options:
  parameters:
    author: Barry Duggan
    catch_exceptions: 'True'
    category: '[GRC Hier Blocks]'
    cmake_opt: ''
    comment: ''
    copyright: ''
    description: NBFM transmitter
    gen_cmake: 'On'
    gen_linking: dynamic
    generate_options: qt_gui
    hier_block_src_path: '.:'
    id: NFM_xmt
    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: NFM_xmt
    window_size: ''
  states:
    bus_sink: false
    bus_source: false
    bus_structure: null
    coordinate: [16, 32.0]
    rotation: 0
    state: enabled

blocks:
- name: df
  id: variable_qtgui_range
  parameters:
    comment: ''
    gui_hint: ''
    label: ''
    min_len: '200'
    orient: QtCore.Qt.Horizontal
    rangeType: float
    start: '0'
    step: '0.001'
    stop: '0.02'
    value: '0'
    widget: counter_slider
  states:
    bus_sink: false
    bus_source: false
    bus_structure: null
    coordinate: [168, 296.0]
    rotation: 0
    state: true
- name: freq
  id: variable_qtgui_range
  parameters:
    comment: ''
    gui_hint: ''
    label: ''
    min_len: '200'
    orient: QtCore.Qt.Horizontal
    rangeType: float
    start: '0'
    step: '1'
    stop: samp_rate/2
    value: '440'
    widget: counter_slider
  states:
    bus_sink: false
    bus_source: false
    bus_structure: null
    coordinate: [672, 64.0]
    rotation: 0
    state: true
- name: if_rate
  id: variable
  parameters:
    comment: ''
    value: int(usrp_rate/3)
  states:
    bus_sink: false
    bus_source: false
    bus_structure: null
    coordinate: [376, 32.0]
    rotation: 0
    state: true
- name: noise
  id: variable_qtgui_range
  parameters:
    comment: ''
    gui_hint: ''
    label: ''
    min_len: '200'
    orient: QtCore.Qt.Horizontal
    rangeType: float
    start: '0'
    step: '0.01'
    stop: '2'
    value: '0.3'
    widget: counter_slider
  states:
    bus_sink: false
    bus_source: false
    bus_structure: null
    coordinate: [8, 296.0]
    rotation: 0
    state: true
- name: samp_rate
  id: variable
  parameters:
    comment: ''
    value: '48000'
  states:
    bus_sink: false
    bus_source: false
    bus_structure: null
    coordinate: [200, 32.0]
    rotation: 0
    state: enabled
- name: usrp_rate
  id: variable
  parameters:
    comment: ''
    value: '576000'
  states:
    bus_sink: false
    bus_source: false
    bus_structure: null
    coordinate: [288, 32.0]
    rotation: 0
    state: true
- name: analog_nbfm_rx_0
  id: analog_nbfm_rx
  parameters:
    affinity: ''
    alias: ''
    audio_rate: '48000'
    comment: ''
    max_dev: 5e3
    maxoutbuf: '0'
    minoutbuf: '0'
    quad_rate: if_rate
    tau: 75e-6
  states:
    bus_sink: false
    bus_source: false
    bus_structure: null
    coordinate: [696, 392.0]
    rotation: 0
    state: enabled
- name: analog_nbfm_tx_0
  id: analog_nbfm_tx
  parameters:
    affinity: ''
    alias: ''
    audio_rate: samp_rate
    comment: ''
    fh: '-1.0'
    max_dev: 5e3
    maxoutbuf: '0'
    minoutbuf: '0'
    quad_rate: if_rate
    tau: 75e-6
  states:
    bus_sink: false
    bus_source: false
    bus_structure: null
    coordinate: [280, 160.0]
    rotation: 0
    state: true
- name: analog_sig_source_x_1
  id: analog_sig_source_x
  parameters:
    affinity: ''
    alias: ''
    amp: '0.9'
    comment: ''
    freq: freq
    maxoutbuf: '0'
    minoutbuf: '0'
    offset: '0'
    phase: '0'
    samp_rate: samp_rate
    type: float
    waveform: analog.GR_COS_WAVE
  states:
    bus_sink: false
    bus_source: false
    bus_structure: null
    coordinate: [32, 152.0]
    rotation: 0
    state: true
- name: blocks_repeat_0_0
  id: blocks_repeat
  parameters:
    affinity: ''
    alias: ''
    comment: ''
    interp: (int)(usrp_rate/if_rate)
    maxoutbuf: '0'
    minoutbuf: '0'
    type: complex
    vlen: '1'
  states:
    bus_sink: false
    bus_source: false
    bus_structure: null
    coordinate: [752, 192.0]
    rotation: 0
    state: true
- name: blocks_throttle_0
  id: blocks_throttle
  parameters:
    affinity: ''
    alias: ''
    comment: ''
    ignoretag: 'True'
    maxoutbuf: '0'
    minoutbuf: '0'
    samples_per_second: usrp_rate
    type: complex
    vlen: '1'
  states:
    bus_sink: false
    bus_source: false
    bus_structure: null
    coordinate: [160, 416.0]
    rotation: 0
    state: true
- name: channels_channel_model_0
  id: channels_channel_model
  parameters:
    affinity: ''
    alias: ''
    block_tags: 'False'
    comment: ''
    epsilon: '1.0'
    freq_offset: df
    maxoutbuf: '0'
    minoutbuf: '0'
    noise_voltage: noise
    seed: '0'
    taps: 1.0 + 1.0j
  states:
    bus_sink: false
    bus_source: false
    bus_structure: null
    coordinate: [320, 376.0]
    rotation: 0
    state: true
- name: low_pass_filter_0
  id: low_pass_filter
  parameters:
    affinity: ''
    alias: ''
    beta: '6.76'
    comment: ''
    cutoff_freq: '5000'
    decim: '1'
    gain: '1'
    interp: '1'
    maxoutbuf: '0'
    minoutbuf: '0'
    samp_rate: if_rate
    type: fir_filter_ccf
    width: '2000'
    win: window.WIN_HAMMING
  states:
    bus_sink: false
    bus_source: false
    bus_structure: null
    coordinate: [552, 140.0]
    rotation: 0
    state: true
- name: low_pass_filter_1
  id: low_pass_filter
  parameters:
    affinity: ''
    alias: ''
    beta: '6.76'
    comment: ''
    cutoff_freq: samp_rate/6
    decim: int(usrp_rate/if_rate)
    gain: '1'
    interp: '1'
    maxoutbuf: '0'
    minoutbuf: '0'
    samp_rate: usrp_rate
    type: fir_filter_ccf
    width: samp_rate/64
    win: window.WIN_HAMMING
  states:
    bus_sink: false
    bus_source: false
    bus_structure: null
    coordinate: [520, 364.0]
    rotation: 0
    state: true
- 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: if_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: '3'
    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: [896, 272.0]
    rotation: 0
    state: true
- 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: '2'
    size: '1024'
    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: '0.0'
    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: '1'
    ymin: '-1'
    yunit: '""'
  states:
    bus_sink: false
    bus_source: false
    bus_structure: null
    coordinate: [888, 384.0]
    rotation: 0
    state: true
- name: virtual_sink_0
  id: virtual_sink
  parameters:
    alias: ''
    comment: ''
    stream_id: tag1
  states:
    bus_sink: false
    bus_source: false
    bus_structure: null
    coordinate: [904, 192.0]
    rotation: 0
    state: true
- name: virtual_source_0
  id: virtual_source
  parameters:
    alias: ''
    comment: ''
    stream_id: tag1
  states:
    bus_sink: false
    bus_source: false
    bus_structure: null
    coordinate: [8, 416.0]
    rotation: 0
    state: true

connections:
- [analog_nbfm_rx_0, '0', qtgui_time_sink_x_0, '1']
- [analog_nbfm_tx_0, '0', low_pass_filter_0, '0']
- [analog_nbfm_tx_0, '0', qtgui_freq_sink_x_0, '1']
- [analog_sig_source_x_1, '0', analog_nbfm_tx_0, '0']
- [analog_sig_source_x_1, '0', qtgui_time_sink_x_0, '0']
- [blocks_repeat_0_0, '0', virtual_sink_0, '0']
- [blocks_throttle_0, '0', channels_channel_model_0, '0']
- [channels_channel_model_0, '0', low_pass_filter_1, '0']
- [low_pass_filter_0, '0', blocks_repeat_0_0, '0']
- [low_pass_filter_0, '0', qtgui_freq_sink_x_0, '0']
- [low_pass_filter_1, '0', analog_nbfm_rx_0, '0']
- [low_pass_filter_1, '0', qtgui_freq_sink_x_0, '2']
- [virtual_source_0, '0', blocks_throttle_0, '0']

metadata:
  file_format: 1
  grc_version: 3.10.5.1