options:
  parameters:
    author: frohro
    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: SDR_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: SDR Receiver
    window_size: (1000,1000)
  states:
    bus_sink: false
    bus_source: false
    bus_structure: null
    coordinate: [8, 8]
    rotation: 0
    state: enabled

blocks:
- name: amplitude
  id: variable
  parameters:
    comment: ''
    value: '0.02'
  states:
    bus_sink: false
    bus_source: false
    bus_structure: null
    coordinate: [880, 12.0]
    rotation: 0
    state: true
- name: bp_taps
  id: variable_band_pass_filter_taps
  parameters:
    beta: '6.76'
    comment: ''
    gain: '1.0'
    high_cutoff_freq: '14000'
    low_cutoff_freq: '10000'
    samp_rate: samp_rate
    type: complex_band_pass
    width: '400'
    win: window.WIN_HAMMING
  states:
    bus_sink: false
    bus_source: false
    bus_structure: null
    coordinate: [472, 4.0]
    rotation: 0
    state: true
- name: freq
  id: variable
  parameters:
    comment: ''
    value: '11000'
  states:
    bus_sink: false
    bus_source: false
    bus_structure: null
    coordinate: [16, 108.0]
    rotation: 0
    state: true
- name: samp_rate
  id: variable
  parameters:
    comment: ''
    value: '48000'
  states:
    bus_sink: false
    bus_source: false
    bus_structure: null
    coordinate: [184, 12]
    rotation: 0
    state: enabled
- name: analog_sig_source_x_0
  id: analog_sig_source_x
  parameters:
    affinity: ''
    alias: ''
    amp: amplitude
    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: [40, 356.0]
    rotation: 0
    state: true
- name: analog_sig_source_x_1
  id: analog_sig_source_x
  parameters:
    affinity: ''
    alias: ''
    amp: amplitude
    comment: ''
    freq: freq
    maxoutbuf: '0'
    minoutbuf: '0'
    offset: '0'
    phase: '0'
    samp_rate: samp_rate
    type: float
    waveform: analog.GR_SIN_WAVE
  states:
    bus_sink: false
    bus_source: false
    bus_structure: null
    coordinate: [40, 500.0]
    rotation: 0
    state: true
- name: audio_sink_0
  id: audio_sink
  parameters:
    affinity: ''
    alias: ''
    comment: ''
    device_name: hw:1,0
    num_inputs: '2'
    ok_to_block: 'True'
    samp_rate: samp_rate
  states:
    bus_sink: false
    bus_source: false
    bus_structure: null
    coordinate: [968, 200.0]
    rotation: 0
    state: true
- name: audio_sink_0_0
  id: audio_sink
  parameters:
    affinity: ''
    alias: ''
    comment: ''
    device_name: hw:2,0
    num_inputs: '2'
    ok_to_block: 'True'
    samp_rate: samp_rate
  states:
    bus_sink: false
    bus_source: false
    bus_structure: null
    coordinate: [496, 432.0]
    rotation: 0
    state: true
- name: audio_source_0
  id: audio_source
  parameters:
    affinity: ''
    alias: ''
    comment: ''
    device_name: hw:1,0
    maxoutbuf: '0'
    minoutbuf: '0'
    num_outputs: '2'
    ok_to_block: 'True'
    samp_rate: samp_rate
  states:
    bus_sink: false
    bus_source: false
    bus_structure: null
    coordinate: [24, 172.0]
    rotation: 0
    state: true
- name: blocks_complex_to_float_0
  id: blocks_complex_to_float
  parameters:
    affinity: ''
    alias: ''
    comment: ''
    maxoutbuf: '0'
    minoutbuf: '0'
    vlen: '1'
  states:
    bus_sink: false
    bus_source: false
    bus_structure: null
    coordinate: [808, 200.0]
    rotation: 0
    state: true
- name: blocks_delay_0
  id: blocks_delay
  parameters:
    affinity: ''
    alias: ''
    comment: ''
    delay: '1'
    maxoutbuf: '0'
    minoutbuf: '0'
    num_ports: '1'
    type: float
    vlen: '1'
  states:
    bus_sink: false
    bus_source: false
    bus_structure: null
    coordinate: [192, 224.0]
    rotation: 0
    state: true
- name: blocks_float_to_complex_0
  id: blocks_float_to_complex
  parameters:
    affinity: ''
    alias: ''
    comment: ''
    maxoutbuf: '0'
    minoutbuf: '0'
    vlen: '1'
  states:
    bus_sink: false
    bus_source: false
    bus_structure: null
    coordinate: [208, 152.0]
    rotation: 0
    state: true
- name: blocks_float_to_complex_1
  id: blocks_float_to_complex
  parameters:
    affinity: ''
    alias: ''
    comment: ''
    maxoutbuf: '0'
    minoutbuf: '0'
    vlen: '1'
  states:
    bus_sink: false
    bus_source: false
    bus_structure: null
    coordinate: [328, 312.0]
    rotation: 0
    state: true
- name: blocks_freqshift_cc_0
  id: blocks_freqshift_cc
  parameters:
    affinity: ''
    alias: ''
    comment: ''
    freq: '-10000'
    maxoutbuf: '0'
    minoutbuf: '0'
    sample_rate: samp_rate
  states:
    bus_sink: false
    bus_source: false
    bus_structure: null
    coordinate: [624, 204.0]
    rotation: 0
    state: true
- name: fir_filter_xxx_0
  id: fir_filter_xxx
  parameters:
    affinity: ''
    alias: ''
    comment: ''
    decim: '1'
    maxoutbuf: '0'
    minoutbuf: '0'
    samp_delay: '0'
    taps: bp_taps
    type: ccc
  states:
    bus_sink: false
    bus_source: false
    bus_structure: null
    coordinate: [392, 204.0]
    rotation: 0
    state: true
- name: note_0
  id: note
  parameters:
    alias: ''
    comment: 'The transmitter (the bottom blocks) represents the TX and the QSD SDR
      Receiver you designed.

      The receiver (upper blocks) does what Quisk does, but in blocks so you can see
      and

      play with it.  Freq is the frequency of the signal from the receiver

      hardware coming into the sound card.  One signal is delayed by a quarter

      of a cycle (sine from cosine), as it would be from your hardware.

      In the computer the software side of the system is simulated.  It

      shifts the frequency down from 10 kHz to near DC, where it is played

      out the sound card.  You may need to change the sound card number hw:1,0 to
      hw:0,0, or

      hw:2.0, depending on the ALSA card number (assuming you or using Linux).  For

      other OSes, the sound card names will be different, and you will need to Google
      them.'
    note: You need the VIA as hw:2,0, the CMedia as hw:3,0, and built in as hw:1,0.
  states:
    bus_sink: false
    bus_source: false
    bus_structure: null
    coordinate: [672, 460.0]
    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: 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: '"Receiver Spectrum"'
    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: [304, 28.0]
    rotation: 0
    state: true
- name: qtgui_freq_sink_x_1
  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: '"Filtered RX Signal"'
    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: [696, 36.0]
    rotation: 0
    state: true
- name: qtgui_freq_sink_x_2
  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: '"Shifted to DC Signal"'
    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: [864, 92.0]
    rotation: 0
    state: true
- name: qtgui_sink_x_1_0
  id: qtgui_sink_x
  parameters:
    affinity: ''
    alias: ''
    bw: samp_rate
    comment: ''
    fc: '0'
    fftsize: '1024'
    gui_hint: ''
    maxoutbuf: '0'
    minoutbuf: '0'
    name: '"Signal Generators"'
    plotconst: 'True'
    plotfreq: 'True'
    plottime: 'True'
    plotwaterfall: 'True'
    rate: '10'
    showports: 'False'
    showrf: 'False'
    type: complex
    wintype: window.WIN_BLACKMAN_hARRIS
  states:
    bus_sink: false
    bus_source: false
    bus_structure: null
    coordinate: [648, 316.0]
    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: '1'
    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: 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: [400, 116.0]
    rotation: 0
    state: true

connections:
- [analog_sig_source_x_0, '0', audio_sink_0_0, '0']
- [analog_sig_source_x_0, '0', blocks_float_to_complex_1, '0']
- [analog_sig_source_x_1, '0', audio_sink_0_0, '1']
- [analog_sig_source_x_1, '0', blocks_float_to_complex_1, '1']
- [audio_source_0, '0', blocks_float_to_complex_0, '0']
- [audio_source_0, '1', blocks_delay_0, '0']
- [blocks_complex_to_float_0, '0', audio_sink_0, '0']
- [blocks_complex_to_float_0, '1', audio_sink_0, '1']
- [blocks_delay_0, '0', blocks_float_to_complex_0, '1']
- [blocks_float_to_complex_0, '0', fir_filter_xxx_0, '0']
- [blocks_float_to_complex_0, '0', qtgui_freq_sink_x_0, '0']
- [blocks_float_to_complex_0, '0', qtgui_time_sink_x_0, '0']
- [blocks_float_to_complex_1, '0', qtgui_sink_x_1_0, '0']
- [blocks_freqshift_cc_0, '0', blocks_complex_to_float_0, '0']
- [blocks_freqshift_cc_0, '0', qtgui_freq_sink_x_2, '0']
- [fir_filter_xxx_0, '0', blocks_freqshift_cc_0, '0']
- [fir_filter_xxx_0, '0', qtgui_freq_sink_x_1, '0']

metadata:
  file_format: 1