Re: [Discuss-gnuradio] Multiple-Transmitter OFDM

<?xml version='1.0' encoding='utf-8'?>
<?grc format='1' created='3.7.13'?>
<flow_graph>
<timestamp>Thu Jan 17 14:32:20 2019</timestamp>
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<key>author</key>
<value></value>
</param>
<param>
<key>window_size</key>
<value>2000,2000</value>
</param>
<param>
<key>category</key>
<value>[GRC Hier Blocks]</value>
</param>
<param>
<key>comment</key>
<value></value>
</param>
<param>
<key>description</key>
<value></value>
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<param>
<key>generate_options</key>
<value>qt_gui</value>
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<param>
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<value>.:</value>
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<key>id</key>
<value>test</value>
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<value>0</value>
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<key>qt_qss_theme</key>
<value></value>
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<key>realtime_scheduling</key>
<value></value>
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<param>
<key>run_command</key>
<value>{python} -u {filename}</value>
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<param>
<key>run_options</key>
<value>prompt</value>
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<param>
<key>run</key>
<value>True</value>
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<key>title</key>
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<param>
<key>comment</key>
<value></value>
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<param>
<key>_enabled</key>
<value>True</value>
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<param>
<key>_coordinate</key>
<value>(472, 228)</value>
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<key>_rotation</key>
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<param>
<key>id</key>
<value>atten</value>
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<key>value</key>
<value>100</value>
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<param>
<key>comment</key>
<value></value>
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<value>center_freq</value>
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<key>value</key>
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<value></value>
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<key>value</key>
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<key>comment</key>
<value></value>
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<value>(400, 228)</value>
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<key>_rotation</key>
<value>0</value>
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<param>
<key>id</key>
<value>ch_tb</value>
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<param>
<key>value</key>
<value>100e3</value>
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<block>
<key>variable</key>
<param>
<key>comment</key>
<value></value>
</param>
<param>
<key>_enabled</key>
<value>True</value>
</param>
<param>
<key>_coordinate</key>
<value>(360, 380)</value>
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<param>
<key>_rotation</key>
<value>0</value>
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<param>
<key>id</key>
<value>chan_atten</value>
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<param>
<key>value</key>
<value>100</value>
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<block>
<key>variable</key>
<param>
<key>comment</key>
<value></value>
</param>
<param>
<key>_enabled</key>
<value>True</value>
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<param>
<key>_coordinate</key>
<value>(176, 380)</value>
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<param>
<key>_rotation</key>
<value>0</value>
</param>
<param>
<key>id</key>
<value>chan_ch_bw</value>
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<param>
<key>value</key>
<value>160e3</value>
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<block>
<key>variable</key>
<param>
<key>comment</key>
<value></value>
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<param>
<key>_enabled</key>
<value>True</value>
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<key>_coordinate</key>
<value>(272, 380)</value>
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<key>_rotation</key>
<value>0</value>
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<param>
<key>id</key>
<value>chan_ch_tb</value>
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<param>
<key>value</key>
<value>10e3</value>
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<block>
<key>variable</key>
<param>
<key>comment</key>
<value></value>
</param>
<param>
<key>_enabled</key>
<value>True</value>
</param>
<param>
<key>_coordinate</key>
<value>(176, 436)</value>
</param>
<param>
<key>_rotation</key>
<value>0</value>
</param>
<param>
<key>id</key>
<value>chan_channels</value>
</param>
<param>
<key>value</key>
<value>2</value>
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<block>
<key>variable</key>
<param>
<key>comment</key>
<value></value>
</param>
<param>
<key>_enabled</key>
<value>True</value>
</param>
<param>
<key>_coordinate</key>
<value>(448, 380)</value>
</param>
<param>
<key>_rotation</key>
<value>0</value>
</param>
<param>
<key>id</key>
<value>chan_ftaps</value>
</param>
<param>
<key>value</key>
<value>firdes.low_pass_2(1, samp_rate, ch_bw, ch_tb, atten, firdes.WIN_HANN)</value>
</param>
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<block>
<key>variable</key>
<param>
<key>comment</key>
<value></value>
</param>
<param>
<key>_enabled</key>
<value>True</value>
</param>
<param>
<key>_coordinate</key>
<value>(320, 284)</value>
</param>
<param>
<key>_rotation</key>
<value>0</value>
</param>
<param>
<key>id</key>
<value>channels</value>
</param>
<param>
<key>value</key>
<value>16</value>
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<block>
<key>variable</key>
<param>
<key>comment</key>
<value></value>
</param>
<param>
<key>_enabled</key>
<value>True</value>
</param>
<param>
<key>_coordinate</key>
<value>(312, 12)</value>
</param>
<param>
<key>_rotation</key>
<value>0</value>
</param>
<param>
<key>id</key>
<value>fft_len</value>
</param>
<param>
<key>value</key>
<value>128</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>(560, 228)</value>
</param>
<param>
<key>_rotation</key>
<value>0</value>
</param>
<param>
<key>id</key>
<value>ftaps</value>
</param>
<param>
<key>value</key>
<value>firdes.low_pass_2(1, samp_rate, ch_bw, ch_tb, atten, firdes.WIN_HANN)</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>(880, 84)</value>
</param>
<param>
<key>_rotation</key>
<value>0</value>
</param>
<param>
<key>id</key>
<value>header_equalizer</value>
</param>
<param>
<key>value</key>
<value>digital.ofdm_equalizer_simpledfe(fft_len, header_mod.base(), occupied_carriers, pilot_carriers, pilot_symbols)</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>(864, 12)</value>
</param>
<param>
<key>_rotation</key>
<value>0</value>
</param>
<param>
<key>id</key>
<value>header_formatter</value>
</param>
<param>
<key>value</key>
<value>digital.packet_header_ofdm(occupied_carriers, n_syms=1, len_tag_key=packet_length_tag_key, frame_len_tag_key=length_tag_key, bits_per_header_sym=header_mod.bits_per_symbol(), bits_per_payload_sym=payload_mod.bits_per_symbol(), scramble_header=False)</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>(504, 12)</value>
</param>
<param>
<key>_rotation</key>
<value>0</value>
</param>
<param>
<key>id</key>
<value>header_mod</value>
</param>
<param>
<key>value</key>
<value>digital.constellation_bpsk()</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>(376, 12)</value>
</param>
<param>
<key>_rotation</key>
<value>0</value>
</param>
<param>
<key>id</key>
<value>length_tag_key</value>
</param>
<param>
<key>value</key>
<value>"frame_len"</value>
</param>
</block>
<block>
<key>variable</key>
<param>
<key>comment</key>
<value></value>
</param>
<param>
<key>_enabled</key>
<value>1</value>
</param>
<param>
<key>_coordinate</key>
<value>(200, 52)</value>
</param>
<param>
<key>_rotation</key>
<value>0</value>
</param>
<param>
<key>id</key>
<value>min_obuffer</value>
</param>
<param>
<key>value</key>
<value>2**16</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>(800, 148)</value>
</param>
<param>
<key>_rotation</key>
<value>0</value>
</param>
<param>
<key>id</key>
<value>occupied_carriers</value>
</param>
<param>
<key>value</key>
<value>(range(-52, -49) + range(-48, -35) + range(-34, -21) + range(-20, -7) + range(-6, 0) + range(1, 7) + range(8, 21) + range(22, 35) + range(36, 49) + range(50, 52),)</value>
</param>
</block>
<block>
<key>variable</key>
<param>
<key>comment</key>
<value></value>
</param>
<param>
<key>_enabled</key>
<value>1</value>
</param>
<param>
<key>_coordinate</key>
<value>(720, 340)</value>
</param>
<param>
<key>_rotation</key>
<value>0</value>
</param>
<param>
<key>id</key>
<value>occupied_carriers_0</value>
</param>
<param>
<key>value</key>
<value>( range(-20, -7) + range(-6, 0) + range(1, 7) + range(8, 21),)</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>(1128, 92)</value>
</param>
<param>
<key>_rotation</key>
<value>0</value>
</param>
<param>
<key>id</key>
<value>packet_len</value>
</param>
<param>
<key>value</key>
<value>96</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>(1120, 28)</value>
</param>
<param>
<key>_rotation</key>
<value>0</value>
</param>
<param>
<key>id</key>
<value>packet_length_tag_key</value>
</param>
<param>
<key>value</key>
<value>"packet_len"</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>(880, 84)</value>
</param>
<param>
<key>_rotation</key>
<value>0</value>
</param>
<param>
<key>id</key>
<value>payload_equalizer</value>
</param>
<param>
<key>value</key>
<value>digital.ofdm_equalizer_simpledfe(fft_len, payload_mod.base(), occupied_carriers, pilot_carriers, pilot_symbols, 1)</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>(672, 12)</value>
</param>
<param>
<key>_rotation</key>
<value>0</value>
</param>
<param>
<key>id</key>
<value>payload_mod</value>
</param>
<param>
<key>value</key>
<value>digital.constellation_qpsk()</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>(952, 148)</value>
</param>
<param>
<key>_rotation</key>
<value>0</value>
</param>
<param>
<key>id</key>
<value>pilot_carriers</value>
</param>
<param>
<key>value</key>
<value>((-49, -35, -21, -7, 7, 21, 35, 49),)</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>(864, 340)</value>
</param>
<param>
<key>_rotation</key>
<value>0</value>
</param>
<param>
<key>id</key>
<value>pilot_carriers_0</value>
</param>
<param>
<key>value</key>
<value>((-21, -7,7,21),)</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>(1104, 148)</value>
</param>
<param>
<key>_rotation</key>
<value>0</value>
</param>
<param>
<key>id</key>
<value>pilot_symbols</value>
</param>
<param>
<key>value</key>
<value>((1,-1,1, -1, 1, -1, -1, -1),)</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>(984, 340)</value>
</param>
<param>
<key>_rotation</key>
<value>0</value>
</param>
<param>
<key>id</key>
<value>pilot_symbols_0</value>
</param>
<param>
<key>value</key>
<value>((1,-1,1, -1),)</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>(512, 84)</value>
</param>
<param>
<key>_rotation</key>
<value>0</value>
</param>
<param>
<key>id</key>
<value>redundant_len</value>
</param>
<param>
<key>value</key>
<value>16</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>(112, 156)</value>
</param>
<param>
<key>_rotation</key>
<value>0</value>
</param>
<param>
<key>id</key>
<value>rf_gain</value>
</param>
<param>
<key>value</key>
<value>30</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>(88, 236)</value>
</param>
<param>
<key>_rotation</key>
<value>0</value>
</param>
<param>
<key>id</key>
<value>rx_center_freq</value>
</param>
<param>
<key>value</key>
<value>900e6</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>(0, 236)</value>
</param>
<param>
<key>_rotation</key>
<value>180</value>
</param>
<param>
<key>id</key>
<value>rx_gain</value>
</param>
<param>
<key>value</key>
<value>0</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>(8, 84)</value>
</param>
<param>
<key>_rotation</key>
<value>0</value>
</param>
<param>
<key>id</key>
<value>samp_rate</value>
</param>
<param>
<key>value</key>
<value>1000000</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>(512, 140)</value>
</param>
<param>
<key>_rotation</key>
<value>0</value>
</param>
<param>
<key>id</key>
<value>sync_word1</value>
</param>
<param>
<key>value</key>
<value>[0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, -1.4142135623730951, 0.0, -1.4142135623730951, 0.0, -1.4142135623730951, 0.0, -1.4142135623730951, 0.0, 1.4142135623730951, 0.0, 1.4142135623730951, 0.0, -1.4142135623730951, 0.0, -1.4142135623730951, 0.0, -1.4142135623730951, 0.0, 1.4142135623730951, 0.0, -1.4142135623730951, 0.0, 1.4142135623730951, 0.0, 1.4142135623730951, 0.0, 1.4142135623730951, 0.0, 1.4142135623730951, 0.0, 1.4142135623730951, 0.0, -1.4142135623730951, 0.0, -1.4142135623730951, 0.0, -1.4142135623730951, 0.0, -1.4142135623730951, 0.0, -1.4142135623730951, 0.0, 1.4142135623730951, 0.0, -1.4142135623730951, 0.0, -1.4142135623730951, 0.0, 1.4142135623730951, 0.0, -1.4142135623730951, 0.0, 1.4142135623730951, 0.0, -1.4142135623730951, 0.0, 1.4142135623730951, 0.0, 1.4142135623730951, 0.0, 1.4142135623730951, 0.0, -1.4142135623730951, 0.0, 1.4142135623730951, 0.0, 1.4142135623730951, 0.0, 1.4142135623730951, 0.0, -1.4142135623730951, 0.0, 1.4142135623730951, 0.0, 1.4142135623730951, 0.0, 1.4142135623730951, 0.0, 1.4142135623730951, 0.0, -1.4142135623730951, 0.0, 1.4142135623730951, 0.0, -1.4142135623730951, 0.0, -1.4142135623730951, 0.0, -1.4142135623730951, 0.0, 1.4142135623730951, 0.0, -1.4142135623730951, 0.0, 1.4142135623730951, 0.0, -1.4142135623730951, 0.0, -1.4142135623730951, 0.0, -1.4142135623730951, 0.0, -1.4142135623730951, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0]</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>(656, 140)</value>
</param>
<param>
<key>_rotation</key>
<value>0</value>
</param>
<param>
<key>id</key>
<value>sync_word2</value>
</param>
<param>
<key>value</key>
<value>[0j, 0j, 0j, 0j, 0j, 0j, 0j, 0j, 0j, 0j, 0j, 0j, (-1+0j), (1+0j), (-1+0j), (1+0j), (-1+0j), (-1+0j), (1+0j), (1+0j), (1+0j), (1+0j), (1+0j), (1+0j), (1+0j), (1+0j), (-1+0j), (-1+0j), (1+0j), (-1+0j), (-1+0j), (-1+0j), (-1+0j), (1+0j), (-1+0j), (1+0j), (-1+0j), (-1+0j), (-1+0j), (1+0j), (-1+0j), (1+0j), (-1+0j), (1+0j), (-1+0j), (1+0j), (1+0j), (-1+0j), (1+0j), (-1+0j), (-1+0j), (-1+0j), (-1+0j), (-1+0j), (-1+0j), (-1+0j), (-1+0j), (-1+0j), (-1+0j), (-1+0j), (1+0j), (1+0j), (-1+0j), (-1+0j), 0j, (1+0j), (-1+0j), (1+0j), (1+0j), (1+0j), (-1+0j), (1+0j), (1+0j), (1+0j), (-1+0j), (1+0j), (1+0j), (1+0j), (1+0j), (-1+0j), (1+0j), (-1+0j), (-1+0j), (-1+0j), (1+0j), (-1+0j), (1+0j), (-1+0j), (-1+0j), (-1+0j), (-1+0j), (-1+0j), (-1+0j), (-1+0j), (-1+0j), (1+0j), (1+0j), (-1+0j), (-1+0j), (-1+0j), (1+0j), (-1+0j), (1+0j), (1+0j), (1+0j), (1+0j), (1+0j), (-1+0j), (-1+0j), (-1+0j), (-1+0j), (-1+0j), (1+0j), (-1+0j), (-1+0j), (1+0j), 0j, 0j, 0j, 0j, 0j, 0j, 0j, 0j, 0j, 0j, 0j, 0j]</value>
</param>
</block>
<block>
<key>blocks_file_sink</key>
<param>
<key>append</key>
<value>False</value>
</param>
<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>file</key>
<value>/home/rcetin/ofdm_rx_1</value>
</param>
<param>
<key>_coordinate</key>
<value>(1568, 404)</value>
</param>
<param>
<key>_rotation</key>
<value>0</value>
</param>
<param>
<key>id</key>
<value>blocks_file_sink_0</value>
</param>
<param>
<key>type</key>
<value>byte</value>
</param>
<param>
<key>unbuffered</key>
<value>False</value>
</param>
<param>
<key>vlen</key>
<value>1</value>
</param>
</block>
<block>
<key>blocks_file_sink</key>
<param>
<key>append</key>
<value>False</value>
</param>
<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>file</key>
<value>/home/rcetin/ofdm_rx_2</value>
</param>
<param>
<key>_coordinate</key>
<value>(1632, 884)</value>
</param>
<param>
<key>_rotation</key>
<value>0</value>
</param>
<param>
<key>id</key>
<value>blocks_file_sink_0_0</value>
</param>
<param>
<key>type</key>
<value>byte</value>
</param>
<param>
<key>unbuffered</key>
<value>False</value>
</param>
<param>
<key>vlen</key>
<value>1</value>
</param>
</block>
<block>
<key>blocks_message_debug</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>0</value>
</param>
<param>
<key>_coordinate</key>
<value>(920, 1624)</value>
</param>
<param>
<key>_rotation</key>
<value>0</value>
</param>
<param>
<key>id</key>
<value>blocks_message_debug_0</value>
</param>
</block>
<block>
<key>blocks_message_debug</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>0</value>
</param>
<param>
<key>_coordinate</key>
<value>(896, 1832)</value>
</param>
<param>
<key>_rotation</key>
<value>0</value>
</param>
<param>
<key>id</key>
<value>blocks_message_debug_0_0</value>
</param>
</block>
<block>
<key>blocks_pdu_to_tagged_stream</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>0</value>
</param>
<param>
<key>_coordinate</key>
<value>(1040, 1732)</value>
</param>
<param>
<key>_rotation</key>
<value>0</value>
</param>
<param>
<key>id</key>
<value>blocks_pdu_to_tagged_stream_0</value>
</param>
<param>
<key>type</key>
<value>byte</value>
</param>
<param>
<key>tag</key>
<value>packet_len</value>
</param>
<param>
<key>maxoutbuf</key>
<value>0</value>
</param>
<param>
<key>minoutbuf</key>
<value>min_obuffer</value>
</param>
</block>
<block>
<key>blocks_tag_debug</key>
<param>
<key>alias</key>
<value></value>
</param>
<param>
<key>comment</key>
<value></value>
</param>
<param>
<key>affinity</key>
<value></value>
</param>
<param>
<key>display</key>
<value>True</value>
</param>
<param>
<key>_enabled</key>
<value>1</value>
</param>
<param>
<key>_coordinate</key>
<value>(1568, 332)</value>
</param>
<param>
<key>_rotation</key>
<value>0</value>
</param>
<param>
<key>id</key>
<value>blocks_tag_debug_0</value>
</param>
<param>
<key>type</key>
<value>byte</value>
</param>
<param>
<key>filter</key>
<value>""</value>
</param>
<param>
<key>name</key>
<value>Rx'd Packets</value>
</param>
<param>
<key>num_inputs</key>
<value>1</value>
</param>
<param>
<key>vlen</key>
<value>1</value>
</param>
</block>
<block>
<key>blocks_tag_debug</key>
<param>
<key>alias</key>
<value></value>
</param>
<param>
<key>comment</key>
<value></value>
</param>
<param>
<key>affinity</key>
<value></value>
</param>
<param>
<key>display</key>
<value>True</value>
</param>
<param>
<key>_enabled</key>
<value>1</value>
</param>
<param>
<key>_coordinate</key>
<value>(1632, 812)</value>
</param>
<param>
<key>_rotation</key>
<value>0</value>
</param>
<param>
<key>id</key>
<value>blocks_tag_debug_0_0</value>
</param>
<param>
<key>type</key>
<value>byte</value>
</param>
<param>
<key>filter</key>
<value>""</value>
</param>
<param>
<key>name</key>
<value>Rx'd Packets 2</value>
</param>
<param>
<key>num_inputs</key>
<value>1</value>
</param>
<param>
<key>vlen</key>
<value>1</value>
</param>
</block>
<block>
<key>blocks_tag_debug</key>
<param>
<key>alias</key>
<value></value>
</param>
<param>
<key>comment</key>
<value></value>
</param>
<param>
<key>affinity</key>
<value></value>
</param>
<param>
<key>display</key>
<value>True</value>
</param>
<param>
<key>_enabled</key>
<value>0</value>
</param>
<param>
<key>_coordinate</key>
<value>(400, 1380)</value>
</param>
<param>
<key>_rotation</key>
<value>0</value>
</param>
<param>
<key>id</key>
<value>blocks_tag_debug_1</value>
</param>
<param>
<key>type</key>
<value>complex</value>
</param>
<param>
<key>filter</key>
<value>""</value>
</param>
<param>
<key>name</key>
<value>tx</value>
</param>
<param>
<key>num_inputs</key>
<value>1</value>
</param>
<param>
<key>vlen</key>
<value>1</value>
</param>
</block>
<block>
<key>blocks_tagged_stream_to_pdu</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>0</value>
</param>
<param>
<key>_coordinate</key>
<value>(552, 1308)</value>
</param>
<param>
<key>_rotation</key>
<value>0</value>
</param>
<param>
<key>id</key>
<value>blocks_tagged_stream_to_pdu_0</value>
</param>
<param>
<key>type</key>
<value>byte</value>
</param>
<param>
<key>tag</key>
<value>packet_len</value>
</param>
<param>
<key>maxoutbuf</key>
<value>0</value>
</param>
<param>
<key>minoutbuf</key>
<value>min_obuffer</value>
</param>
</block>
<block>
<key>blocks_tuntap_pdu</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>0</value>
</param>
<param>
<key>istunflag</key>
<value>False</value>
</param>
<param>
<key>_coordinate</key>
<value>(656, 1684)</value>
</param>
<param>
<key>_rotation</key>
<value>0</value>
</param>
<param>
<key>id</key>
<value>blocks_tuntap_pdu_0</value>
</param>
<param>
<key>ifn</key>
<value>tap0</value>
</param>
<param>
<key>mtu</key>
<value>900</value>
</param>
<param>
<key>maxoutbuf</key>
<value>0</value>
</param>
<param>
<key>minoutbuf</key>
<value>min_obuffer</value>
</param>
</block>
<block>
<key>digital_ofdm_rx</key>
<param>
<key>alias</key>
<value></value>
</param>
<param>
<key>comment</key>
<value></value>
</param>
<param>
<key>affinity</key>
<value></value>
</param>
<param>
<key>cp_len</key>
<value>fft_len/4</value>
</param>
<param>
<key>_enabled</key>
<value>1</value>
</param>
<param>
<key>fft_len</key>
<value>fft_len</value>
</param>
<param>
<key>_coordinate</key>
<value>(1288, 284)</value>
</param>
<param>
<key>_rotation</key>
<value>0</value>
</param>
<param>
<key>header_mod</key>
<value>"BPSK"</value>
</param>
<param>
<key>id</key>
<value>digital_ofdm_rx_0</value>
</param>
<param>
<key>log</key>
<value>False</value>
</param>
<param>
<key>maxoutbuf</key>
<value>0</value>
</param>
<param>
<key>minoutbuf</key>
<value>min_obuffer</value>
</param>
<param>
<key>occupied_carriers</key>
<value>occupied_carriers_0</value>
</param>
<param>
<key>packet_len_key</key>
<value>packet_length_tag_key</value>
</param>
<param>
<key>payload_mod</key>
<value>"QPSK"</value>
</param>
<param>
<key>pilot_carriers</key>
<value>pilot_carriers_0</value>
</param>
<param>
<key>pilot_symbols</key>
<value>pilot_symbols_0</value>
</param>
<param>
<key>scramble_bits</key>
<value>False</value>
</param>
<param>
<key>sync_word1</key>
<value>()</value>
</param>
<param>
<key>sync_word2</key>
<value>()</value>
</param>
</block>
<block>
<key>digital_ofdm_rx</key>
<param>
<key>alias</key>
<value></value>
</param>
<param>
<key>comment</key>
<value></value>
</param>
<param>
<key>affinity</key>
<value></value>
</param>
<param>
<key>cp_len</key>
<value>fft_len/4</value>
</param>
<param>
<key>_enabled</key>
<value>1</value>
</param>
<param>
<key>fft_len</key>
<value>fft_len</value>
</param>
<param>
<key>_coordinate</key>
<value>(1320, 812)</value>
</param>
<param>
<key>_rotation</key>
<value>0</value>
</param>
<param>
<key>header_mod</key>
<value>"BPSK"</value>
</param>
<param>
<key>id</key>
<value>digital_ofdm_rx_0_0</value>
</param>
<param>
<key>log</key>
<value>False</value>
</param>
<param>
<key>maxoutbuf</key>
<value>0</value>
</param>
<param>
<key>minoutbuf</key>
<value>min_obuffer</value>
</param>
<param>
<key>occupied_carriers</key>
<value>occupied_carriers_0</value>
</param>
<param>
<key>packet_len_key</key>
<value>packet_length_tag_key</value>
</param>
<param>
<key>payload_mod</key>
<value>"QPSK"</value>
</param>
<param>
<key>pilot_carriers</key>
<value>pilot_carriers_0</value>
</param>
<param>
<key>pilot_symbols</key>
<value>pilot_symbols_0</value>
</param>
<param>
<key>scramble_bits</key>
<value>False</value>
</param>
<param>
<key>sync_word1</key>
<value>()</value>
</param>
<param>
<key>sync_word2</key>
<value>()</value>
</param>
</block>
<block>
<key>import</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>(176, 12)</value>
</param>
<param>
<key>_rotation</key>
<value>0</value>
</param>
<param>
<key>id</key>
<value>import_1</value>
</param>
<param>
<key>import</key>
<value>from gnuradio.digital.utils import tagged_streams</value>
</param>
</block>
<block>
<key>pfb_channelizer_ccf</key>
<param>
<key>atten</key>
<value>100</value>
</param>
<param>
<key>alias</key>
<value></value>
</param>
<param>
<key>bus_conns</key>
<value>[[0,],]</value>
</param>
<param>
<key>ch_map</key>
<value>[]</value>
</param>
<param>
<key>nchans</key>
<value>chan_channels</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>(1144, 580)</value>
</param>
<param>
<key>_rotation</key>
<value>0</value>
</param>
<param>
<key>id</key>
<value>pfb_channelizer_ccf_0</value>
</param>
<param>
<key>maxoutbuf</key>
<value>0</value>
</param>
<param>
<key>minoutbuf</key>
<value>0</value>
</param>
<param>
<key>osr</key>
<value>1.0</value>
</param>
<param>
<key>samp_delay</key>
<value>0</value>
</param>
<param>
<key>taps</key>
<value>chan_ftaps</value>
</param>
</block>
<block>
<key>qtgui_const_sink_x</key>
<param>
<key>autoscale</key>
<value>False</value>
</param>
<param>
<key>axislabels</key>
<value>True</value>
</param>
<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>0</value>
</param>
<param>
<key>_coordinate</key>
<value>(1080, 1820)</value>
</param>
<param>
<key>gui_hint</key>
<value></value>
</param>
<param>
<key>_rotation</key>
<value>0</value>
</param>
<param>
<key>grid</key>
<value>False</value>
</param>
<param>
<key>id</key>
<value>qtgui_const_sink_x_0</value>
</param>
<param>
<key>legend</key>
<value>True</value>
</param>
<param>
<key>alpha1</key>
<value>1.0</value>
</param>
<param>
<key>color1</key>
<value>"blue"</value>
</param>
<param>
<key>label1</key>
<value></value>
</param>
<param>
<key>marker1</key>
<value>0</value>
</param>
<param>
<key>style1</key>
<value>0</value>
</param>
<param>
<key>width1</key>
<value>1</value>
</param>
<param>
<key>alpha10</key>
<value>1.0</value>
</param>
<param>
<key>color10</key>
<value>"red"</value>
</param>
<param>
<key>label10</key>
<value></value>
</param>
<param>
<key>marker10</key>
<value>0</value>
</param>
<param>
<key>style10</key>
<value>0</value>
</param>
<param>
<key>width10</key>
<value>1</value>
</param>
<param>
<key>alpha2</key>
<value>1.0</value>
</param>
<param>
<key>color2</key>
<value>"red"</value>
</param>
<param>
<key>label2</key>
<value></value>
</param>
<param>
<key>marker2</key>
<value>0</value>
</param>
<param>
<key>style2</key>
<value>0</value>
</param>
<param>
<key>width2</key>
<value>1</value>
</param>
<param>
<key>alpha3</key>
<value>1.0</value>
</param>
<param>
<key>color3</key>
<value>"red"</value>
</param>
<param>
<key>label3</key>
<value></value>
</param>
<param>
<key>marker3</key>
<value>0</value>
</param>
<param>
<key>style3</key>
<value>0</value>
</param>
<param>
<key>width3</key>
<value>1</value>
</param>
<param>
<key>alpha4</key>
<value>1.0</value>
</param>
<param>
<key>color4</key>
<value>"red"</value>
</param>
<param>
<key>label4</key>
<value></value>
</param>
<param>
<key>marker4</key>
<value>0</value>
</param>
<param>
<key>style4</key>
<value>0</value>
</param>
<param>
<key>width4</key>
<value>1</value>
</param>
<param>
<key>alpha5</key>
<value>1.0</value>
</param>
<param>
<key>color5</key>
<value>"red"</value>
</param>
<param>
<key>label5</key>
<value></value>
</param>
<param>
<key>marker5</key>
<value>0</value>
</param>
<param>
<key>style5</key>
<value>0</value>
</param>
<param>
<key>width5</key>
<value>1</value>
</param>
<param>
<key>alpha6</key>
<value>1.0</value>
</param>
<param>
<key>color6</key>
<value>"red"</value>
</param>
<param>
<key>label6</key>
<value></value>
</param>
<param>
<key>marker6</key>
<value>0</value>
</param>
<param>
<key>style6</key>
<value>0</value>
</param>
<param>
<key>width6</key>
<value>1</value>
</param>
<param>
<key>alpha7</key>
<value>1.0</value>
</param>
<param>
<key>color7</key>
<value>"red"</value>
</param>
<param>
<key>label7</key>
<value></value>
</param>
<param>
<key>marker7</key>
<value>0</value>
</param>
<param>
<key>style7</key>
<value>0</value>
</param>
<param>
<key>width7</key>
<value>1</value>
</param>
<param>
<key>alpha8</key>
<value>1.0</value>
</param>
<param>
<key>color8</key>
<value>"red"</value>
</param>
<param>
<key>label8</key>
<value></value>
</param>
<param>
<key>marker8</key>
<value>0</value>
</param>
<param>
<key>style8</key>
<value>0</value>
</param>
<param>
<key>width8</key>
<value>1</value>
</param>
<param>
<key>alpha9</key>
<value>1.0</value>
</param>
<param>
<key>color9</key>
<value>"red"</value>
</param>
<param>
<key>label9</key>
<value></value>
</param>
<param>
<key>marker9</key>
<value>0</value>
</param>
<param>
<key>style9</key>
<value>0</value>
</param>
<param>
<key>width9</key>
<value>1</value>
</param>
<param>
<key>name</key>
<value>""</value>
</param>
<param>
<key>nconnections</key>
<value>1</value>
</param>
<param>
<key>size</key>
<value>1024</value>
</param>
<param>
<key>tr_chan</key>
<value>0</value>
</param>
<param>
<key>tr_level</key>
<value>0.0</value>
</param>
<param>
<key>tr_mode</key>
<value>qtgui.TRIG_MODE_FREE</value>
</param>
<param>
<key>tr_slope</key>
<value>qtgui.TRIG_SLOPE_POS</value>
</param>
<param>
<key>tr_tag</key>
<value>""</value>
</param>
<param>
<key>type</key>
<value>complex</value>
</param>
<param>
<key>update_time</key>
<value>0.10</value>
</param>
<param>
<key>xmax</key>
<value>2</value>
</param>
<param>
<key>xmin</key>
<value>-2</value>
</param>
<param>
<key>ymax</key>
<value>2</value>
</param>
<param>
<key>ymin</key>
<value>-2</value>
</param>
</block>
<block>
<key>qtgui_freq_sink_x</key>
<param>
<key>autoscale</key>
<value>False</value>
</param>
<param>
<key>average</key>
<value>1.0</value>
</param>
<param>
<key>axislabels</key>
<value>True</value>
</param>
<param>
<key>bw</key>
<value>samp_rate</value>
</param>
<param>
<key>alias</key>
<value></value>
</param>
<param>
<key>fc</key>
<value>0</value>
</param>
<param>
<key>comment</key>
<value></value>
</param>
<param>
<key>ctrlpanel</key>
<value>False</value>
</param>
<param>
<key>affinity</key>
<value></value>
</param>
<param>
<key>_enabled</key>
<value>0</value>
</param>
<param>
<key>fftsize</key>
<value>1024</value>
</param>
<param>
<key>_coordinate</key>
<value>(1080, 1892)</value>
</param>
<param>
<key>gui_hint</key>
<value></value>
</param>
<param>
<key>_rotation</key>
<value>0</value>
</param>
<param>
<key>grid</key>
<value>False</value>
</param>
<param>
<key>id</key>
<value>qtgui_freq_sink_x_0</value>
</param>
<param>
<key>legend</key>
<value>True</value>
</param>
<param>
<key>alpha1</key>
<value>1.0</value>
</param>
<param>
<key>color1</key>
<value>"blue"</value>
</param>
<param>
<key>label1</key>
<value></value>
</param>
<param>
<key>width1</key>
<value>1</value>
</param>
<param>
<key>alpha10</key>
<value>1.0</value>
</param>
<param>
<key>color10</key>
<value>"dark blue"</value>
</param>
<param>
<key>label10</key>
<value></value>
</param>
<param>
<key>width10</key>
<value>1</value>
</param>
<param>
<key>alpha2</key>
<value>1.0</value>
</param>
<param>
<key>color2</key>
<value>"red"</value>
</param>
<param>
<key>label2</key>
<value></value>
</param>
<param>
<key>width2</key>
<value>1</value>
</param>
<param>
<key>alpha3</key>
<value>1.0</value>
</param>
<param>
<key>color3</key>
<value>"green"</value>
</param>
<param>
<key>label3</key>
<value></value>
</param>
<param>
<key>width3</key>
<value>1</value>
</param>
<param>
<key>alpha4</key>
<value>1.0</value>
</param>
<param>
<key>color4</key>
<value>"black"</value>
</param>
<param>
<key>label4</key>
<value></value>
</param>
<param>
<key>width4</key>
<value>1</value>
</param>
<param>
<key>alpha5</key>
<value>1.0</value>
</param>
<param>
<key>color5</key>
<value>"cyan"</value>
</param>
<param>
<key>label5</key>
<value></value>
</param>
<param>
<key>width5</key>
<value>1</value>
</param>
<param>
<key>alpha6</key>
<value>1.0</value>
</param>
<param>
<key>color6</key>
<value>"magenta"</value>
</param>
<param>
<key>label6</key>
<value></value>
</param>
<param>
<key>width6</key>
<value>1</value>
</param>
<param>
<key>alpha7</key>
<value>1.0</value>
</param>
<param>
<key>color7</key>
<value>"yellow"</value>
</param>
<param>
<key>label7</key>
<value></value>
</param>
<param>
<key>width7</key>
<value>1</value>
</param>
<param>
<key>alpha8</key>
<value>1.0</value>
</param>
<param>
<key>color8</key>
<value>"dark red"</value>
</param>
<param>
<key>label8</key>
<value></value>
</param>
<param>
<key>width8</key>
<value>1</value>
</param>
<param>
<key>alpha9</key>
<value>1.0</value>
</param>
<param>
<key>color9</key>
<value>"dark green"</value>
</param>
<param>
<key>label9</key>
<value></value>
</param>
<param>
<key>width9</key>
<value>1</value>
</param>
<param>
<key>maxoutbuf</key>
<value>0</value>
</param>
<param>
<key>minoutbuf</key>
<value>0</value>
</param>
<param>
<key>name</key>
<value>""</value>
</param>
<param>
<key>nconnections</key>
<value>1</value>
</param>
<param>
<key>showports</key>
<value>True</value>
</param>
<param>
<key>freqhalf</key>
<value>True</value>
</param>
<param>
<key>tr_chan</key>
<value>0</value>
</param>
<param>
<key>tr_level</key>
<value>0.0</value>
</param>
<param>
<key>tr_mode</key>
<value>qtgui.TRIG_MODE_FREE</value>
</param>
<param>
<key>tr_tag</key>
<value>""</value>
</param>
<param>
<key>type</key>
<value>complex</value>
</param>
<param>
<key>update_time</key>
<value>0.10</value>
</param>
<param>
<key>wintype</key>
<value>firdes.WIN_BLACKMAN_hARRIS</value>
</param>
<param>
<key>label</key>
<value>Relative Gain</value>
</param>
<param>
<key>ymax</key>
<value>10</value>
</param>
<param>
<key>ymin</key>
<value>-140</value>
</param>
<param>
<key>units</key>
<value>dB</value>
</param>
</block>
<block>
<key>qtgui_freq_sink_x</key>
<param>
<key>autoscale</key>
<value>False</value>
</param>
<param>
<key>average</key>
<value>1.0</value>
</param>
<param>
<key>axislabels</key>
<value>True</value>
</param>
<param>
<key>bw</key>
<value>samp_rate</value>
</param>
<param>
<key>alias</key>
<value></value>
</param>
<param>
<key>fc</key>
<value>0</value>
</param>
<param>
<key>comment</key>
<value></value>
</param>
<param>
<key>ctrlpanel</key>
<value>False</value>
</param>
<param>
<key>affinity</key>
<value></value>
</param>
<param>
<key>_enabled</key>
<value>1</value>
</param>
<param>
<key>fftsize</key>
<value>1024</value>
</param>
<param>
<key>_coordinate</key>
<value>(1424, 540)</value>
</param>
<param>
<key>gui_hint</key>
<value></value>
</param>
<param>
<key>_rotation</key>
<value>0</value>
</param>
<param>
<key>grid</key>
<value>False</value>
</param>
<param>
<key>id</key>
<value>qtgui_freq_sink_x_0_0</value>
</param>
<param>
<key>legend</key>
<value>True</value>
</param>
<param>
<key>alpha1</key>
<value>1.0</value>
</param>
<param>
<key>color1</key>
<value>"blue"</value>
</param>
<param>
<key>label1</key>
<value></value>
</param>
<param>
<key>width1</key>
<value>1</value>
</param>
<param>
<key>alpha10</key>
<value>1.0</value>
</param>
<param>
<key>color10</key>
<value>"dark blue"</value>
</param>
<param>
<key>label10</key>
<value></value>
</param>
<param>
<key>width10</key>
<value>1</value>
</param>
<param>
<key>alpha2</key>
<value>1.0</value>
</param>
<param>
<key>color2</key>
<value>"red"</value>
</param>
<param>
<key>label2</key>
<value></value>
</param>
<param>
<key>width2</key>
<value>1</value>
</param>
<param>
<key>alpha3</key>
<value>1.0</value>
</param>
<param>
<key>color3</key>
<value>"green"</value>
</param>
<param>
<key>label3</key>
<value></value>
</param>
<param>
<key>width3</key>
<value>1</value>
</param>
<param>
<key>alpha4</key>
<value>1.0</value>
</param>
<param>
<key>color4</key>
<value>"black"</value>
</param>
<param>
<key>label4</key>
<value></value>
</param>
<param>
<key>width4</key>
<value>1</value>
</param>
<param>
<key>alpha5</key>
<value>1.0</value>
</param>
<param>
<key>color5</key>
<value>"cyan"</value>
</param>
<param>
<key>label5</key>
<value></value>
</param>
<param>
<key>width5</key>
<value>1</value>
</param>
<param>
<key>alpha6</key>
<value>1.0</value>
</param>
<param>
<key>color6</key>
<value>"magenta"</value>
</param>
<param>
<key>label6</key>
<value></value>
</param>
<param>
<key>width6</key>
<value>1</value>
</param>
<param>
<key>alpha7</key>
<value>1.0</value>
</param>
<param>
<key>color7</key>
<value>"yellow"</value>
</param>
<param>
<key>label7</key>
<value></value>
</param>
<param>
<key>width7</key>
<value>1</value>
</param>
<param>
<key>alpha8</key>
<value>1.0</value>
</param>
<param>
<key>color8</key>
<value>"dark red"</value>
</param>
<param>
<key>label8</key>
<value></value>
</param>
<param>
<key>width8</key>
<value>1</value>
</param>
<param>
<key>alpha9</key>
<value>1.0</value>
</param>
<param>
<key>color9</key>
<value>"dark green"</value>
</param>
<param>
<key>label9</key>
<value></value>
</param>
<param>
<key>width9</key>
<value>1</value>
</param>
<param>
<key>maxoutbuf</key>
<value>0</value>
</param>
<param>
<key>minoutbuf</key>
<value>0</value>
</param>
<param>
<key>name</key>
<value>"o0"</value>
</param>
<param>
<key>nconnections</key>
<value>1</value>
</param>
<param>
<key>showports</key>
<value>True</value>
</param>
<param>
<key>freqhalf</key>
<value>True</value>
</param>
<param>
<key>tr_chan</key>
<value>0</value>
</param>
<param>
<key>tr_level</key>
<value>0.0</value>
</param>
<param>
<key>tr_mode</key>
<value>qtgui.TRIG_MODE_FREE</value>
</param>
<param>
<key>tr_tag</key>
<value>""</value>
</param>
<param>
<key>type</key>
<value>complex</value>
</param>
<param>
<key>update_time</key>
<value>0.10</value>
</param>
<param>
<key>wintype</key>
<value>firdes.WIN_BLACKMAN_hARRIS</value>
</param>
<param>
<key>label</key>
<value>Relative Gain</value>
</param>
<param>
<key>ymax</key>
<value>10</value>
</param>
<param>
<key>ymin</key>
<value>-140</value>
</param>
<param>
<key>units</key>
<value>dB</value>
</param>
</block>
<block>
<key>qtgui_freq_sink_x</key>
<param>
<key>autoscale</key>
<value>False</value>
</param>
<param>
<key>average</key>
<value>1.0</value>
</param>
<param>
<key>axislabels</key>
<value>True</value>
</param>
<param>
<key>bw</key>
<value>samp_rate</value>
</param>
<param>
<key>alias</key>
<value></value>
</param>
<param>
<key>fc</key>
<value>0</value>
</param>
<param>
<key>comment</key>
<value></value>
</param>
<param>
<key>ctrlpanel</key>
<value>False</value>
</param>
<param>
<key>affinity</key>
<value></value>
</param>
<param>
<key>_enabled</key>
<value>1</value>
</param>
<param>
<key>fftsize</key>
<value>1024</value>
</param>
<param>
<key>_coordinate</key>
<value>(1424, 628)</value>
</param>
<param>
<key>gui_hint</key>
<value></value>
</param>
<param>
<key>_rotation</key>
<value>0</value>
</param>
<param>
<key>grid</key>
<value>False</value>
</param>
<param>
<key>id</key>
<value>qtgui_freq_sink_x_0_1</value>
</param>
<param>
<key>legend</key>
<value>True</value>
</param>
<param>
<key>alpha1</key>
<value>1.0</value>
</param>
<param>
<key>color1</key>
<value>"blue"</value>
</param>
<param>
<key>label1</key>
<value></value>
</param>
<param>
<key>width1</key>
<value>1</value>
</param>
<param>
<key>alpha10</key>
<value>1.0</value>
</param>
<param>
<key>color10</key>
<value>"dark blue"</value>
</param>
<param>
<key>label10</key>
<value></value>
</param>
<param>
<key>width10</key>
<value>1</value>
</param>
<param>
<key>alpha2</key>
<value>1.0</value>
</param>
<param>
<key>color2</key>
<value>"red"</value>
</param>
<param>
<key>label2</key>
<value></value>
</param>
<param>
<key>width2</key>
<value>1</value>
</param>
<param>
<key>alpha3</key>
<value>1.0</value>
</param>
<param>
<key>color3</key>
<value>"green"</value>
</param>
<param>
<key>label3</key>
<value></value>
</param>
<param>
<key>width3</key>
<value>1</value>
</param>
<param>
<key>alpha4</key>
<value>1.0</value>
</param>
<param>
<key>color4</key>
<value>"black"</value>
</param>
<param>
<key>label4</key>
<value></value>
</param>
<param>
<key>width4</key>
<value>1</value>
</param>
<param>
<key>alpha5</key>
<value>1.0</value>
</param>
<param>
<key>color5</key>
<value>"cyan"</value>
</param>
<param>
<key>label5</key>
<value></value>
</param>
<param>
<key>width5</key>
<value>1</value>
</param>
<param>
<key>alpha6</key>
<value>1.0</value>
</param>
<param>
<key>color6</key>
<value>"magenta"</value>
</param>
<param>
<key>label6</key>
<value></value>
</param>
<param>
<key>width6</key>
<value>1</value>
</param>
<param>
<key>alpha7</key>
<value>1.0</value>
</param>
<param>
<key>color7</key>
<value>"yellow"</value>
</param>
<param>
<key>label7</key>
<value></value>
</param>
<param>
<key>width7</key>
<value>1</value>
</param>
<param>
<key>alpha8</key>
<value>1.0</value>
</param>
<param>
<key>color8</key>
<value>"dark red"</value>
</param>
<param>
<key>label8</key>
<value></value>
</param>
<param>
<key>width8</key>
<value>1</value>
</param>
<param>
<key>alpha9</key>
<value>1.0</value>
</param>
<param>
<key>color9</key>
<value>"dark green"</value>
</param>
<param>
<key>label9</key>
<value></value>
</param>
<param>
<key>width9</key>
<value>1</value>
</param>
<param>
<key>maxoutbuf</key>
<value>0</value>
</param>
<param>
<key>minoutbuf</key>
<value>0</value>
</param>
<param>
<key>name</key>
<value>"o1"</value>
</param>
<param>
<key>nconnections</key>
<value>1</value>
</param>
<param>
<key>showports</key>
<value>True</value>
</param>
<param>
<key>freqhalf</key>
<value>True</value>
</param>
<param>
<key>tr_chan</key>
<value>0</value>
</param>
<param>
<key>tr_level</key>
<value>0.0</value>
</param>
<param>
<key>tr_mode</key>
<value>qtgui.TRIG_MODE_FREE</value>
</param>
<param>
<key>tr_tag</key>
<value>""</value>
</param>
<param>
<key>type</key>
<value>complex</value>
</param>
<param>
<key>update_time</key>
<value>0.10</value>
</param>
<param>
<key>wintype</key>
<value>firdes.WIN_BLACKMAN_hARRIS</value>
</param>
<param>
<key>label</key>
<value>Relative Gain</value>
</param>
<param>
<key>ymax</key>
<value>10</value>
</param>
<param>
<key>ymin</key>
<value>-140</value>
</param>
<param>
<key>units</key>
<value>dB</value>
</param>
</block>
<block>
<key>qtgui_time_sink_x</key>
<param>
<key>autoscale</key>
<value>False</value>
</param>
<param>
<key>axislabels</key>
<value>True</value>
</param>
<param>
<key>alias</key>
<value></value>
</param>
<param>
<key>comment</key>
<value></value>
</param>
<param>
<key>ctrlpanel</key>
<value>False</value>
</param>
<param>
<key>affinity</key>
<value></value>
</param>
<param>
<key>entags</key>
<value>True</value>
</param>
<param>
<key>_enabled</key>
<value>0</value>
</param>
<param>
<key>_coordinate</key>
<value>(1304, 1748)</value>
</param>
<param>
<key>gui_hint</key>
<value></value>
</param>
<param>
<key>_rotation</key>
<value>0</value>
</param>
<param>
<key>grid</key>
<value>False</value>
</param>
<param>
<key>id</key>
<value>qtgui_time_sink_x_0</value>
</param>
<param>
<key>legend</key>
<value>True</value>
</param>
<param>
<key>alpha1</key>
<value>1.0</value>
</param>
<param>
<key>color1</key>
<value>"blue"</value>
</param>
<param>
<key>label1</key>
<value></value>
</param>
<param>
<key>marker1</key>
<value>-1</value>
</param>
<param>
<key>style1</key>
<value>1</value>
</param>
<param>
<key>width1</key>
<value>1</value>
</param>
<param>
<key>alpha10</key>
<value>1.0</value>
</param>
<param>
<key>color10</key>
<value>"blue"</value>
</param>
<param>
<key>label10</key>
<value></value>
</param>
<param>
<key>marker10</key>
<value>-1</value>
</param>
<param>
<key>style10</key>
<value>1</value>
</param>
<param>
<key>width10</key>
<value>1</value>
</param>
<param>
<key>alpha2</key>
<value>1.0</value>
</param>
<param>
<key>color2</key>
<value>"red"</value>
</param>
<param>
<key>label2</key>
<value></value>
</param>
<param>
<key>marker2</key>
<value>-1</value>
</param>
<param>
<key>style2</key>
<value>1</value>
</param>
<param>
<key>width2</key>
<value>1</value>
</param>
<param>
<key>alpha3</key>
<value>1.0</value>
</param>
<param>
<key>color3</key>
<value>"green"</value>
</param>
<param>
<key>label3</key>
<value></value>
</param>
<param>
<key>marker3</key>
<value>-1</value>
</param>
<param>
<key>style3</key>
<value>1</value>
</param>
<param>
<key>width3</key>
<value>1</value>
</param>
<param>
<key>alpha4</key>
<value>1.0</value>
</param>
<param>
<key>color4</key>
<value>"black"</value>
</param>
<param>
<key>label4</key>
<value></value>
</param>
<param>
<key>marker4</key>
<value>-1</value>
</param>
<param>
<key>style4</key>
<value>1</value>
</param>
<param>
<key>width4</key>
<value>1</value>
</param>
<param>
<key>alpha5</key>
<value>1.0</value>
</param>
<param>
<key>color5</key>
<value>"cyan"</value>
</param>
<param>
<key>label5</key>
<value></value>
</param>
<param>
<key>marker5</key>
<value>-1</value>
</param>
<param>
<key>style5</key>
<value>1</value>
</param>
<param>
<key>width5</key>
<value>1</value>
</param>
<param>
<key>alpha6</key>
<value>1.0</value>
</param>
<param>
<key>color6</key>
<value>"magenta"</value>
</param>
<param>
<key>label6</key>
<value></value>
</param>
<param>
<key>marker6</key>
<value>-1</value>
</param>
<param>
<key>style6</key>
<value>1</value>
</param>
<param>
<key>width6</key>
<value>1</value>
</param>
<param>
<key>alpha7</key>
<value>1.0</value>
</param>
<param>
<key>color7</key>
<value>"yellow"</value>
</param>
<param>
<key>label7</key>
<value></value>
</param>
<param>
<key>marker7</key>
<value>-1</value>
</param>
<param>
<key>style7</key>
<value>1</value>
</param>
<param>
<key>width7</key>
<value>1</value>
</param>
<param>
<key>alpha8</key>
<value>1.0</value>
</param>
<param>
<key>color8</key>
<value>"dark red"</value>
</param>
<param>
<key>label8</key>
<value></value>
</param>
<param>
<key>marker8</key>
<value>-1</value>
</param>
<param>
<key>style8</key>
<value>1</value>
</param>
<param>
<key>width8</key>
<value>1</value>
</param>
<param>
<key>alpha9</key>
<value>1.0</value>
</param>
<param>
<key>color9</key>
<value>"dark green"</value>
</param>
<param>
<key>label9</key>
<value></value>
</param>
<param>
<key>marker9</key>
<value>-1</value>
</param>
<param>
<key>style9</key>
<value>1</value>
</param>
<param>
<key>width9</key>
<value>1</value>
</param>
<param>
<key>name</key>
<value>""</value>
</param>
<param>
<key>nconnections</key>
<value>1</value>
</param>
<param>
<key>size</key>
<value>1024</value>
</param>
<param>
<key>srate</key>
<value>samp_rate</value>
</param>
<param>
<key>stemplot</key>
<value>False</value>
</param>
<param>
<key>tr_chan</key>
<value>0</value>
</param>
<param>
<key>tr_delay</key>
<value>0</value>
</param>
<param>
<key>tr_level</key>
<value>0.0</value>
</param>
<param>
<key>tr_mode</key>
<value>qtgui.TRIG_MODE_FREE</value>
</param>
<param>
<key>tr_slope</key>
<value>qtgui.TRIG_SLOPE_POS</value>
</param>
<param>
<key>tr_tag</key>
<value>""</value>
</param>
<param>
<key>type</key>
<value>complex</value>
</param>
<param>
<key>update_time</key>
<value>0.10</value>
</param>
<param>
<key>ylabel</key>
<value>Amplitude</value>
</param>
<param>
<key>yunit</key>
<value>""</value>
</param>
<param>
<key>ymax</key>
<value>1</value>
</param>
<param>
<key>ymin</key>
<value>-1</value>
</param>
</block>
<block>
<key>uhd_usrp_source</key>
<param>
<key>alias</key>
<value></value>
</param>
<param>
<key>ant0</key>
<value>RX2</value>
</param>
<param>
<key>bw0</key>
<value>0</value>
</param>
<param>
<key>center_freq0</key>
<value>center_freq</value>
</param>
<param>
<key>dc_offs_enb0</key>
<value>""</value>
</param>
<param>
<key>iq_imbal_enb0</key>
<value>""</value>
</param>
<param>
<key>norm_gain0</key>
<value>False</value>
</param>
<param>
<key>gain0</key>
<value>rx_gain</value>
</param>
<param>
<key>lo_export0</key>
<value>False</value>
</param>
<param>
<key>lo_source0</key>
<value>internal</value>
</param>
<param>
<key>ant10</key>
<value></value>
</param>
<param>
<key>bw10</key>
<value>0</value>
</param>
<param>
<key>center_freq10</key>
<value>0</value>
</param>
<param>
<key>dc_offs_enb10</key>
<value>""</value>
</param>
<param>
<key>iq_imbal_enb10</key>
<value>""</value>
</param>
<param>
<key>norm_gain10</key>
<value>False</value>
</param>
<param>
<key>gain10</key>
<value>0</value>
</param>
<param>
<key>lo_export10</key>
<value>False</value>
</param>
<param>
<key>lo_source10</key>
<value>internal</value>
</param>
<param>
<key>ant11</key>
<value></value>
</param>
<param>
<key>bw11</key>
<value>0</value>
</param>
<param>
<key>center_freq11</key>
<value>0</value>
</param>
<param>
<key>dc_offs_enb11</key>
<value>""</value>
</param>
<param>
<key>iq_imbal_enb11</key>
<value>""</value>
</param>
<param>
<key>norm_gain11</key>
<value>False</value>
</param>
<param>
<key>gain11</key>
<value>0</value>
</param>
<param>
<key>lo_export11</key>
<value>False</value>
</param>
<param>
<key>lo_source11</key>
<value>internal</value>
</param>
<param>
<key>ant12</key>
<value></value>
</param>
<param>
<key>bw12</key>
<value>0</value>
</param>
<param>
<key>center_freq12</key>
<value>0</value>
</param>
<param>
<key>dc_offs_enb12</key>
<value>""</value>
</param>
<param>
<key>iq_imbal_enb12</key>
<value>""</value>
</param>
<param>
<key>norm_gain12</key>
<value>False</value>
</param>
<param>
<key>gain12</key>
<value>0</value>
</param>
<param>
<key>lo_export12</key>
<value>False</value>
</param>
<param>
<key>lo_source12</key>
<value>internal</value>
</param>
<param>
<key>ant13</key>
<value></value>
</param>
<param>
<key>bw13</key>
<value>0</value>
</param>
<param>
<key>center_freq13</key>
<value>0</value>
</param>
<param>
<key>dc_offs_enb13</key>
<value>""</value>
</param>
<param>
<key>iq_imbal_enb13</key>
<value>""</value>
</param>
<param>
<key>norm_gain13</key>
<value>False</value>
</param>
<param>
<key>gain13</key>
<value>0</value>
</param>
<param>
<key>lo_export13</key>
<value>False</value>
</param>
<param>
<key>lo_source13</key>
<value>internal</value>
</param>
<param>
<key>ant14</key>
<value></value>
</param>
<param>
<key>bw14</key>
<value>0</value>
</param>
<param>
<key>center_freq14</key>
<value>0</value>
</param>
<param>
<key>dc_offs_enb14</key>
<value>""</value>
</param>
<param>
<key>iq_imbal_enb14</key>
<value>""</value>
</param>
<param>
<key>norm_gain14</key>
<value>False</value>
</param>
<param>
<key>gain14</key>
<value>0</value>
</param>
<param>
<key>lo_export14</key>
<value>False</value>
</param>
<param>
<key>lo_source14</key>
<value>internal</value>
</param>
<param>
<key>ant15</key>
<value></value>
</param>
<param>
<key>bw15</key>
<value>0</value>
</param>
<param>
<key>center_freq15</key>
<value>0</value>
</param>
<param>
<key>dc_offs_enb15</key>
<value>""</value>
</param>
<param>
<key>iq_imbal_enb15</key>
<value>""</value>
</param>
<param>
<key>norm_gain15</key>
<value>False</value>
</param>
<param>
<key>gain15</key>
<value>0</value>
</param>
<param>
<key>lo_export15</key>
<value>False</value>
</param>
<param>
<key>lo_source15</key>
<value>internal</value>
</param>
<param>
<key>ant16</key>
<value></value>
</param>
<param>
<key>bw16</key>
<value>0</value>
</param>
<param>
<key>center_freq16</key>
<value>0</value>
</param>
<param>
<key>dc_offs_enb16</key>
<value>""</value>
</param>
<param>
<key>iq_imbal_enb16</key>
<value>""</value>
</param>
<param>
<key>norm_gain16</key>
<value>False</value>
</param>
<param>
<key>gain16</key>
<value>0</value>
</param>
<param>
<key>lo_export16</key>
<value>False</value>
</param>
<param>
<key>lo_source16</key>
<value>internal</value>
</param>
<param>
<key>ant17</key>
<value></value>
</param>
<param>
<key>bw17</key>
<value>0</value>
</param>
<param>
<key>center_freq17</key>
<value>0</value>
</param>
<param>
<key>dc_offs_enb17</key>
<value>""</value>
</param>
<param>
<key>iq_imbal_enb17</key>
<value>""</value>
</param>
<param>
<key>norm_gain17</key>
<value>False</value>
</param>
<param>
<key>gain17</key>
<value>0</value>
</param>
<param>
<key>lo_export17</key>
<value>False</value>
</param>
<param>
<key>lo_source17</key>
<value>internal</value>
</param>
<param>
<key>ant18</key>
<value></value>
</param>
<param>
<key>bw18</key>
<value>0</value>
</param>
<param>
<key>center_freq18</key>
<value>0</value>
</param>
<param>
<key>dc_offs_enb18</key>
<value>""</value>
</param>
<param>
<key>iq_imbal_enb18</key>
<value>""</value>
</param>
<param>
<key>norm_gain18</key>
<value>False</value>
</param>
<param>
<key>gain18</key>
<value>0</value>
</param>
<param>
<key>lo_export18</key>
<value>False</value>
</param>
<param>
<key>lo_source18</key>
<value>internal</value>
</param>
<param>
<key>ant19</key>
<value></value>
</param>
<param>
<key>bw19</key>
<value>0</value>
</param>
<param>
<key>center_freq19</key>
<value>0</value>
</param>
<param>
<key>dc_offs_enb19</key>
<value>""</value>
</param>
<param>
<key>iq_imbal_enb19</key>
<value>""</value>
</param>
<param>
<key>norm_gain19</key>
<value>False</value>
</param>
<param>
<key>gain19</key>
<value>0</value>
</param>
<param>
<key>lo_export19</key>
<value>False</value>
</param>
<param>
<key>lo_source19</key>
<value>internal</value>
</param>
<param>
<key>ant1</key>
<value></value>
</param>
<param>
<key>bw1</key>
<value>0</value>
</param>
<param>
<key>center_freq1</key>
<value>0</value>
</param>
<param>
<key>dc_offs_enb1</key>
<value>""</value>
</param>
<param>
<key>iq_imbal_enb1</key>
<value>""</value>
</param>
<param>
<key>norm_gain1</key>
<value>False</value>
</param>
<param>
<key>gain1</key>
<value>0</value>
</param>
<param>
<key>lo_export1</key>
<value>False</value>
</param>
<param>
<key>lo_source1</key>
<value>internal</value>
</param>
<param>
<key>ant20</key>
<value></value>
</param>
<param>
<key>bw20</key>
<value>0</value>
</param>
<param>
<key>center_freq20</key>
<value>0</value>
</param>
<param>
<key>dc_offs_enb20</key>
<value>""</value>
</param>
<param>
<key>iq_imbal_enb20</key>
<value>""</value>
</param>
<param>
<key>norm_gain20</key>
<value>False</value>
</param>
<param>
<key>gain20</key>
<value>0</value>
</param>
<param>
<key>lo_export20</key>
<value>False</value>
</param>
<param>
<key>lo_source20</key>
<value>internal</value>
</param>
<param>
<key>ant21</key>
<value></value>
</param>
<param>
<key>bw21</key>
<value>0</value>
</param>
<param>
<key>center_freq21</key>
<value>0</value>
</param>
<param>
<key>dc_offs_enb21</key>
<value>""</value>
</param>
<param>
<key>iq_imbal_enb21</key>
<value>""</value>
</param>
<param>
<key>norm_gain21</key>
<value>False</value>
</param>
<param>
<key>gain21</key>
<value>0</value>
</param>
<param>
<key>lo_export21</key>
<value>False</value>
</param>
<param>
<key>lo_source21</key>
<value>internal</value>
</param>
<param>
<key>ant22</key>
<value></value>
</param>
<param>
<key>bw22</key>
<value>0</value>
</param>
<param>
<key>center_freq22</key>
<value>0</value>
</param>
<param>
<key>dc_offs_enb22</key>
<value>""</value>
</param>
<param>
<key>iq_imbal_enb22</key>
<value>""</value>
</param>
<param>
<key>norm_gain22</key>
<value>False</value>
</param>
<param>
<key>gain22</key>
<value>0</value>
</param>
<param>
<key>lo_export22</key>
<value>False</value>
</param>
<param>
<key>lo_source22</key>
<value>internal</value>
</param>
<param>
<key>ant23</key>
<value></value>
</param>
<param>
<key>bw23</key>
<value>0</value>
</param>
<param>
<key>center_freq23</key>
<value>0</value>
</param>
<param>
<key>dc_offs_enb23</key>
<value>""</value>
</param>
<param>
<key>iq_imbal_enb23</key>
<value>""</value>
</param>
<param>
<key>norm_gain23</key>
<value>False</value>
</param>
<param>
<key>gain23</key>
<value>0</value>
</param>
<param>
<key>lo_export23</key>
<value>False</value>
</param>
<param>
<key>lo_source23</key>
<value>internal</value>
</param>
<param>
<key>ant24</key>
<value></value>
</param>
<param>
<key>bw24</key>
<value>0</value>
</param>
<param>
<key>center_freq24</key>
<value>0</value>
</param>
<param>
<key>dc_offs_enb24</key>
<value>""</value>
</param>
<param>
<key>iq_imbal_enb24</key>
<value>""</value>
</param>
<param>
<key>norm_gain24</key>
<value>False</value>
</param>
<param>
<key>gain24</key>
<value>0</value>
</param>
<param>
<key>lo_export24</key>
<value>False</value>
</param>
<param>
<key>lo_source24</key>
<value>internal</value>
</param>
<param>
<key>ant25</key>
<value></value>
</param>
<param>
<key>bw25</key>
<value>0</value>
</param>
<param>
<key>center_freq25</key>
<value>0</value>
</param>
<param>
<key>dc_offs_enb25</key>
<value>""</value>
</param>
<param>
<key>iq_imbal_enb25</key>
<value>""</value>
</param>
<param>
<key>norm_gain25</key>
<value>False</value>
</param>
<param>
<key>gain25</key>
<value>0</value>
</param>
<param>
<key>lo_export25</key>
<value>False</value>
</param>
<param>
<key>lo_source25</key>
<value>internal</value>
</param>
<param>
<key>ant26</key>
<value></value>
</param>
<param>
<key>bw26</key>
<value>0</value>
</param>
<param>
<key>center_freq26</key>
<value>0</value>
</param>
<param>
<key>dc_offs_enb26</key>
<value>""</value>
</param>
<param>
<key>iq_imbal_enb26</key>
<value>""</value>
</param>
<param>
<key>norm_gain26</key>
<value>False</value>
</param>
<param>
<key>gain26</key>
<value>0</value>
</param>
<param>
<key>lo_export26</key>
<value>False</value>
</param>
<param>
<key>lo_source26</key>
<value>internal</value>
</param>
<param>
<key>ant27</key>
<value></value>
</param>
<param>
<key>bw27</key>
<value>0</value>
</param>
<param>
<key>center_freq27</key>
<value>0</value>
</param>
<param>
<key>dc_offs_enb27</key>
<value>""</value>
</param>
<param>
<key>iq_imbal_enb27</key>
<value>""</value>
</param>
<param>
<key>norm_gain27</key>
<value>False</value>
</param>
<param>
<key>gain27</key>
<value>0</value>
</param>
<param>
<key>lo_export27</key>
<value>False</value>
</param>
<param>
<key>lo_source27</key>
<value>internal</value>
</param>
<param>
<key>ant28</key>
<value></value>
</param>
<param>
<key>bw28</key>
<value>0</value>
</param>
<param>
<key>center_freq28</key>
<value>0</value>
</param>
<param>
<key>dc_offs_enb28</key>
<value>""</value>
</param>
<param>
<key>iq_imbal_enb28</key>
<value>""</value>
</param>
<param>
<key>norm_gain28</key>
<value>False</value>
</param>
<param>
<key>gain28</key>
<value>0</value>
</param>
<param>
<key>lo_export28</key>
<value>False</value>
</param>
<param>
<key>lo_source28</key>
<value>internal</value>
</param>
<param>
<key>ant29</key>
<value></value>
</param>
<param>
<key>bw29</key>
<value>0</value>
</param>
<param>
<key>center_freq29</key>
<value>0</value>
</param>
<param>
<key>dc_offs_enb29</key>
<value>""</value>
</param>
<param>
<key>iq_imbal_enb29</key>
<value>""</value>
</param>
<param>
<key>norm_gain29</key>
<value>False</value>
</param>
<param>
<key>gain29</key>
<value>0</value>
</param>
<param>
<key>lo_export29</key>
<value>False</value>
</param>
<param>
<key>lo_source29</key>
<value>internal</value>
</param>
<param>
<key>ant2</key>
<value></value>
</param>
<param>
<key>bw2</key>
<value>0</value>
</param>
<param>
<key>center_freq2</key>
<value>0</value>
</param>
<param>
<key>dc_offs_enb2</key>
<value>""</value>
</param>
<param>
<key>iq_imbal_enb2</key>
<value>""</value>
</param>
<param>
<key>norm_gain2</key>
<value>False</value>
</param>
<param>
<key>gain2</key>
<value>0</value>
</param>
<param>
<key>lo_export2</key>
<value>False</value>
</param>
<param>
<key>lo_source2</key>
<value>internal</value>
</param>
<param>
<key>ant30</key>
<value></value>
</param>
<param>
<key>bw30</key>
<value>0</value>
</param>
<param>
<key>center_freq30</key>
<value>0</value>
</param>
<param>
<key>dc_offs_enb30</key>
<value>""</value>
</param>
<param>
<key>iq_imbal_enb30</key>
<value>""</value>
</param>
<param>
<key>norm_gain30</key>
<value>False</value>
</param>
<param>
<key>gain30</key>
<value>0</value>
</param>
<param>
<key>lo_export30</key>
<value>False</value>
</param>
<param>
<key>lo_source30</key>
<value>internal</value>
</param>
<param>
<key>ant31</key>
<value></value>
</param>
<param>
<key>bw31</key>
<value>0</value>
</param>
<param>
<key>center_freq31</key>
<value>0</value>
</param>
<param>
<key>dc_offs_enb31</key>
<value>""</value>
</param>
<param>
<key>iq_imbal_enb31</key>
<value>""</value>
</param>
<param>
<key>norm_gain31</key>
<value>False</value>
</param>
<param>
<key>gain31</key>
<value>0</value>
</param>
<param>
<key>lo_export31</key>
<value>False</value>
</param>
<param>
<key>lo_source31</key>
<value>internal</value>
</param>
<param>
<key>ant3</key>
<value></value>
</param>
<param>
<key>bw3</key>
<value>0</value>
</param>
<param>
<key>center_freq3</key>
<value>0</value>
</param>
<param>
<key>dc_offs_enb3</key>
<value>""</value>
</param>
<param>
<key>iq_imbal_enb3</key>
<value>""</value>
</param>
<param>
<key>norm_gain3</key>
<value>False</value>
</param>
<param>
<key>gain3</key>
<value>0</value>
</param>
<param>
<key>lo_export3</key>
<value>False</value>
</param>
<param>
<key>lo_source3</key>
<value>internal</value>
</param>
<param>
<key>ant4</key>
<value></value>
</param>
<param>
<key>bw4</key>
<value>0</value>
</param>
<param>
<key>center_freq4</key>
<value>0</value>
</param>
<param>
<key>dc_offs_enb4</key>
<value>""</value>
</param>
<param>
<key>iq_imbal_enb4</key>
<value>""</value>
</param>
<param>
<key>norm_gain4</key>
<value>False</value>
</param>
<param>
<key>gain4</key>
<value>0</value>
</param>
<param>
<key>lo_export4</key>
<value>False</value>
</param>
<param>
<key>lo_source4</key>
<value>internal</value>
</param>
<param>
<key>ant5</key>
<value></value>
</param>
<param>
<key>bw5</key>
<value>0</value>
</param>
<param>
<key>center_freq5</key>
<value>0</value>
</param>
<param>
<key>dc_offs_enb5</key>
<value>""</value>
</param>
<param>
<key>iq_imbal_enb5</key>
<value>""</value>
</param>
<param>
<key>norm_gain5</key>
<value>False</value>
</param>
<param>
<key>gain5</key>
<value>0</value>
</param>
<param>
<key>lo_export5</key>
<value>False</value>
</param>
<param>
<key>lo_source5</key>
<value>internal</value>
</param>
<param>
<key>ant6</key>
<value></value>
</param>
<param>
<key>bw6</key>
<value>0</value>
</param>
<param>
<key>center_freq6</key>
<value>0</value>
</param>
<param>
<key>dc_offs_enb6</key>
<value>""</value>
</param>
<param>
<key>iq_imbal_enb6</key>
<value>""</value>
</param>
<param>
<key>norm_gain6</key>
<value>False</value>
</param>
<param>
<key>gain6</key>
<value>0</value>
</param>
<param>
<key>lo_export6</key>
<value>False</value>
</param>
<param>
<key>lo_source6</key>
<value>internal</value>
</param>
<param>
<key>ant7</key>
<value></value>
</param>
<param>
<key>bw7</key>
<value>0</value>
</param>
<param>
<key>center_freq7</key>
<value>0</value>
</param>
<param>
<key>dc_offs_enb7</key>
<value>""</value>
</param>
<param>
<key>iq_imbal_enb7</key>
<value>""</value>
</param>
<param>
<key>norm_gain7</key>
<value>False</value>
</param>
<param>
<key>gain7</key>
<value>0</value>
</param>
<param>
<key>lo_export7</key>
<value>False</value>
</param>
<param>
<key>lo_source7</key>
<value>internal</value>
</param>
<param>
<key>ant8</key>
<value></value>
</param>
<param>
<key>bw8</key>
<value>0</value>
</param>
<param>
<key>center_freq8</key>
<value>0</value>
</param>
<param>
<key>dc_offs_enb8</key>
<value>""</value>
</param>
<param>
<key>iq_imbal_enb8</key>
<value>""</value>
</param>
<param>
<key>norm_gain8</key>
<value>False</value>
</param>
<param>
<key>gain8</key>
<value>0</value>
</param>
<param>
<key>lo_export8</key>
<value>False</value>
</param>
<param>
<key>lo_source8</key>
<value>internal</value>
</param>
<param>
<key>ant9</key>
<value></value>
</param>
<param>
<key>bw9</key>
<value>0</value>
</param>
<param>
<key>center_freq9</key>
<value>0</value>
</param>
<param>
<key>dc_offs_enb9</key>
<value>""</value>
</param>
<param>
<key>iq_imbal_enb9</key>
<value>""</value>
</param>
<param>
<key>norm_gain9</key>
<value>False</value>
</param>
<param>
<key>gain9</key>
<value>0</value>
</param>
<param>
<key>lo_export9</key>
<value>False</value>
</param>
<param>
<key>lo_source9</key>
<value>internal</value>
</param>
<param>
<key>clock_rate</key>
<value>0.0</value>
</param>
<param>
<key>comment</key>
<value></value>
</param>
<param>
<key>affinity</key>
<value></value>
</param>
<param>
<key>dev_addr</key>
<value>""</value>
</param>
<param>
<key>dev_args</key>
<value>"addr=192.168.10.2"</value>
</param>
<param>
<key>_enabled</key>
<value>1</value>
</param>
<param>
<key>_coordinate</key>
<value>(768, 572)</value>
</param>
<param>
<key>_rotation</key>
<value>0</value>
</param>
<param>
<key>id</key>
<value>uhd_usrp_source_0</value>
</param>
<param>
<key>maxoutbuf</key>
<value>0</value>
</param>
<param>
<key>clock_source0</key>
<value></value>
</param>
<param>
<key>sd_spec0</key>
<value></value>
</param>
<param>
<key>time_source0</key>
<value></value>
</param>
<param>
<key>clock_source1</key>
<value></value>
</param>
<param>
<key>sd_spec1</key>
<value></value>
</param>
<param>
<key>time_source1</key>
<value></value>
</param>
<param>
<key>clock_source2</key>
<value></value>
</param>
<param>
<key>sd_spec2</key>
<value></value>
</param>
<param>
<key>time_source2</key>
<value></value>
</param>
<param>
<key>clock_source3</key>
<value></value>
</param>
<param>
<key>sd_spec3</key>
<value></value>
</param>
<param>
<key>time_source3</key>
<value></value>
</param>
<param>
<key>clock_source4</key>
<value></value>
</param>
<param>
<key>sd_spec4</key>
<value></value>
</param>
<param>
<key>time_source4</key>
<value></value>
</param>
<param>
<key>clock_source5</key>
<value></value>
</param>
<param>
<key>sd_spec5</key>
<value></value>
</param>
<param>
<key>time_source5</key>
<value></value>
</param>
<param>
<key>clock_source6</key>
<value></value>
</param>
<param>
<key>sd_spec6</key>
<value></value>
</param>
<param>
<key>time_source6</key>
<value></value>
</param>
<param>
<key>clock_source7</key>
<value></value>
</param>
<param>
<key>sd_spec7</key>
<value></value>
</param>
<param>
<key>time_source7</key>
<value></value>
</param>
<param>
<key>minoutbuf</key>
<value>0</value>
</param>
<param>
<key>nchan</key>
<value>1</value>
</param>
<param>
<key>num_mboards</key>
<value>1</value>
</param>
<param>
<key>type</key>
<value>fc32</value>
</param>
<param>
<key>samp_rate</key>
<value>samp_rate</value>
</param>
<param>
<key>hide_cmd_port</key>
<value>False</value>
</param>
<param>
<key>hide_lo_controls</key>
<value>True</value>
</param>
<param>
<key>stream_args</key>
<value></value>
</param>
<param>
<key>stream_chans</key>
<value>[]</value>
</param>
<param>
<key>sync</key>
<value></value>
</param>
<param>
<key>otw</key>
<value></value>
</param>
</block>
<block>
<key>wxgui_scopesink2</key>
<param>
<key>ac_couple</key>
<value>False</value>
</param>
<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>0</value>
</param>
<param>
<key>_coordinate</key>
<value>(760, 1564)</value>
</param>
<param>
<key>_rotation</key>
<value>0</value>
</param>
<param>
<key>grid_pos</key>
<value></value>
</param>
<param>
<key>id</key>
<value>wxgui_scopesink2_0</value>
</param>
<param>
<key>notebook</key>
<value></value>
</param>
<param>
<key>num_inputs</key>
<value>1</value>
</param>
<param>
<key>samp_rate</key>
<value>samp_rate</value>
</param>
<param>
<key>t_scale</key>
<value>0</value>
</param>
<param>
<key>title</key>
<value>Scope Plot</value>
</param>
<param>
<key>trig_mode</key>
<value>wxgui.TRIG_MODE_AUTO</value>
</param>
<param>
<key>type</key>
<value>complex</value>
</param>
<param>
<key>v_offset</key>
<value>0</value>
</param>
<param>
<key>v_scale</key>
<value>0</value>
</param>
<param>
<key>win_size</key>
<value></value>
</param>
<param>
<key>xy_mode</key>
<value>False</value>
</param>
<param>
<key>y_axis_label</key>
<value>Counts</value>
</param>
</block>
<connection>
<source_block_id>blocks_tagged_stream_to_pdu_0</source_block_id>
<sink_block_id>blocks_message_debug_0</sink_block_id>
<source_key>pdus</source_key>
<sink_key>print_pdu</sink_key>
</connection>
<connection>
<source_block_id>blocks_tagged_stream_to_pdu_0</source_block_id>
<sink_block_id>blocks_tuntap_pdu_0</sink_block_id>
<source_key>pdus</source_key>
<sink_key>pdus</sink_key>
</connection>
<connection>
<source_block_id>blocks_tuntap_pdu_0</source_block_id>
<sink_block_id>blocks_message_debug_0_0</sink_block_id>
<source_key>pdus</source_key>
<sink_key>print_pdu</sink_key>
</connection>
<connection>
<source_block_id>blocks_tuntap_pdu_0</source_block_id>
<sink_block_id>blocks_pdu_to_tagged_stream_0</sink_block_id>
<source_key>pdus</source_key>
<sink_key>pdus</sink_key>
</connection>
<connection>
<source_block_id>digital_ofdm_rx_0</source_block_id>
<sink_block_id>blocks_file_sink_0</sink_block_id>
<source_key>0</source_key>
<sink_key>0</sink_key>
</connection>
<connection>
<source_block_id>digital_ofdm_rx_0</source_block_id>
<sink_block_id>blocks_tag_debug_0</sink_block_id>
<source_key>0</source_key>
<sink_key>0</sink_key>
</connection>
<connection>
<source_block_id>digital_ofdm_rx_0_0</source_block_id>
<sink_block_id>blocks_file_sink_0_0</sink_block_id>
<source_key>0</source_key>
<sink_key>0</sink_key>
</connection>
<connection>
<source_block_id>digital_ofdm_rx_0_0</source_block_id>
<sink_block_id>blocks_tag_debug_0_0</sink_block_id>
<source_key>0</source_key>
<sink_key>0</sink_key>
</connection>
<connection>
<source_block_id>pfb_channelizer_ccf_0</source_block_id>
<sink_block_id>digital_ofdm_rx_0</sink_block_id>
<source_key>0</source_key>
<sink_key>0</sink_key>
</connection>
<connection>
<source_block_id>pfb_channelizer_ccf_0</source_block_id>
<sink_block_id>qtgui_freq_sink_x_0_0</sink_block_id>
<source_key>0</source_key>
<sink_key>0</sink_key>
</connection>
<connection>
<source_block_id>pfb_channelizer_ccf_0</source_block_id>
<sink_block_id>digital_ofdm_rx_0_0</sink_block_id>
<source_key>1</source_key>
<sink_key>0</sink_key>
</connection>
<connection>
<source_block_id>pfb_channelizer_ccf_0</source_block_id>
<sink_block_id>qtgui_freq_sink_x_0_1</sink_block_id>
<source_key>1</source_key>
<sink_key>0</sink_key>
</connection>
<connection>
<source_block_id>uhd_usrp_source_0</source_block_id>
<sink_block_id>pfb_channelizer_ccf_0</sink_block_id>
<source_key>0</source_key>
<sink_key>0</sink_key>
</connection>
<connection>
<source_block_id>uhd_usrp_source_0</source_block_id>
<sink_block_id>wxgui_scopesink2_0</sink_block_id>
<source_key>0</source_key>
<sink_key>0</sink_key>
</connection>
</flow_graph>
<?xml version='1.0' encoding='utf-8'?>
<?grc format='1' created='3.7.13'?>
<flow_graph>
<timestamp>Thu Jan 17 14:32:20 2019</timestamp>
<block>
<key>options</key>
<param>
<key>author</key>
<value></value>
</param>
<param>
<key>window_size</key>
<value>2000,2000</value>
</param>
<param>
<key>category</key>
<value>[GRC Hier Blocks]</value>
</param>
<param>
<key>comment</key>
<value></value>
</param>
<param>
<key>description</key>
<value></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>qt_gui</value>
</param>
<param>
<key>hier_block_src_path</key>
<value>.:</value>
</param>
<param>
<key>id</key>
<value>ofdm_rx_tx_hier_blocks_3</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>prompt</value>
</param>
<param>
<key>run</key>
<value>True</value>
</param>
<param>
<key>sizing_mode</key>
<value>fixed</value>
</param>
<param>
<key>thread_safe_setters</key>
<value></value>
</param>
<param>
<key>title</key>
<value></value>
</param>
<param>
<key>placement</key>
<value>(0,0)</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>(248, 332)</value>
</param>
<param>
<key>_rotation</key>
<value>0</value>
</param>
<param>
<key>id</key>
<value>atten</value>
</param>
<param>
<key>value</key>
<value>100</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>(16, 156)</value>
</param>
<param>
<key>_rotation</key>
<value>0</value>
</param>
<param>
<key>id</key>
<value>center_freq</value>
</param>
<param>
<key>value</key>
<value>920e6</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>(64, 332)</value>
</param>
<param>
<key>_rotation</key>
<value>0</value>
</param>
<param>
<key>id</key>
<value>ch_bw</value>
</param>
<param>
<key>value</key>
<value>160e3</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>(144, 332)</value>
</param>
<param>
<key>_rotation</key>
<value>0</value>
</param>
<param>
<key>id</key>
<value>ch_tb</value>
</param>
<param>
<key>value</key>
<value>10e3</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>(744, 332)</value>
</param>
<param>
<key>_rotation</key>
<value>0</value>
</param>
<param>
<key>id</key>
<value>chan_atten</value>
</param>
<param>
<key>value</key>
<value>100</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>(560, 332)</value>
</param>
<param>
<key>_rotation</key>
<value>0</value>
</param>
<param>
<key>id</key>
<value>chan_ch_bw</value>
</param>
<param>
<key>value</key>
<value>360e3</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>(656, 332)</value>
</param>
<param>
<key>_rotation</key>
<value>0</value>
</param>
<param>
<key>id</key>
<value>chan_ch_tb</value>
</param>
<param>
<key>value</key>
<value>10e3</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>(560, 388)</value>
</param>
<param>
<key>_rotation</key>
<value>0</value>
</param>
<param>
<key>id</key>
<value>chan_channels</value>
</param>
<param>
<key>value</key>
<value>2</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>(832, 332)</value>
</param>
<param>
<key>_rotation</key>
<value>0</value>
</param>
<param>
<key>id</key>
<value>chan_ftaps</value>
</param>
<param>
<key>value</key>
<value>firdes.low_pass_2(1, samp_rate, ch_bw, ch_tb, atten, firdes.WIN_HANN)</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>(64, 388)</value>
</param>
<param>
<key>_rotation</key>
<value>0</value>
</param>
<param>
<key>id</key>
<value>channels</value>
</param>
<param>
<key>value</key>
<value>2</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>(312, 12)</value>
</param>
<param>
<key>_rotation</key>
<value>0</value>
</param>
<param>
<key>id</key>
<value>fft_len</value>
</param>
<param>
<key>value</key>
<value>128</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>(592, 68)</value>
</param>
<param>
<key>_rotation</key>
<value>0</value>
</param>
<param>
<key>id</key>
<value>header_equalizer</value>
</param>
<param>
<key>value</key>
<value>digital.ofdm_equalizer_simpledfe(fft_len, header_mod.base(), occupied_carriers, pilot_carriers, pilot_symbols)</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>(824, 12)</value>
</param>
<param>
<key>_rotation</key>
<value>0</value>
</param>
<param>
<key>id</key>
<value>header_formatter</value>
</param>
<param>
<key>value</key>
<value>digital.packet_header_ofdm(occupied_carriers, n_syms=1, len_tag_key=packet_length_tag_key, frame_len_tag_key=length_tag_key, bits_per_header_sym=header_mod.bits_per_symbol(), bits_per_payload_sym=payload_mod.bits_per_symbol(), scramble_header=False)</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>(504, 12)</value>
</param>
<param>
<key>_rotation</key>
<value>0</value>
</param>
<param>
<key>id</key>
<value>header_mod</value>
</param>
<param>
<key>value</key>
<value>digital.constellation_bpsk()</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>(376, 12)</value>
</param>
<param>
<key>_rotation</key>
<value>0</value>
</param>
<param>
<key>id</key>
<value>length_tag_key</value>
</param>
<param>
<key>value</key>
<value>"frame_len"</value>
</param>
</block>
<block>
<key>variable</key>
<param>
<key>comment</key>
<value></value>
</param>
<param>
<key>_enabled</key>
<value>1</value>
</param>
<param>
<key>_coordinate</key>
<value>(200, 52)</value>
</param>
<param>
<key>_rotation</key>
<value>0</value>
</param>
<param>
<key>id</key>
<value>min_obuffer</value>
</param>
<param>
<key>value</key>
<value>2**16</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>(528, 132)</value>
</param>
<param>
<key>_rotation</key>
<value>0</value>
</param>
<param>
<key>id</key>
<value>occupied_carriers</value>
</param>
<param>
<key>value</key>
<value>(range(-52, -49) + range(-48, -35) + range(-34, -21) + range(-20, -7) + range(-6, 0) + range(1, 7) + range(8, 21) + range(22, 35) + range(36, 49) + range(50, 52),)</value>
</param>
</block>
<block>
<key>variable</key>
<param>
<key>comment</key>
<value></value>
</param>
<param>
<key>_enabled</key>
<value>1</value>
</param>
<param>
<key>_coordinate</key>
<value>(1104, 292)</value>
</param>
<param>
<key>_rotation</key>
<value>0</value>
</param>
<param>
<key>id</key>
<value>occupied_carriers_0</value>
</param>
<param>
<key>value</key>
<value>( range(-20, -7) + range(-6, 0) + range(1, 7) + range(8, 21),)</value>
</param>
</block>
<block>
<key>variable</key>
<param>
<key>comment</key>
<value></value>
</param>
<param>
<key>_enabled</key>
<value>1</value>
</param>
<param>
<key>_coordinate</key>
<value>(1160, 204)</value>
</param>
<param>
<key>_rotation</key>
<value>0</value>
</param>
<param>
<key>id</key>
<value>occupied_carriers_1</value>
</param>
<param>
<key>value</key>
<value>( range(-10, 0),)</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>(1144, 12)</value>
</param>
<param>
<key>_rotation</key>
<value>0</value>
</param>
<param>
<key>id</key>
<value>packet_len</value>
</param>
<param>
<key>value</key>
<value>96</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>(1000, 12)</value>
</param>
<param>
<key>_rotation</key>
<value>0</value>
</param>
<param>
<key>id</key>
<value>packet_length_tag_key</value>
</param>
<param>
<key>value</key>
<value>"packet_len"</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>(416, 68)</value>
</param>
<param>
<key>_rotation</key>
<value>0</value>
</param>
<param>
<key>id</key>
<value>payload_equalizer</value>
</param>
<param>
<key>value</key>
<value>digital.ofdm_equalizer_simpledfe(fft_len, payload_mod.base(), occupied_carriers, pilot_carriers, pilot_symbols, 1)</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>(664, 12)</value>
</param>
<param>
<key>_rotation</key>
<value>0</value>
</param>
<param>
<key>id</key>
<value>payload_mod</value>
</param>
<param>
<key>value</key>
<value>digital.constellation_qpsk()</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>(680, 132)</value>
</param>
<param>
<key>_rotation</key>
<value>0</value>
</param>
<param>
<key>id</key>
<value>pilot_carriers</value>
</param>
<param>
<key>value</key>
<value>((-49, -35, -21, -7, 7, 21, 35, 49),)</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>(1248, 292)</value>
</param>
<param>
<key>_rotation</key>
<value>0</value>
</param>
<param>
<key>id</key>
<value>pilot_carriers_0</value>
</param>
<param>
<key>value</key>
<value>((-21, -7,7,21),)</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>(1304, 204)</value>
</param>
<param>
<key>_rotation</key>
<value>0</value>
</param>
<param>
<key>id</key>
<value>pilot_carriers_1</value>
</param>
<param>
<key>value</key>
<value>((),)</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>(872, 132)</value>
</param>
<param>
<key>_rotation</key>
<value>0</value>
</param>
<param>
<key>id</key>
<value>pilot_symbols</value>
</param>
<param>
<key>value</key>
<value>((1,-1,1, -1, 1, -1, -1, -1),)</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>(1440, 292)</value>
</param>
<param>
<key>_rotation</key>
<value>0</value>
</param>
<param>
<key>id</key>
<value>pilot_symbols_0</value>
</param>
<param>
<key>value</key>
<value>((1,-1,1, -1),)</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>(1496, 204)</value>
</param>
<param>
<key>_rotation</key>
<value>0</value>
</param>
<param>
<key>id</key>
<value>pilot_symbols_1</value>
</param>
<param>
<key>value</key>
<value>((),)</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>(312, 68)</value>
</param>
<param>
<key>_rotation</key>
<value>0</value>
</param>
<param>
<key>id</key>
<value>redundant_len</value>
</param>
<param>
<key>value</key>
<value>16</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>(112, 156)</value>
</param>
<param>
<key>_rotation</key>
<value>0</value>
</param>
<param>
<key>id</key>
<value>rf_gain</value>
</param>
<param>
<key>value</key>
<value>30</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>(88, 236)</value>
</param>
<param>
<key>_rotation</key>
<value>0</value>
</param>
<param>
<key>id</key>
<value>rx_center_freq</value>
</param>
<param>
<key>value</key>
<value>900e6</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>(0, 236)</value>
</param>
<param>
<key>_rotation</key>
<value>180</value>
</param>
<param>
<key>id</key>
<value>rx_gain</value>
</param>
<param>
<key>value</key>
<value>0</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>(8, 84)</value>
</param>
<param>
<key>_rotation</key>
<value>0</value>
</param>
<param>
<key>id</key>
<value>samp_rate</value>
</param>
<param>
<key>value</key>
<value>1000000</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>(320, 332)</value>
</param>
<param>
<key>_rotation</key>
<value>0</value>
</param>
<param>
<key>id</key>
<value>syn_ftaps</value>
</param>
<param>
<key>value</key>
<value>firdes.low_pass_2(1, samp_rate, ch_bw, ch_tb, atten, firdes.WIN_HANN)</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>(768, 68)</value>
</param>
<param>
<key>_rotation</key>
<value>0</value>
</param>
<param>
<key>id</key>
<value>sync_word1</value>
</param>
<param>
<key>value</key>
<value>[0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, -1.4142135623730951, 0.0, -1.4142135623730951, 0.0, -1.4142135623730951, 0.0, -1.4142135623730951, 0.0, 1.4142135623730951, 0.0, 1.4142135623730951, 0.0, -1.4142135623730951, 0.0, -1.4142135623730951, 0.0, -1.4142135623730951, 0.0, 1.4142135623730951, 0.0, -1.4142135623730951, 0.0, 1.4142135623730951, 0.0, 1.4142135623730951, 0.0, 1.4142135623730951, 0.0, 1.4142135623730951, 0.0, 1.4142135623730951, 0.0, -1.4142135623730951, 0.0, -1.4142135623730951, 0.0, -1.4142135623730951, 0.0, -1.4142135623730951, 0.0, -1.4142135623730951, 0.0, 1.4142135623730951, 0.0, -1.4142135623730951, 0.0, -1.4142135623730951, 0.0, 1.4142135623730951, 0.0, -1.4142135623730951, 0.0, 1.4142135623730951, 0.0, -1.4142135623730951, 0.0, 1.4142135623730951, 0.0, 1.4142135623730951, 0.0, 1.4142135623730951, 0.0, -1.4142135623730951, 0.0, 1.4142135623730951, 0.0, 1.4142135623730951, 0.0, 1.4142135623730951, 0.0, -1.4142135623730951, 0.0, 1.4142135623730951, 0.0, 1.4142135623730951, 0.0, 1.4142135623730951, 0.0, 1.4142135623730951, 0.0, -1.4142135623730951, 0.0, 1.4142135623730951, 0.0, -1.4142135623730951, 0.0, -1.4142135623730951, 0.0, -1.4142135623730951, 0.0, 1.4142135623730951, 0.0, -1.4142135623730951, 0.0, 1.4142135623730951, 0.0, -1.4142135623730951, 0.0, -1.4142135623730951, 0.0, -1.4142135623730951, 0.0, -1.4142135623730951, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0]</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>(912, 68)</value>
</param>
<param>
<key>_rotation</key>
<value>0</value>
</param>
<param>
<key>id</key>
<value>sync_word2</value>
</param>
<param>
<key>value</key>
<value>[0j, 0j, 0j, 0j, 0j, 0j, 0j, 0j, 0j, 0j, 0j, 0j, (-1+0j), (1+0j), (-1+0j), (1+0j), (-1+0j), (-1+0j), (1+0j), (1+0j), (1+0j), (1+0j), (1+0j), (1+0j), (1+0j), (1+0j), (-1+0j), (-1+0j), (1+0j), (-1+0j), (-1+0j), (-1+0j), (-1+0j), (1+0j), (-1+0j), (1+0j), (-1+0j), (-1+0j), (-1+0j), (1+0j), (-1+0j), (1+0j), (-1+0j), (1+0j), (-1+0j), (1+0j), (1+0j), (-1+0j), (1+0j), (-1+0j), (-1+0j), (-1+0j), (-1+0j), (-1+0j), (-1+0j), (-1+0j), (-1+0j), (-1+0j), (-1+0j), (-1+0j), (1+0j), (1+0j), (-1+0j), (-1+0j), 0j, (1+0j), (-1+0j), (1+0j), (1+0j), (1+0j), (-1+0j), (1+0j), (1+0j), (1+0j), (-1+0j), (1+0j), (1+0j), (1+0j), (1+0j), (-1+0j), (1+0j), (-1+0j), (-1+0j), (-1+0j), (1+0j), (-1+0j), (1+0j), (-1+0j), (-1+0j), (-1+0j), (-1+0j), (-1+0j), (-1+0j), (-1+0j), (-1+0j), (1+0j), (1+0j), (-1+0j), (-1+0j), (-1+0j), (1+0j), (-1+0j), (1+0j), (1+0j), (1+0j), (1+0j), (1+0j), (-1+0j), (-1+0j), (-1+0j), (-1+0j), (-1+0j), (1+0j), (-1+0j), (-1+0j), (1+0j), 0j, 0j, 0j, 0j, 0j, 0j, 0j, 0j, 0j, 0j, 0j, 0j]</value>
</param>
</block>
<block>
<key>blocks_file_sink</key>
<param>
<key>append</key>
<value>False</value>
</param>
<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>file</key>
<value>/home/rcetin/ofdm_rx_1</value>
</param>
<param>
<key>_coordinate</key>
<value>(1696, 460)</value>
</param>
<param>
<key>_rotation</key>
<value>0</value>
</param>
<param>
<key>id</key>
<value>blocks_file_sink_0</value>
</param>
<param>
<key>type</key>
<value>byte</value>
</param>
<param>
<key>unbuffered</key>
<value>False</value>
</param>
<param>
<key>vlen</key>
<value>1</value>
</param>
</block>
<block>
<key>blocks_file_sink</key>
<param>
<key>append</key>
<value>False</value>
</param>
<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>file</key>
<value>/home/rcetin/ofdm_rx_2</value>
</param>
<param>
<key>_coordinate</key>
<value>(1728, 1028)</value>
</param>
<param>
<key>_rotation</key>
<value>0</value>
</param>
<param>
<key>id</key>
<value>blocks_file_sink_0_0</value>
</param>
<param>
<key>type</key>
<value>byte</value>
</param>
<param>
<key>unbuffered</key>
<value>False</value>
</param>
<param>
<key>vlen</key>
<value>1</value>
</param>
</block>
<block>
<key>blocks_file_source</key>
<param>
<key>begin_tag</key>
<value>pmt.PMT_NIL</value>
</param>
<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>file</key>
<value>/home/rcetin/sample_vid_2.mp4</value>
</param>
<param>
<key>_coordinate</key>
<value>(8, 756)</value>
</param>
<param>
<key>_rotation</key>
<value>0</value>
</param>
<param>
<key>id</key>
<value>blocks_file_source_0_0</value>
</param>
<param>
<key>maxoutbuf</key>
<value>0</value>
</param>
<param>
<key>minoutbuf</key>
<value>0</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>
</block>
<block>
<key>blocks_multiply_const_vxx</key>
<param>
<key>alias</key>
<value></value>
</param>
<param>
<key>comment</key>
<value></value>
</param>
<param>
<key>const</key>
<value>0.05</value>
</param>
<param>
<key>affinity</key>
<value></value>
</param>
<param>
<key>_enabled</key>
<value>1</value>
</param>
<param>
<key>_coordinate</key>
<value>(824, 868)</value>
</param>
<param>
<key>_rotation</key>
<value>0</value>
</param>
<param>
<key>id</key>
<value>blocks_multiply_const_vxx_0</value>
</param>
<param>
<key>type</key>
<value>complex</value>
</param>
<param>
<key>maxoutbuf</key>
<value>0</value>
</param>
<param>
<key>minoutbuf</key>
<value>min_obuffer</value>
</param>
<param>
<key>vlen</key>
<value>1</value>
</param>
</block>
<block>
<key>blocks_null_sink</key>
<param>
<key>alias</key>
<value></value>
</param>
<param>
<key>bus_conns</key>
<value>[[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>_coordinate</key>
<value>(1488, 840)</value>
</param>
<param>
<key>_rotation</key>
<value>0</value>
</param>
<param>
<key>id</key>
<value>blocks_null_sink_0</value>
</param>
<param>
<key>type</key>
<value>complex</value>
</param>
<param>
<key>num_inputs</key>
<value>1</value>
</param>
<param>
<key>vlen</key>
<value>1</value>
</param>
</block>
<block>
<key>blocks_stream_to_tagged_stream</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>(48, 892)</value>
</param>
<param>
<key>_rotation</key>
<value>0</value>
</param>
<param>
<key>id</key>
<value>blocks_stream_to_tagged_stream_0</value>
</param>
<param>
<key>len_tag_key</key>
<value>packet_length_tag_key</value>
</param>
<param>
<key>maxoutbuf</key>
<value>0</value>
</param>
<param>
<key>minoutbuf</key>
<value>0</value>
</param>
<param>
<key>packet_len</key>
<value>packet_len</value>
</param>
<param>
<key>type</key>
<value>byte</value>
</param>
<param>
<key>vlen</key>
<value>1</value>
</param>
</block>
<block>
<key>blocks_tag_debug</key>
<param>
<key>alias</key>
<value></value>
</param>
<param>
<key>comment</key>
<value></value>
</param>
<param>
<key>affinity</key>
<value></value>
</param>
<param>
<key>display</key>
<value>True</value>
</param>
<param>
<key>_enabled</key>
<value>1</value>
</param>
<param>
<key>_coordinate</key>
<value>(1696, 388)</value>
</param>
<param>
<key>_rotation</key>
<value>0</value>
</param>
<param>
<key>id</key>
<value>blocks_tag_debug_0</value>
</param>
<param>
<key>type</key>
<value>byte</value>
</param>
<param>
<key>filter</key>
<value>""</value>
</param>
<param>
<key>name</key>
<value>Rx'd Packets</value>
</param>
<param>
<key>num_inputs</key>
<value>1</value>
</param>
<param>
<key>vlen</key>
<value>1</value>
</param>
</block>
<block>
<key>blocks_tag_debug</key>
<param>
<key>alias</key>
<value></value>
</param>
<param>
<key>comment</key>
<value></value>
</param>
<param>
<key>affinity</key>
<value></value>
</param>
<param>
<key>display</key>
<value>True</value>
</param>
<param>
<key>_enabled</key>
<value>1</value>
</param>
<param>
<key>_coordinate</key>
<value>(1744, 900)</value>
</param>
<param>
<key>_rotation</key>
<value>0</value>
</param>
<param>
<key>id</key>
<value>blocks_tag_debug_0_0</value>
</param>
<param>
<key>type</key>
<value>byte</value>
</param>
<param>
<key>filter</key>
<value>""</value>
</param>
<param>
<key>name</key>
<value>Rx'd Packets 2</value>
</param>
<param>
<key>num_inputs</key>
<value>1</value>
</param>
<param>
<key>vlen</key>
<value>1</value>
</param>
</block>
<block>
<key>blocks_tag_gate</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>(808, 684)</value>
</param>
<param>
<key>_rotation</key>
<value>0</value>
</param>
<param>
<key>id</key>
<value>blocks_tag_gate_0</value>
</param>
<param>
<key>type</key>
<value>complex</value>
</param>
<param>
<key>maxoutbuf</key>
<value>0</value>
</param>
<param>
<key>minoutbuf</key>
<value>min_obuffer</value>
</param>
<param>
<key>propagate_tags</key>
<value>True</value>
</param>
<param>
<key>single_key</key>
<value>""</value>
</param>
<param>
<key>vlen</key>
<value>1</value>
</param>
</block>
<block>
<key>blocks_throttle</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>(1176, 1016)</value>
</param>
<param>
<key>_rotation</key>
<value>0</value>
</param>
<param>
<key>id</key>
<value>blocks_throttle_0</value>
</param>
<param>
<key>ignoretag</key>
<value>True</value>
</param>
<param>
<key>maxoutbuf</key>
<value>0</value>
</param>
<param>
<key>minoutbuf</key>
<value>0</value>
</param>
<param>
<key>samples_per_second</key>
<value>samp_rate</value>
</param>
<param>
<key>type</key>
<value>complex</value>
</param>
<param>
<key>vlen</key>
<value>1</value>
</param>
</block>
<block>
<key>digital_ofdm_rx</key>
<param>
<key>alias</key>
<value></value>
</param>
<param>
<key>comment</key>
<value></value>
</param>
<param>
<key>affinity</key>
<value></value>
</param>
<param>
<key>cp_len</key>
<value>fft_len/4</value>
</param>
<param>
<key>_enabled</key>
<value>1</value>
</param>
<param>
<key>fft_len</key>
<value>fft_len</value>
</param>
<param>
<key>_coordinate</key>
<value>(1416, 380)</value>
</param>
<param>
<key>_rotation</key>
<value>0</value>
</param>
<param>
<key>header_mod</key>
<value>"BPSK"</value>
</param>
<param>
<key>id</key>
<value>digital_ofdm_rx_0</value>
</param>
<param>
<key>log</key>
<value>False</value>
</param>
<param>
<key>maxoutbuf</key>
<value>0</value>
</param>
<param>
<key>minoutbuf</key>
<value>min_obuffer</value>
</param>
<param>
<key>occupied_carriers</key>
<value>occupied_carriers_0</value>
</param>
<param>
<key>packet_len_key</key>
<value>packet_length_tag_key</value>
</param>
<param>
<key>payload_mod</key>
<value>"QPSK"</value>
</param>
<param>
<key>pilot_carriers</key>
<value>pilot_carriers_0</value>
</param>
<param>
<key>pilot_symbols</key>
<value>pilot_symbols_0</value>
</param>
<param>
<key>scramble_bits</key>
<value>False</value>
</param>
<param>
<key>sync_word1</key>
<value>()</value>
</param>
<param>
<key>sync_word2</key>
<value>()</value>
</param>
</block>
<block>
<key>digital_ofdm_rx</key>
<param>
<key>alias</key>
<value></value>
</param>
<param>
<key>comment</key>
<value></value>
</param>
<param>
<key>affinity</key>
<value></value>
</param>
<param>
<key>cp_len</key>
<value>fft_len/4</value>
</param>
<param>
<key>_enabled</key>
<value>1</value>
</param>
<param>
<key>fft_len</key>
<value>fft_len</value>
</param>
<param>
<key>_coordinate</key>
<value>(1432, 900)</value>
</param>
<param>
<key>_rotation</key>
<value>0</value>
</param>
<param>
<key>header_mod</key>
<value>"BPSK"</value>
</param>
<param>
<key>id</key>
<value>digital_ofdm_rx_0_0</value>
</param>
<param>
<key>log</key>
<value>False</value>
</param>
<param>
<key>maxoutbuf</key>
<value>0</value>
</param>
<param>
<key>minoutbuf</key>
<value>min_obuffer</value>
</param>
<param>
<key>occupied_carriers</key>
<value>occupied_carriers_0</value>
</param>
<param>
<key>packet_len_key</key>
<value>packet_length_tag_key</value>
</param>
<param>
<key>payload_mod</key>
<value>"QPSK"</value>
</param>
<param>
<key>pilot_carriers</key>
<value>pilot_carriers_0</value>
</param>
<param>
<key>pilot_symbols</key>
<value>pilot_symbols_0</value>
</param>
<param>
<key>scramble_bits</key>
<value>False</value>
</param>
<param>
<key>sync_word1</key>
<value>()</value>
</param>
<param>
<key>sync_word2</key>
<value>()</value>
</param>
</block>
<block>
<key>digital_ofdm_tx</key>
<param>
<key>alias</key>
<value></value>
</param>
<param>
<key>comment</key>
<value></value>
</param>
<param>
<key>affinity</key>
<value></value>
</param>
<param>
<key>cp_len</key>
<value>fft_len/4</value>
</param>
<param>
<key>_enabled</key>
<value>0</value>
</param>
<param>
<key>fft_len</key>
<value>fft_len</value>
</param>
<param>
<key>_coordinate</key>
<value>(344, 748)</value>
</param>
<param>
<key>_rotation</key>
<value>0</value>
</param>
<param>
<key>header_mod</key>
<value>"BPSK"</value>
</param>
<param>
<key>id</key>
<value>digital_ofdm_tx_0</value>
</param>
<param>
<key>packet_len_key</key>
<value>packet_length_tag_key</value>
</param>
<param>
<key>log</key>
<value>False</value>
</param>
<param>
<key>maxoutbuf</key>
<value>0</value>
</param>
<param>
<key>minoutbuf</key>
<value>min_obuffer</value>
</param>
<param>
<key>occupied_carriers</key>
<value>occupied_carriers_0</value>
</param>
<param>
<key>payload_mod</key>
<value>"QPSK"</value>
</param>
<param>
<key>pilot_carriers</key>
<value>pilot_carriers_0</value>
</param>
<param>
<key>pilot_symbols</key>
<value>pilot_symbols_0</value>
</param>
<param>
<key>rolloff</key>
<value>fft_len/8</value>
</param>
<param>
<key>scramble_bits</key>
<value>False</value>
</param>
<param>
<key>sync_word1</key>
<value>()</value>
</param>
<param>
<key>sync_word2</key>
<value>()</value>
</param>
</block>
<block>
<key>digital_ofdm_tx</key>
<param>
<key>alias</key>
<value></value>
</param>
<param>
<key>comment</key>
<value></value>
</param>
<param>
<key>affinity</key>
<value></value>
</param>
<param>
<key>cp_len</key>
<value>fft_len/4</value>
</param>
<param>
<key>_enabled</key>
<value>1</value>
</param>
<param>
<key>fft_len</key>
<value>fft_len</value>
</param>
<param>
<key>_coordinate</key>
<value>(344, 932)</value>
</param>
<param>
<key>_rotation</key>
<value>0</value>
</param>
<param>
<key>header_mod</key>
<value>"BPSK"</value>
</param>
<param>
<key>id</key>
<value>digital_ofdm_tx_0_0</value>
</param>
<param>
<key>packet_len_key</key>
<value>packet_length_tag_key</value>
</param>
<param>
<key>log</key>
<value>False</value>
</param>
<param>
<key>maxoutbuf</key>
<value>0</value>
</param>
<param>
<key>minoutbuf</key>
<value>min_obuffer</value>
</param>
<param>
<key>occupied_carriers</key>
<value>occupied_carriers_0</value>
</param>
<param>
<key>payload_mod</key>
<value>"QPSK"</value>
</param>
<param>
<key>pilot_carriers</key>
<value>pilot_carriers_0</value>
</param>
<param>
<key>pilot_symbols</key>
<value>pilot_symbols_0</value>
</param>
<param>
<key>rolloff</key>
<value>fft_len/8</value>
</param>
<param>
<key>scramble_bits</key>
<value>False</value>
</param>
<param>
<key>sync_word1</key>
<value>()</value>
</param>
<param>
<key>sync_word2</key>
<value>()</value>
</param>
</block>
<block>
<key>digital_ofdm_tx</key>
<param>
<key>alias</key>
<value></value>
</param>
<param>
<key>comment</key>
<value></value>
</param>
<param>
<key>affinity</key>
<value></value>
</param>
<param>
<key>cp_len</key>
<value>fft_len/4</value>
</param>
<param>
<key>_enabled</key>
<value>1</value>
</param>
<param>
<key>fft_len</key>
<value>fft_len</value>
</param>
<param>
<key>_coordinate</key>
<value>(344, 1116)</value>
</param>
<param>
<key>_rotation</key>
<value>0</value>
</param>
<param>
<key>header_mod</key>
<value>"BPSK"</value>
</param>
<param>
<key>id</key>
<value>digital_ofdm_tx_0_0_0</value>
</param>
<param>
<key>packet_len_key</key>
<value>packet_length_tag_key</value>
</param>
<param>
<key>log</key>
<value>False</value>
</param>
<param>
<key>maxoutbuf</key>
<value>0</value>
</param>
<param>
<key>minoutbuf</key>
<value>min_obuffer</value>
</param>
<param>
<key>occupied_carriers</key>
<value>occupied_carriers_0</value>
</param>
<param>
<key>payload_mod</key>
<value>"QPSK"</value>
</param>
<param>
<key>pilot_carriers</key>
<value>pilot_carriers_0</value>
</param>
<param>
<key>pilot_symbols</key>
<value>pilot_symbols_0</value>
</param>
<param>
<key>rolloff</key>
<value>fft_len/8</value>
</param>
<param>
<key>scramble_bits</key>
<value>False</value>
</param>
<param>
<key>sync_word1</key>
<value>()</value>
</param>
<param>
<key>sync_word2</key>
<value>()</value>
</param>
</block>
<block>
<key>import</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>(176, 12)</value>
</param>
<param>
<key>_rotation</key>
<value>0</value>
</param>
<param>
<key>id</key>
<value>import_1</value>
</param>
<param>
<key>import</key>
<value>from gnuradio.digital.utils import tagged_streams</value>
</param>
</block>
<block>
<key>pfb_channelizer_ccf</key>
<param>
<key>atten</key>
<value>100</value>
</param>
<param>
<key>alias</key>
<value></value>
</param>
<param>
<key>bus_conns</key>
<value>[[0,],]</value>
</param>
<param>
<key>ch_map</key>
<value>[]</value>
</param>
<param>
<key>nchans</key>
<value>chan_channels</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>(1200, 660)</value>
</param>
<param>
<key>_rotation</key>
<value>0</value>
</param>
<param>
<key>id</key>
<value>pfb_channelizer_ccf_0</value>
</param>
<param>
<key>maxoutbuf</key>
<value>0</value>
</param>
<param>
<key>minoutbuf</key>
<value>0</value>
</param>
<param>
<key>osr</key>
<value>1.0</value>
</param>
<param>
<key>samp_delay</key>
<value>0</value>
</param>
<param>
<key>taps</key>
<value>chan_ftaps</value>
</param>
</block>
<block>
<key>pfb_synthesizer_ccf</key>
<param>
<key>twox</key>
<value>False</value>
</param>
<param>
<key>alias</key>
<value></value>
</param>
<param>
<key>bus_conns</key>
<value>[[0,],]</value>
</param>
<param>
<key>ch_map</key>
<value>[0,1]</value>
</param>
<param>
<key>numchans</key>
<value>2</value>
</param>
<param>
<key>comment</key>
<value></value>
</param>
<param>
<key>connections</key>
<value>2</value>
</param>
<param>
<key>affinity</key>
<value></value>
</param>
<param>
<key>_enabled</key>
<value>True</value>
</param>
<param>
<key>_coordinate</key>
<value>(832, 996)</value>
</param>
<param>
<key>_rotation</key>
<value>0</value>
</param>
<param>
<key>id</key>
<value>pfb_synthesizer_ccf_0</value>
</param>
<param>
<key>maxoutbuf</key>
<value>0</value>
</param>
<param>
<key>minoutbuf</key>
<value>0</value>
</param>
<param>
<key>samp_delay</key>
<value>0</value>
</param>
<param>
<key>taps</key>
<value>syn_ftaps</value>
</param>
</block>
<block>
<key>qtgui_freq_sink_x</key>
<param>
<key>autoscale</key>
<value>False</value>
</param>
<param>
<key>average</key>
<value>1.0</value>
</param>
<param>
<key>axislabels</key>
<value>True</value>
</param>
<param>
<key>bw</key>
<value>samp_rate</value>
</param>
<param>
<key>alias</key>
<value></value>
</param>
<param>
<key>fc</key>
<value>0</value>
</param>
<param>
<key>comment</key>
<value></value>
</param>
<param>
<key>ctrlpanel</key>
<value>False</value>
</param>
<param>
<key>affinity</key>
<value></value>
</param>
<param>
<key>_enabled</key>
<value>1</value>
</param>
<param>
<key>fftsize</key>
<value>1024</value>
</param>
<param>
<key>_coordinate</key>
<value>(816, 572)</value>
</param>
<param>
<key>gui_hint</key>
<value></value>
</param>
<param>
<key>_rotation</key>
<value>0</value>
</param>
<param>
<key>grid</key>
<value>False</value>
</param>
<param>
<key>id</key>
<value>qtgui_freq_sink_x_0</value>
</param>
<param>
<key>legend</key>
<value>True</value>
</param>
<param>
<key>alpha1</key>
<value>1.0</value>
</param>
<param>
<key>color1</key>
<value>"blue"</value>
</param>
<param>
<key>label1</key>
<value></value>
</param>
<param>
<key>width1</key>
<value>1</value>
</param>
<param>
<key>alpha10</key>
<value>1.0</value>
</param>
<param>
<key>color10</key>
<value>"dark blue"</value>
</param>
<param>
<key>label10</key>
<value></value>
</param>
<param>
<key>width10</key>
<value>1</value>
</param>
<param>
<key>alpha2</key>
<value>1.0</value>
</param>
<param>
<key>color2</key>
<value>"red"</value>
</param>
<param>
<key>label2</key>
<value></value>
</param>
<param>
<key>width2</key>
<value>1</value>
</param>
<param>
<key>alpha3</key>
<value>1.0</value>
</param>
<param>
<key>color3</key>
<value>"green"</value>
</param>
<param>
<key>label3</key>
<value></value>
</param>
<param>
<key>width3</key>
<value>1</value>
</param>
<param>
<key>alpha4</key>
<value>1.0</value>
</param>
<param>
<key>color4</key>
<value>"black"</value>
</param>
<param>
<key>label4</key>
<value></value>
</param>
<param>
<key>width4</key>
<value>1</value>
</param>
<param>
<key>alpha5</key>
<value>1.0</value>
</param>
<param>
<key>color5</key>
<value>"cyan"</value>
</param>
<param>
<key>label5</key>
<value></value>
</param>
<param>
<key>width5</key>
<value>1</value>
</param>
<param>
<key>alpha6</key>
<value>1.0</value>
</param>
<param>
<key>color6</key>
<value>"magenta"</value>
</param>
<param>
<key>label6</key>
<value></value>
</param>
<param>
<key>width6</key>
<value>1</value>
</param>
<param>
<key>alpha7</key>
<value>1.0</value>
</param>
<param>
<key>color7</key>
<value>"yellow"</value>
</param>
<param>
<key>label7</key>
<value></value>
</param>
<param>
<key>width7</key>
<value>1</value>
</param>
<param>
<key>alpha8</key>
<value>1.0</value>
</param>
<param>
<key>color8</key>
<value>"dark red"</value>
</param>
<param>
<key>label8</key>
<value></value>
</param>
<param>
<key>width8</key>
<value>1</value>
</param>
<param>
<key>alpha9</key>
<value>1.0</value>
</param>
<param>
<key>color9</key>
<value>"dark green"</value>
</param>
<param>
<key>label9</key>
<value></value>
</param>
<param>
<key>width9</key>
<value>1</value>
</param>
<param>
<key>maxoutbuf</key>
<value>0</value>
</param>
<param>
<key>minoutbuf</key>
<value>0</value>
</param>
<param>
<key>name</key>
<value>""</value>
</param>
<param>
<key>nconnections</key>
<value>1</value>
</param>
<param>
<key>showports</key>
<value>True</value>
</param>
<param>
<key>freqhalf</key>
<value>True</value>
</param>
<param>
<key>tr_chan</key>
<value>0</value>
</param>
<param>
<key>tr_level</key>
<value>0.0</value>
</param>
<param>
<key>tr_mode</key>
<value>qtgui.TRIG_MODE_FREE</value>
</param>
<param>
<key>tr_tag</key>
<value>""</value>
</param>
<param>
<key>type</key>
<value>complex</value>
</param>
<param>
<key>update_time</key>
<value>0.10</value>
</param>
<param>
<key>wintype</key>
<value>firdes.WIN_BLACKMAN_hARRIS</value>
</param>
<param>
<key>label</key>
<value>Relative Gain</value>
</param>
<param>
<key>ymax</key>
<value>10</value>
</param>
<param>
<key>ymin</key>
<value>-140</value>
</param>
<param>
<key>units</key>
<value>dB</value>
</param>
</block>
<block>
<key>qtgui_freq_sink_x</key>
<param>
<key>autoscale</key>
<value>False</value>
</param>
<param>
<key>average</key>
<value>1.0</value>
</param>
<param>
<key>axislabels</key>
<value>True</value>
</param>
<param>
<key>bw</key>
<value>samp_rate</value>
</param>
<param>
<key>alias</key>
<value></value>
</param>
<param>
<key>fc</key>
<value>0</value>
</param>
<param>
<key>comment</key>
<value></value>
</param>
<param>
<key>ctrlpanel</key>
<value>False</value>
</param>
<param>
<key>affinity</key>
<value></value>
</param>
<param>
<key>_enabled</key>
<value>1</value>
</param>
<param>
<key>fftsize</key>
<value>1024</value>
</param>
<param>
<key>_coordinate</key>
<value>(1536, 628)</value>
</param>
<param>
<key>gui_hint</key>
<value></value>
</param>
<param>
<key>_rotation</key>
<value>0</value>
</param>
<param>
<key>grid</key>
<value>False</value>
</param>
<param>
<key>id</key>
<value>qtgui_freq_sink_x_0_0</value>
</param>
<param>
<key>legend</key>
<value>True</value>
</param>
<param>
<key>alpha1</key>
<value>1.0</value>
</param>
<param>
<key>color1</key>
<value>"blue"</value>
</param>
<param>
<key>label1</key>
<value></value>
</param>
<param>
<key>width1</key>
<value>1</value>
</param>
<param>
<key>alpha10</key>
<value>1.0</value>
</param>
<param>
<key>color10</key>
<value>"dark blue"</value>
</param>
<param>
<key>label10</key>
<value></value>
</param>
<param>
<key>width10</key>
<value>1</value>
</param>
<param>
<key>alpha2</key>
<value>1.0</value>
</param>
<param>
<key>color2</key>
<value>"red"</value>
</param>
<param>
<key>label2</key>
<value></value>
</param>
<param>
<key>width2</key>
<value>1</value>
</param>
<param>
<key>alpha3</key>
<value>1.0</value>
</param>
<param>
<key>color3</key>
<value>"green"</value>
</param>
<param>
<key>label3</key>
<value></value>
</param>
<param>
<key>width3</key>
<value>1</value>
</param>
<param>
<key>alpha4</key>
<value>1.0</value>
</param>
<param>
<key>color4</key>
<value>"black"</value>
</param>
<param>
<key>label4</key>
<value></value>
</param>
<param>
<key>width4</key>
<value>1</value>
</param>
<param>
<key>alpha5</key>
<value>1.0</value>
</param>
<param>
<key>color5</key>
<value>"cyan"</value>
</param>
<param>
<key>label5</key>
<value></value>
</param>
<param>
<key>width5</key>
<value>1</value>
</param>
<param>
<key>alpha6</key>
<value>1.0</value>
</param>
<param>
<key>color6</key>
<value>"magenta"</value>
</param>
<param>
<key>label6</key>
<value></value>
</param>
<param>
<key>width6</key>
<value>1</value>
</param>
<param>
<key>alpha7</key>
<value>1.0</value>
</param>
<param>
<key>color7</key>
<value>"yellow"</value>
</param>
<param>
<key>label7</key>
<value></value>
</param>
<param>
<key>width7</key>
<value>1</value>
</param>
<param>
<key>alpha8</key>
<value>1.0</value>
</param>
<param>
<key>color8</key>
<value>"dark red"</value>
</param>
<param>
<key>label8</key>
<value></value>
</param>
<param>
<key>width8</key>
<value>1</value>
</param>
<param>
<key>alpha9</key>
<value>1.0</value>
</param>
<param>
<key>color9</key>
<value>"dark green"</value>
</param>
<param>
<key>label9</key>
<value></value>
</param>
<param>
<key>width9</key>
<value>1</value>
</param>
<param>
<key>maxoutbuf</key>
<value>0</value>
</param>
<param>
<key>minoutbuf</key>
<value>0</value>
</param>
<param>
<key>name</key>
<value>"o0"</value>
</param>
<param>
<key>nconnections</key>
<value>1</value>
</param>
<param>
<key>showports</key>
<value>True</value>
</param>
<param>
<key>freqhalf</key>
<value>True</value>
</param>
<param>
<key>tr_chan</key>
<value>0</value>
</param>
<param>
<key>tr_level</key>
<value>0.0</value>
</param>
<param>
<key>tr_mode</key>
<value>qtgui.TRIG_MODE_FREE</value>
</param>
<param>
<key>tr_tag</key>
<value>""</value>
</param>
<param>
<key>type</key>
<value>complex</value>
</param>
<param>
<key>update_time</key>
<value>0.10</value>
</param>
<param>
<key>wintype</key>
<value>firdes.WIN_BLACKMAN_hARRIS</value>
</param>
<param>
<key>label</key>
<value>Relative Gain</value>
</param>
<param>
<key>ymax</key>
<value>10</value>
</param>
<param>
<key>ymin</key>
<value>-140</value>
</param>
<param>
<key>units</key>
<value>dB</value>
</param>
</block>
<block>
<key>qtgui_freq_sink_x</key>
<param>
<key>autoscale</key>
<value>False</value>
</param>
<param>
<key>average</key>
<value>1.0</value>
</param>
<param>
<key>axislabels</key>
<value>True</value>
</param>
<param>
<key>bw</key>
<value>samp_rate</value>
</param>
<param>
<key>alias</key>
<value></value>
</param>
<param>
<key>fc</key>
<value>0</value>
</param>
<param>
<key>comment</key>
<value></value>
</param>
<param>
<key>ctrlpanel</key>
<value>False</value>
</param>
<param>
<key>affinity</key>
<value></value>
</param>
<param>
<key>_enabled</key>
<value>1</value>
</param>
<param>
<key>fftsize</key>
<value>1024</value>
</param>
<param>
<key>_coordinate</key>
<value>(1536, 716)</value>
</param>
<param>
<key>gui_hint</key>
<value></value>
</param>
<param>
<key>_rotation</key>
<value>0</value>
</param>
<param>
<key>grid</key>
<value>False</value>
</param>
<param>
<key>id</key>
<value>qtgui_freq_sink_x_0_1</value>
</param>
<param>
<key>legend</key>
<value>True</value>
</param>
<param>
<key>alpha1</key>
<value>1.0</value>
</param>
<param>
<key>color1</key>
<value>"blue"</value>
</param>
<param>
<key>label1</key>
<value></value>
</param>
<param>
<key>width1</key>
<value>1</value>
</param>
<param>
<key>alpha10</key>
<value>1.0</value>
</param>
<param>
<key>color10</key>
<value>"dark blue"</value>
</param>
<param>
<key>label10</key>
<value></value>
</param>
<param>
<key>width10</key>
<value>1</value>
</param>
<param>
<key>alpha2</key>
<value>1.0</value>
</param>
<param>
<key>color2</key>
<value>"red"</value>
</param>
<param>
<key>label2</key>
<value></value>
</param>
<param>
<key>width2</key>
<value>1</value>
</param>
<param>
<key>alpha3</key>
<value>1.0</value>
</param>
<param>
<key>color3</key>
<value>"green"</value>
</param>
<param>
<key>label3</key>
<value></value>
</param>
<param>
<key>width3</key>
<value>1</value>
</param>
<param>
<key>alpha4</key>
<value>1.0</value>
</param>
<param>
<key>color4</key>
<value>"black"</value>
</param>
<param>
<key>label4</key>
<value></value>
</param>
<param>
<key>width4</key>
<value>1</value>
</param>
<param>
<key>alpha5</key>
<value>1.0</value>
</param>
<param>
<key>color5</key>
<value>"cyan"</value>
</param>
<param>
<key>label5</key>
<value></value>
</param>
<param>
<key>width5</key>
<value>1</value>
</param>
<param>
<key>alpha6</key>
<value>1.0</value>
</param>
<param>
<key>color6</key>
<value>"magenta"</value>
</param>
<param>
<key>label6</key>
<value></value>
</param>
<param>
<key>width6</key>
<value>1</value>
</param>
<param>
<key>alpha7</key>
<value>1.0</value>
</param>
<param>
<key>color7</key>
<value>"yellow"</value>
</param>
<param>
<key>label7</key>
<value></value>
</param>
<param>
<key>width7</key>
<value>1</value>
</param>
<param>
<key>alpha8</key>
<value>1.0</value>
</param>
<param>
<key>color8</key>
<value>"dark red"</value>
</param>
<param>
<key>label8</key>
<value></value>
</param>
<param>
<key>width8</key>
<value>1</value>
</param>
<param>
<key>alpha9</key>
<value>1.0</value>
</param>
<param>
<key>color9</key>
<value>"dark green"</value>
</param>
<param>
<key>label9</key>
<value></value>
</param>
<param>
<key>width9</key>
<value>1</value>
</param>
<param>
<key>maxoutbuf</key>
<value>0</value>
</param>
<param>
<key>minoutbuf</key>
<value>0</value>
</param>
<param>
<key>name</key>
<value>"o1"</value>
</param>
<param>
<key>nconnections</key>
<value>1</value>
</param>
<param>
<key>showports</key>
<value>True</value>
</param>
<param>
<key>freqhalf</key>
<value>True</value>
</param>
<param>
<key>tr_chan</key>
<value>0</value>
</param>
<param>
<key>tr_level</key>
<value>0.0</value>
</param>
<param>
<key>tr_mode</key>
<value>qtgui.TRIG_MODE_FREE</value>
</param>
<param>
<key>tr_tag</key>
<value>""</value>
</param>
<param>
<key>type</key>
<value>complex</value>
</param>
<param>
<key>update_time</key>
<value>0.10</value>
</param>
<param>
<key>wintype</key>
<value>firdes.WIN_BLACKMAN_hARRIS</value>
</param>
<param>
<key>label</key>
<value>Relative Gain</value>
</param>
<param>
<key>ymax</key>
<value>10</value>
</param>
<param>
<key>ymin</key>
<value>-140</value>
</param>
<param>
<key>units</key>
<value>dB</value>
</param>
</block>
<block>
<key>qtgui_freq_sink_x</key>
<param>
<key>autoscale</key>
<value>False</value>
</param>
<param>
<key>average</key>
<value>1.0</value>
</param>
<param>
<key>axislabels</key>
<value>True</value>
</param>
<param>
<key>bw</key>
<value>samp_rate</value>
</param>
<param>
<key>alias</key>
<value></value>
</param>
<param>
<key>fc</key>
<value>0</value>
</param>
<param>
<key>comment</key>
<value></value>
</param>
<param>
<key>ctrlpanel</key>
<value>False</value>
</param>
<param>
<key>affinity</key>
<value></value>
</param>
<param>
<key>_enabled</key>
<value>1</value>
</param>
<param>
<key>fftsize</key>
<value>1024</value>
</param>
<param>
<key>_coordinate</key>
<value>(888, 1108)</value>
</param>
<param>
<key>gui_hint</key>
<value></value>
</param>
<param>
<key>_rotation</key>
<value>0</value>
</param>
<param>
<key>grid</key>
<value>False</value>
</param>
<param>
<key>id</key>
<value>qtgui_freq_sink_x_0_2</value>
</param>
<param>
<key>legend</key>
<value>True</value>
</param>
<param>
<key>alpha1</key>
<value>1.0</value>
</param>
<param>
<key>color1</key>
<value>"blue"</value>
</param>
<param>
<key>label1</key>
<value></value>
</param>
<param>
<key>width1</key>
<value>1</value>
</param>
<param>
<key>alpha10</key>
<value>1.0</value>
</param>
<param>
<key>color10</key>
<value>"dark blue"</value>
</param>
<param>
<key>label10</key>
<value></value>
</param>
<param>
<key>width10</key>
<value>1</value>
</param>
<param>
<key>alpha2</key>
<value>1.0</value>
</param>
<param>
<key>color2</key>
<value>"red"</value>
</param>
<param>
<key>label2</key>
<value></value>
</param>
<param>
<key>width2</key>
<value>1</value>
</param>
<param>
<key>alpha3</key>
<value>1.0</value>
</param>
<param>
<key>color3</key>
<value>"green"</value>
</param>
<param>
<key>label3</key>
<value></value>
</param>
<param>
<key>width3</key>
<value>1</value>
</param>
<param>
<key>alpha4</key>
<value>1.0</value>
</param>
<param>
<key>color4</key>
<value>"black"</value>
</param>
<param>
<key>label4</key>
<value></value>
</param>
<param>
<key>width4</key>
<value>1</value>
</param>
<param>
<key>alpha5</key>
<value>1.0</value>
</param>
<param>
<key>color5</key>
<value>"cyan"</value>
</param>
<param>
<key>label5</key>
<value></value>
</param>
<param>
<key>width5</key>
<value>1</value>
</param>
<param>
<key>alpha6</key>
<value>1.0</value>
</param>
<param>
<key>color6</key>
<value>"magenta"</value>
</param>
<param>
<key>label6</key>
<value></value>
</param>
<param>
<key>width6</key>
<value>1</value>
</param>
<param>
<key>alpha7</key>
<value>1.0</value>
</param>
<param>
<key>color7</key>
<value>"yellow"</value>
</param>
<param>
<key>label7</key>
<value></value>
</param>
<param>
<key>width7</key>
<value>1</value>
</param>
<param>
<key>alpha8</key>
<value>1.0</value>
</param>
<param>
<key>color8</key>
<value>"dark red"</value>
</param>
<param>
<key>label8</key>
<value></value>
</param>
<param>
<key>width8</key>
<value>1</value>
</param>
<param>
<key>alpha9</key>
<value>1.0</value>
</param>
<param>
<key>color9</key>
<value>"dark green"</value>
</param>
<param>
<key>label9</key>
<value></value>
</param>
<param>
<key>width9</key>
<value>1</value>
</param>
<param>
<key>maxoutbuf</key>
<value>0</value>
</param>
<param>
<key>minoutbuf</key>
<value>0</value>
</param>
<param>
<key>name</key>
<value>"ofdm0"</value>
</param>
<param>
<key>nconnections</key>
<value>1</value>
</param>
<param>
<key>showports</key>
<value>True</value>
</param>
<param>
<key>freqhalf</key>
<value>True</value>
</param>
<param>
<key>tr_chan</key>
<value>0</value>
</param>
<param>
<key>tr_level</key>
<value>0.0</value>
</param>
<param>
<key>tr_mode</key>
<value>qtgui.TRIG_MODE_FREE</value>
</param>
<param>
<key>tr_tag</key>
<value>""</value>
</param>
<param>
<key>type</key>
<value>complex</value>
</param>
<param>
<key>update_time</key>
<value>0.10</value>
</param>
<param>
<key>wintype</key>
<value>firdes.WIN_BLACKMAN_hARRIS</value>
</param>
<param>
<key>label</key>
<value>Relative Gain</value>
</param>
<param>
<key>ymax</key>
<value>10</value>
</param>
<param>
<key>ymin</key>
<value>-140</value>
</param>
<param>
<key>units</key>
<value>dB</value>
</param>
</block>
<block>
<key>qtgui_freq_sink_x</key>
<param>
<key>autoscale</key>
<value>False</value>
</param>
<param>
<key>average</key>
<value>1.0</value>
</param>
<param>
<key>axislabels</key>
<value>True</value>
</param>
<param>
<key>bw</key>
<value>samp_rate</value>
</param>
<param>
<key>alias</key>
<value></value>
</param>
<param>
<key>fc</key>
<value>0</value>
</param>
<param>
<key>comment</key>
<value></value>
</param>
<param>
<key>ctrlpanel</key>
<value>False</value>
</param>
<param>
<key>affinity</key>
<value></value>
</param>
<param>
<key>_enabled</key>
<value>1</value>
</param>
<param>
<key>fftsize</key>
<value>1024</value>
</param>
<param>
<key>_coordinate</key>
<value>(888, 1228)</value>
</param>
<param>
<key>gui_hint</key>
<value></value>
</param>
<param>
<key>_rotation</key>
<value>0</value>
</param>
<param>
<key>grid</key>
<value>False</value>
</param>
<param>
<key>id</key>
<value>qtgui_freq_sink_x_0_2_0</value>
</param>
<param>
<key>legend</key>
<value>True</value>
</param>
<param>
<key>alpha1</key>
<value>1.0</value>
</param>
<param>
<key>color1</key>
<value>"blue"</value>
</param>
<param>
<key>label1</key>
<value></value>
</param>
<param>
<key>width1</key>
<value>1</value>
</param>
<param>
<key>alpha10</key>
<value>1.0</value>
</param>
<param>
<key>color10</key>
<value>"dark blue"</value>
</param>
<param>
<key>label10</key>
<value></value>
</param>
<param>
<key>width10</key>
<value>1</value>
</param>
<param>
<key>alpha2</key>
<value>1.0</value>
</param>
<param>
<key>color2</key>
<value>"red"</value>
</param>
<param>
<key>label2</key>
<value></value>
</param>
<param>
<key>width2</key>
<value>1</value>
</param>
<param>
<key>alpha3</key>
<value>1.0</value>
</param>
<param>
<key>color3</key>
<value>"green"</value>
</param>
<param>
<key>label3</key>
<value></value>
</param>
<param>
<key>width3</key>
<value>1</value>
</param>
<param>
<key>alpha4</key>
<value>1.0</value>
</param>
<param>
<key>color4</key>
<value>"black"</value>
</param>
<param>
<key>label4</key>
<value></value>
</param>
<param>
<key>width4</key>
<value>1</value>
</param>
<param>
<key>alpha5</key>
<value>1.0</value>
</param>
<param>
<key>color5</key>
<value>"cyan"</value>
</param>
<param>
<key>label5</key>
<value></value>
</param>
<param>
<key>width5</key>
<value>1</value>
</param>
<param>
<key>alpha6</key>
<value>1.0</value>
</param>
<param>
<key>color6</key>
<value>"magenta"</value>
</param>
<param>
<key>label6</key>
<value></value>
</param>
<param>
<key>width6</key>
<value>1</value>
</param>
<param>
<key>alpha7</key>
<value>1.0</value>
</param>
<param>
<key>color7</key>
<value>"yellow"</value>
</param>
<param>
<key>label7</key>
<value></value>
</param>
<param>
<key>width7</key>
<value>1</value>
</param>
<param>
<key>alpha8</key>
<value>1.0</value>
</param>
<param>
<key>color8</key>
<value>"dark red"</value>
</param>
<param>
<key>label8</key>
<value></value>
</param>
<param>
<key>width8</key>
<value>1</value>
</param>
<param>
<key>alpha9</key>
<value>1.0</value>
</param>
<param>
<key>color9</key>
<value>"dark green"</value>
</param>
<param>
<key>label9</key>
<value></value>
</param>
<param>
<key>width9</key>
<value>1</value>
</param>
<param>
<key>maxoutbuf</key>
<value>0</value>
</param>
<param>
<key>minoutbuf</key>
<value>0</value>
</param>
<param>
<key>name</key>
<value>"ofdm1"</value>
</param>
<param>
<key>nconnections</key>
<value>1</value>
</param>
<param>
<key>showports</key>
<value>True</value>
</param>
<param>
<key>freqhalf</key>
<value>True</value>
</param>
<param>
<key>tr_chan</key>
<value>0</value>
</param>
<param>
<key>tr_level</key>
<value>0.0</value>
</param>
<param>
<key>tr_mode</key>
<value>qtgui.TRIG_MODE_FREE</value>
</param>
<param>
<key>tr_tag</key>
<value>""</value>
</param>
<param>
<key>type</key>
<value>complex</value>
</param>
<param>
<key>update_time</key>
<value>0.10</value>
</param>
<param>
<key>wintype</key>
<value>firdes.WIN_BLACKMAN_hARRIS</value>
</param>
<param>
<key>label</key>
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</param>
<param>
<key>ymax</key>
<value>10</value>
</param>
<param>
<key>ymin</key>
<value>-140</value>
</param>
<param>
<key>units</key>
<value>dB</value>
</param>
</block>
<connection>
<source_block_id>blocks_file_source_0_0</source_block_id>
<sink_block_id>blocks_stream_to_tagged_stream_0</sink_block_id>
<source_key>0</source_key>
<sink_key>0</sink_key>
</connection>
<connection>
<source_block_id>blocks_multiply_const_vxx_0</source_block_id>
<sink_block_id>blocks_tag_gate_0</sink_block_id>
<source_key>0</source_key>
<sink_key>0</sink_key>
</connection>
<connection>
<source_block_id>blocks_stream_to_tagged_stream_0</source_block_id>
<sink_block_id>digital_ofdm_tx_0</sink_block_id>
<source_key>0</source_key>
<sink_key>0</sink_key>
</connection>
<connection>
<source_block_id>blocks_stream_to_tagged_stream_0</source_block_id>
<sink_block_id>digital_ofdm_tx_0_0</sink_block_id>
<source_key>0</source_key>
<sink_key>0</sink_key>
</connection>
<connection>
<source_block_id>blocks_stream_to_tagged_stream_0</source_block_id>
<sink_block_id>digital_ofdm_tx_0_0_0</sink_block_id>
<source_key>0</source_key>
<sink_key>0</sink_key>
</connection>
<connection>
<source_block_id>blocks_tag_gate_0</source_block_id>
<sink_block_id>pfb_channelizer_ccf_0</sink_block_id>
<source_key>0</source_key>
<sink_key>0</sink_key>
</connection>
<connection>
<source_block_id>blocks_tag_gate_0</source_block_id>
<sink_block_id>qtgui_freq_sink_x_0</sink_block_id>
<source_key>0</source_key>
<sink_key>0</sink_key>
</connection>
<connection>
<source_block_id>blocks_throttle_0</source_block_id>
<sink_block_id>blocks_multiply_const_vxx_0</sink_block_id>
<source_key>0</source_key>
<sink_key>0</sink_key>
</connection>
<connection>
<source_block_id>digital_ofdm_rx_0</source_block_id>
<sink_block_id>blocks_file_sink_0</sink_block_id>
<source_key>0</source_key>
<sink_key>0</sink_key>
</connection>
<connection>
<source_block_id>digital_ofdm_rx_0</source_block_id>
<sink_block_id>blocks_tag_debug_0</sink_block_id>
<source_key>0</source_key>
<sink_key>0</sink_key>
</connection>
<connection>
<source_block_id>digital_ofdm_rx_0_0</source_block_id>
<sink_block_id>blocks_file_sink_0_0</sink_block_id>
<source_key>0</source_key>
<sink_key>0</sink_key>
</connection>
<connection>
<source_block_id>digital_ofdm_rx_0_0</source_block_id>
<sink_block_id>blocks_tag_debug_0_0</sink_block_id>
<source_key>0</source_key>
<sink_key>0</sink_key>
</connection>
<connection>
<source_block_id>digital_ofdm_tx_0</source_block_id>
<sink_block_id>pfb_synthesizer_ccf_0</sink_block_id>
<source_key>0</source_key>
<sink_key>0</sink_key>
</connection>
<connection>
<source_block_id>digital_ofdm_tx_0_0</source_block_id>
<sink_block_id>pfb_synthesizer_ccf_0</sink_block_id>
<source_key>0</source_key>
<sink_key>0</sink_key>
</connection>
<connection>
<source_block_id>digital_ofdm_tx_0_0</source_block_id>
<sink_block_id>qtgui_freq_sink_x_0_2</sink_block_id>
<source_key>0</source_key>
<sink_key>0</sink_key>
</connection>
<connection>
<source_block_id>digital_ofdm_tx_0_0_0</source_block_id>
<sink_block_id>pfb_synthesizer_ccf_0</sink_block_id>
<source_key>0</source_key>
<sink_key>1</sink_key>
</connection>
<connection>
<source_block_id>digital_ofdm_tx_0_0_0</source_block_id>
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<sink_key>0</sink_key>
</connection>
<connection>
<source_block_id>pfb_channelizer_ccf_0</source_block_id>
<sink_block_id>digital_ofdm_rx_0</sink_block_id>
<source_key>0</source_key>
<sink_key>0</sink_key>
</connection>
<connection>
<source_block_id>pfb_channelizer_ccf_0</source_block_id>
<sink_block_id>qtgui_freq_sink_x_0_0</sink_block_id>
<source_key>0</source_key>
<sink_key>0</sink_key>
</connection>
<connection>
<source_block_id>pfb_channelizer_ccf_0</source_block_id>
<sink_block_id>blocks_null_sink_0</sink_block_id>
<source_key>1</source_key>
<sink_key>0</sink_key>
</connection>
<connection>
<source_block_id>pfb_channelizer_ccf_0</source_block_id>
<sink_block_id>digital_ofdm_rx_0_0</sink_block_id>
<source_key>1</source_key>
<sink_key>0</sink_key>
</connection>
<connection>
<source_block_id>pfb_channelizer_ccf_0</source_block_id>
<sink_block_id>qtgui_freq_sink_x_0_1</sink_block_id>
<source_key>1</source_key>
<sink_key>0</sink_key>
</connection>
<connection>
<source_block_id>pfb_synthesizer_ccf_0</source_block_id>
<sink_block_id>blocks_throttle_0</sink_block_id>
<source_key>0</source_key>
<sink_key>0</sink_key>
</connection>
</flow_graph>
<?xml version='1.0' encoding='utf-8'?>
<?grc format='1' created='3.7.13'?>
<flow_graph>
<timestamp>Thu Jan 17 14:32:20 2019</timestamp>
<block>
<key>options</key>
<param>
<key>author</key>
<value></value>
</param>
<param>
<key>window_size</key>
<value>2000,2000</value>
</param>
<param>
<key>category</key>
<value>[GRC Hier Blocks]</value>
</param>
<param>
<key>comment</key>
<value></value>
</param>
<param>
<key>description</key>
<value></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>ofdm_rx_tx_hier_blocks_3</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>prompt</value>
</param>
<param>
<key>run</key>
<value>True</value>
</param>
<param>
<key>sizing_mode</key>
<value>fixed</value>
</param>
<param>
<key>thread_safe_setters</key>
<value></value>
</param>
<param>
<key>title</key>
<value></value>
</param>
<param>
<key>placement</key>
<value>(0,0)</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>(552, 204)</value>
</param>
<param>
<key>_rotation</key>
<value>0</value>
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<param>
<key>id</key>
<value>atten</value>
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<param>
<key>value</key>
<value>100</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>(16, 156)</value>
</param>
<param>
<key>_rotation</key>
<value>0</value>
</param>
<param>
<key>id</key>
<value>center_freq</value>
</param>
<param>
<key>value</key>
<value>920e6</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>(368, 204)</value>
</param>
<param>
<key>_rotation</key>
<value>0</value>
</param>
<param>
<key>id</key>
<value>ch_bw</value>
</param>
<param>
<key>value</key>
<value>160e3</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>(448, 204)</value>
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<param>
<key>_rotation</key>
<value>0</value>
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<param>
<key>id</key>
<value>ch_tb</value>
</param>
<param>
<key>value</key>
<value>10e3</value>
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<block>
<key>variable</key>
<param>
<key>comment</key>
<value></value>
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<param>
<key>_enabled</key>
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<param>
<key>_coordinate</key>
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<param>
<key>_rotation</key>
<value>0</value>
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<param>
<key>id</key>
<value>channels</value>
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<param>
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<value>2</value>
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<block>
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<param>
<key>comment</key>
<value></value>
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<param>
<key>_enabled</key>
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<param>
<key>_coordinate</key>
<value>(312, 12)</value>
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<param>
<key>_rotation</key>
<value>0</value>
</param>
<param>
<key>id</key>
<value>fft_len</value>
</param>
<param>
<key>value</key>
<value>128</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>(592, 68)</value>
</param>
<param>
<key>_rotation</key>
<value>0</value>
</param>
<param>
<key>id</key>
<value>header_equalizer</value>
</param>
<param>
<key>value</key>
<value>digital.ofdm_equalizer_simpledfe(fft_len, header_mod.base(), occupied_carriers, pilot_carriers, pilot_symbols)</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>(824, 12)</value>
</param>
<param>
<key>_rotation</key>
<value>0</value>
</param>
<param>
<key>id</key>
<value>header_formatter</value>
</param>
<param>
<key>value</key>
<value>digital.packet_header_ofdm(occupied_carriers, n_syms=1, len_tag_key=packet_length_tag_key, frame_len_tag_key=length_tag_key, bits_per_header_sym=header_mod.bits_per_symbol(), bits_per_payload_sym=payload_mod.bits_per_symbol(), scramble_header=False)</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>(504, 12)</value>
</param>
<param>
<key>_rotation</key>
<value>0</value>
</param>
<param>
<key>id</key>
<value>header_mod</value>
</param>
<param>
<key>value</key>
<value>digital.constellation_bpsk()</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>(376, 12)</value>
</param>
<param>
<key>_rotation</key>
<value>0</value>
</param>
<param>
<key>id</key>
<value>length_tag_key</value>
</param>
<param>
<key>value</key>
<value>"frame_len"</value>
</param>
</block>
<block>
<key>variable</key>
<param>
<key>comment</key>
<value></value>
</param>
<param>
<key>_enabled</key>
<value>1</value>
</param>
<param>
<key>_coordinate</key>
<value>(200, 52)</value>
</param>
<param>
<key>_rotation</key>
<value>0</value>
</param>
<param>
<key>id</key>
<value>min_obuffer</value>
</param>
<param>
<key>value</key>
<value>2**16</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>(528, 132)</value>
</param>
<param>
<key>_rotation</key>
<value>0</value>
</param>
<param>
<key>id</key>
<value>occupied_carriers</value>
</param>
<param>
<key>value</key>
<value>(range(-52, -49) + range(-48, -35) + range(-34, -21) + range(-20, -7) + range(-6, 0) + range(1, 7) + range(8, 21) + range(22, 35) + range(36, 49) + range(50, 52),)</value>
</param>
</block>
<block>
<key>variable</key>
<param>
<key>comment</key>
<value></value>
</param>
<param>
<key>_enabled</key>
<value>1</value>
</param>
<param>
<key>_coordinate</key>
<value>(1408, 164)</value>
</param>
<param>
<key>_rotation</key>
<value>0</value>
</param>
<param>
<key>id</key>
<value>occupied_carriers_0</value>
</param>
<param>
<key>value</key>
<value>(range(-20, -7) + range(-6, 0) + range(1, 7) + range(8, 21),)</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>(1144, 12)</value>
</param>
<param>
<key>_rotation</key>
<value>0</value>
</param>
<param>
<key>id</key>
<value>packet_len</value>
</param>
<param>
<key>value</key>
<value>96</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>(1000, 12)</value>
</param>
<param>
<key>_rotation</key>
<value>0</value>
</param>
<param>
<key>id</key>
<value>packet_length_tag_key</value>
</param>
<param>
<key>value</key>
<value>"packet_len"</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>(416, 68)</value>
</param>
<param>
<key>_rotation</key>
<value>0</value>
</param>
<param>
<key>id</key>
<value>payload_equalizer</value>
</param>
<param>
<key>value</key>
<value>digital.ofdm_equalizer_simpledfe(fft_len, payload_mod.base(), occupied_carriers, pilot_carriers, pilot_symbols, 1)</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>(664, 12)</value>
</param>
<param>
<key>_rotation</key>
<value>0</value>
</param>
<param>
<key>id</key>
<value>payload_mod</value>
</param>
<param>
<key>value</key>
<value>digital.constellation_qpsk()</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>(680, 132)</value>
</param>
<param>
<key>_rotation</key>
<value>0</value>
</param>
<param>
<key>id</key>
<value>pilot_carriers</value>
</param>
<param>
<key>value</key>
<value>((-49, -35, -21, -7, 7, 21, 35, 49),)</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>(1552, 164)</value>
</param>
<param>
<key>_rotation</key>
<value>0</value>
</param>
<param>
<key>id</key>
<value>pilot_carriers_0</value>
</param>
<param>
<key>value</key>
<value>((-21, -7,7,21),)</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>(872, 132)</value>
</param>
<param>
<key>_rotation</key>
<value>0</value>
</param>
<param>
<key>id</key>
<value>pilot_symbols</value>
</param>
<param>
<key>value</key>
<value>((1,-1,1, -1, 1, -1, -1, -1),)</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>(1672, 164)</value>
</param>
<param>
<key>_rotation</key>
<value>0</value>
</param>
<param>
<key>id</key>
<value>pilot_symbols_0</value>
</param>
<param>
<key>value</key>
<value>((1,-1,1, -1),)</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>(312, 68)</value>
</param>
<param>
<key>_rotation</key>
<value>0</value>
</param>
<param>
<key>id</key>
<value>redundant_len</value>
</param>
<param>
<key>value</key>
<value>16</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>(112, 156)</value>
</param>
<param>
<key>_rotation</key>
<value>0</value>
</param>
<param>
<key>id</key>
<value>rf_gain</value>
</param>
<param>
<key>value</key>
<value>30</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>(88, 236)</value>
</param>
<param>
<key>_rotation</key>
<value>0</value>
</param>
<param>
<key>id</key>
<value>rx_center_freq</value>
</param>
<param>
<key>value</key>
<value>900e6</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>(0, 236)</value>
</param>
<param>
<key>_rotation</key>
<value>180</value>
</param>
<param>
<key>id</key>
<value>rx_gain</value>
</param>
<param>
<key>value</key>
<value>0</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>(8, 84)</value>
</param>
<param>
<key>_rotation</key>
<value>0</value>
</param>
<param>
<key>id</key>
<value>samp_rate</value>
</param>
<param>
<key>value</key>
<value>1000000</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>(624, 204)</value>
</param>
<param>
<key>_rotation</key>
<value>0</value>
</param>
<param>
<key>id</key>
<value>syn_ftaps</value>
</param>
<param>
<key>value</key>
<value>firdes.low_pass_2(1, samp_rate, ch_bw, ch_tb, atten, firdes.WIN_HANN)</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>(768, 68)</value>
</param>
<param>
<key>_rotation</key>
<value>0</value>
</param>
<param>
<key>id</key>
<value>sync_word1</value>
</param>
<param>
<key>value</key>
<value>[0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, -1.4142135623730951, 0.0, -1.4142135623730951, 0.0, -1.4142135623730951, 0.0, -1.4142135623730951, 0.0, 1.4142135623730951, 0.0, 1.4142135623730951, 0.0, -1.4142135623730951, 0.0, -1.4142135623730951, 0.0, -1.4142135623730951, 0.0, 1.4142135623730951, 0.0, -1.4142135623730951, 0.0, 1.4142135623730951, 0.0, 1.4142135623730951, 0.0, 1.4142135623730951, 0.0, 1.4142135623730951, 0.0, 1.4142135623730951, 0.0, -1.4142135623730951, 0.0, -1.4142135623730951, 0.0, -1.4142135623730951, 0.0, -1.4142135623730951, 0.0, -1.4142135623730951, 0.0, 1.4142135623730951, 0.0, -1.4142135623730951, 0.0, -1.4142135623730951, 0.0, 1.4142135623730951, 0.0, -1.4142135623730951, 0.0, 1.4142135623730951, 0.0, -1.4142135623730951, 0.0, 1.4142135623730951, 0.0, 1.4142135623730951, 0.0, 1.4142135623730951, 0.0, -1.4142135623730951, 0.0, 1.4142135623730951, 0.0, 1.4142135623730951, 0.0, 1.4142135623730951, 0.0, -1.4142135623730951, 0.0, 1.4142135623730951, 0.0, 1.4142135623730951, 0.0, 1.4142135623730951, 0.0, 1.4142135623730951, 0.0, -1.4142135623730951, 0.0, 1.4142135623730951, 0.0, -1.4142135623730951, 0.0, -1.4142135623730951, 0.0, -1.4142135623730951, 0.0, 1.4142135623730951, 0.0, -1.4142135623730951, 0.0, 1.4142135623730951, 0.0, -1.4142135623730951, 0.0, -1.4142135623730951, 0.0, -1.4142135623730951, 0.0, -1.4142135623730951, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0]</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>(912, 68)</value>
</param>
<param>
<key>_rotation</key>
<value>0</value>
</param>
<param>
<key>id</key>
<value>sync_word2</value>
</param>
<param>
<key>value</key>
<value>[0j, 0j, 0j, 0j, 0j, 0j, 0j, 0j, 0j, 0j, 0j, 0j, (-1+0j), (1+0j), (-1+0j), (1+0j), (-1+0j), (-1+0j), (1+0j), (1+0j), (1+0j), (1+0j), (1+0j), (1+0j), (1+0j), (1+0j), (-1+0j), (-1+0j), (1+0j), (-1+0j), (-1+0j), (-1+0j), (-1+0j), (1+0j), (-1+0j), (1+0j), (-1+0j), (-1+0j), (-1+0j), (1+0j), (-1+0j), (1+0j), (-1+0j), (1+0j), (-1+0j), (1+0j), (1+0j), (-1+0j), (1+0j), (-1+0j), (-1+0j), (-1+0j), (-1+0j), (-1+0j), (-1+0j), (-1+0j), (-1+0j), (-1+0j), (-1+0j), (-1+0j), (1+0j), (1+0j), (-1+0j), (-1+0j), 0j, (1+0j), (-1+0j), (1+0j), (1+0j), (1+0j), (-1+0j), (1+0j), (1+0j), (1+0j), (-1+0j), (1+0j), (1+0j), (1+0j), (1+0j), (-1+0j), (1+0j), (-1+0j), (-1+0j), (-1+0j), (1+0j), (-1+0j), (1+0j), (-1+0j), (-1+0j), (-1+0j), (-1+0j), (-1+0j), (-1+0j), (-1+0j), (-1+0j), (1+0j), (1+0j), (-1+0j), (-1+0j), (-1+0j), (1+0j), (-1+0j), (1+0j), (1+0j), (1+0j), (1+0j), (1+0j), (-1+0j), (-1+0j), (-1+0j), (-1+0j), (-1+0j), (1+0j), (-1+0j), (-1+0j), (1+0j), 0j, 0j, 0j, 0j, 0j, 0j, 0j, 0j, 0j, 0j, 0j, 0j]</value>
</param>
</block>
<block>
<key>blocks_file_source</key>
<param>
<key>begin_tag</key>
<value>pmt.PMT_NIL</value>
</param>
<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>file</key>
<value>/home/rcetin/sample_vid_2.mp4</value>
</param>
<param>
<key>_coordinate</key>
<value>(40, 748)</value>
</param>
<param>
<key>_rotation</key>
<value>0</value>
</param>
<param>
<key>id</key>
<value>blocks_file_source_0_0</value>
</param>
<param>
<key>maxoutbuf</key>
<value>0</value>
</param>
<param>
<key>minoutbuf</key>
<value>0</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>
</block>
<block>
<key>blocks_multiply_const_vxx</key>
<param>
<key>alias</key>
<value></value>
</param>
<param>
<key>comment</key>
<value></value>
</param>
<param>
<key>const</key>
<value>0.05</value>
</param>
<param>
<key>affinity</key>
<value></value>
</param>
<param>
<key>_enabled</key>
<value>1</value>
</param>
<param>
<key>_coordinate</key>
<value>(864, 908)</value>
</param>
<param>
<key>_rotation</key>
<value>0</value>
</param>
<param>
<key>id</key>
<value>blocks_multiply_const_vxx_0</value>
</param>
<param>
<key>type</key>
<value>complex</value>
</param>
<param>
<key>maxoutbuf</key>
<value>0</value>
</param>
<param>
<key>minoutbuf</key>
<value>min_obuffer</value>
</param>
<param>
<key>vlen</key>
<value>1</value>
</param>
</block>
<block>
<key>blocks_stream_to_tagged_stream</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>(80, 884)</value>
</param>
<param>
<key>_rotation</key>
<value>0</value>
</param>
<param>
<key>id</key>
<value>blocks_stream_to_tagged_stream_0</value>
</param>
<param>
<key>len_tag_key</key>
<value>packet_length_tag_key</value>
</param>
<param>
<key>maxoutbuf</key>
<value>0</value>
</param>
<param>
<key>minoutbuf</key>
<value>0</value>
</param>
<param>
<key>packet_len</key>
<value>packet_len</value>
</param>
<param>
<key>type</key>
<value>byte</value>
</param>
<param>
<key>vlen</key>
<value>1</value>
</param>
</block>
<block>
<key>blocks_tag_debug</key>
<param>
<key>alias</key>
<value></value>
</param>
<param>
<key>comment</key>
<value></value>
</param>
<param>
<key>affinity</key>
<value></value>
</param>
<param>
<key>display</key>
<value>True</value>
</param>
<param>
<key>_enabled</key>
<value>True</value>
</param>
<param>
<key>_coordinate</key>
<value>(1120, 804)</value>
</param>
<param>
<key>_rotation</key>
<value>0</value>
</param>
<param>
<key>id</key>
<value>blocks_tag_debug_0</value>
</param>
<param>
<key>type</key>
<value>complex</value>
</param>
<param>
<key>filter</key>
<value>""</value>
</param>
<param>
<key>name</key>
<value></value>
</param>
<param>
<key>num_inputs</key>
<value>1</value>
</param>
<param>
<key>vlen</key>
<value>1</value>
</param>
</block>
<block>
<key>blocks_tag_gate</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>(864, 812)</value>
</param>
<param>
<key>_rotation</key>
<value>0</value>
</param>
<param>
<key>id</key>
<value>blocks_tag_gate_0</value>
</param>
<param>
<key>type</key>
<value>complex</value>
</param>
<param>
<key>maxoutbuf</key>
<value>0</value>
</param>
<param>
<key>minoutbuf</key>
<value>min_obuffer</value>
</param>
<param>
<key>propagate_tags</key>
<value>True</value>
</param>
<param>
<key>single_key</key>
<value>""</value>
</param>
<param>
<key>vlen</key>
<value>1</value>
</param>
</block>
<block>
<key>digital_ofdm_tx</key>
<param>
<key>alias</key>
<value></value>
</param>
<param>
<key>comment</key>
<value></value>
</param>
<param>
<key>affinity</key>
<value></value>
</param>
<param>
<key>cp_len</key>
<value>fft_len/4</value>
</param>
<param>
<key>_enabled</key>
<value>0</value>
</param>
<param>
<key>fft_len</key>
<value>fft_len</value>
</param>
<param>
<key>_coordinate</key>
<value>(376, 740)</value>
</param>
<param>
<key>_rotation</key>
<value>0</value>
</param>
<param>
<key>header_mod</key>
<value>"BPSK"</value>
</param>
<param>
<key>id</key>
<value>digital_ofdm_tx_0</value>
</param>
<param>
<key>packet_len_key</key>
<value>packet_length_tag_key</value>
</param>
<param>
<key>log</key>
<value>False</value>
</param>
<param>
<key>maxoutbuf</key>
<value>0</value>
</param>
<param>
<key>minoutbuf</key>
<value>min_obuffer</value>
</param>
<param>
<key>occupied_carriers</key>
<value>occupied_carriers_0</value>
</param>
<param>
<key>payload_mod</key>
<value>"QPSK"</value>
</param>
<param>
<key>pilot_carriers</key>
<value>pilot_carriers_0</value>
</param>
<param>
<key>pilot_symbols</key>
<value>pilot_symbols_0</value>
</param>
<param>
<key>rolloff</key>
<value>fft_len/8</value>
</param>
<param>
<key>scramble_bits</key>
<value>False</value>
</param>
<param>
<key>sync_word1</key>
<value>()</value>
</param>
<param>
<key>sync_word2</key>
<value>()</value>
</param>
</block>
<block>
<key>digital_ofdm_tx</key>
<param>
<key>alias</key>
<value></value>
</param>
<param>
<key>comment</key>
<value></value>
</param>
<param>
<key>affinity</key>
<value></value>
</param>
<param>
<key>cp_len</key>
<value>fft_len/4</value>
</param>
<param>
<key>_enabled</key>
<value>1</value>
</param>
<param>
<key>fft_len</key>
<value>fft_len</value>
</param>
<param>
<key>_coordinate</key>
<value>(376, 924)</value>
</param>
<param>
<key>_rotation</key>
<value>0</value>
</param>
<param>
<key>header_mod</key>
<value>"BPSK"</value>
</param>
<param>
<key>id</key>
<value>digital_ofdm_tx_0_0</value>
</param>
<param>
<key>packet_len_key</key>
<value>packet_length_tag_key</value>
</param>
<param>
<key>log</key>
<value>False</value>
</param>
<param>
<key>maxoutbuf</key>
<value>0</value>
</param>
<param>
<key>minoutbuf</key>
<value>min_obuffer</value>
</param>
<param>
<key>occupied_carriers</key>
<value>occupied_carriers_0</value>
</param>
<param>
<key>payload_mod</key>
<value>"QPSK"</value>
</param>
<param>
<key>pilot_carriers</key>
<value>pilot_carriers_0</value>
</param>
<param>
<key>pilot_symbols</key>
<value>pilot_symbols_0</value>
</param>
<param>
<key>rolloff</key>
<value>fft_len/8</value>
</param>
<param>
<key>scramble_bits</key>
<value>False</value>
</param>
<param>
<key>sync_word1</key>
<value>()</value>
</param>
<param>
<key>sync_word2</key>
<value>()</value>
</param>
</block>
<block>
<key>digital_ofdm_tx</key>
<param>
<key>alias</key>
<value></value>
</param>
<param>
<key>comment</key>
<value></value>
</param>
<param>
<key>affinity</key>
<value></value>
</param>
<param>
<key>cp_len</key>
<value>fft_len/4</value>
</param>
<param>
<key>_enabled</key>
<value>0</value>
</param>
<param>
<key>fft_len</key>
<value>fft_len</value>
</param>
<param>
<key>_coordinate</key>
<value>(376, 1108)</value>
</param>
<param>
<key>_rotation</key>
<value>0</value>
</param>
<param>
<key>header_mod</key>
<value>"BPSK"</value>
</param>
<param>
<key>id</key>
<value>digital_ofdm_tx_0_0_0</value>
</param>
<param>
<key>packet_len_key</key>
<value>packet_length_tag_key</value>
</param>
<param>
<key>log</key>
<value>False</value>
</param>
<param>
<key>maxoutbuf</key>
<value>0</value>
</param>
<param>
<key>minoutbuf</key>
<value>min_obuffer</value>
</param>
<param>
<key>occupied_carriers</key>
<value>occupied_carriers_0</value>
</param>
<param>
<key>payload_mod</key>
<value>"QPSK"</value>
</param>
<param>
<key>pilot_carriers</key>
<value>pilot_carriers_0</value>
</param>
<param>
<key>pilot_symbols</key>
<value>pilot_symbols_0</value>
</param>
<param>
<key>rolloff</key>
<value>fft_len/8</value>
</param>
<param>
<key>scramble_bits</key>
<value>False</value>
</param>
<param>
<key>sync_word1</key>
<value>()</value>
</param>
<param>
<key>sync_word2</key>
<value>()</value>
</param>
</block>
<block>
<key>import</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>(176, 12)</value>
</param>
<param>
<key>_rotation</key>
<value>0</value>
</param>
<param>
<key>id</key>
<value>import_1</value>
</param>
<param>
<key>import</key>
<value>from gnuradio.digital.utils import tagged_streams</value>
</param>
</block>
<block>
<key>pfb_synthesizer_ccf</key>
<param>
<key>twox</key>
<value>False</value>
</param>
<param>
<key>alias</key>
<value></value>
</param>
<param>
<key>bus_conns</key>
<value>[[0,],]</value>
</param>
<param>
<key>ch_map</key>
<value>[0,1]</value>
</param>
<param>
<key>numchans</key>
<value>2</value>
</param>
<param>
<key>comment</key>
<value></value>
</param>
<param>
<key>connections</key>
<value>1</value>
</param>
<param>
<key>affinity</key>
<value></value>
</param>
<param>
<key>_enabled</key>
<value>1</value>
</param>
<param>
<key>_coordinate</key>
<value>(864, 988)</value>
</param>
<param>
<key>_rotation</key>
<value>0</value>
</param>
<param>
<key>id</key>
<value>pfb_synthesizer_ccf_0</value>
</param>
<param>
<key>maxoutbuf</key>
<value>0</value>
</param>
<param>
<key>minoutbuf</key>
<value>0</value>
</param>
<param>
<key>samp_delay</key>
<value>0</value>
</param>
<param>
<key>taps</key>
<value>syn_ftaps</value>
</param>
</block>
<block>
<key>uhd_usrp_sink</key>
<param>
<key>alias</key>
<value></value>
</param>
<param>
<key>ant0</key>
<value>TX/RX</value>
</param>
<param>
<key>bw0</key>
<value>0</value>
</param>
<param>
<key>center_freq0</key>
<value>center_freq</value>
</param>
<param>
<key>norm_gain0</key>
<value>False</value>
</param>
<param>
<key>gain0</key>
<value>rf_gain</value>
</param>
<param>
<key>ant10</key>
<value></value>
</param>
<param>
<key>bw10</key>
<value>0</value>
</param>
<param>
<key>center_freq10</key>
<value>0</value>
</param>
<param>
<key>norm_gain10</key>
<value>False</value>
</param>
<param>
<key>gain10</key>
<value>0</value>
</param>
<param>
<key>ant11</key>
<value></value>
</param>
<param>
<key>bw11</key>
<value>0</value>
</param>
<param>
<key>center_freq11</key>
<value>0</value>
</param>
<param>
<key>norm_gain11</key>
<value>False</value>
</param>
<param>
<key>gain11</key>
<value>0</value>
</param>
<param>
<key>ant12</key>
<value></value>
</param>
<param>
<key>bw12</key>
<value>0</value>
</param>
<param>
<key>center_freq12</key>
<value>0</value>
</param>
<param>
<key>norm_gain12</key>
<value>False</value>
</param>
<param>
<key>gain12</key>
<value>0</value>
</param>
<param>
<key>ant13</key>
<value></value>
</param>
<param>
<key>bw13</key>
<value>0</value>
</param>
<param>
<key>center_freq13</key>
<value>0</value>
</param>
<param>
<key>norm_gain13</key>
<value>False</value>
</param>
<param>
<key>gain13</key>
<value>0</value>
</param>
<param>
<key>ant14</key>
<value></value>
</param>
<param>
<key>bw14</key>
<value>0</value>
</param>
<param>
<key>center_freq14</key>
<value>0</value>
</param>
<param>
<key>norm_gain14</key>
<value>False</value>
</param>
<param>
<key>gain14</key>
<value>0</value>
</param>
<param>
<key>ant15</key>
<value></value>
</param>
<param>
<key>bw15</key>
<value>0</value>
</param>
<param>
<key>center_freq15</key>
<value>0</value>
</param>
<param>
<key>norm_gain15</key>
<value>False</value>
</param>
<param>
<key>gain15</key>
<value>0</value>
</param>
<param>
<key>ant16</key>
<value></value>
</param>
<param>
<key>bw16</key>
<value>0</value>
</param>
<param>
<key>center_freq16</key>
<value>0</value>
</param>
<param>
<key>norm_gain16</key>
<value>False</value>
</param>
<param>
<key>gain16</key>
<value>0</value>
</param>
<param>
<key>ant17</key>
<value></value>
</param>
<param>
<key>bw17</key>
<value>0</value>
</param>
<param>
<key>center_freq17</key>
<value>0</value>
</param>
<param>
<key>norm_gain17</key>
<value>False</value>
</param>
<param>
<key>gain17</key>
<value>0</value>
</param>
<param>
<key>ant18</key>
<value></value>
</param>
<param>
<key>bw18</key>
<value>0</value>
</param>
<param>
<key>center_freq18</key>
<value>0</value>
</param>
<param>
<key>norm_gain18</key>
<value>False</value>
</param>
<param>
<key>gain18</key>
<value>0</value>
</param>
<param>
<key>ant19</key>
<value></value>
</param>
<param>
<key>bw19</key>
<value>0</value>
</param>
<param>
<key>center_freq19</key>
<value>0</value>
</param>
<param>
<key>norm_gain19</key>
<value>False</value>
</param>
<param>
<key>gain19</key>
<value>0</value>
</param>
<param>
<key>ant1</key>
<value></value>
</param>
<param>
<key>bw1</key>
<value>0</value>
</param>
<param>
<key>center_freq1</key>
<value>0</value>
</param>
<param>
<key>norm_gain1</key>
<value>False</value>
</param>
<param>
<key>gain1</key>
<value>0</value>
</param>
<param>
<key>ant20</key>
<value></value>
</param>
<param>
<key>bw20</key>
<value>0</value>
</param>
<param>
<key>center_freq20</key>
<value>0</value>
</param>
<param>
<key>norm_gain20</key>
<value>False</value>
</param>
<param>
<key>gain20</key>
<value>0</value>
</param>
<param>
<key>ant21</key>
<value></value>
</param>
<param>
<key>bw21</key>
<value>0</value>
</param>
<param>
<key>center_freq21</key>
<value>0</value>
</param>
<param>
<key>norm_gain21</key>
<value>False</value>
</param>
<param>
<key>gain21</key>
<value>0</value>
</param>
<param>
<key>ant22</key>
<value></value>
</param>
<param>
<key>bw22</key>
<value>0</value>
</param>
<param>
<key>center_freq22</key>
<value>0</value>
</param>
<param>
<key>norm_gain22</key>
<value>False</value>
</param>
<param>
<key>gain22</key>
<value>0</value>
</param>
<param>
<key>ant23</key>
<value></value>
</param>
<param>
<key>bw23</key>
<value>0</value>
</param>
<param>
<key>center_freq23</key>
<value>0</value>
</param>
<param>
<key>norm_gain23</key>
<value>False</value>
</param>
<param>
<key>gain23</key>
<value>0</value>
</param>
<param>
<key>ant24</key>
<value></value>
</param>
<param>
<key>bw24</key>
<value>0</value>
</param>
<param>
<key>center_freq24</key>
<value>0</value>
</param>
<param>
<key>norm_gain24</key>
<value>False</value>
</param>
<param>
<key>gain24</key>
<value>0</value>
</param>
<param>
<key>ant25</key>
<value></value>
</param>
<param>
<key>bw25</key>
<value>0</value>
</param>
<param>
<key>center_freq25</key>
<value>0</value>
</param>
<param>
<key>norm_gain25</key>
<value>False</value>
</param>
<param>
<key>gain25</key>
<value>0</value>
</param>
<param>
<key>ant26</key>
<value></value>
</param>
<param>
<key>bw26</key>
<value>0</value>
</param>
<param>
<key>center_freq26</key>
<value>0</value>
</param>
<param>
<key>norm_gain26</key>
<value>False</value>
</param>
<param>
<key>gain26</key>
<value>0</value>
</param>
<param>
<key>ant27</key>
<value></value>
</param>
<param>
<key>bw27</key>
<value>0</value>
</param>
<param>
<key>center_freq27</key>
<value>0</value>
</param>
<param>
<key>norm_gain27</key>
<value>False</value>
</param>
<param>
<key>gain27</key>
<value>0</value>
</param>
<param>
<key>ant28</key>
<value></value>
</param>
<param>
<key>bw28</key>
<value>0</value>
</param>
<param>
<key>center_freq28</key>
<value>0</value>
</param>
<param>
<key>norm_gain28</key>
<value>False</value>
</param>
<param>
<key>gain28</key>
<value>0</value>
</param>
<param>
<key>ant29</key>
<value></value>
</param>
<param>
<key>bw29</key>
<value>0</value>
</param>
<param>
<key>center_freq29</key>
<value>0</value>
</param>
<param>
<key>norm_gain29</key>
<value>False</value>
</param>
<param>
<key>gain29</key>
<value>0</value>
</param>
<param>
<key>ant2</key>
<value></value>
</param>
<param>
<key>bw2</key>
<value>0</value>
</param>
<param>
<key>center_freq2</key>
<value>0</value>
</param>
<param>
<key>norm_gain2</key>
<value>False</value>
</param>
<param>
<key>gain2</key>
<value>0</value>
</param>
<param>
<key>ant30</key>
<value></value>
</param>
<param>
<key>bw30</key>
<value>0</value>
</param>
<param>
<key>center_freq30</key>
<value>0</value>
</param>
<param>
<key>norm_gain30</key>
<value>False</value>
</param>
<param>
<key>gain30</key>
<value>0</value>
</param>
<param>
<key>ant31</key>
<value></value>
</param>
<param>
<key>bw31</key>
<value>0</value>
</param>
<param>
<key>center_freq31</key>
<value>0</value>
</param>
<param>
<key>norm_gain31</key>
<value>False</value>
</param>
<param>
<key>gain31</key>
<value>0</value>
</param>
<param>
<key>ant3</key>
<value></value>
</param>
<param>
<key>bw3</key>
<value>0</value>
</param>
<param>
<key>center_freq3</key>
<value>0</value>
</param>
<param>
<key>norm_gain3</key>
<value>False</value>
</param>
<param>
<key>gain3</key>
<value>0</value>
</param>
<param>
<key>ant4</key>
<value></value>
</param>
<param>
<key>bw4</key>
<value>0</value>
</param>
<param>
<key>center_freq4</key>
<value>0</value>
</param>
<param>
<key>norm_gain4</key>
<value>False</value>
</param>
<param>
<key>gain4</key>
<value>0</value>
</param>
<param>
<key>ant5</key>
<value></value>
</param>
<param>
<key>bw5</key>
<value>0</value>
</param>
<param>
<key>center_freq5</key>
<value>0</value>
</param>
<param>
<key>norm_gain5</key>
<value>False</value>
</param>
<param>
<key>gain5</key>
<value>0</value>
</param>
<param>
<key>ant6</key>
<value></value>
</param>
<param>
<key>bw6</key>
<value>0</value>
</param>
<param>
<key>center_freq6</key>
<value>0</value>
</param>
<param>
<key>norm_gain6</key>
<value>False</value>
</param>
<param>
<key>gain6</key>
<value>0</value>
</param>
<param>
<key>ant7</key>
<value></value>
</param>
<param>
<key>bw7</key>
<value>0</value>
</param>
<param>
<key>center_freq7</key>
<value>0</value>
</param>
<param>
<key>norm_gain7</key>
<value>False</value>
</param>
<param>
<key>gain7</key>
<value>0</value>
</param>
<param>
<key>ant8</key>
<value></value>
</param>
<param>
<key>bw8</key>
<value>0</value>
</param>
<param>
<key>center_freq8</key>
<value>0</value>
</param>
<param>
<key>norm_gain8</key>
<value>False</value>
</param>
<param>
<key>gain8</key>
<value>0</value>
</param>
<param>
<key>ant9</key>
<value></value>
</param>
<param>
<key>bw9</key>
<value>0</value>
</param>
<param>
<key>center_freq9</key>
<value>0</value>
</param>
<param>
<key>norm_gain9</key>
<value>False</value>
</param>
<param>
<key>gain9</key>
<value>0</value>
</param>
<param>
<key>clock_rate</key>
<value>0.0</value>
</param>
<param>
<key>comment</key>
<value></value>
</param>
<param>
<key>affinity</key>
<value></value>
</param>
<param>
<key>dev_addr</key>
<value>""</value>
</param>
<param>
<key>dev_args</key>
<value>"addr=192.168.0.12"</value>
</param>
<param>
<key>_enabled</key>
<value>1</value>
</param>
<param>
<key>_coordinate</key>
<value>(864, 644)</value>
</param>
<param>
<key>_rotation</key>
<value>0</value>
</param>
<param>
<key>id</key>
<value>uhd_usrp_sink_0</value>
</param>
<param>
<key>type</key>
<value>fc32</value>
</param>
<param>
<key>clock_source0</key>
<value></value>
</param>
<param>
<key>sd_spec0</key>
<value></value>
</param>
<param>
<key>time_source0</key>
<value></value>
</param>
<param>
<key>clock_source1</key>
<value></value>
</param>
<param>
<key>sd_spec1</key>
<value></value>
</param>
<param>
<key>time_source1</key>
<value></value>
</param>
<param>
<key>clock_source2</key>
<value></value>
</param>
<param>
<key>sd_spec2</key>
<value></value>
</param>
<param>
<key>time_source2</key>
<value></value>
</param>
<param>
<key>clock_source3</key>
<value></value>
</param>
<param>
<key>sd_spec3</key>
<value></value>
</param>
<param>
<key>time_source3</key>
<value></value>
</param>
<param>
<key>clock_source4</key>
<value></value>
</param>
<param>
<key>sd_spec4</key>
<value></value>
</param>
<param>
<key>time_source4</key>
<value></value>
</param>
<param>
<key>clock_source5</key>
<value></value>
</param>
<param>
<key>sd_spec5</key>
<value></value>
</param>
<param>
<key>time_source5</key>
<value></value>
</param>
<param>
<key>clock_source6</key>
<value></value>
</param>
<param>
<key>sd_spec6</key>
<value></value>
</param>
<param>
<key>time_source6</key>
<value></value>
</param>
<param>
<key>clock_source7</key>
<value></value>
</param>
<param>
<key>sd_spec7</key>
<value></value>
</param>
<param>
<key>time_source7</key>
<value></value>
</param>
<param>
<key>nchan</key>
<value>1</value>
</param>
<param>
<key>num_mboards</key>
<value>1</value>
</param>
<param>
<key>samp_rate</key>
<value>samp_rate</value>
</param>
<param>
<key>hide_cmd_port</key>
<value>False</value>
</param>
<param>
<key>hide_lo_controls</key>
<value>True</value>
</param>
<param>
<key>stream_args</key>
<value></value>
</param>
<param>
<key>stream_chans</key>
<value>[]</value>
</param>
<param>
<key>sync</key>
<value></value>
</param>
<param>
<key>len_tag_name</key>
<value>packet_len</value>
</param>
<param>
<key>otw</key>
<value></value>
</param>
</block>
<block>
<key>uhd_usrp_source</key>
<param>
<key>alias</key>
<value></value>
</param>
<param>
<key>ant0</key>
<value>RX2</value>
</param>
<param>
<key>bw0</key>
<value>0</value>
</param>
<param>
<key>center_freq0</key>
<value>rx_center_freq</value>
</param>
<param>
<key>dc_offs_enb0</key>
<value>""</value>
</param>
<param>
<key>iq_imbal_enb0</key>
<value>""</value>
</param>
<param>
<key>norm_gain0</key>
<value>False</value>
</param>
<param>
<key>gain0</key>
<value>rx_gain</value>
</param>
<param>
<key>lo_export0</key>
<value>False</value>
</param>
<param>
<key>lo_source0</key>
<value>internal</value>
</param>
<param>
<key>ant10</key>
<value></value>
</param>
<param>
<key>bw10</key>
<value>0</value>
</param>
<param>
<key>center_freq10</key>
<value>0</value>
</param>
<param>
<key>dc_offs_enb10</key>
<value>""</value>
</param>
<param>
<key>iq_imbal_enb10</key>
<value>""</value>
</param>
<param>
<key>norm_gain10</key>
<value>False</value>
</param>
<param>
<key>gain10</key>
<value>0</value>
</param>
<param>
<key>lo_export10</key>
<value>False</value>
</param>
<param>
<key>lo_source10</key>
<value>internal</value>
</param>
<param>
<key>ant11</key>
<value></value>
</param>
<param>
<key>bw11</key>
<value>0</value>
</param>
<param>
<key>center_freq11</key>
<value>0</value>
</param>
<param>
<key>dc_offs_enb11</key>
<value>""</value>
</param>
<param>
<key>iq_imbal_enb11</key>
<value>""</value>
</param>
<param>
<key>norm_gain11</key>
<value>False</value>
</param>
<param>
<key>gain11</key>
<value>0</value>
</param>
<param>
<key>lo_export11</key>
<value>False</value>
</param>
<param>
<key>lo_source11</key>
<value>internal</value>
</param>
<param>
<key>ant12</key>
<value></value>
</param>
<param>
<key>bw12</key>
<value>0</value>
</param>
<param>
<key>center_freq12</key>
<value>0</value>
</param>
<param>
<key>dc_offs_enb12</key>
<value>""</value>
</param>
<param>
<key>iq_imbal_enb12</key>
<value>""</value>
</param>
<param>
<key>norm_gain12</key>
<value>False</value>
</param>
<param>
<key>gain12</key>
<value>0</value>
</param>
<param>
<key>lo_export12</key>
<value>False</value>
</param>
<param>
<key>lo_source12</key>
<value>internal</value>
</param>
<param>
<key>ant13</key>
<value></value>
</param>
<param>
<key>bw13</key>
<value>0</value>
</param>
<param>
<key>center_freq13</key>
<value>0</value>
</param>
<param>
<key>dc_offs_enb13</key>
<value>""</value>
</param>
<param>
<key>iq_imbal_enb13</key>
<value>""</value>
</param>
<param>
<key>norm_gain13</key>
<value>False</value>
</param>
<param>
<key>gain13</key>
<value>0</value>
</param>
<param>
<key>lo_export13</key>
<value>False</value>
</param>
<param>
<key>lo_source13</key>
<value>internal</value>
</param>
<param>
<key>ant14</key>
<value></value>
</param>
<param>
<key>bw14</key>
<value>0</value>
</param>
<param>
<key>center_freq14</key>
<value>0</value>
</param>
<param>
<key>dc_offs_enb14</key>
<value>""</value>
</param>
<param>
<key>iq_imbal_enb14</key>
<value>""</value>
</param>
<param>
<key>norm_gain14</key>
<value>False</value>
</param>
<param>
<key>gain14</key>
<value>0</value>
</param>
<param>
<key>lo_export14</key>
<value>False</value>
</param>
<param>
<key>lo_source14</key>
<value>internal</value>
</param>
<param>
<key>ant15</key>
<value></value>
</param>
<param>
<key>bw15</key>
<value>0</value>
</param>
<param>
<key>center_freq15</key>
<value>0</value>
</param>
<param>
<key>dc_offs_enb15</key>
<value>""</value>
</param>
<param>
<key>iq_imbal_enb15</key>
<value>""</value>
</param>
<param>
<key>norm_gain15</key>
<value>False</value>
</param>
<param>
<key>gain15</key>
<value>0</value>
</param>
<param>
<key>lo_export15</key>
<value>False</value>
</param>
<param>
<key>lo_source15</key>
<value>internal</value>
</param>
<param>
<key>ant16</key>
<value></value>
</param>
<param>
<key>bw16</key>
<value>0</value>
</param>
<param>
<key>center_freq16</key>
<value>0</value>
</param>
<param>
<key>dc_offs_enb16</key>
<value>""</value>
</param>
<param>
<key>iq_imbal_enb16</key>
<value>""</value>
</param>
<param>
<key>norm_gain16</key>
<value>False</value>
</param>
<param>
<key>gain16</key>
<value>0</value>
</param>
<param>
<key>lo_export16</key>
<value>False</value>
</param>
<param>
<key>lo_source16</key>
<value>internal</value>
</param>
<param>
<key>ant17</key>
<value></value>
</param>
<param>
<key>bw17</key>
<value>0</value>
</param>
<param>
<key>center_freq17</key>
<value>0</value>
</param>
<param>
<key>dc_offs_enb17</key>
<value>""</value>
</param>
<param>
<key>iq_imbal_enb17</key>
<value>""</value>
</param>
<param>
<key>norm_gain17</key>
<value>False</value>
</param>
<param>
<key>gain17</key>
<value>0</value>
</param>
<param>
<key>lo_export17</key>
<value>False</value>
</param>
<param>
<key>lo_source17</key>
<value>internal</value>
</param>
<param>
<key>ant18</key>
<value></value>
</param>
<param>
<key>bw18</key>
<value>0</value>
</param>
<param>
<key>center_freq18</key>
<value>0</value>
</param>
<param>
<key>dc_offs_enb18</key>
<value>""</value>
</param>
<param>
<key>iq_imbal_enb18</key>
<value>""</value>
</param>
<param>
<key>norm_gain18</key>
<value>False</value>
</param>
<param>
<key>gain18</key>
<value>0</value>
</param>
<param>
<key>lo_export18</key>
<value>False</value>
</param>
<param>
<key>lo_source18</key>
<value>internal</value>
</param>
<param>
<key>ant19</key>
<value></value>
</param>
<param>
<key>bw19</key>
<value>0</value>
</param>
<param>
<key>center_freq19</key>
<value>0</value>
</param>
<param>
<key>dc_offs_enb19</key>
<value>""</value>
</param>
<param>
<key>iq_imbal_enb19</key>
<value>""</value>
</param>
<param>
<key>norm_gain19</key>
<value>False</value>
</param>
<param>
<key>gain19</key>
<value>0</value>
</param>
<param>
<key>lo_export19</key>
<value>False</value>
</param>
<param>
<key>lo_source19</key>
<value>internal</value>
</param>
<param>
<key>ant1</key>
<value></value>
</param>
<param>
<key>bw1</key>
<value>0</value>
</param>
<param>
<key>center_freq1</key>
<value>0</value>
</param>
<param>
<key>dc_offs_enb1</key>
<value>""</value>
</param>
<param>
<key>iq_imbal_enb1</key>
<value>""</value>
</param>
<param>
<key>norm_gain1</key>
<value>False</value>
</param>
<param>
<key>gain1</key>
<value>0</value>
</param>
<param>
<key>lo_export1</key>
<value>False</value>
</param>
<param>
<key>lo_source1</key>
<value>internal</value>
</param>
<param>
<key>ant20</key>
<value></value>
</param>
<param>
<key>bw20</key>
<value>0</value>
</param>
<param>
<key>center_freq20</key>
<value>0</value>
</param>
<param>
<key>dc_offs_enb20</key>
<value>""</value>
</param>
<param>
<key>iq_imbal_enb20</key>
<value>""</value>
</param>
<param>
<key>norm_gain20</key>
<value>False</value>
</param>
<param>
<key>gain20</key>
<value>0</value>
</param>
<param>
<key>lo_export20</key>
<value>False</value>
</param>
<param>
<key>lo_source20</key>
<value>internal</value>
</param>
<param>
<key>ant21</key>
<value></value>
</param>
<param>
<key>bw21</key>
<value>0</value>
</param>
<param>
<key>center_freq21</key>
<value>0</value>
</param>
<param>
<key>dc_offs_enb21</key>
<value>""</value>
</param>
<param>
<key>iq_imbal_enb21</key>
<value>""</value>
</param>
<param>
<key>norm_gain21</key>
<value>False</value>
</param>
<param>
<key>gain21</key>
<value>0</value>
</param>
<param>
<key>lo_export21</key>
<value>False</value>
</param>
<param>
<key>lo_source21</key>
<value>internal</value>
</param>
<param>
<key>ant22</key>
<value></value>
</param>
<param>
<key>bw22</key>
<value>0</value>
</param>
<param>
<key>center_freq22</key>
<value>0</value>
</param>
<param>
<key>dc_offs_enb22</key>
<value>""</value>
</param>
<param>
<key>iq_imbal_enb22</key>
<value>""</value>
</param>
<param>
<key>norm_gain22</key>
<value>False</value>
</param>
<param>
<key>gain22</key>
<value>0</value>
</param>
<param>
<key>lo_export22</key>
<value>False</value>
</param>
<param>
<key>lo_source22</key>
<value>internal</value>
</param>
<param>
<key>ant23</key>
<value></value>
</param>
<param>
<key>bw23</key>
<value>0</value>
</param>
<param>
<key>center_freq23</key>
<value>0</value>
</param>
<param>
<key>dc_offs_enb23</key>
<value>""</value>
</param>
<param>
<key>iq_imbal_enb23</key>
<value>""</value>
</param>
<param>
<key>norm_gain23</key>
<value>False</value>
</param>
<param>
<key>gain23</key>
<value>0</value>
</param>
<param>
<key>lo_export23</key>
<value>False</value>
</param>
<param>
<key>lo_source23</key>
<value>internal</value>
</param>
<param>
<key>ant24</key>
<value></value>
</param>
<param>
<key>bw24</key>
<value>0</value>
</param>
<param>
<key>center_freq24</key>
<value>0</value>
</param>
<param>
<key>dc_offs_enb24</key>
<value>""</value>
</param>
<param>
<key>iq_imbal_enb24</key>
<value>""</value>
</param>
<param>
<key>norm_gain24</key>
<value>False</value>
</param>
<param>
<key>gain24</key>
<value>0</value>
</param>
<param>
<key>lo_export24</key>
<value>False</value>
</param>
<param>
<key>lo_source24</key>
<value>internal</value>
</param>
<param>
<key>ant25</key>
<value></value>
</param>
<param>
<key>bw25</key>
<value>0</value>
</param>
<param>
<key>center_freq25</key>
<value>0</value>
</param>
<param>
<key>dc_offs_enb25</key>
<value>""</value>
</param>
<param>
<key>iq_imbal_enb25</key>
<value>""</value>
</param>
<param>
<key>norm_gain25</key>
<value>False</value>
</param>
<param>
<key>gain25</key>
<value>0</value>
</param>
<param>
<key>lo_export25</key>
<value>False</value>
</param>
<param>
<key>lo_source25</key>
<value>internal</value>
</param>
<param>
<key>ant26</key>
<value></value>
</param>
<param>
<key>bw26</key>
<value>0</value>
</param>
<param>
<key>center_freq26</key>
<value>0</value>
</param>
<param>
<key>dc_offs_enb26</key>
<value>""</value>
</param>
<param>
<key>iq_imbal_enb26</key>
<value>""</value>
</param>
<param>
<key>norm_gain26</key>
<value>False</value>
</param>
<param>
<key>gain26</key>
<value>0</value>
</param>
<param>
<key>lo_export26</key>
<value>False</value>
</param>
<param>
<key>lo_source26</key>
<value>internal</value>
</param>
<param>
<key>ant27</key>
<value></value>
</param>
<param>
<key>bw27</key>
<value>0</value>
</param>
<param>
<key>center_freq27</key>
<value>0</value>
</param>
<param>
<key>dc_offs_enb27</key>
<value>""</value>
</param>
<param>
<key>iq_imbal_enb27</key>
<value>""</value>
</param>
<param>
<key>norm_gain27</key>
<value>False</value>
</param>
<param>
<key>gain27</key>
<value>0</value>
</param>
<param>
<key>lo_export27</key>
<value>False</value>
</param>
<param>
<key>lo_source27</key>
<value>internal</value>
</param>
<param>
<key>ant28</key>
<value></value>
</param>
<param>
<key>bw28</key>
<value>0</value>
</param>
<param>
<key>center_freq28</key>
<value>0</value>
</param>
<param>
<key>dc_offs_enb28</key>
<value>""</value>
</param>
<param>
<key>iq_imbal_enb28</key>
<value>""</value>
</param>
<param>
<key>norm_gain28</key>
<value>False</value>
</param>
<param>
<key>gain28</key>
<value>0</value>
</param>
<param>
<key>lo_export28</key>
<value>False</value>
</param>
<param>
<key>lo_source28</key>
<value>internal</value>
</param>
<param>
<key>ant29</key>
<value></value>
</param>
<param>
<key>bw29</key>
<value>0</value>
</param>
<param>
<key>center_freq29</key>
<value>0</value>
</param>
<param>
<key>dc_offs_enb29</key>
<value>""</value>
</param>
<param>
<key>iq_imbal_enb29</key>
<value>""</value>
</param>
<param>
<key>norm_gain29</key>
<value>False</value>
</param>
<param>
<key>gain29</key>
<value>0</value>
</param>
<param>
<key>lo_export29</key>
<value>False</value>
</param>
<param>
<key>lo_source29</key>
<value>internal</value>
</param>
<param>
<key>ant2</key>
<value></value>
</param>
<param>
<key>bw2</key>
<value>0</value>
</param>
<param>
<key>center_freq2</key>
<value>0</value>
</param>
<param>
<key>dc_offs_enb2</key>
<value>""</value>
</param>
<param>
<key>iq_imbal_enb2</key>
<value>""</value>
</param>
<param>
<key>norm_gain2</key>
<value>False</value>
</param>
<param>
<key>gain2</key>
<value>0</value>
</param>
<param>
<key>lo_export2</key>
<value>False</value>
</param>
<param>
<key>lo_source2</key>
<value>internal</value>
</param>
<param>
<key>ant30</key>
<value></value>
</param>
<param>
<key>bw30</key>
<value>0</value>
</param>
<param>
<key>center_freq30</key>
<value>0</value>
</param>
<param>
<key>dc_offs_enb30</key>
<value>""</value>
</param>
<param>
<key>iq_imbal_enb30</key>
<value>""</value>
</param>
<param>
<key>norm_gain30</key>
<value>False</value>
</param>
<param>
<key>gain30</key>
<value>0</value>
</param>
<param>
<key>lo_export30</key>
<value>False</value>
</param>
<param>
<key>lo_source30</key>
<value>internal</value>
</param>
<param>
<key>ant31</key>
<value></value>
</param>
<param>
<key>bw31</key>
<value>0</value>
</param>
<param>
<key>center_freq31</key>
<value>0</value>
</param>
<param>
<key>dc_offs_enb31</key>
<value>""</value>
</param>
<param>
<key>iq_imbal_enb31</key>
<value>""</value>
</param>
<param>
<key>norm_gain31</key>
<value>False</value>
</param>
<param>
<key>gain31</key>
<value>0</value>
</param>
<param>
<key>lo_export31</key>
<value>False</value>
</param>
<param>
<key>lo_source31</key>
<value>internal</value>
</param>
<param>
<key>ant3</key>
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Hi Michael,

Firstly, thank you for your suggestion. I have tried your solution and i have transmitted two signals using PFB synthesizer. At the receiver, i have used a PFB channelizer. In simulation, this system works perfectly. I could receive two different files at the receiver from two different transmitters.

But when i tried this system on E310s, it fails. At the transmitter, E310 gives tGtGtGtGtGtGtGtG errors (I know this is related with length tags but i have already provided tag to USRP). At the receiver, it cannot receive signals. It gives this error:

gr::log :INFO: header_payload_demux1 - Parser returned #f
gr::log :INFO: packet_headerparser_b1 - Detected an invalid packet at item 38
gr::log :INFO: header_payload_demux1 - Parser returned #f
gr::log :INFO: packet_headerparser_b1 - Detected an invalid packet at item 76
gr::log :INFO: header_payload_demux1 - Parser returned #f
gr::log :INFO: packet_headerparser_b1 - Detected an invalid packet at item 114
gr::log :INFO: header_payload_demux1 - Parser returned #f
gr::log :INFO: packet_headerparser_b1 - Detected an invalid packet at item 152
gr::log :INFO: header_payload_demux1 - Parser returned #f
gr::log :INFO: packet_headerparser_b1 - Detected an invalid packet at item 190
gr::log :INFO: header_payload_demux1 - Parser returned #f
gr::log :INFO: packet_headerparser_b1 - Detected an invalid packet at item 228

This is obviously related with HPD. But, it does not give this error continuously while signal is transmitting. Normally, if header cannot be decoded, this error should be seen continuously. Instead, it just gives at the beginning of signal.

I have attached three GRC FGs. pfb_test is simulation environment that works perfectly. pfb_transmitter and pfb_receiver are USRP FGs.

Do you have any idea about this situation?

Best regards.

Ramazan

On 20.06.2019 21:16, Michael Dickens wrote:

Hi Ramazan - Hmmm ... I'm not coming up with anything greatly useful when using a single OFDM block for Tx. Alternatively you could use a 2 channel PFB synthesizer on Tx, with 2 separate OFDM Tx and feed them into the synthesizer. On Rx use a PFB channelizer and take its 2 outputs to 2 separate OFDM Rx. The complexity of the PFBs will depend on the filtering required to keep the OFDM channels separate enough. Maybe others have useful ideas of how to do what you're looking for? Hope this is useful! - MLD

On Thu, Jun 20, 2019, at 10:49 AM, Ramazan Çetin wrote:

Hi MLD,

You are right. I guess, one of the transmitters' preamble overlaps another's data. (Because gnuradio sends preamble in all carriers). I have attached my receiver and transmitters' FGs. Both of them uses 256 carrier OFDM. One transmitter use half of the carriers as occupied and another uses other half. I guess our receiver structure is wrong.

Can you suggest a way for implementing multi user OFDM system?