add 1 channel primary user tx and rx

examples/cdc_pu_1chan_rx.grc

+options:
+  parameters:
+    author: ''
+    catch_exceptions: 'True'
+    category: '[GRC Hier Blocks]'
+    cmake_opt: ''
+    comment: ''
+    copyright: University of Melbourne
+    description: ''
+    gen_cmake: 'On'
+    gen_linking: dynamic
+    generate_options: qt_gui
+    hier_block_src_path: '.:'
+    id: cdc_pu_1chan_rx
+    max_nouts: '0'
+    output_language: python
+    placement: (0,0)
+    qt_qss_theme: ''
+    realtime_scheduling: ''
+    run: 'True'
+    run_command: '{python} -u {filename}'
+    run_options: prompt
+    sizing_mode: fixed
+    thread_safe_setters: ''
+    title: DSA Primary User Rx - 1 Channel
+    window_size: (1000,1000)
+  states:
+    bus_sink: false
+    bus_source: false
+    bus_structure: null
+    coordinate: [8, 8]
+    rotation: 0
+    state: enabled
+
+blocks:
+- name: fft_len
+  id: variable
+  parameters:
+    comment: ''
+    value: '64'
+  states:
+    bus_sink: false
+    bus_source: false
+    bus_structure: null
+    coordinate: [8, 484.0]
+    rotation: 0
+    state: enabled
+- name: occupied_carriers
+  id: variable
+  parameters:
+    comment: ''
+    value: (list(range(-26, -21)) + list(range(-20, -7)) + list(range(-6, 0)) + list(range(1,
+      7)) + list(range(8, 21)) + list(range(22, 27)),)
+  states:
+    bus_sink: false
+    bus_source: false
+    bus_structure: null
+    coordinate: [368, 484.0]
+    rotation: 0
+    state: enabled
+- name: pilot_carriers
+  id: variable
+  parameters:
+    comment: ''
+    value: ((-21, -7, 7, 21,),)
+  states:
+    bus_sink: false
+    bus_source: false
+    bus_structure: null
+    coordinate: [528, 484.0]
+    rotation: 0
+    state: enabled
+- name: pilot_symbols
+  id: variable
+  parameters:
+    comment: ''
+    value: ((1, 1, 1, -1,),)
+  states:
+    bus_sink: false
+    bus_source: false
+    bus_structure: null
+    coordinate: [656, 484.0]
+    rotation: 0
+    state: enabled
+- name: rf_freq
+  id: variable_qtgui_range
+  parameters:
+    comment: ''
+    gui_hint: ''
+    label: RF Frequency
+    min_len: '200'
+    orient: QtCore.Qt.Horizontal
+    rangeType: float
+    start: 70e6
+    step: 1e3
+    stop: 6e9
+    value: 915e6
+    widget: counter
+  states:
+    bus_sink: false
+    bus_source: false
+    bus_structure: null
+    coordinate: [280, 12.0]
+    rotation: 0
+    state: true
+- name: rx_gain
+  id: variable_qtgui_range
+  parameters:
+    comment: ''
+    gui_hint: ''
+    label: Rx Gain (dB)
+    min_len: '200'
+    orient: QtCore.Qt.Horizontal
+    rangeType: float
+    start: '-15'
+    step: '1'
+    stop: '60'
+    value: '30'
+    widget: counter
+  states:
+    bus_sink: false
+    bus_source: false
+    bus_structure: null
+    coordinate: [408, 12.0]
+    rotation: 0
+    state: true
+- name: samp_rate
+  id: variable
+  parameters:
+    comment: ''
+    value: 1e6
+  states:
+    bus_sink: false
+    bus_source: false
+    bus_structure: null
+    coordinate: [184, 12.0]
+    rotation: 0
+    state: enabled
+- name: sync_word1
+  id: variable
+  parameters:
+    comment: ''
+    value: '[0., 0., 0., 0., 0., 0., 0., 1.41421356, 0., -1.41421356, 0., 1.41421356,
+      0., -1.41421356, 0., -1.41421356, 0., -1.41421356, 0., 1.41421356, 0., -1.41421356,
+      0., 1.41421356, 0., -1.41421356, 0., -1.41421356, 0., -1.41421356, 0., -1.41421356,
+      0., 1.41421356, 0., -1.41421356, 0., 1.41421356, 0., 1.41421356, 0., 1.41421356,
+      0., -1.41421356, 0., 1.41421356, 0., 1.41421356, 0., 1.41421356, 0., -1.41421356,
+      0., 1.41421356, 0., 1.41421356, 0., 1.41421356, 0., 0., 0., 0., 0., 0.]'
+  states:
+    bus_sink: false
+    bus_source: false
+    bus_structure: null
+    coordinate: [80, 484.0]
+    rotation: 0
+    state: enabled
+- name: sync_word2
+  id: variable
+  parameters:
+    comment: ''
+    value: '[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), 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]'
+  states:
+    bus_sink: false
+    bus_source: false
+    bus_structure: null
+    coordinate: [224, 484.0]
+    rotation: 0
+    state: enabled
+- name: bladeRF_source_0
+  id: bladeRF_source
+  parameters:
+    affinity: ''
+    alias: ''
+    bias_tee0: 'False'
+    bias_tee1: 'False'
+    bw: '0'
+    comment: ''
+    dac: '10000'
+    dc_calibration: LPF_TUNING
+    dc_offset_mode0: '0'
+    dc_offset_mode1: '0'
+    device_id: '0'
+    fpga_image: ''
+    fpga_reload: 'False'
+    freq: rf_freq
+    gain0: rx_gain
+    gain1: '10'
+    gain_mode0: 'False'
+    gain_mode1: 'False'
+    if_gain0: '0'
+    if_gain1: '20'
+    in_clk: ONBOARD
+    iq_balance_mode0: '0'
+    iq_balance_mode1: '0'
+    lpf_mode: disabled
+    maxoutbuf: '0'
+    metadata: 'False'
+    minoutbuf: '0'
+    nchan: '1'
+    out_clk: 'False'
+    ref_clk: 10e6
+    sample_rate: samp_rate
+    sampling: internal
+    show_pmic: 'False'
+    smb: '0'
+    tamer: internal
+    trigger0: 'False'
+    trigger1: 'False'
+    trigger_role0: master
+    trigger_role1: master
+    trigger_signal0: J51_1
+    trigger_signal1: J51_1
+    use_dac: 'False'
+    use_ref_clk: 'False'
+    verbosity: warning
+    xb200: none
+  states:
+    bus_sink: false
+    bus_source: false
+    bus_structure: null
+    coordinate: [48, 124.0]
+    rotation: 0
+    state: true
+- name: digital_ofdm_rx_0
+  id: digital_ofdm_rx
+  parameters:
+    affinity: ''
+    alias: ''
+    comment: ''
+    cp_len: '16'
+    fft_len: '64'
+    header_mod: '"BPSK"'
+    log: 'False'
+    maxoutbuf: '0'
+    minoutbuf: '0'
+    occupied_carriers: occupied_carriers
+    packet_len_key: '"packet_len"'
+    payload_mod: '"QPSK"'
+    pilot_carriers: pilot_carriers
+    pilot_symbols: pilot_symbols
+    scramble_bits: 'False'
+    sync_word1: sync_word1
+    sync_word2: sync_word2
+  states:
+    bus_sink: false
+    bus_source: false
+    bus_structure: null
+    coordinate: [264, 148.0]
+    rotation: 0
+    state: true
+- name: epy_block_0
+  id: epy_block
+  parameters:
+    _source_code: "\"\"\"\nEmbedded Python Blocks:\n\nEach time this file is saved,\
+      \ GRC will instantiate the first class it finds\nto get ports and parameters\
+      \ of your block. The arguments to __init__  will\nbe the parameters. All of\
+      \ them are required to have default values!\n\"\"\"\n\nimport numpy as np\n\
+      from gnuradio import gr\n\nimport pmt\nimport time\n\nclass blk(gr.sync_block):\
+      \  # other base classes are basic_block, decim_block, interp_block\n    \"\"\
+      \"Embedded Python Block example - a simple multiply const\"\"\"\n\n    def __init__(self):\n\
+      \        \"\"\"arguments to this function show up as parameters in GRC\"\"\"\
+      \n        gr.sync_block.__init__(\n            self,\n            name='Count\
+      \ Thruput',   # will show up in GRC\n            in_sig=[],\n            out_sig=[]\n\
+      \        )\n        self.message_port_register_in(pmt.intern('pdu'))\n     \
+      \   self.set_msg_handler(pmt.intern('pdu'), self.handle_msg)\n        self.count\
+      \ = 0\n        self.t = time.time()\n\n    def handle_msg(self, msg):\n    \
+      \    self.count += 1\n        if self.count % 500 == 0:\n            t = time.time()\n\
+      \            print(self.count, ':', t - self.t)\n            self.t = t\n"
+    affinity: ''
+    alias: ''
+    comment: ''
+    maxoutbuf: '0'
+    minoutbuf: '0'
+  states:
+    _io_cache: ('Count Thruput', 'blk', [], [('pdu', 'message', 1)], [], 'Embedded
+      Python Block example - a simple multiply const', [])
+    bus_sink: false
+    bus_source: false
+    bus_structure: null
+    coordinate: [744, 232.0]
+    rotation: 0
+    state: true
+- name: pdu_tagged_stream_to_pdu_0
+  id: pdu_tagged_stream_to_pdu
+  parameters:
+    affinity: ''
+    alias: ''
+    comment: ''
+    maxoutbuf: '0'
+    minoutbuf: '0'
+    tag: packet_len
+    type: byte
+  states:
+    bus_sink: false
+    bus_source: false
+    bus_structure: null
+    coordinate: [496, 228.0]
+    rotation: 0
+    state: true
+- name: zeromq_sub_source_0
+  id: zeromq_sub_source
+  parameters:
+    address: tcp://127.0.0.1:95000
+    affinity: ''
+    alias: ''
+    comment: ''
+    hwm: '-1'
+    key: ''
+    maxoutbuf: '0'
+    minoutbuf: '0'
+    pass_tags: 'False'
+    timeout: '100'
+    type: complex
+    vlen: '1'
+  states:
+    bus_sink: false
+    bus_source: false
+    bus_structure: null
+    coordinate: [24, 380.0]
+    rotation: 0
+    state: disabled
+
+connections:
+- [bladeRF_source_0, '0', digital_ofdm_rx_0, '0']
+- [digital_ofdm_rx_0, '0', pdu_tagged_stream_to_pdu_0, '0']
+- [pdu_tagged_stream_to_pdu_0, pdus, epy_block_0, pdu]
+- [zeromq_sub_source_0, '0', digital_ofdm_rx_0, '0']
+
+metadata:
+  file_format: 1

examples/cdc_pu_1chan_tx.grc

+options:
+  parameters:
+    author: ''
+    catch_exceptions: 'True'
+    category: '[GRC Hier Blocks]'
+    cmake_opt: ''
+    comment: ''
+    copyright: University of Melbourne
+    description: ''
+    gen_cmake: 'On'
+    gen_linking: dynamic
+    generate_options: qt_gui
+    hier_block_src_path: '.:'
+    id: cdc_pu_1chan_tx
+    max_nouts: '0'
+    output_language: python
+    placement: (0,0)
+    qt_qss_theme: ''
+    realtime_scheduling: ''
+    run: 'True'
+    run_command: '{python} -u {filename}'
+    run_options: prompt
+    sizing_mode: fixed
+    thread_safe_setters: ''
+    title: DSA Primary User Tx  - 1 Channel
+    window_size: ''
+  states:
+    bus_sink: false
+    bus_source: false
+    bus_structure: null
+    coordinate: [8, 8]
+    rotation: 0
+    state: enabled
+
+blocks:
+- name: duration_ms
+  id: variable
+  parameters:
+    comment: ''
+    value: '50'
+  states:
+    bus_sink: false
+    bus_source: false
+    bus_structure: null
+    coordinate: [632, 12.0]
+    rotation: 0
+    state: true
+- name: fft_len
+  id: variable
+  parameters:
+    comment: ''
+    value: '64'
+  states:
+    bus_sink: false
+    bus_source: false
+    bus_structure: null
+    coordinate: [24, 436.0]
+    rotation: 0
+    state: enabled
+- name: occupied_carriers
+  id: variable
+  parameters:
+    comment: ''
+    value: (list(range(-26, -21)) + list(range(-20, -7)) + list(range(-6, 0)) + list(range(1,
+      7)) + list(range(8, 21)) + list(range(22, 27)),)
+  states:
+    bus_sink: false
+    bus_source: false
+    bus_structure: null
+    coordinate: [384, 436.0]
+    rotation: 0
+    state: enabled
+- name: pdu_size
+  id: variable
+  parameters:
+    comment: ''
+    value: '260'
+  states:
+    bus_sink: false
+    bus_source: false
+    bus_structure: null
+    coordinate: [552, 12.0]
+    rotation: 0
+    state: enabled
+- name: pilot_carriers
+  id: variable
+  parameters:
+    comment: ''
+    value: ((-21, -7, 7, 21,),)
+  states:
+    bus_sink: false
+    bus_source: false
+    bus_structure: null
+    coordinate: [544, 436.0]
+    rotation: 0
+    state: enabled
+- name: pilot_symbols
+  id: variable
+  parameters:
+    comment: ''
+    value: ((1, 1, 1, -1,),)
+  states:
+    bus_sink: false
+    bus_source: false
+    bus_structure: null
+    coordinate: [672, 436.0]
+    rotation: 0
+    state: enabled
+- name: randomize
+  id: variable_qtgui_chooser
+  parameters:
+    comment: ''
+    gui_hint: ''
+    label: Randomize
+    label0: 'False'
+    label1: 'True'
+    label2: ''
+    label3: ''
+    label4: ''
+    labels: '[]'
+    num_opts: '2'
+    option0: '0'
+    option1: 'True'
+    option2: '2'
+    option3: '3'
+    option4: '4'
+    options: '[0, 1, 2]'
+    orient: Qt.QVBoxLayout
+    type: raw
+    value: 'False'
+    widget: combo_box
+  states:
+    bus_sink: false
+    bus_source: false
+    bus_structure: null
+    coordinate: [736, 12.0]
+    rotation: 0
+    state: true
+- name: rf_freq
+  id: variable_qtgui_range
+  parameters:
+    comment: ''
+    gui_hint: ''
+    label: RF Frequency
+    min_len: '200'
+    orient: QtCore.Qt.Horizontal
+    rangeType: float
+    start: 70e6
+    step: 1e3
+    stop: 6e9
+    value: 915e6
+    widget: counter
+  states:
+    bus_sink: false
+    bus_source: false
+    bus_structure: null
+    coordinate: [280, 12.0]
+    rotation: 0
+    state: true
+- name: samp_rate
+  id: variable
+  parameters:
+    comment: ''
+    value: '1000000'
+  states:
+    bus_sink: false
+    bus_source: false
+    bus_structure: null
+    coordinate: [182, 8]
+    rotation: 0
+    state: enabled
+- name: scenario
+  id: variable_qtgui_range
+  parameters:
+    comment: ''
+    gui_hint: ''
+    label: Scenario
+    min_len: '200'
+    orient: QtCore.Qt.Horizontal
+    rangeType: int
+    start: '0'
+    step: '1'
+    stop: '1'
+    value: '1'
+    widget: counter
+  states:
+    bus_sink: false
+    bus_source: false
+    bus_structure: null
+    coordinate: [872, 12.0]
+    rotation: 0
+    state: true
+- name: sync_word1
+  id: variable
+  parameters:
+    comment: ''
+    value: '[0., 0., 0., 0., 0., 0., 0., 1.41421356, 0., -1.41421356, 0., 1.41421356,
+      0., -1.41421356, 0., -1.41421356, 0., -1.41421356, 0., 1.41421356, 0., -1.41421356,
+      0., 1.41421356, 0., -1.41421356, 0., -1.41421356, 0., -1.41421356, 0., -1.41421356,
+      0., 1.41421356, 0., -1.41421356, 0., 1.41421356, 0., 1.41421356, 0., 1.41421356,
+      0., -1.41421356, 0., 1.41421356, 0., 1.41421356, 0., 1.41421356, 0., -1.41421356,
+      0., 1.41421356, 0., 1.41421356, 0., 1.41421356, 0., 0., 0., 0., 0., 0.]'
+  states:
+    bus_sink: false
+    bus_source: false
+    bus_structure: null
+    coordinate: [96, 436.0]
+    rotation: 0
+    state: enabled
+- name: sync_word2
+  id: variable
+  parameters:
+    comment: ''
+    value: '[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), 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]'
+  states:
+    bus_sink: false
+    bus_source: false
+    bus_structure: null
+    coordinate: [240, 436.0]
+    rotation: 0
+    state: enabled
+- name: tx_gain
+  id: variable_qtgui_range
+  parameters:
+    comment: ''
+    gui_hint: ''
+    label: Tx Gain
+    min_len: '200'
+    orient: QtCore.Qt.Horizontal
+    rangeType: float
+    start: '-23'
+    step: '1'
+    stop: '66'
+    value: '30'
+    widget: counter
+  states:
+    bus_sink: false
+    bus_source: false
+    bus_structure: null
+    coordinate: [408, 12.0]
+    rotation: 0
+    state: true
+- name: analog_random_source_x_0
+  id: analog_random_source_x
+  parameters:
+    affinity: ''
+    alias: ''
+    comment: ''
+    max: '256'
+    maxoutbuf: '0'
+    min: '0'
+    minoutbuf: '0'
+    num_samps: '1000'
+    repeat: 'True'
+    type: byte
+  states:
+    bus_sink: false
+    bus_source: false
+    bus_structure: null
+    coordinate: [32, 236.0]
+    rotation: 0
+    state: true
+- name: bladeRF_sink_0
+  id: bladeRF_sink
+  parameters:
+    affinity: ''
+    alias: ''
+    bias_tee0: 'False'
+    bias_tee1: 'False'
+    bw: '0'
+    comment: ''
+    dac: '10000'
+    dc_calibration: LPF_TUNING
+    device_id: '0'
+    fpga_image: ''
+    fpga_reload: 'False'
+    freq: rf_freq
+    gain0: tx_gain
+    gain1: '10'
+    if_gain0: '0'
+    if_gain1: '20'
+    in_clk: ONBOARD
+    lpf_mode: disabled
+    maxoutbuf: '0'
+    metadata: 'False'
+    minoutbuf: '0'
+    nchan: '1'
+    out_clk: 'False'
+    ref_clk: '0'
+    sample_rate: samp_rate
+    sampling: internal
+    show_pmic: 'False'
+    smb: '0'
+    tamer: internal
+    trigger0: 'False'
+    trigger1: 'False'
+    trigger_role0: master
+    trigger_role1: master
+    trigger_signal0: J51_1
+    trigger_signal1: J51_1
+    use_dac: 'False'
+    use_ref_clk: 'False'
+    verbosity: warning
+    xb200: none
+  states:
+    bus_sink: false
+    bus_source: false
+    bus_structure: null
+    coordinate: [1072, 164.0]
+    rotation: 0
+    state: enabled
+- name: blocks_multiply_const_vxx_0
+  id: blocks_multiply_const_vxx
+  parameters:
+    affinity: ''
+    alias: ''
+    comment: ''
+    const: '0.025'
+    maxoutbuf: '0'
+    minoutbuf: '0'
+    type: complex
+    vlen: '1'
+  states:
+    bus_sink: false
+    bus_source: false
+    bus_structure: null
+    coordinate: [656, 260.0]
+    rotation: 0
+    state: true
+- name: blocks_stream_to_tagged_stream_0
+  id: blocks_stream_to_tagged_stream
+  parameters:
+    affinity: ''
+    alias: ''
+    comment: ''
+    len_tag_key: '"packet_len"'
+    maxoutbuf: '0'
+    minoutbuf: '0'
+    packet_len: pdu_size
+    type: byte
+    vlen: '1'
+  states:
+    bus_sink: false
+    bus_source: false
+    bus_structure: null
+    coordinate: [200, 252.0]
+    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: [1040, 404.0]
+    rotation: 0
+    state: disabled
+- name: cdc_dsa_pu_scenario_cc_0
+  id: cdc_dsa_pu_scenario_cc
+  parameters:
+    affinity: ''
+    alias: ''
+    comment: ''
+    duration_ms: duration_ms
+    maxoutbuf: '0'
+    minoutbuf: '0'
+    num_channels: '1'
+    random: randomize
+    samp_rate: samp_rate
+    scenario: scenario
+    seed: '1'
+  states:
+    bus_sink: false
+    bus_source: false
+    bus_structure: null
+    coordinate: [816, 220.0]
+    rotation: 0
+    state: enabled
+- name: digital_ofdm_tx_0
+  id: digital_ofdm_tx
+  parameters:
+    affinity: ''
+    alias: ''
+    comment: ''
+    cp_len: fft_len//4
+    fft_len: fft_len
+    header_mod: '"BPSK"'
+    log: 'True'
+    maxoutbuf: '0'
+    minoutbuf: '0'
+    occupied_carriers: occupied_carriers
+    packet_len_key: '"packet_len"'
+    payload_mod: '"QPSK"'
+    pilot_carriers: pilot_carriers
+    pilot_symbols: pilot_symbols
+    rolloff: '0'
+    scramble_bits: 'False'
+    sync_word1: sync_word1
+    sync_word2: sync_word2
+  states:
+    bus_sink: false
+    bus_source: false
+    bus_structure: null
+    coordinate: [432, 172.0]
+    rotation: 0
+    state: enabled
+- name: qtgui_freq_sink_x_0
+  id: qtgui_freq_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'
+    average: '1.0'
+    axislabels: 'True'
+    bw: samp_rate
+    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'
+    fc: '0'
+    fftsize: '1024'
+    freqhalf: 'True'
+    grid: 'False'
+    gui_hint: ''
+    label: Relative Gain
+    label1: ''
+    label10: ''''''
+    label2: ''''''
+    label3: ''''''
+    label4: ''''''
+    label5: ''''''
+    label6: ''''''
+    label7: ''''''
+    label8: ''''''
+    label9: ''''''
+    legend: 'True'
+    maxoutbuf: '0'
+    minoutbuf: '0'
+    name: '""'
+    nconnections: '1'
+    norm_window: 'False'
+    showports: 'False'
+    tr_chan: '0'
+    tr_level: '0.0'
+    tr_mode: qtgui.TRIG_MODE_FREE
+    tr_tag: '""'
+    type: complex
+    units: dB
+    update_time: '0.10'
+    width1: '1'
+    width10: '1'
+    width2: '1'
+    width3: '1'
+    width4: '1'
+    width5: '1'
+    width6: '1'
+    width7: '1'
+    width8: '1'
+    width9: '1'
+    wintype: window.WIN_BLACKMAN_hARRIS
+    ymax: '10'
+    ymin: '-140'
+  states:
+    bus_sink: false
+    bus_source: false
+    bus_structure: null
+    coordinate: [1072, 84.0]
+    rotation: 0
+    state: enabled
+- 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: 2080*2
+    srate: samp_rate
+    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: '0.1'
+    tr_mode: qtgui.TRIG_MODE_TAG
+    tr_slope: qtgui.TRIG_SLOPE_POS
+    tr_tag: '"packet_len"'
+    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'
+    ylabel: Amplitude
+    ymax: '1'
+    ymin: '-1'
+    yunit: '""'
+  states:
+    bus_sink: false
+    bus_source: false
+    bus_structure: null
+    coordinate: [1072, 4.0]
+    rotation: 0
+    state: enabled
+- name: zeromq_pub_sink_0
+  id: zeromq_pub_sink
+  parameters:
+    address: tcp://127.0.0.1:95000
+    affinity: ''
+    alias: ''
+    comment: ''
+    hwm: '-1'
+    key: ''
+    pass_tags: 'False'
+    timeout: '100'
+    type: complex
+    vlen: '1'
+  states:
+    bus_sink: false
+    bus_source: false
+    bus_structure: null
+    coordinate: [1200, 380.0]
+    rotation: 0
+    state: disabled
+
+connections:
+- [analog_random_source_x_0, '0', blocks_stream_to_tagged_stream_0, '0']
+- [blocks_multiply_const_vxx_0, '0', cdc_dsa_pu_scenario_cc_0, '0']
+- [blocks_stream_to_tagged_stream_0, '0', digital_ofdm_tx_0, '0']
+- [blocks_throttle_0, '0', zeromq_pub_sink_0, '0']
+- [cdc_dsa_pu_scenario_cc_0, '0', bladeRF_sink_0, '0']
+- [cdc_dsa_pu_scenario_cc_0, '0', blocks_throttle_0, '0']
+- [cdc_dsa_pu_scenario_cc_0, '0', qtgui_freq_sink_x_0, '0']
+- [cdc_dsa_pu_scenario_cc_0, '0', qtgui_time_sink_x_0, '0']
+- [digital_ofdm_tx_0, '0', blocks_multiply_const_vxx_0, '0']
+
+metadata:
+  file_format: 1