options:
  parameters:
    author: Naoki Sean Pross, Sara Cinzia Halter
    category: '[GRC Hier Blocks]'
    cmake_opt: ''
    comment: ''
    copyright: ''
    description: ''
    gen_cmake: 'On'
    gen_linking: dynamic
    generate_options: no_gui
    hier_block_src_path: '.:'
    id: qpsk_sim
    max_nouts: '0'
    output_language: python
    placement: (0,0)
    qt_qss_theme: ''
    realtime_scheduling: '1'
    run: 'True'
    run_command: '{python} -u {filename}'
    run_options: run
    sizing_mode: fixed
    thread_safe_setters: ''
    title: QPSK Sim
    window_size: ''
  states:
    bus_sink: false
    bus_source: false
    bus_structure: null
    coordinate: [24, 12.0]
    rotation: 0
    state: enabled

blocks:
- name: access_code_symbols
  id: variable
  parameters:
    comment: ''
    value: '[(-0.7071067811865475-0.7071067811865475j), (0.7071067811865475-0.7071067811865475j),
      (0.7071067811865475+0.7071067811865475j), (0.7071067811865475+0.7071067811865475j),
      (-0.7071067811865475-0.7071067811865475j), (0.7071067811865475+0.7071067811865475j),
      (0.7071067811865475-0.7071067811865475j), (0.7071067811865475-0.7071067811865475j)]'
  states:
    bus_sink: false
    bus_source: false
    bus_structure: null
    coordinate: [768, 1092.0]
    rotation: 0
    state: true
- name: carrier_freq
  id: variable
  parameters:
    comment: ''
    value: 2.4e9
  states:
    bus_sink: false
    bus_source: false
    bus_structure: null
    coordinate: [472, 572.0]
    rotation: 0
    state: true
- name: excess_bw
  id: variable
  parameters:
    comment: ''
    value: '0.35'
  states:
    bus_sink: false
    bus_source: false
    bus_structure: null
    coordinate: [336, 1156.0]
    rotation: 0
    state: true
- name: frame
  id: fadingui_frame_obj
  parameters:
    alias: ''
    comment: ''
    payload_len: '16'
    preamble: '[0x1f, 0x35]'
  states:
    bus_sink: false
    bus_source: false
    bus_structure: null
    coordinate: [48, 532.0]
    rotation: 0
    state: disabled
- name: frame_len
  id: variable
  parameters:
    comment: ''
    value: len(testvec) +4
  states:
    bus_sink: false
    bus_source: false
    bus_structure: null
    coordinate: [184, 252.0]
    rotation: 0
    state: enabled
- name: frame_len
  id: variable
  parameters:
    comment: ''
    value: 2 + 4 + 16
  states:
    bus_sink: false
    bus_source: false
    bus_structure: null
    coordinate: [208, 604.0]
    rotation: 0
    state: disabled
- name: nfilts
  id: variable
  parameters:
    comment: ''
    value: '32'
  states:
    bus_sink: false
    bus_source: false
    bus_structure: null
    coordinate: [256, 1156.0]
    rotation: 0
    state: true
- name: qpsk_const
  id: variable_constellation
  parameters:
    comment: ''
    const_points: '[-1-1j, -1+1j, 1+1j, 1-1j]'
    dims: '1'
    precision: '8'
    rot_sym: '4'
    soft_dec_lut: None
    sym_map: '[0, 1, 3, 2]'
    type: qpsk
  states:
    bus_sink: false
    bus_source: false
    bus_structure: null
    coordinate: [448, 340.0]
    rotation: 0
    state: true
- name: rrc_taps
  id: variable
  parameters:
    comment: ''
    value: firdes.root_raised_cosine(nfilts, nfilts, 1.0/float(sps), excess_bw, 45*nfilts)
  states:
    bus_sink: false
    bus_source: false
    bus_structure: null
    coordinate: [432, 1156.0]
    rotation: 0
    state: true
- name: samp_rate
  id: variable
  parameters:
    comment: ''
    value: 1e6
  states:
    bus_sink: false
    bus_source: false
    bus_structure: null
    coordinate: [24, 148.0]
    rotation: 0
    state: enabled
- name: sps
  id: variable
  parameters:
    comment: ''
    value: '4'
  states:
    bus_sink: false
    bus_source: false
    bus_structure: null
    coordinate: [144, 148.0]
    rotation: 0
    state: true
- name: testvec
  id: variable
  parameters:
    comment: ''
    value: '[0x1f, 0x35] + [0x12, 0x48] '
  states:
    bus_sink: false
    bus_source: false
    bus_structure: null
    coordinate: [48, 252.0]
    rotation: 0
    state: enabled
- name: analog_random_source_x_0
  id: analog_random_source_x
  parameters:
    affinity: ''
    alias: ''
    comment: ''
    max: '255'
    maxoutbuf: '0'
    min: '0'
    minoutbuf: '0'
    num_samps: '400'
    repeat: 'True'
    type: byte
  states:
    bus_sink: false
    bus_source: false
    bus_structure: null
    coordinate: [48, 420.0]
    rotation: 0
    state: enabled
- name: analog_simple_squelch_cc_0
  id: analog_simple_squelch_cc
  parameters:
    affinity: ''
    alias: ''
    alpha: ''
    comment: ''
    maxoutbuf: '0'
    minoutbuf: '0'
    threshold: ''
  states:
    bus_sink: false
    bus_source: false
    bus_structure: null
    coordinate: [1000, 692.0]
    rotation: 0
    state: disabled
- name: blocks_complex_to_mag_0
  id: blocks_complex_to_mag
  parameters:
    affinity: ''
    alias: ''
    comment: ''
    maxoutbuf: '0'
    minoutbuf: '0'
    vlen: '1'
  states:
    bus_sink: false
    bus_source: false
    bus_structure: null
    coordinate: [1064, 1080.0]
    rotation: 0
    state: enabled
- name: blocks_null_source_0
  id: blocks_null_source
  parameters:
    affinity: ''
    alias: ''
    bus_structure_source: '[[0,],]'
    comment: ''
    maxoutbuf: '0'
    minoutbuf: '0'
    num_outputs: '1'
    type: complex
    vlen: '1'
  states:
    bus_sink: false
    bus_source: false
    bus_structure: null
    coordinate: [744, 344.0]
    rotation: 0
    state: disabled
- name: blocks_repack_bits_bb_0
  id: blocks_repack_bits_bb
  parameters:
    affinity: ''
    alias: ''
    align_output: 'False'
    comment: ''
    endianness: gr.GR_LSB_FIRST
    k: '2'
    l: '8'
    len_tag_key: '""'
    maxoutbuf: '0'
    minoutbuf: '0'
  states:
    bus_sink: false
    bus_source: false
    bus_structure: null
    coordinate: [768, 1300.0]
    rotation: 0
    state: true
- name: blocks_stream_mux_0
  id: blocks_stream_mux
  parameters:
    affinity: ''
    alias: ''
    comment: ''
    lengths: '[len(testvec), 4]'
    maxoutbuf: '0'
    minoutbuf: '0'
    num_inputs: '2'
    type: byte
    vlen: '1'
  states:
    bus_sink: false
    bus_source: false
    bus_structure: null
    coordinate: [240, 416.0]
    rotation: 0
    state: enabled
- name: blocks_stream_mux_1
  id: blocks_stream_mux
  parameters:
    affinity: ''
    alias: ''
    comment: ''
    lengths: '[]'
    maxoutbuf: '0'
    minoutbuf: '0'
    num_inputs: '2'
    type: complex
    vlen: '1'
  states:
    bus_sink: false
    bus_source: false
    bus_structure: null
    coordinate: [928, 344.0]
    rotation: 0
    state: disabled
- name: blocks_stream_to_vector_0
  id: blocks_stream_to_vector
  parameters:
    affinity: ''
    alias: ''
    comment: ''
    maxoutbuf: '0'
    minoutbuf: '0'
    num_items: frame_len
    type: byte
    vlen: '1'
  states:
    bus_sink: false
    bus_source: false
    bus_structure: null
    coordinate: [992, 1312.0]
    rotation: 0
    state: true
- name: blocks_tagged_stream_align_0
  id: blocks_tagged_stream_align
  parameters:
    affinity: ''
    alias: ''
    comment: ''
    lengthtagname: frame_start
    maxoutbuf: '0'
    minoutbuf: '0'
    type: byte
    vlen: '1'
  states:
    bus_sink: false
    bus_source: false
    bus_structure: null
    coordinate: [496, 1308.0]
    rotation: 0
    state: true
- name: blocks_throttle_0
  id: blocks_throttle
  parameters:
    affinity: ''
    alias: ''
    comment: ''
    ignoretag: 'True'
    maxoutbuf: '0'
    minoutbuf: '0'
    samples_per_second: samp_rate
    type: complex
    vlen: '1'
  states:
    bus_sink: false
    bus_source: false
    bus_structure: null
    coordinate: [720, 428.0]
    rotation: 0
    state: true
- name: blocks_vector_source_x_0
  id: blocks_vector_source_x
  parameters:
    affinity: ''
    alias: ''
    comment: ''
    maxoutbuf: '0'
    minoutbuf: '0'
    repeat: 'True'
    tags: '[]'
    type: byte
    vector: testvec
    vlen: '1'
  states:
    bus_sink: false
    bus_source: false
    bus_structure: null
    coordinate: [48, 324.0]
    rotation: 0
    state: enabled
- name: channels_channel_model_0
  id: channels_channel_model
  parameters:
    affinity: ''
    alias: ''
    block_tags: 'False'
    comment: ''
    epsilon: '1.0'
    freq_offset: 2e-3
    maxoutbuf: '0'
    minoutbuf: '0'
    noise_voltage: 100e-3
    seed: '243'
    taps: np.exp(1j * 30 / 180 * np.pi)
  states:
    bus_sink: false
    bus_source: false
    bus_structure: null
    coordinate: [312, 716.0]
    rotation: 0
    state: enabled
- name: channels_selective_fading_model_0
  id: channels_selective_fading_model
  parameters:
    K: '4.0'
    LOS: 'False'
    N: '8'
    affinity: ''
    alias: ''
    comment: ''
    delays: (0,1.8)
    fDTs: ((2*carrier_freq)/(3*10e8))/samp_rate
    mags: (1,0.12)
    maxoutbuf: '0'
    minoutbuf: '0'
    ntaps: '8'
    seed: '21'
  states:
    bus_sink: false
    bus_source: false
    bus_structure: null
    coordinate: [600, 572.0]
    rotation: 0
    state: enabled
- name: digital_cma_equalizer_cc_0
  id: digital_cma_equalizer_cc
  parameters:
    affinity: ''
    alias: ''
    comment: ''
    maxoutbuf: '0'
    minoutbuf: '0'
    modulus: '1'
    mu: 2e-3
    num_taps: '15'
    sps: '1'
  states:
    bus_sink: false
    bus_source: false
    bus_structure: null
    coordinate: [528, 980.0]
    rotation: 0
    state: true
- name: digital_constellation_decoder_cb_0
  id: digital_constellation_decoder_cb
  parameters:
    affinity: ''
    alias: ''
    comment: ''
    constellation: qpsk_const
    maxoutbuf: '0'
    minoutbuf: '0'
  states:
    bus_sink: false
    bus_source: false
    bus_structure: null
    coordinate: [256, 1308.0]
    rotation: 0
    state: true
- name: digital_constellation_modulator_0
  id: digital_constellation_modulator
  parameters:
    affinity: ''
    alias: ''
    comment: ''
    constellation: qpsk_const
    differential: 'False'
    excess_bw: excess_bw
    log: 'False'
    maxoutbuf: '0'
    minoutbuf: '0'
    samples_per_symbol: sps
    verbose: 'False'
  states:
    bus_sink: false
    bus_source: false
    bus_structure: null
    coordinate: [448, 404.0]
    rotation: 0
    state: true
- name: digital_corr_est_cc_0
  id: digital_corr_est_cc
  parameters:
    affinity: ''
    alias: ''
    comment: ''
    mark_delay: len(access_code_symbols) // 2
    maxoutbuf: '0'
    minoutbuf: '0'
    sps: '1'
    symbols: access_code_symbols
    threshold: '0.9'
    threshold_method: digital.THRESHOLD_ABSOLUTE
  states:
    bus_sink: false
    bus_source: false
    bus_structure: null
    coordinate: [768, 972.0]
    rotation: 0
    state: true
- name: digital_pfb_clock_sync_xxx_0
  id: digital_pfb_clock_sync_xxx
  parameters:
    affinity: ''
    alias: ''
    comment: ''
    filter_size: '32'
    init_phase: '16'
    loop_bw: 2 * np.pi / 100
    max_dev: '1.5'
    maxoutbuf: '0'
    minoutbuf: '0'
    osps: '1'
    sps: sps
    taps: rrc_taps
    type: ccf
  states:
    bus_sink: false
    bus_source: false
    bus_structure: null
    coordinate: [256, 1004.0]
    rotation: 0
    state: true
- name: fadingui_ber_0
  id: fadingui_ber
  parameters:
    address: udp://localhost:31420
    affinity: ''
    alias: ''
    comment: ''
    vgl: list(np.zeros(frame_len))
    vlen: frame_len
  states:
    bus_sink: false
    bus_source: false
    bus_structure: null
    coordinate: [1200, 1292.0]
    rotation: 0
    state: true
- name: fadingui_datasource_0
  id: fadingui_datasource
  parameters:
    affinity: ''
    alias: ''
    comment: ''
    fname: ./lena512color.png
    frame_obj: frame
    maxoutbuf: '0'
    minoutbuf: '0'
  states:
    bus_sink: false
    bus_source: false
    bus_structure: null
    coordinate: [208, 532.0]
    rotation: 0
    state: disabled
- name: fadingui_multipath_fading_0
  id: fadingui_multipath_fading
  parameters:
    affinity: ''
    alias: ''
    amplitudes: '[0.12]'
    comment: ''
    delays: '[1.8]'
    los: 'True'
    maxoutbuf: '0'
    minoutbuf: '0'
  states:
    bus_sink: false
    bus_source: false
    bus_structure: null
    coordinate: [648, 740.0]
    rotation: 0
    state: disabled
- name: fadingui_netsink_0
  id: fadingui_netsink
  parameters:
    address: udp://localhost:31416
    affinity: ''
    alias: ''
    comment: ''
    type: complex
    veclen: '1'
  states:
    bus_sink: false
    bus_source: false
    bus_structure: null
    coordinate: [992, 620.0]
    rotation: 0
    state: enabled
- name: fadingui_netsink_0_0
  id: fadingui_netsink
  parameters:
    address: udp://localhost:31415
    affinity: ''
    alias: ''
    comment: ''
    type: float
    veclen: '1'
  states:
    bus_sink: false
    bus_source: false
    bus_structure: null
    coordinate: [1248, 1148.0]
    rotation: 0
    state: enabled
- name: fadingui_netsink_1
  id: fadingui_netsink
  parameters:
    address: udp://localhost:31418
    affinity: ''
    alias: ''
    comment: ''
    type: complex
    veclen: '1'
  states:
    bus_sink: false
    bus_source: false
    bus_structure: null
    coordinate: [768, 916.0]
    rotation: 0
    state: enabled
- name: fadingui_netsink_3
  id: fadingui_netsink
  parameters:
    address: udp://localhost:31419
    affinity: ''
    alias: ''
    comment: ''
    type: complex
    veclen: '1'
  states:
    bus_sink: false
    bus_source: false
    bus_structure: null
    coordinate: [1280, 916.0]
    rotation: 0
    state: enabled
- name: fadingui_netsink_4
  id: fadingui_netsink
  parameters:
    address: udp://localhost:31417
    affinity: ''
    alias: ''
    comment: ''
    type: complex
    veclen: '1'
  states:
    bus_sink: false
    bus_source: false
    bus_structure: null
    coordinate: [528, 916.0]
    rotation: 0
    state: enabled
- name: fadingui_phasecorrection_0
  id: fadingui_phasecorrection
  parameters:
    affinity: ''
    alias: ''
    comment: ''
    frame_len: frame_len
    maxoutbuf: '0'
    minoutbuf: '0'
  states:
    bus_sink: false
    bus_source: false
    bus_structure: null
    coordinate: [1008, 988.0]
    rotation: 0
    state: true
- name: import_0
  id: import
  parameters:
    alias: ''
    comment: ''
    imports: import numpy as np
  states:
    bus_sink: false
    bus_source: false
    bus_structure: null
    coordinate: [224, 12.0]
    rotation: 0
    state: enabled
- name: qtgui_const_sink_x_0
  id: qtgui_const_sink_x
  parameters:
    affinity: ''
    alias: ''
    alpha1: '1.0'
    alpha10: '1.0'
    alpha2: '1.0'
    alpha3: '1.0'
    alpha4: '1.0'
    alpha5: '1.0'
    alpha6: '1.0'
    alpha7: '1.0'
    alpha8: '1.0'
    alpha9: '1.0'
    autoscale: 'False'
    axislabels: 'True'
    color1: '"blue"'
    color10: '"red"'
    color2: '"red"'
    color3: '"red"'
    color4: '"red"'
    color5: '"red"'
    color6: '"red"'
    color7: '"red"'
    color8: '"red"'
    color9: '"red"'
    comment: ''
    grid: 'False'
    gui_hint: ''
    label1: ''
    label10: ''
    label2: ''
    label3: ''
    label4: ''
    label5: ''
    label6: ''
    label7: ''
    label8: ''
    label9: ''
    legend: 'True'
    marker1: '0'
    marker10: '0'
    marker2: '0'
    marker3: '0'
    marker4: '0'
    marker5: '0'
    marker6: '0'
    marker7: '0'
    marker8: '0'
    marker9: '0'
    name: '""'
    nconnections: '1'
    size: '1024'
    style1: '0'
    style10: '0'
    style2: '0'
    style3: '0'
    style4: '0'
    style5: '0'
    style6: '0'
    style7: '0'
    style8: '0'
    style9: '0'
    tr_chan: '0'
    tr_level: '0.0'
    tr_mode: qtgui.TRIG_MODE_FREE
    tr_slope: qtgui.TRIG_SLOPE_POS
    tr_tag: '""'
    type: complex
    update_time: '0.10'
    width1: '1'
    width10: '1'
    width2: '1'
    width3: '1'
    width4: '1'
    width5: '1'
    width6: '1'
    width7: '1'
    width8: '1'
    width9: '1'
    xmax: '2'
    xmin: '-2'
    ymax: '2'
    ymin: '-2'
  states:
    bus_sink: false
    bus_source: false
    bus_structure: null
    coordinate: [552, 852.0]
    rotation: 0
    state: disabled
- name: qtgui_time_sink_x_0
  id: qtgui_time_sink_x
  parameters:
    affinity: ''
    alias: ''
    alpha1: '1.0'
    alpha10: '1.0'
    alpha2: '1.0'
    alpha3: '1.0'
    alpha4: '1.0'
    alpha5: '1.0'
    alpha6: '1.0'
    alpha7: '1.0'
    alpha8: '1.0'
    alpha9: '1.0'
    autoscale: 'False'
    axislabels: 'True'
    color1: blue
    color10: dark blue
    color2: red
    color3: green
    color4: black
    color5: cyan
    color6: magenta
    color7: yellow
    color8: dark red
    color9: dark green
    comment: ''
    ctrlpanel: 'False'
    entags: 'True'
    grid: 'False'
    gui_hint: ''
    label1: Signal 1
    label10: Signal 10
    label2: Signal 2
    label3: Signal 3
    label4: Signal 4
    label5: Signal 5
    label6: Signal 6
    label7: Signal 7
    label8: Signal 8
    label9: Signal 9
    legend: 'True'
    marker1: '-1'
    marker10: '-1'
    marker2: '-1'
    marker3: '-1'
    marker4: '-1'
    marker5: '-1'
    marker6: '-1'
    marker7: '-1'
    marker8: '-1'
    marker9: '-1'
    name: '""'
    nconnections: '1'
    size: '1024'
    srate: samp_rate / sps
    stemplot: 'False'
    style1: '1'
    style10: '1'
    style2: '1'
    style3: '1'
    style4: '1'
    style5: '1'
    style6: '1'
    style7: '1'
    style8: '1'
    style9: '1'
    tr_chan: '0'
    tr_delay: '0'
    tr_level: '0.0'
    tr_mode: qtgui.TRIG_MODE_FREE
    tr_slope: qtgui.TRIG_SLOPE_POS
    tr_tag: '""'
    type: float
    update_time: '0.10'
    width1: '1'
    width10: '1'
    width2: '1'
    width3: '1'
    width4: '1'
    width5: '1'
    width6: '1'
    width7: '1'
    width8: '1'
    width9: '1'
    ylabel: Amplitude
    ymax: '10'
    ymin: '0'
    yunit: '""'
  states:
    bus_sink: false
    bus_source: false
    bus_structure: null
    coordinate: [1248, 1060.0]
    rotation: 0
    state: disabled
- name: virtual_sink_0
  id: virtual_sink
  parameters:
    alias: ''
    comment: ''
    stream_id: modulated
  states:
    bus_sink: false
    bus_source: false
    bus_structure: null
    coordinate: [1104, 428.0]
    rotation: 0
    state: enabled
- name: virtual_sink_1
  id: virtual_sink
  parameters:
    alias: ''
    comment: ''
    stream_id: envelope
  states:
    bus_sink: false
    bus_source: false
    bus_structure: null
    coordinate: [1000, 756.0]
    rotation: 0
    state: true
- name: virtual_sink_2
  id: virtual_sink
  parameters:
    alias: ''
    comment: ''
    stream_id: symbols
  states:
    bus_sink: false
    bus_source: false
    bus_structure: null
    coordinate: [1312, 988.0]
    rotation: 0
    state: true
- name: virtual_source_0
  id: virtual_source
  parameters:
    alias: ''
    comment: ''
    stream_id: symbols
  states:
    bus_sink: false
    bus_source: false
    bus_structure: null
    coordinate: [48, 1308.0]
    rotation: 0
    state: true
- name: virtual_source_1
  id: virtual_source
  parameters:
    alias: ''
    comment: ''
    stream_id: envelope
  states:
    bus_sink: false
    bus_source: false
    bus_structure: null
    coordinate: [48, 1052.0]
    rotation: 0
    state: true
- name: virtual_source_2
  id: virtual_source
  parameters:
    alias: ''
    comment: ''
    stream_id: modulated
  states:
    bus_sink: false
    bus_source: false
    bus_structure: null
    coordinate: [56, 756.0]
    rotation: 0
    state: true

connections:
- [analog_random_source_x_0, '0', blocks_stream_mux_0, '1']
- [blocks_complex_to_mag_0, '0', fadingui_netsink_0_0, '0']
- [blocks_complex_to_mag_0, '0', qtgui_time_sink_x_0, '0']
- [blocks_null_source_0, '0', blocks_stream_mux_1, '0']
- [blocks_repack_bits_bb_0, '0', blocks_stream_to_vector_0, '0']
- [blocks_stream_mux_0, '0', digital_constellation_modulator_0, '0']
- [blocks_stream_mux_1, '0', virtual_sink_0, '0']
- [blocks_stream_to_vector_0, '0', fadingui_ber_0, '0']
- [blocks_tagged_stream_align_0, '0', blocks_repack_bits_bb_0, '0']
- [blocks_throttle_0, '0', blocks_stream_mux_1, '1']
- [blocks_throttle_0, '0', virtual_sink_0, '0']
- [blocks_vector_source_x_0, '0', blocks_stream_mux_0, '0']
- [channels_channel_model_0, '0', channels_selective_fading_model_0, '0']
- [channels_channel_model_0, '0', fadingui_multipath_fading_0, '0']
- [channels_selective_fading_model_0, '0', fadingui_netsink_0, '0']
- [channels_selective_fading_model_0, '0', virtual_sink_1, '0']
- [digital_cma_equalizer_cc_0, '0', digital_corr_est_cc_0, '0']
- [digital_cma_equalizer_cc_0, '0', fadingui_netsink_1, '0']
- [digital_constellation_decoder_cb_0, '0', blocks_tagged_stream_align_0, '0']
- [digital_constellation_modulator_0, '0', blocks_throttle_0, '0']
- [digital_corr_est_cc_0, '0', fadingui_phasecorrection_0, '0']
- [digital_corr_est_cc_0, '1', blocks_complex_to_mag_0, '0']
- [digital_pfb_clock_sync_xxx_0, '0', digital_cma_equalizer_cc_0, '0']
- [digital_pfb_clock_sync_xxx_0, '0', fadingui_netsink_4, '0']
- [digital_pfb_clock_sync_xxx_0, '0', qtgui_const_sink_x_0, '0']
- [fadingui_datasource_0, '0', digital_constellation_modulator_0, '0']
- [fadingui_multipath_fading_0, '0', fadingui_netsink_0, '0']
- [fadingui_multipath_fading_0, '0', virtual_sink_1, '0']
- [fadingui_phasecorrection_0, '0', fadingui_netsink_3, '0']
- [fadingui_phasecorrection_0, '0', virtual_sink_2, '0']
- [virtual_source_0, '0', digital_constellation_decoder_cb_0, '0']
- [virtual_source_1, '0', digital_pfb_clock_sync_xxx_0, '0']
- [virtual_source_2, '0', channels_channel_model_0, '0']

metadata:
  file_format: 1