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<?xml version='1.0' encoding='ASCII'?>
<flow_graph>
<timestamp>Sat Sep 4 23:50:38 2010</timestamp>
<block>
<key>options</key>
<param>
<key>id</key>
<value>gmsk_trx</value>
</param>
<param>
<key>_enabled</key>
<value>True</value>
</param>
<param>
<key>title</key>
<value>Video Transceiver (GMSK)</value>
</param>
<param>
<key>author</key>
<value>Alexandru Csete OZ9AEC</value>
</param>
<param>
<key>description</key>
<value></value>
</param>
<param>
<key>window_size</key>
<value>1100,900</value>
</param>
<param>
<key>generate_options</key>
<value>wx_gui</value>
</param>
<param>
<key>category</key>
<value>Custom</value>
</param>
<param>
<key>run_options</key>
<value>prompt</value>
</param>
<param>
<key>run</key>
<value>True</value>
</param>
<param>
<key>realtime_scheduling</key>
<value></value>
</param>
<param>
<key>_coordinate</key>
<value>(12, 10)</value>
</param>
<param>
<key>_rotation</key>
<value>0</value>
</param>
</block>
<block>
<key>wxgui_fftsink2</key>
<param>
<key>id</key>
<value>wxgui_fftsink2_0</value>
</param>
<param>
<key>_enabled</key>
<value>True</value>
</param>
<param>
<key>type</key>
<value>complex</value>
</param>
<param>
<key>title</key>
<value>FFT Plot</value>
</param>
<param>
<key>samp_rate</key>
<value>samp_rate</value>
</param>
<param>
<key>baseband_freq</key>
<value>freq</value>
</param>
<param>
<key>y_per_div</key>
<value>10</value>
</param>
<param>
<key>y_divs</key>
<value>10</value>
</param>
<param>
<key>ref_level</key>
<value>50</value>
</param>
<param>
<key>ref_scale</key>
<value>2.0</value>
</param>
<param>
<key>fft_size</key>
<value>512</value>
</param>
<param>
<key>fft_rate</key>
<value>15</value>
</param>
<param>
<key>peak_hold</key>
<value>False</value>
</param>
<param>
<key>average</key>
<value>False</value>
</param>
<param>
<key>avg_alpha</key>
<value>0</value>
</param>
<param>
<key>win</key>
<value>None</value>
</param>
<param>
<key>win_size</key>
<value></value>
</param>
<param>
<key>grid_pos</key>
<value></value>
</param>
<param>
<key>notebook</key>
<value></value>
</param>
<param>
<key>_coordinate</key>
<value>(241, 272)</value>
</param>
<param>
<key>_rotation</key>
<value>0</value>
</param>
</block>
<block>
<key>variable</key>
<param>
<key>id</key>
<value>samp_rate</value>
</param>
<param>
<key>_enabled</key>
<value>True</value>
</param>
<param>
<key>value</key>
<value>1000000</value>
</param>
<param>
<key>_coordinate</key>
<value>(206, 13)</value>
</param>
<param>
<key>_rotation</key>
<value>0</value>
</param>
</block>
<block>
<key>variable</key>
<param>
<key>id</key>
<value>freq</value>
</param>
<param>
<key>_enabled</key>
<value>True</value>
</param>
<param>
<key>value</key>
<value>1280500000</value>
</param>
<param>
<key>_coordinate</key>
<value>(305, 14)</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>1</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>350000</value>
</param>
<param>
<key>width</key>
<value>50000</value>
</param>
<param>
<key>win</key>
<value>firdes.WIN_HAMMING</value>
</param>
<param>
<key>beta</key>
<value>6.76</value>
</param>
<param>
<key>_coordinate</key>
<value>(243, 115)</value>
</param>
<param>
<key>_rotation</key>
<value>0</value>
</param>
</block>
<block>
<key>gr_multiply_const_vxx</key>
<param>
<key>id</key>
<value>gr_multiply_const_vxx_0</value>
</param>
<param>
<key>_enabled</key>
<value>True</value>
</param>
<param>
<key>type</key>
<value>complex</value>
</param>
<param>
<key>const</key>
<value>signal</value>
</param>
<param>
<key>vlen</key>
<value>1</value>
</param>
<param>
<key>_coordinate</key>
<value>(649, 672)</value>
</param>
<param>
<key>_rotation</key>
<value>0</value>
</param>
</block>
<block>
<key>variable_slider</key>
<param>
<key>id</key>
<value>signal</value>
</param>
<param>
<key>_enabled</key>
<value>True</value>
</param>
<param>
<key>label</key>
<value>Signal</value>
</param>
<param>
<key>value</key>
<value>5000</value>
</param>
<param>
<key>min</key>
<value>0</value>
</param>
<param>
<key>max</key>
<value>32000</value>
</param>
<param>
<key>num_steps</key>
<value>320</value>
</param>
<param>
<key>style</key>
<value>wx.SL_HORIZONTAL</value>
</param>
<param>
<key>converver</key>
<value>float_converter</value>
</param>
<param>
<key>grid_pos</key>
<value></value>
</param>
<param>
<key>notebook</key>
<value></value>
</param>
<param>
<key>_coordinate</key>
<value>(463, 502)</value>
</param>
<param>
<key>_rotation</key>
<value>0</value>
</param>
</block>
<block>
<key>variable_slider</key>
<param>
<key>id</key>
<value>rfgain_tx</value>
</param>
<param>
<key>_enabled</key>
<value>True</value>
</param>
<param>
<key>label</key>
<value>TX Gain</value>
</param>
<param>
<key>value</key>
<value>0</value>
</param>
<param>
<key>min</key>
<value>0</value>
</param>
<param>
<key>max</key>
<value>50</value>
</param>
<param>
<key>num_steps</key>
<value>50</value>
</param>
<param>
<key>style</key>
<value>wx.SL_HORIZONTAL</value>
</param>
<param>
<key>converver</key>
<value>float_converter</value>
</param>
<param>
<key>grid_pos</key>
<value></value>
</param>
<param>
<key>notebook</key>
<value></value>
</param>
<param>
<key>_coordinate</key>
<value>(644, 503)</value>
</param>
<param>
<key>_rotation</key>
<value>0</value>
</param>
</block>
<block>
<key>usrp_simple_source_x</key>
<param>
<key>id</key>
<value>usrp_simple_source_x_0</value>
</param>
<param>
<key>_enabled</key>
<value>True</value>
</param>
<param>
<key>type</key>
<value>complex</value>
</param>
<param>
<key>format</key>
<value></value>
</param>
<param>
<key>which</key>
<value>0</value>
</param>
<param>
<key>decimation</key>
<value>64</value>
</param>
<param>
<key>frequency</key>
<value>freq</value>
</param>
<param>
<key>lo_offset</key>
<value>float('inf')</value>
</param>
<param>
<key>gain</key>
<value>rfgain_rx</value>
</param>
<param>
<key>side</key>
<value>A</value>
</param>
<param>
<key>rx_ant</key>
<value>RX2</value>
</param>
<param>
<key>hb_filters</key>
<value></value>
</param>
<param>
<key>_coordinate</key>
<value>(11, 123)</value>
</param>
<param>
<key>_rotation</key>
<value>0</value>
</param>
</block>
<block>
<key>blks2_gmsk_mod</key>
<param>
<key>id</key>
<value>blks2_gmsk_mod_0</value>
</param>
<param>
<key>_enabled</key>
<value>True</value>
</param>
<param>
<key>samples_per_symbol</key>
<value>2</value>
</param>
<param>
<key>bt</key>
<value>0.35</value>
</param>
<param>
<key>verbose</key>
<value>False</value>
</param>
<param>
<key>log</key>
<value>False</value>
</param>
<param>
<key>_coordinate</key>
<value>(437, 664)</value>
</param>
<param>
<key>_rotation</key>
<value>0</value>
</param>
</block>
<block>
<key>usrp_simple_sink_x</key>
<param>
<key>id</key>
<value>usrp_simple_sink_x_0</value>
</param>
<param>
<key>_enabled</key>
<value>True</value>
</param>
<param>
<key>type</key>
<value>complex</value>
</param>
<param>
<key>which</key>
<value>0</value>
</param>
<param>
<key>interpolation</key>
<value>128</value>
</param>
<param>
<key>frequency</key>
<value>freq</value>
</param>
<param>
<key>lo_offset</key>
<value>float('inf')</value>
</param>
<param>
<key>gain</key>
<value>rfgain_tx</value>
</param>
<param>
<key>side</key>
<value>B</value>
</param>
<param>
<key>transmit</key>
<value>auto_tr</value>
</param>
<param>
<key>_coordinate</key>
<value>(849, 632)</value>
</param>
<param>
<key>_rotation</key>
<value>0</value>
</param>
</block>
<block>
<key>variable_slider</key>
<param>
<key>id</key>
<value>rfgain_rx</value>
</param>
<param>
<key>_enabled</key>
<value>True</value>
</param>
<param>
<key>label</key>
<value>RX Gain</value>
</param>
<param>
<key>value</key>
<value>15</value>
</param>
<param>
<key>min</key>
<value>0</value>
</param>
<param>
<key>max</key>
<value>100</value>
</param>
<param>
<key>num_steps</key>
<value>100</value>
</param>
<param>
<key>style</key>
<value>wx.SL_HORIZONTAL</value>
</param>
<param>
<key>converver</key>
<value>float_converter</value>
</param>
<param>
<key>grid_pos</key>
<value></value>
</param>
<param>
<key>notebook</key>
<value></value>
</param>
<param>
<key>_coordinate</key>
<value>(32, 303)</value>
</param>
<param>
<key>_rotation</key>
<value>0</value>
</param>
</block>
<block>
<key>gr_file_source</key>
<param>
<key>id</key>
<value>gr_file_source_0</value>
</param>
<param>
<key>_enabled</key>
<value>True</value>
</param>
<param>
<key>file</key>
<value>txfifo.ts</value>
</param>
<param>
<key>type</key>
<value>byte</value>
</param>
<param>
<key>repeat</key>
<value>False</value>
</param>
<param>
<key>vlen</key>
<value>1</value>
</param>
<param>
<key>_coordinate</key>
<value>(29, 664)</value>
</param>
<param>
<key>_rotation</key>
<value>0</value>
</param>
</block>
<block>
<key>blks2_packet_encoder</key>
<param>
<key>id</key>
<value>blks2_packet_encoder_0</value>
</param>
<param>
<key>_enabled</key>
<value>True</value>
</param>
<param>
<key>type</key>
<value>byte</value>
</param>
<param>
<key>samples_per_symbol</key>
<value>2</value>
</param>
<param>
<key>bits_per_symbol</key>
<value>1</value>
</param>
<param>
<key>access_code</key>
<value></value>
</param>
<param>
<key>pad_for_usrp</key>
<value>False</value>
</param>
<param>
<key>payload_length</key>
<value>4000</value>
</param>
<param>
<key>_coordinate</key>
<value>(226, 640)</value>
</param>
<param>
<key>_rotation</key>
<value>0</value>
</param>
</block>
<block>
<key>blks2_gmsk_demod</key>
<param>
<key>id</key>
<value>blks2_gmsk_demod_0</value>
</param>
<param>
<key>_enabled</key>
<value>True</value>
</param>
<param>
<key>samples_per_symbol</key>
<value>2</value>
</param>
<param>
<key>gain_mu</key>
<value>0.175</value>
</param>
<param>
<key>mu</key>
<value>0.5</value>
</param>
<param>
<key>omega_relative_limit</key>
<value>0.005</value>
</param>
<param>
<key>freq_error</key>
<value>0.0</value>
</param>
<param>
<key>verbose</key>
<value>False</value>
</param>
<param>
<key>log</key>
<value>False</value>
</param>
<param>
<key>_coordinate</key>
<value>(458, 131)</value>
</param>
<param>
<key>_rotation</key>
<value>0</value>
</param>
</block>
<block>
<key>gr_file_sink</key>
<param>
<key>id</key>
<value>gr_file_sink_1</value>
</param>
<param>
<key>_enabled</key>
<value>True</value>
</param>
<param>
<key>file</key>
<value>rxfifo.ts</value>
</param>
<param>
<key>type</key>
<value>byte</value>
</param>
<param>
<key>vlen</key>
<value>1</value>
</param>
<param>
<key>unbuffered</key>
<value>False</value>
</param>
<param>
<key>_coordinate</key>
<value>(917, 155)</value>
</param>
<param>
<key>_rotation</key>
<value>0</value>
</param>
</block>
<block>
<key>blks2_packet_decoder</key>
<param>
<key>id</key>
<value>blks2_packet_decoder_0</value>
</param>
<param>
<key>_enabled</key>
<value>True</value>
</param>
<param>
<key>type</key>
<value>byte</value>
</param>
<param>
<key>access_code</key>
<value></value>
</param>
<param>
<key>threshold</key>
<value>-1</value>
</param>
<param>
<key>_coordinate</key>
<value>(710, 155)</value>
</param>
<param>
<key>_rotation</key>
<value>0</value>
</param>
</block>
<connection>
<source_block_id>usrp_simple_source_x_0</source_block_id>
<sink_block_id>wxgui_fftsink2_0</sink_block_id>
<source_key>0</source_key>
<sink_key>0</sink_key>
</connection>
<connection>
<source_block_id>usrp_simple_source_x_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>low_pass_filter_0</source_block_id>
<sink_block_id>blks2_gmsk_demod_0</sink_block_id>
<source_key>0</source_key>
<sink_key>0</sink_key>
</connection>
<connection>
<source_block_id>gr_multiply_const_vxx_0</source_block_id>
<sink_block_id>usrp_simple_sink_x_0</sink_block_id>
<source_key>0</source_key>
<sink_key>0</sink_key>
</connection>
<connection>
<source_block_id>blks2_gmsk_mod_0</source_block_id>
<sink_block_id>gr_multiply_const_vxx_0</sink_block_id>
<source_key>0</source_key>
<sink_key>0</sink_key>
</connection>
<connection>
<source_block_id>blks2_packet_encoder_0</source_block_id>
<sink_block_id>blks2_gmsk_mod_0</sink_block_id>
<source_key>0</source_key>
<sink_key>0</sink_key>
</connection>
<connection>
<source_block_id>gr_file_source_0</source_block_id>
<sink_block_id>blks2_packet_encoder_0</sink_block_id>
<source_key>0</source_key>
<sink_key>0</sink_key>
</connection>
<connection>
<source_block_id>blks2_gmsk_demod_0</source_block_id>
<sink_block_id>blks2_packet_decoder_0</sink_block_id>
<source_key>0</source_key>
<sink_key>0</sink_key>
</connection>
<connection>
<source_block_id>blks2_packet_decoder_0</source_block_id>
<sink_block_id>gr_file_sink_1</sink_block_id>
<source_key>0</source_key>
<sink_key>0</sink_key>
</connection>
</flow_graph>
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