<?xml version='1.0' encoding='ASCII'?>
<flow_graph>
  <timestamp>Thu Feb 14 15:49:35 2013</timestamp>
  <block>
    <key>options</key>
    <param>
      <key>id</key>
      <value>rx_ofdm</value>
    </param>
    <param>
      <key>_enabled</key>
      <value>True</value>
    </param>
    <param>
      <key>title</key>
      <value>OFDM Rx</value>
    </param>
    <param>
      <key>author</key>
      <value></value>
    </param>
    <param>
      <key>description</key>
      <value>Example of an OFDM receiver</value>
    </param>
    <param>
      <key>window_size</key>
      <value>1280, 1024</value>
    </param>
    <param>
      <key>generate_options</key>
      <value>wx_gui</value>
    </param>
    <param>
      <key>category</key>
      <value>Custom</value>
    </param>
    <param>
      <key>run_options</key>
      <value>prompt</value>
    </param>
    <param>
      <key>run</key>
      <value>True</value>
    </param>
    <param>
      <key>max_nouts</key>
      <value>0</value>
    </param>
    <param>
      <key>realtime_scheduling</key>
      <value></value>
    </param>
    <param>
      <key>_coordinate</key>
      <value>(0, -1)</value>
    </param>
    <param>
      <key>_rotation</key>
      <value>0</value>
    </param>
  </block>
  <block>
    <key>variable</key>
    <param>
      <key>id</key>
      <value>pilot_symbols_0</value>
    </param>
    <param>
      <key>_enabled</key>
      <value>True</value>
    </param>
    <param>
      <key>value</key>
      <value>((100,),)</value>
    </param>
    <param>
      <key>_coordinate</key>
      <value>(762, 64)</value>
    </param>
    <param>
      <key>_rotation</key>
      <value>0</value>
    </param>
  </block>
  <block>
    <key>variable</key>
    <param>
      <key>id</key>
      <value>pilot_carriers</value>
    </param>
    <param>
      <key>_enabled</key>
      <value>True</value>
    </param>
    <param>
      <key>value</key>
      <value>((0,),)</value>
    </param>
    <param>
      <key>_coordinate</key>
      <value>(557, 64)</value>
    </param>
    <param>
      <key>_rotation</key>
      <value>0</value>
    </param>
  </block>
  <block>
    <key>variable</key>
    <param>
      <key>id</key>
      <value>header_formatter</value>
    </param>
    <param>
      <key>_enabled</key>
      <value>True</value>
    </param>
    <param>
      <key>value</key>
      <value>digital.packet_header_ofdm(occupied_carriers, 1, length_tag_name)</value>
    </param>
    <param>
      <key>_coordinate</key>
      <value>(876, 64)</value>
    </param>
    <param>
      <key>_rotation</key>
      <value>0</value>
    </param>
  </block>
  <block>
    <key>variable</key>
    <param>
      <key>id</key>
      <value>pilot_symbols</value>
    </param>
    <param>
      <key>_enabled</key>
      <value>True</value>
    </param>
    <param>
      <key>value</key>
      <value>((100,),)</value>
    </param>
    <param>
      <key>_coordinate</key>
      <value>(659, 64)</value>
    </param>
    <param>
      <key>_rotation</key>
      <value>0</value>
    </param>
  </block>
  <block>
    <key>variable</key>
    <param>
      <key>id</key>
      <value>occupied_carriers</value>
    </param>
    <param>
      <key>_enabled</key>
      <value>True</value>
    </param>
    <param>
      <key>value</key>
      <value>(range(-26, -21) + range(-20, -7) + range(-6, 0) + range(1, 7) + range(8, 21) + range(22, 27),)</value>
    </param>
    <param>
      <key>_coordinate</key>
      <value>(404, 64)</value>
    </param>
    <param>
      <key>_rotation</key>
      <value>0</value>
    </param>
  </block>
  <block>
    <key>analog_noise_source_x</key>
    <param>
      <key>id</key>
      <value>analog_noise_source_x_0</value>
    </param>
    <param>
      <key>_enabled</key>
      <value>True</value>
    </param>
    <param>
      <key>type</key>
      <value>complex</value>
    </param>
    <param>
      <key>noise_type</key>
      <value>analog.GR_GAUSSIAN</value>
    </param>
    <param>
      <key>amp</key>
      <value>1</value>
    </param>
    <param>
      <key>seed</key>
      <value>0</value>
    </param>
    <param>
      <key>_coordinate</key>
      <value>(-1, 185)</value>
    </param>
    <param>
      <key>_rotation</key>
      <value>0</value>
    </param>
  </block>
  <block>
    <key>digital_ofdm_sync_sc_cfb</key>
    <param>
      <key>id</key>
      <value>digital_ofdm_sync_sc_cfb_0</value>
    </param>
    <param>
      <key>_enabled</key>
      <value>True</value>
    </param>
    <param>
      <key>fft_len</key>
      <value>fft_len</value>
    </param>
    <param>
      <key>cp_len</key>
      <value>fft_len/4</value>
    </param>
    <param>
      <key>_coordinate</key>
      <value>(368, 178)</value>
    </param>
    <param>
      <key>_rotation</key>
      <value>0</value>
    </param>
  </block>
  <block>
    <key>analog_frequency_modulator_fc</key>
    <param>
      <key>id</key>
      <value>analog_frequency_modulator_fc_0</value>
    </param>
    <param>
      <key>_enabled</key>
      <value>True</value>
    </param>
    <param>
      <key>sensitivity</key>
      <value>-2.0/fft_len</value>
    </param>
    <param>
      <key>_coordinate</key>
      <value>(692, 175)</value>
    </param>
    <param>
      <key>_rotation</key>
      <value>0</value>
    </param>
  </block>
  <block>
    <key>blocks_multiply_xx</key>
    <param>
      <key>id</key>
      <value>blocks_multiply_xx_0</value>
    </param>
    <param>
      <key>_enabled</key>
      <value>True</value>
    </param>
    <param>
      <key>type</key>
      <value>complex</value>
    </param>
    <param>
      <key>num_inputs</key>
      <value>2</value>
    </param>
    <param>
      <key>vlen</key>
      <value>1</value>
    </param>
    <param>
      <key>_coordinate</key>
      <value>(885, 223)</value>
    </param>
    <param>
      <key>_rotation</key>
      <value>0</value>
    </param>
  </block>
  <block>
    <key>blocks_delay</key>
    <param>
      <key>id</key>
      <value>blocks_delay_0</value>
    </param>
    <param>
      <key>_enabled</key>
      <value>True</value>
    </param>
    <param>
      <key>type</key>
      <value>complex</value>
    </param>
    <param>
      <key>delay</key>
      <value>fft_len+fft_len/4</value>
    </param>
    <param>
      <key>num_ports</key>
      <value>1</value>
    </param>
    <param>
      <key>vlen</key>
      <value>1</value>
    </param>
    <param>
      <key>_coordinate</key>
      <value>(368, 253)</value>
    </param>
    <param>
      <key>_rotation</key>
      <value>0</value>
    </param>
  </block>
  <block>
    <key>variable</key>
    <param>
      <key>id</key>
      <value>samp_rate</value>
    </param>
    <param>
      <key>_enabled</key>
      <value>True</value>
    </param>
    <param>
      <key>value</key>
      <value>3200000</value>
    </param>
    <param>
      <key>_coordinate</key>
      <value>(0, 91)</value>
    </param>
    <param>
      <key>_rotation</key>
      <value>0</value>
    </param>
  </block>
  <block>
    <key>import</key>
    <param>
      <key>id</key>
      <value>import_1</value>
    </param>
    <param>
      <key>_enabled</key>
      <value>True</value>
    </param>
    <param>
      <key>import</key>
      <value>from gnuradio.digital.utils import tagged_streams</value>
    </param>
    <param>
      <key>_coordinate</key>
      <value>(163, 0)</value>
    </param>
    <param>
      <key>_rotation</key>
      <value>0</value>
    </param>
  </block>
  <block>
    <key>variable</key>
    <param>
      <key>id</key>
      <value>sync_word</value>
    </param>
    <param>
      <key>_enabled</key>
      <value>True</value>
    </param>
    <param>
      <key>value</key>
      <value>[0, 0, 0, 0, 0, 0, 0, -1.0, 0, 1.0, 0, 1.0, 0, -1.0, 0, 1.0, 0, -1.0, 0, 1.0, 0, -1.0, 0, -1.0, 0, 1.0, 0, 1.0, 0, 1.0, 0, -1.0, 0, 1.0, 0, -1.0, 0, 1.0, 0, -1.0, 0, -1.0, 0, -1.0, 0, 1.0, 0, -1.0, 0, 1.0, 0, 1.0, 0, -1.0, 0, 1.0, 0, -1.0, 0, 0, 0, 0, 0, 0]</value>
    </param>
    <param>
      <key>_coordinate</key>
      <value>(165, 46)</value>
    </param>
    <param>
      <key>_rotation</key>
      <value>0</value>
    </param>
  </block>
  <block>
    <key>variable</key>
    <param>
      <key>id</key>
      <value>header_mod</value>
    </param>
    <param>
      <key>_enabled</key>
      <value>True</value>
    </param>
    <param>
      <key>value</key>
      <value>digital.constellation_bpsk()</value>
    </param>
    <param>
      <key>_coordinate</key>
      <value>(655, 0)</value>
    </param>
    <param>
      <key>_rotation</key>
      <value>0</value>
    </param>
  </block>
  <block>
    <key>variable</key>
    <param>
      <key>id</key>
      <value>payload_mod</value>
    </param>
    <param>
      <key>_enabled</key>
      <value>True</value>
    </param>
    <param>
      <key>value</key>
      <value>digital.constellation_qpsk()</value>
    </param>
    <param>
      <key>_coordinate</key>
      <value>(813, 0)</value>
    </param>
    <param>
      <key>_rotation</key>
      <value>0</value>
    </param>
  </block>
  <block>
    <key>variable</key>
    <param>
      <key>id</key>
      <value>n_sync_symbols</value>
    </param>
    <param>
      <key>_enabled</key>
      <value>True</value>
    </param>
    <param>
      <key>value</key>
      <value>1</value>
    </param>
    <param>
      <key>_coordinate</key>
      <value>(168, 108)</value>
    </param>
    <param>
      <key>_rotation</key>
      <value>0</value>
    </param>
  </block>
  <block>
    <key>blocks_throttle</key>
    <param>
      <key>id</key>
      <value>blocks_throttle_0</value>
    </param>
    <param>
      <key>_enabled</key>
      <value>True</value>
    </param>
    <param>
      <key>type</key>
      <value>complex</value>
    </param>
    <param>
      <key>samples_per_second</key>
      <value>samp_rate</value>
    </param>
    <param>
      <key>vlen</key>
      <value>1</value>
    </param>
    <param>
      <key>_coordinate</key>
      <value>(181, 200)</value>
    </param>
    <param>
      <key>_rotation</key>
      <value>0</value>
    </param>
  </block>
  <block>
    <key>digital_constellation_decoder_cb</key>
    <param>
      <key>id</key>
      <value>digital_constellation_decoder_cb_0_0</value>
    </param>
    <param>
      <key>_enabled</key>
      <value>True</value>
    </param>
    <param>
      <key>constellation</key>
      <value>header_mod.base()</value>
    </param>
    <param>
      <key>_coordinate</key>
      <value>(854, 343)</value>
    </param>
    <param>
      <key>_rotation</key>
      <value>0</value>
    </param>
  </block>
  <block>
    <key>digital_ofdm_frame_equalizer_vcvc</key>
    <param>
      <key>id</key>
      <value>digital_ofdm_frame_equalizer_vcvc_0_0</value>
    </param>
    <param>
      <key>_enabled</key>
      <value>True</value>
    </param>
    <param>
      <key>fft_len</key>
      <value>fft_len</value>
    </param>
    <param>
      <key>equalizer</key>
      <value>digital.ofdm_equalizer_simpledfe(fft_len, header_mod.base(), occupied_carriers, pilot_carriers, pilot_symbols).base()</value>
    </param>
    <param>
      <key>len_tag_key</key>
      <value>length_tag_name</value>
    </param>
    <param>
      <key>propagate_channel_state</key>
      <value>True</value>
    </param>
    <param>
      <key>_coordinate</key>
      <value>(421, 320)</value>
    </param>
    <param>
      <key>_rotation</key>
      <value>0</value>
    </param>
  </block>
  <block>
    <key>digital_packet_headerparser_b</key>
    <param>
      <key>id</key>
      <value>digital_packet_headerparser_b_0</value>
    </param>
    <param>
      <key>_enabled</key>
      <value>True</value>
    </param>
    <param>
      <key>header_formatter</key>
      <value>header_formatter.formatter()</value>
    </param>
    <param>
      <key>_coordinate</key>
      <value>(651, 466)</value>
    </param>
    <param>
      <key>_rotation</key>
      <value>180</value>
    </param>
  </block>
  <block>
    <key>fft_vxx</key>
    <param>
      <key>id</key>
      <value>fft_vxx_0</value>
    </param>
    <param>
      <key>_enabled</key>
      <value>True</value>
    </param>
    <param>
      <key>type</key>
      <value>complex</value>
    </param>
    <param>
      <key>fft_size</key>
      <value>fft_len</value>
    </param>
    <param>
      <key>forward</key>
      <value>True</value>
    </param>
    <param>
      <key>window</key>
      <value></value>
    </param>
    <param>
      <key>shift</key>
      <value>True</value>
    </param>
    <param>
      <key>nthreads</key>
      <value>1</value>
    </param>
    <param>
      <key>_coordinate</key>
      <value>(53, 429)</value>
    </param>
    <param>
      <key>_rotation</key>
      <value>180</value>
    </param>
  </block>
  <block>
    <key>variable</key>
    <param>
      <key>id</key>
      <value>fft_len</value>
    </param>
    <param>
      <key>_enabled</key>
      <value>True</value>
    </param>
    <param>
      <key>value</key>
      <value>64</value>
    </param>
    <param>
      <key>_coordinate</key>
      <value>(301, -1)</value>
    </param>
    <param>
      <key>_rotation</key>
      <value>0</value>
    </param>
  </block>
  <block>
    <key>variable</key>
    <param>
      <key>id</key>
      <value>length_tag_name</value>
    </param>
    <param>
      <key>_enabled</key>
      <value>True</value>
    </param>
    <param>
      <key>value</key>
      <value>"frame_len"</value>
    </param>
    <param>
      <key>_coordinate</key>
      <value>(367, -1)</value>
    </param>
    <param>
      <key>_rotation</key>
      <value>0</value>
    </param>
  </block>
  <block>
    <key>digital_constellation_decoder_cb</key>
    <param>
      <key>id</key>
      <value>digital_constellation_decoder_cb_0</value>
    </param>
    <param>
      <key>_enabled</key>
      <value>True</value>
    </param>
    <param>
      <key>constellation</key>
      <value>payload_mod.base()</value>
    </param>
    <param>
      <key>_coordinate</key>
      <value>(718, 635)</value>
    </param>
    <param>
      <key>_rotation</key>
      <value>0</value>
    </param>
  </block>
  <block>
    <key>gr_null_sink</key>
    <param>
      <key>id</key>
      <value>gr_null_sink_0</value>
    </param>
    <param>
      <key>_enabled</key>
      <value>True</value>
    </param>
    <param>
      <key>type</key>
      <value>byte</value>
    </param>
    <param>
      <key>vlen</key>
      <value>1</value>
    </param>
    <param>
      <key>_coordinate</key>
      <value>(938, 638)</value>
    </param>
    <param>
      <key>_rotation</key>
      <value>0</value>
    </param>
  </block>
  <block>
    <key>digital_ofdm_frame_equalizer_vcvc</key>
    <param>
      <key>id</key>
      <value>digital_ofdm_frame_equalizer_vcvc_0</value>
    </param>
    <param>
      <key>_enabled</key>
      <value>True</value>
    </param>
    <param>
      <key>fft_len</key>
      <value>fft_len</value>
    </param>
    <param>
      <key>equalizer</key>
      <value>digital.ofdm_equalizer_simpledfe(fft_len, header_mod.base(), occupied_carriers, pilot_carriers, pilot_symbols, n_sync_symbols).base()</value>
    </param>
    <param>
      <key>len_tag_key</key>
      <value>length_tag_key</value>
    </param>
    <param>
      <key>propagate_channel_state</key>
      <value>False</value>
    </param>
    <param>
      <key>_coordinate</key>
      <value>(265, 612)</value>
    </param>
    <param>
      <key>_rotation</key>
      <value>0</value>
    </param>
  </block>
  <block>
    <key>fft_vxx</key>
    <param>
      <key>id</key>
      <value>fft_vxx_0_0</value>
    </param>
    <param>
      <key>_enabled</key>
      <value>True</value>
    </param>
    <param>
      <key>type</key>
      <value>complex</value>
    </param>
    <param>
      <key>fft_size</key>
      <value>fft_len</value>
    </param>
    <param>
      <key>forward</key>
      <value>True</value>
    </param>
    <param>
      <key>window</key>
      <value></value>
    </param>
    <param>
      <key>shift</key>
      <value>True</value>
    </param>
    <param>
      <key>nthreads</key>
      <value>1</value>
    </param>
    <param>
      <key>_coordinate</key>
      <value>(57, 605)</value>
    </param>
    <param>
      <key>_rotation</key>
      <value>0</value>
    </param>
  </block>
  <block>
    <key>digital_ofdm_serializer_vcc</key>
    <param>
      <key>id</key>
      <value>digital_ofdm_serializer_vcc_0</value>
    </param>
    <param>
      <key>_enabled</key>
      <value>True</value>
    </param>
    <param>
      <key>fft_len</key>
      <value>fft_len</value>
    </param>
    <param>
      <key>occupied_carriers</key>
      <value>occupied_carriers</value>
    </param>
    <param>
      <key>len_tag_key</key>
      <value>length_tag_name</value>
    </param>
    <param>
      <key>packet_len_tag_key</key>
      <value>""</value>
    </param>
    <param>
      <key>symbols_skipped</key>
      <value>0</value>
    </param>
    <param>
      <key>input_is_shifted</key>
      <value>True</value>
    </param>
    <param>
      <key>_coordinate</key>
      <value>(649, 305)</value>
    </param>
    <param>
      <key>_rotation</key>
      <value>0</value>
    </param>
  </block>
  <block>
    <key>digital_ofdm_serializer_vcc</key>
    <param>
      <key>id</key>
      <value>digital_ofdm_serializer_vcc_1</value>
    </param>
    <param>
      <key>_enabled</key>
      <value>True</value>
    </param>
    <param>
      <key>fft_len</key>
      <value>fft_len</value>
    </param>
    <param>
      <key>occupied_carriers</key>
      <value>occupied_carriers</value>
    </param>
    <param>
      <key>len_tag_key</key>
      <value>length_tag_key</value>
    </param>
    <param>
      <key>packet_len_tag_key</key>
      <value>""</value>
    </param>
    <param>
      <key>symbols_skipped</key>
      <value>1</value>
    </param>
    <param>
      <key>input_is_shifted</key>
      <value>True</value>
    </param>
    <param>
      <key>_coordinate</key>
      <value>(496, 597)</value>
    </param>
    <param>
      <key>_rotation</key>
      <value>0</value>
    </param>
  </block>
  <block>
    <key>digital_ofdm_chanest_vcvc</key>
    <param>
      <key>id</key>
      <value>digital_ofdm_chanest_vcvc_0</value>
    </param>
    <param>
      <key>_enabled</key>
      <value>True</value>
    </param>
    <param>
      <key>sync_symbol1</key>
      <value>sync_word</value>
    </param>
    <param>
      <key>sync_symbol2</key>
      <value>()</value>
    </param>
    <param>
      <key>n_data_symbols</key>
      <value>n_sync_symbols</value>
    </param>
    <param>
      <key>eq_noise_red_len</key>
      <value>0</value>
    </param>
    <param>
      <key>max_carr_offset</key>
      <value>-1</value>
    </param>
    <param>
      <key>force_one_symbol</key>
      <value>False</value>
    </param>
    <param>
      <key>_coordinate</key>
      <value>(52, 305)</value>
    </param>
    <param>
      <key>_rotation</key>
      <value>0</value>
    </param>
  </block>
  <block>
    <key>digital_header_payload_demux</key>
    <param>
      <key>id</key>
      <value>digital_header_payload_demux_0</value>
    </param>
    <param>
      <key>_enabled</key>
      <value>True</value>
    </param>
    <param>
      <key>header_len</key>
      <value>2</value>
    </param>
    <param>
      <key>items_per_symbol</key>
      <value>fft_len</value>
    </param>
    <param>
      <key>guard_interval</key>
      <value>fft_len/4</value>
    </param>
    <param>
      <key>length_tag_key</key>
      <value>length_tag_name</value>
    </param>
    <param>
      <key>trigger_tag_key</key>
      <value>""</value>
    </param>
    <param>
      <key>output_symbols</key>
      <value>True</value>
    </param>
    <param>
      <key>type</key>
      <value>complex</value>
    </param>
    <param>
      <key>_coordinate</key>
      <value>(340, 461)</value>
    </param>
    <param>
      <key>_rotation</key>
      <value>180</value>
    </param>
  </block>
  <connection>
    <source_block_id>fft_vxx_0</source_block_id>
    <sink_block_id>digital_ofdm_chanest_vcvc_0</sink_block_id>
    <source_key>0</source_key>
    <sink_key>0</sink_key>
  </connection>
  <connection>
    <source_block_id>analog_frequency_modulator_fc_0</source_block_id>
    <sink_block_id>blocks_multiply_xx_0</sink_block_id>
    <source_key>0</source_key>
    <sink_key>0</sink_key>
  </connection>
  <connection>
    <source_block_id>digital_ofdm_sync_sc_cfb_0</source_block_id>
    <sink_block_id>analog_frequency_modulator_fc_0</sink_block_id>
    <source_key>0</source_key>
    <sink_key>0</sink_key>
  </connection>
  <connection>
    <source_block_id>analog_noise_source_x_0</source_block_id>
    <sink_block_id>blocks_throttle_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>digital_ofdm_sync_sc_cfb_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_delay_0</sink_block_id>
    <source_key>0</source_key>
    <sink_key>0</sink_key>
  </connection>
  <connection>
    <source_block_id>blocks_delay_0</source_block_id>
    <sink_block_id>blocks_multiply_xx_0</sink_block_id>
    <source_key>0</source_key>
    <sink_key>1</sink_key>
  </connection>
  <connection>
    <source_block_id>digital_constellation_decoder_cb_0_0</source_block_id>
    <sink_block_id>digital_packet_headerparser_b_0</sink_block_id>
    <source_key>0</source_key>
    <sink_key>0</sink_key>
  </connection>
  <connection>
    <source_block_id>digital_ofdm_serializer_vcc_0</source_block_id>
    <sink_block_id>digital_constellation_decoder_cb_0_0</sink_block_id>
    <source_key>0</source_key>
    <sink_key>0</sink_key>
  </connection>
  <connection>
    <source_block_id>digital_ofdm_sync_sc_cfb_0</source_block_id>
    <sink_block_id>digital_header_payload_demux_0</sink_block_id>
    <source_key>1</source_key>
    <sink_key>1</sink_key>
  </connection>
  <connection>
    <source_block_id>digital_ofdm_chanest_vcvc_0</source_block_id>
    <sink_block_id>digital_ofdm_frame_equalizer_vcvc_0_0</sink_block_id>
    <source_key>0</source_key>
    <sink_key>0</sink_key>
  </connection>
  <connection>
    <source_block_id>digital_ofdm_frame_equalizer_vcvc_0_0</source_block_id>
    <sink_block_id>digital_ofdm_serializer_vcc_0</sink_block_id>
    <source_key>0</source_key>
    <sink_key>0</sink_key>
  </connection>
  <connection>
    <source_block_id>digital_packet_headerparser_b_0</source_block_id>
    <sink_block_id>digital_header_payload_demux_0</sink_block_id>
    <source_key>0</source_key>
    <sink_key>2</sink_key>
  </connection>
  <connection>
    <source_block_id>digital_header_payload_demux_0</source_block_id>
    <sink_block_id>fft_vxx_0</sink_block_id>
    <source_key>0</source_key>
    <sink_key>0</sink_key>
  </connection>
  <connection>
    <source_block_id>digital_header_payload_demux_0</source_block_id>
    <sink_block_id>fft_vxx_0_0</sink_block_id>
    <source_key>1</source_key>
    <sink_key>0</sink_key>
  </connection>
  <connection>
    <source_block_id>blocks_multiply_xx_0</source_block_id>
    <sink_block_id>digital_header_payload_demux_0</sink_block_id>
    <source_key>0</source_key>
    <sink_key>0</sink_key>
  </connection>
  <connection>
    <source_block_id>digital_constellation_decoder_cb_0</source_block_id>
    <sink_block_id>gr_null_sink_0</sink_block_id>
    <source_key>0</source_key>
    <sink_key>0</sink_key>
  </connection>
  <connection>
    <source_block_id>digital_ofdm_frame_equalizer_vcvc_0</source_block_id>
    <sink_block_id>digital_ofdm_serializer_vcc_1</sink_block_id>
    <source_key>0</source_key>
    <sink_key>0</sink_key>
  </connection>
  <connection>
    <source_block_id>digital_ofdm_serializer_vcc_1</source_block_id>
    <sink_block_id>digital_constellation_decoder_cb_0</sink_block_id>
    <source_key>0</source_key>
    <sink_key>0</sink_key>
  </connection>
  <connection>
    <source_block_id>fft_vxx_0_0</source_block_id>
    <sink_block_id>digital_ofdm_frame_equalizer_vcvc_0</sink_block_id>
    <source_key>0</source_key>
    <sink_key>0</sink_key>
  </connection>
</flow_graph>