>_coordinate</key>
<value>(213, 333)</value>
</param>
<param>
<key>_rotation</key>
<value>0</value>
</param>
</block>
<block>
<key>parameter</key>
<param>
<key>id</key>
<value>safety_freq_offset</value>
</param>
<param>
<key>_enabled</key>
<value>True</value>
</param>
<param>
<key>label</key>
<value></value>
</param>
<param>
<key>value</key>
<value>2e5</value>
</param>
<param>
<key>type</key>
<value>eng_float</value>
</param>
<param>
<key>short_id</key>
<value></value>
</param>
<param>
<key>_coordinate</key>
<value>(306, 333)</value>
</param>
<param>
<key>_rotation</key>
<value>0</value>
</param>
</block>
<block>
<key>blocks_wavfile_sink</key>
<param>
<key>id</key>
<value>blocks_wavfile_sink_1</value>
</param>
<param>
<key>_enabled</key>
<value>True</value>
</param>
<param>
<key>file</key>
<value>iq_output_path</value>
</param>
<param>
<key>nchan</key>
<value>2</value>
</param>
<param>
<key>samp_rate</key>
<value>int(samp_rate/first_decim)</value>
</param>
<param>
<key>bits_per_sample</key>
<value>8</value>
</param>
<param>
<key>affinity</key>
<value></value>
</param>
<param>
<key>_coordinate</key>
<value>(901, 19)</value>
</param>
<param>
<key>_rotation</key>
<value>0</value>
</param>
</block>
<block>
<key>low_pass_filter</key>
<param>
<key>id</key>
<value>low_pass_filter_0</value>
</param>
<param>
<key>_enabled</key>
<value>True</value>
</param>
<param>
<key>type</key>
<value>fir_filter_ccf</value>
</param>
<param>
<key>decim</key>
<value>first_decim</value>
</param>
<param>
<key>interp</key>
<value>1</value>
</param>
<param>
<key>gain</key>
<value>1</value>
</param>
<param>
<key>samp_rate</key>
<value>samp_rate</value>
</param>
<param>
<key>cutoff_freq</key>
<value>17e3</value>
</param>
<param>
<key>width</key>
<value>2e3</value>
</param>
<param>
<key>win</key>
<value>firdes.WIN_HAMMING</value>
</param>
<param>
<key>beta</key>
<value>6.76</value>
</param>
<param>
<key>affinity</key>
<value></value>
</param>
<param>
<key>minoutbuf</key>
<value>0</value>
</param>
<param>
<key>maxoutbuf</key>
<value>0</value>
</param>
<param>
<key>_coordinate</key>
<value>(503, 109)</value>
</param>
<param>
<key>_rotation</key>
<value>0</value>
</param>
</block>
<connection>
<source_block_id>rtlsdr_source_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>freq_xlating_fir_filter_xxx_0</source_block_id>
<sink_block_id>low_pass_filter_0</sink_block_id>
<source_key>0</source_key>
<sink_key>0</sink_key>
</connection>
<connection>
<source_block_id>analog_quadrature_demod_cf_0</source_block_id>
<sink_block_id>low_pass_filter_1</sink_block_id>
<source_key>0</source_key>
<sink_key>0</sink_key>
</connection>
<connection>
<source_block_id>low_pass_filter_1</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>rational_resampler_xxx_0</source_block_id>
<sink_block_id>blocks_wavfile_sink_0</sink_block_id>
<source_key>0</source_key>
<sink_key>0</sink_key>
</connection>
<connection>
<source_block_id>low_pass_filter_0</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>low_pass_filter_0</source_block_id>
<sink_block_id>blocks_complex_to_float_0</sink_block_id>
<source_key>0</source_key>
<sink_key>0</sink_key>
</connection>
<connection>
<source_block_id>blocks_complex_to_float_0</source_block_id>
<sink_block_id>blocks_wavfile_sink_1</sink_block_id>
<source_key>0</source_key>
<sink_key>0</sink_key>
</connection>
<connection>
<source_block_id>blocks_complex_to_float_0</source_block_id>
<sink_block_id>blocks_wavfile_sink_1</sink_block_id>
<source_key>1</source_key>
<sink_key>1</sink_key>
</connection>
</flow_graph>