options:
  parameters:
    author: ''
    catch_exceptions: 'True'
    category: '[GRC Hier Blocks]'
    cmake_opt: ''
    comment: ''
    copyright: ''
    description: ''
    gen_cmake: 'On'
    gen_linking: dynamic
    generate_options: qt_gui
    hier_block_src_path: '.:'
    id: waterfall
    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: Not titled yet
    window_size: (1000,1000)
  states:
    bus_sink: false
    bus_source: false
    bus_structure: null
    coordinate: [8, 8]
    rotation: 0
    state: enabled

blocks:
- name: btn_guard_fm_output
  id: variable_struct
  parameters:
    comment: ''
    field0: TYPE
    field1: Pressed
    field10: ''
    field11: ''
    field12: ''
    field13: ''
    field14: ''
    field15: ''
    field16: ''
    field17: ''
    field18: ''
    field19: ''
    field2: Released
    field3: GUIHint
    field4: CALLBACK
    field5: Label
    field6: ''
    field7: ''
    field8: ''
    field9: ''
    value0: '"QT GUI Toggle Button"'
    value1: 'True'
    value10: '0'
    value11: '0'
    value12: '0'
    value13: '0'
    value14: '0'
    value15: '0'
    value16: '0'
    value17: '0'
    value18: '0'
    value19: '0'
    value2: 'False'
    value3: '"ranges@1"'
    value4: '"tb.epy_block_0.set"'
    value5: '"Listen"'
    value6: '0'
    value7: '0'
    value8: '0'
    value9: '0'
  states:
    bus_sink: false
    bus_source: false
    bus_structure: null
    coordinate: [744, 524.0]
    rotation: 0
    state: enabled
- name: btn_guard_fm_output_0
  id: variable_struct
  parameters:
    comment: ''
    field0: TYPE
    field1: Pressed
    field10: ''
    field11: ''
    field12: ''
    field13: ''
    field14: ''
    field15: ''
    field16: ''
    field17: ''
    field18: ''
    field19: ''
    field2: Released
    field3: GUIHint
    field4: CALLBACK
    field5: Label
    field6: ''
    field7: ''
    field8: ''
    field9: ''
    value0: '"QT GUI Toggle Button"'
    value1: 'True'
    value10: '0'
    value11: '0'
    value12: '0'
    value13: '0'
    value14: '0'
    value15: '0'
    value16: '0'
    value17: '0'
    value18: '0'
    value19: '0'
    value2: 'False'
    value3: '"ranges@0"'
    value4: '"tb.epy_block_0_0.set"'
    value5: "\"Listen \u0410\u041C\""
    value6: '0'
    value7: '0'
    value8: '0'
    value9: '0'
  states:
    bus_sink: false
    bus_source: false
    bus_structure: null
    coordinate: [424, 652.0]
    rotation: 0
    state: enabled
- name: freq
  id: variable
  parameters:
    comment: ''
    value: freq_slider*1e6+freq_slider_fine*1e6
  states:
    bus_sink: false
    bus_source: false
    bus_structure: null
    coordinate: [32, 284.0]
    rotation: 0
    state: enabled
- name: freq_slider
  id: variable
  parameters:
    comment: ''
    value: '88'
  states:
    bus_sink: false
    bus_source: false
    bus_structure: null
    coordinate: [328, 348.0]
    rotation: 0
    state: enabled
- name: freq_slider_all
  id: variable_struct
  parameters:
    comment: ''
    field0: TYPE
    field1: Label
    field10: ''
    field11: ''
    field12: ''
    field13: ''
    field14: ''
    field15: ''
    field16: ''
    field17: ''
    field18: ''
    field19: ''
    field2: DefaultValue
    field3: Start
    field4: Stop
    field5: Step
    field6: GUIHint
    field7: CALLBACK
    field8: ''
    field9: ''
    value0: '"QT GUI Range"'
    value1: '"MHZ"'
    value10: '0'
    value11: '0'
    value12: '0'
    value13: '0'
    value14: '0'
    value15: '0'
    value16: '0'
    value17: '0'
    value18: '0'
    value19: '0'
    value2: '24'
    value3: '24'
    value4: '1766'
    value5: '1'
    value6: '"ranges@0"'
    value7: '"tb.set_freq_slider"'
    value8: '0'
    value9: '0'
  states:
    bus_sink: false
    bus_source: false
    bus_structure: null
    coordinate: [424, 348.0]
    rotation: 0
    state: enabled
- name: freq_slider_fine
  id: variable_qtgui_range
  parameters:
    comment: ''
    gui_hint: ranges@0
    label: khz
    min_len: '200'
    orient: QtCore.Qt.Horizontal
    rangeType: float
    start: '-0.9'
    step: '0.01'
    stop: '0.9'
    value: '0'
    widget: counter_slider
  states:
    bus_sink: false
    bus_source: false
    bus_structure: null
    coordinate: [424, 524.0]
    rotation: 0
    state: enabled
- name: freq_slider_fm
  id: variable_struct
  parameters:
    comment: ''
    field0: TYPE
    field1: Label
    field10: ''
    field11: ''
    field12: ''
    field13: ''
    field14: ''
    field15: ''
    field16: ''
    field17: ''
    field18: ''
    field19: ''
    field2: DefaultValue
    field3: Start
    field4: Stop
    field5: Step
    field6: GUIHint
    field7: CALLBACK
    field8: ''
    field9: ''
    value0: '"QT GUI Range"'
    value1: '"MHZ"'
    value10: '0'
    value11: '0'
    value12: '0'
    value13: '0'
    value14: '0'
    value15: '0'
    value16: '0'
    value17: '0'
    value18: '0'
    value19: '0'
    value2: '88'
    value3: '87.5'
    value4: '108'
    value5: '0.1'
    value6: '"ranges@1"'
    value7: '"tb.set_freq_slider"'
    value8: '0'
    value9: '0'
  states:
    bus_sink: false
    bus_source: false
    bus_structure: null
    coordinate: [744, 348.0]
    rotation: 0
    state: enabled
- name: samp_rate
  id: variable
  parameters:
    comment: ''
    value: 2.4*1e6
  states:
    bus_sink: false
    bus_source: false
    bus_structure: null
    coordinate: [32, 220.0]
    rotation: 0
    state: enabled
- name: variable_qtgui_label_0
  id: variable_qtgui_label
  parameters:
    comment: ''
    formatter: None
    gui_hint: ''
    label: Center Frequency
    type: real
    value: freq
  states:
    bus_sink: false
    bus_source: false
    bus_structure: null
    coordinate: [424, 92.0]
    rotation: 0
    state: enabled
- name: analog_am_demod_cf_0
  id: analog_am_demod_cf
  parameters:
    affinity: ''
    alias: ''
    audio_decim: '1'
    audio_pass: '5000'
    audio_stop: '5500'
    chan_rate: 0.048*1e6
    comment: ''
    maxoutbuf: '0'
    minoutbuf: '0'
  states:
    bus_sink: false
    bus_source: false
    bus_structure: null
    coordinate: [1672, 340.0]
    rotation: 0
    state: enabled
- name: analog_fm_demod_cf_0
  id: analog_fm_demod_cf
  parameters:
    affinity: ''
    alias: ''
    audio_decim: '10'
    audio_pass: '15000'
    audio_stop: '16000'
    chan_rate: samp_rate/5
    comment: ''
    deviation: '75000'
    gain: '1.0'
    maxoutbuf: '0'
    minoutbuf: '0'
    tau: 75e-6
  states:
    bus_sink: false
    bus_source: false
    bus_structure: null
    coordinate: [1664, 100.0]
    rotation: 0
    state: enabled
- name: analog_wfm_rcv_0
  id: analog_wfm_rcv
  parameters:
    affinity: ''
    alias: ''
    audio_decimation: '10'
    comment: ''
    maxoutbuf: '0'
    minoutbuf: '0'
    quad_rate: samp_rate/5
  states:
    bus_sink: false
    bus_source: false
    bus_structure: null
    coordinate: [1656, 12.0]
    rotation: 0
    state: disabled
- name: audio_sink_0
  id: audio_sink
  parameters:
    affinity: ''
    alias: ''
    comment: ''
    device_name: ''
    num_inputs: '1'
    ok_to_block: 'True'
    samp_rate: '48000'
  states:
    bus_sink: false
    bus_source: false
    bus_structure: null
    coordinate: [1968, 152.0]
    rotation: 0
    state: enabled
- name: audio_sink_1
  id: audio_sink
  parameters:
    affinity: ''
    alias: ''
    comment: ''
    device_name: ''
    num_inputs: '1'
    ok_to_block: 'True'
    samp_rate: '48000'
  states:
    bus_sink: false
    bus_source: false
    bus_structure: null
    coordinate: [1968, 372.0]
    rotation: 0
    state: enabled
- name: blocks_multiply_const_vxx_0
  id: blocks_multiply_const_vxx
  parameters:
    affinity: ''
    alias: ''
    comment: ''
    const: '20'
    maxoutbuf: '0'
    minoutbuf: '0'
    type: complex
    vlen: '1'
  states:
    bus_sink: false
    bus_source: false
    bus_structure: null
    coordinate: [1592, 524.0]
    rotation: 0
    state: enabled
- name: epy_block_0
  id: epy_block
  parameters:
    _source_code: "import numpy as np\nfrom gnuradio import gr\n\nclass FMDemodulateGuard(gr.sync_block):\n\
      \tdef __init__(self):\n\t\t\"\"\"arguments to this function show up as parameters\
      \ in GRC\"\"\"\n\t\tgr.sync_block.__init__(\n\t\t\tself,\n\t\t\tname='FM Demodulate\
      \ guard',   # will show up in GRC\n\t\t\tin_sig=[np.complex64],\n\t\t\tout_sig=[np.complex64]\n\
      \t\t)\n\t\tself.passthrough = False\n\n\tdef set(self, value):\n\t\tself.passthrough\
      \ = value\n\t\tprint(self.passthrough)\n\n\tdef work(self, input_items, output_items):\n\
      \t\tif self.passthrough:\n\t\t\toutput_items[0][:] = input_items[0]\n\t\telse:\n\
      \t\t\toutput_items[0][:] = np.array([0+0j])\n\t\treturn len(output_items[0])\n"
    affinity: ''
    alias: ''
    comment: ''
    maxoutbuf: '0'
    minoutbuf: '0'
  states:
    _io_cache: ('FM Demodulate guard', 'FMDemodulateGuard', [], [('0', 'complex',
      1)], [('0', 'complex', 1)], 'arguments to this function show up as parameters
      in GRC', [])
    bus_sink: false
    bus_source: false
    bus_structure: null
    coordinate: [1096, 152.0]
    rotation: 0
    state: enabled
- name: epy_block_0_0
  id: epy_block
  parameters:
    _source_code: "import numpy as np\nfrom gnuradio import gr\n\nclass \u0410\u041C\
      DemodulateGuard(gr.sync_block):\n\tdef __init__(self):\n\t\t\"\"\"arguments\
      \ to this function show up as parameters in GRC\"\"\"\n\t\tgr.sync_block.__init__(\n\
      \t\t\tself,\n\t\t\tname='\u0410\u041C Demodulate guard',   # will show up in\
      \ GRC\n\t\t\tin_sig=[np.complex64],\n\t\t\tout_sig=[np.complex64]\n\t\t)\n\t\
      \tself.passthrough = False\n\n\tdef set(self, value):\n\t\tself.passthrough\
      \ = value\n\t\tprint(self.passthrough)\n\n\tdef work(self, input_items, output_items):\n\
      \t\tif self.passthrough:\n\t\t\toutput_items[0][:] = input_items[0]\n\t\telse:\n\
      \t\t\toutput_items[0][:] = np.array([0+0j])\n\t\treturn len(output_items[0])\n"
    affinity: ''
    alias: ''
    comment: ''
    maxoutbuf: '0'
    minoutbuf: '0'
  states:
    _io_cache: "('\u0410\u041C Demodulate guard', '\u0410\u041CDemodulateGuard', [],\
      \ [('0', 'complex', 1)], [('0', 'complex', 1)], 'arguments to this function\
      \ show up as parameters in GRC', [])"
    bus_sink: false
    bus_source: false
    bus_structure: null
    coordinate: [1096, 224.0]
    rotation: 0
    state: enabled
- name: low_pass_filter_0
  id: low_pass_filter
  parameters:
    affinity: ''
    alias: ''
    beta: '6.76'
    comment: ''
    cutoff_freq: 0.05*1e6
    decim: '5'
    gain: '1'
    interp: '1'
    maxoutbuf: '0'
    minoutbuf: '0'
    samp_rate: samp_rate
    type: fir_filter_ccf
    width: 0.01*1e6
    win: window.WIN_HAMMING
  states:
    bus_sink: false
    bus_source: false
    bus_structure: null
    coordinate: [1360, 108.0]
    rotation: 0
    state: enabled
- name: low_pass_filter_0_0
  id: low_pass_filter
  parameters:
    affinity: ''
    alias: ''
    beta: '6.76'
    comment: ''
    cutoff_freq: 0.006*1e6
    decim: '50'
    gain: '1'
    interp: '1'
    maxoutbuf: '0'
    minoutbuf: '0'
    samp_rate: samp_rate
    type: fir_filter_ccf
    width: 0.002*1e6
    win: window.WIN_HAMMING
  states:
    bus_sink: false
    bus_source: false
    bus_structure: null
    coordinate: [1376, 324.0]
    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: 'False'
    bw: samp_rate/50
    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: ranges@1
    label: Relative Gain
    label1: ''
    label10: ''''''
    label2: ''''''
    label3: ''''''
    label4: ''''''
    label5: ''''''
    label6: ''''''
    label7: ''''''
    label8: ''''''
    label9: ''''''
    legend: 'False'
    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: float
    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: [1968, 228.0]
    rotation: 0
    state: enabled
- name: qtgui_waterfall_sink_x_0
  id: qtgui_waterfall_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'
    axislabels: 'True'
    bw: samp_rate
    color1: '0'
    color10: '0'
    color2: '0'
    color3: '0'
    color4: '0'
    color5: '0'
    color6: '0'
    color7: '0'
    color8: '0'
    color9: '0'
    comment: ''
    fc: freq
    fftsize: '1024'
    freqhalf: 'True'
    grid: 'True'
    gui_hint: ''
    int_max: '10'
    int_min: '-140'
    label1: ''
    label10: ''
    label2: ''
    label3: ''
    label4: ''
    label5: ''
    label6: ''
    label7: ''
    label8: ''
    label9: ''
    legend: 'True'
    maxoutbuf: '0'
    minoutbuf: '0'
    name: '""'
    nconnections: '1'
    showports: 'False'
    type: complex
    update_time: '0.02'
    wintype: window.WIN_BLACKMAN_hARRIS
  states:
    bus_sink: false
    bus_source: false
    bus_structure: null
    coordinate: [416, 12.0]
    rotation: 0
    state: enabled
- name: ranges
  id: qtgui_tab_widget
  parameters:
    alias: ''
    comment: ''
    gui_hint: ''
    label0: All
    label1: FM
    label10: Tab 10
    label11: Tab 11
    label12: Tab 12
    label13: Tab 13
    label14: Tab 14
    label15: Tab 15
    label16: Tab 16
    label17: Tab 17
    label18: Tab 18
    label19: Tab 19
    label2: Tab 2
    label3: Tab 3
    label4: Tab 4
    label5: Tab 5
    label6: Tab 6
    label7: Tab 7
    label8: Tab 8
    label9: Tab 9
    num_tabs: '2'
  states:
    bus_sink: false
    bus_source: false
    bus_structure: null
    coordinate: [424, 252.0]
    rotation: 0
    state: enabled
- name: snippet_0
  id: snippet
  parameters:
    alias: ''
    code: "if 'QtCore' not in sys.modules:\n\tfrom PyQt5 import QtCore\n# Libraries\n\
      def init_lib(lib):\n\tlib.tb = self\n\tlib.Qt = Qt\n\tlib.QtCore = QtCore\n\t\
      lib.qtgui = qtgui\ninit_lib(userlib)\n# Components (modules which aren't libraries)\n\
      def init_module(module):\n\tmodule.tb = self\n\tmodule.Qt = Qt\n\tmodule.userlib\
      \ = userlib\n\tmodule.init()\ninit_module(struct_widgets)"
    comment: Inits user modules
    priority: '0'
    section: main_after_init
  states:
    bus_sink: false
    bus_source: false
    bus_structure: null
    coordinate: [32, 548.0]
    rotation: 0
    state: enabled
- name: soapy_rtlsdr_source_0
  id: soapy_rtlsdr_source
  parameters:
    affinity: ''
    agc: 'False'
    alias: ''
    bias: 'False'
    bufflen: '16384'
    center_freq: freq
    comment: ''
    dev_args: ''
    freq_correction: '0'
    gain: '20'
    maxoutbuf: '0'
    minoutbuf: '0'
    samp_rate: samp_rate
    type: fc32
  states:
    bus_sink: false
    bus_source: false
    bus_structure: null
    coordinate: [32, 156.0]
    rotation: 0
    state: enabled
- name: struct_widgets
  id: epy_module
  parameters:
    alias: ''
    comment: 'Struct Variables with an attribute "TYPE" will be used for

      the creation of a QT widget by the same name.'
    source_code: "def init():\n\tfor name,struct in vars(tb).items():\n\t\tif hasattr(struct,\
      \ 'TYPE'):\n\t\t\tmatch struct.TYPE:\n\t\t\t\tcase 'QT GUI Range':\n\t\t\t\t\
      \tuserlib.new_widget_cs(\n\t\t\t\t\t\teval(getattr(struct, 'CALLBACK', \"lambda:\
      \ default_callback(name)\")),\n\t\t\t\t\t\tgetattr(struct, 'Label', name),\n\
      \t\t\t\t\t\tgetattr(struct, 'DefaultValue', 50),\n\t\t\t\t\t\tgetattr(struct,\
      \ 'Start', 0),\n\t\t\t\t\t\tgetattr(struct, 'Stop', 100),\n\t\t\t\t\t\tgetattr(struct,\
      \ 'Step', 1),\n\t\t\t\t\t\tgetattr(struct, 'MinLen', 200),\n\t\t\t\t\t\tgetattr(struct,\
      \ 'GUIHint', \"\")\n\t\t\t\t\t)\n\t\t\t\tcase 'QT GUI Toggle Button':\n\t\t\t\
      \t\tuserlib.new_toggle_button(\n\t\t\t\t\t\teval(getattr(struct, 'CALLBACK',\
      \ f'lambda _: default_callback(\"{name}\")')),\n\t\t\t\t\t\tgetattr(struct,\
      \ 'Label', name),\n\t\t\t\t\t\tgetattr(struct, 'Pressed', 1),\n\t\t\t\t\t\t\
      getattr(struct, 'Released', 0),\n\t\t\t\t\t\tgetattr(struct, 'InitiallyPressed',\
      \ False),\n\t\t\t\t\t\tgetattr(struct, 'GUIHint', \"\")\n\t\t\t\t\t)\n\t\t\t\
      \tcase _:\n\t\t\t\t\traise ValueError(f'Unknown TYPE \"{struct.TYPE}\"!')\n\n\
      def default_callback(name):\n\tprint(f'Callback for \"{name}\" was issued!')\n"
  states:
    bus_sink: false
    bus_source: false
    bus_structure: null
    coordinate: [32, 708.0]
    rotation: 0
    state: enabled
- name: userlib
  id: epy_module
  parameters:
    alias: ''
    comment: Defines useful functions
    source_code: "def new_button(id, callback):\n\t_btn = Qt.QPushButton(id)\n\t_btn.released.connect(callback)\n\
      \ttb.top_layout.addWidget(_btn)\n\ndef new_widget_cs(callback, label, default,\
      \ start, stop, step, min_len, hint):\n\t_range = qtgui.Range(start, stop, step,\
      \ default, min_len)\n\t_slider_win = qtgui.RangeWidget(_range, callback, label,\
      \ \"counter_slider\", float, QtCore.Qt.Horizontal)\n\tadd_widget_from_hint(_slider_win,\
      \ hint)\n\ndef new_toggle_button(callback, label, pressed, released, initially_pressed,\
      \ hint):\n\t\t_button = qtgui.ToggleButton(\n\t\t\tcallback, \n\t\t\tlabel,\n\
      \t\t\t{'Pressed': pressed, 'Released': released},\n\t\t\tinitially_pressed,\n\
      \t\t\t'value')\n\t\t_button.setColors(\"default\", \"default\", \"default\"\
      , \"default\")\n\n\t\tadd_widget_from_hint(_button, hint)\n\ndef add_widget_from_hint(widget,\
      \ hint):\n\tif hint == \"\" or hint == None:\n\t\treturn tb.top_layout.addWidget(widget)\n\
      \n\ttabs = hint.split('@')\n\tif len(tabs) == 2:\n\t\tgetattr(tb, tabs[0] +\
      \ '_layout_' + tabs[1], None).addWidget(widget)\n\telse:\n\t\traise ValueError(f'Invalid\
      \ GUI hint \"{hint}\"!')\n"
  states:
    bus_sink: false
    bus_source: false
    bus_structure: null
    coordinate: [32, 636.0]
    rotation: 0
    state: enabled

connections:
- [analog_am_demod_cf_0, '0', audio_sink_1, '0']
- [analog_fm_demod_cf_0, '0', audio_sink_0, '0']
- [analog_fm_demod_cf_0, '0', qtgui_freq_sink_x_0, '0']
- [analog_wfm_rcv_0, '0', audio_sink_0, '0']
- [analog_wfm_rcv_0, '0', qtgui_freq_sink_x_0, '0']
- [blocks_multiply_const_vxx_0, '0', analog_am_demod_cf_0, '0']
- [epy_block_0, '0', low_pass_filter_0, '0']
- [epy_block_0_0, '0', low_pass_filter_0_0, '0']
- [low_pass_filter_0, '0', analog_fm_demod_cf_0, '0']
- [low_pass_filter_0, '0', analog_wfm_rcv_0, '0']
- [low_pass_filter_0_0, '0', blocks_multiply_const_vxx_0, '0']
- [soapy_rtlsdr_source_0, '0', epy_block_0, '0']
- [soapy_rtlsdr_source_0, '0', epy_block_0_0, '0']
- [soapy_rtlsdr_source_0, '0', qtgui_waterfall_sink_x_0, '0']

metadata:
  file_format: 1
  grc_version: 3.10.12.0