options:
  parameters:
    author: ''
    category: '[GRC Hier Blocks]'
    cmake_opt: ''
    comment: ''
    copyright: ''
    description: ''
    gen_cmake: 'On'
    gen_linking: dynamic
    generate_options: hb
    hier_block_src_path: '.:'
    id: hier_ifft_decoder
    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: ''
    window_size: 2000,2000
  states:
    bus_sink: false
    bus_source: false
    bus_structure: null
    coordinate: [8, 8]
    rotation: 0
    state: enabled

blocks:
- name: audio_decim
  id: variable
  parameters:
    comment: ''
    value: '5'
  states:
    bus_sink: false
    bus_source: false
    bus_structure: null
    coordinate: [646, 3]
    rotation: 0
    state: enabled
- name: audio_rate
  id: variable
  parameters:
    comment: ''
    value: '48000'
  states:
    bus_sink: false
    bus_source: false
    bus_structure: null
    coordinate: [870, 3]
    rotation: 0
    state: enabled
- name: baseband_rate
  id: variable
  parameters:
    comment: ''
    value: audio_rate*audio_decim
  states:
    bus_sink: false
    bus_source: false
    bus_structure: null
    coordinate: [359, 347]
    rotation: 0
    state: enabled
- name: bb_decim
  id: variable
  parameters:
    comment: ''
    value: '2'
  states:
    bus_sink: false
    bus_source: false
    bus_structure: null
    coordinate: [766, 3]
    rotation: 0
    state: enabled
- name: chan_rate
  id: variable
  parameters:
    comment: ''
    value: audio_rate*audio_decim*bb_decim
  states:
    bus_sink: false
    bus_source: false
    bus_structure: null
    coordinate: [264, 420.0]
    rotation: 0
    state: enabled
- name: chan_rate
  id: variable
  parameters:
    comment: ''
    value: int(600e3)
  states:
    bus_sink: false
    bus_source: false
    bus_structure: null
    coordinate: [335, 419]
    rotation: 0
    state: disabled
- name: fft19k_len
  id: variable
  parameters:
    comment: ''
    value: '2048'
  states:
    bus_sink: false
    bus_source: false
    bus_structure: null
    coordinate: [1152, 132]
    rotation: 0
    state: enabled
- name: analog_wfm_rcv_0_0
  id: analog_wfm_rcv
  parameters:
    affinity: ''
    alias: ''
    audio_decimation: bb_decim
    comment: ''
    maxoutbuf: '0'
    minoutbuf: '0'
    quad_rate: 2*baseband_rate
  states:
    bus_sink: false
    bus_source: false
    bus_structure: null
    coordinate: [359, 155]
    rotation: 0
    state: enabled
- name: blocks_complex_to_real_0
  id: blocks_complex_to_real
  parameters:
    affinity: ''
    alias: ''
    comment: ''
    maxoutbuf: '0'
    minoutbuf: '0'
    vlen: '1'
  states:
    bus_sink: false
    bus_source: false
    bus_structure: null
    coordinate: [1128, 240.0]
    rotation: 0
    state: disabled
- name: blocks_file_sink_0
  id: blocks_file_sink
  parameters:
    affinity: ''
    alias: ''
    append: 'False'
    comment: ''
    file: '"/tmp/cr/fm_dec_240k_"+str(cutpoint)'
    type: float
    unbuffered: 'False'
    vlen: '1'
  states:
    bus_sink: false
    bus_source: false
    bus_structure: null
    coordinate: [718, 355]
    rotation: 0
    state: disabled
- name: blocks_file_sink_0_0
  id: blocks_file_sink
  parameters:
    affinity: ''
    alias: ''
    append: 'False'
    comment: ''
    file: '"/tmp/cr/psk_out_2375_"+str(cutpoint)'
    type: float
    unbuffered: 'False'
    vlen: '1'
  states:
    bus_sink: false
    bus_source: false
    bus_structure: null
    coordinate: [1152, 340.0]
    rotation: 0
    state: disabled
- name: blocks_file_sink_0_0_0
  id: blocks_file_sink
  parameters:
    affinity: ''
    alias: ''
    append: 'False'
    comment: ''
    file: '"/tmp/cr/symbol_combiner_out_"+str(cutpoint)'
    type: float
    unbuffered: 'False'
    vlen: '1'
  states:
    bus_sink: false
    bus_source: false
    bus_structure: null
    coordinate: [1368, 444.0]
    rotation: 0
    state: disabled
- name: blocks_keep_one_in_n_0
  id: blocks_keep_one_in_n
  parameters:
    affinity: ''
    alias: ''
    comment: ''
    maxoutbuf: '0'
    minoutbuf: '0'
    n: '2'
    type: float
    vlen: '1'
  states:
    bus_sink: false
    bus_source: false
    bus_structure: null
    coordinate: [1376, 360.0]
    rotation: 0
    state: disabled
- name: blocks_vector_to_stream_0_0_1
  id: blocks_vector_to_stream
  parameters:
    affinity: ''
    alias: ''
    comment: ''
    maxoutbuf: '0'
    minoutbuf: '0'
    num_items: chan_fft_len
    type: complex
    vlen: '1'
  states:
    bus_sink: false
    bus_source: false
    bus_structure: null
    coordinate: [31, 139]
    rotation: 0
    state: enabled
- name: chan_fft_len
  id: parameter
  parameters:
    alias: ''
    comment: ''
    hide: none
    label: ''
    short_id: ''
    type: intx
    value: '512'
  states:
    bus_sink: false
    bus_source: false
    bus_structure: null
    coordinate: [343, 3]
    rotation: 0
    state: enabled
- name: cutpoint
  id: parameter
  parameters:
    alias: ''
    comment: ''
    hide: none
    label: ''
    short_id: ''
    type: intx
    value: '0'
  states:
    bus_sink: false
    bus_source: false
    bus_structure: null
    coordinate: [408, 76.0]
    rotation: 0
    state: enabled
- name: digital_binary_slicer_fb_0
  id: digital_binary_slicer_fb
  parameters:
    affinity: ''
    alias: ''
    comment: ''
    maxoutbuf: '0'
    minoutbuf: '0'
  states:
    bus_sink: false
    bus_source: false
    bus_structure: null
    coordinate: [1112, 480.0]
    rotation: 180
    state: disabled
- name: digital_clock_recovery_mm_xx_0
  id: digital_clock_recovery_mm_xx
  parameters:
    affinity: ''
    alias: ''
    comment: ''
    gain_mu: '0.050'
    gain_omega: '0.001'
    maxoutbuf: '0'
    minoutbuf: '0'
    mu: '0.5'
    omega: audio_rate / 2375.0
    omega_relative_limit: '0.005'
    type: complex
  states:
    bus_sink: false
    bus_source: false
    bus_structure: null
    coordinate: [888, 204.0]
    rotation: 0
    state: disabled
- name: digital_costas_loop_cc_0
  id: digital_costas_loop_cc
  parameters:
    affinity: ''
    alias: ''
    comment: ''
    maxoutbuf: '0'
    minoutbuf: '0'
    order: '2'
    use_snr: 'False'
    w: loop_bw
  states:
    bus_sink: false
    bus_source: false
    bus_structure: null
    coordinate: [704, 160.0]
    rotation: 0
    state: disabled
- name: digital_diff_decoder_bb_0
  id: digital_diff_decoder_bb
  parameters:
    affinity: ''
    alias: ''
    comment: ''
    maxoutbuf: '0'
    minoutbuf: '0'
    modulus: '2'
  states:
    bus_sink: false
    bus_source: false
    bus_structure: null
    coordinate: [920, 476.0]
    rotation: 180
    state: disabled
- name: fft_len
  id: parameter
  parameters:
    alias: ''
    comment: ''
    hide: none
    label: ''
    short_id: ''
    type: intx
    value: '4096'
  states:
    bus_sink: false
    bus_source: false
    bus_structure: null
    coordinate: [247, 3]
    rotation: 0
    state: enabled
- name: fft_vxx_1_1
  id: fft_vxx
  parameters:
    affinity: ''
    alias: ''
    comment: ''
    fft_size: chan_fft_len
    forward: 'False'
    maxoutbuf: '0'
    minoutbuf: '0'
    nthreads: '1'
    shift: 'True'
    type: complex
    window: '[]'
  states:
    bus_sink: false
    bus_source: false
    bus_structure: null
    coordinate: [64, 204.0]
    rotation: 180
    state: enabled
- name: freq_xlating_fir_filter_xxx_1
  id: freq_xlating_fir_filter_xxx
  parameters:
    affinity: ''
    alias: ''
    center_freq: 57e3
    comment: ''
    decim: audio_decim
    maxoutbuf: '0'
    minoutbuf: '0'
    samp_rate: baseband_rate
    taps: firdes.low_pass(2500.0,baseband_rate,2.4e3,2e3,firdes.WIN_HAMMING)
    type: fcc
  states:
    bus_sink: false
    bus_source: false
    bus_structure: null
    coordinate: [463, 231]
    rotation: 270
    state: disabled
- name: log
  id: parameter
  parameters:
    alias: ''
    comment: ''
    hide: none
    label: ''
    short_id: ''
    type: ''
    value: 'False'
  states:
    bus_sink: false
    bus_source: false
    bus_structure: null
    coordinate: [1056, 100]
    rotation: 0
    state: enabled
- name: logpwrfft_x_0
  id: logpwrfft_x
  parameters:
    affinity: ''
    alias: ''
    average: 'False'
    avg_alpha: '1.0'
    comment: ''
    fft_size: fft19k_len
    frame_rate: '30'
    maxoutbuf: '0'
    minoutbuf: '0'
    ref_scale: '2'
    sample_rate: baseband_rate
    type: float
  states:
    bus_sink: false
    bus_source: false
    bus_structure: null
    coordinate: [1200, 8]
    rotation: 0
    state: enabled
- name: loop_bw
  id: parameter
  parameters:
    alias: ''
    comment: ''
    hide: none
    label: ''
    short_id: ''
    type: eng_float
    value: 3.14/150.0
  states:
    bus_sink: false
    bus_source: false
    bus_structure: null
    coordinate: [742, 71]
    rotation: 0
    state: enabled
- name: multirds_pilot_SNR_0
  id: multirds_pilot_SNR
  parameters:
    affinity: ''
    alias: ''
    carrier_freq: 19e3
    comment: ''
    debug: 'False'
    fft_len: fft19k_len
    gap_width: 4e3
    maxoutbuf: '0'
    minoutbuf: '0'
    msg_adr: '3'
    samp_rate: baseband_rate
    update_period: '0.4'
  states:
    bus_sink: false
    bus_source: false
    bus_structure: null
    coordinate: [1384, 16]
    rotation: 0
    state: enabled
- name: multirds_rds_decoder_redsea_0
  id: multirds_rds_decoder_redsea
  parameters:
    affinity: ''
    alias: ''
    comment: ''
    debug: 'False'
    log: 'False'
  states:
    bus_sink: false
    bus_source: false
    bus_structure: null
    coordinate: [1136, 548.0]
    rotation: 0
    state: disabled
- name: multirds_symbol_combiner_0
  id: multirds_symbol_combiner
  parameters:
    affinity: ''
    alias: ''
    comment: ''
    log: 'False'
    maxoutbuf: '0'
    min_diff: '0.2'
    minoutbuf: '0'
    threshold: '1'
  states:
    bus_sink: false
    bus_source: false
    bus_structure: null
    coordinate: [1376, 260.0]
    rotation: 0
    state: disabled
- name: multirds_vector_cutter_0_0
  id: multirds_vector_cutter
  parameters:
    affinity: ''
    alias: ''
    comment: ''
    cutpoint: cutpoint
    insize: fft_len
    maxoutbuf: '0'
    minoutbuf: '0'
    outsize: chan_fft_len
    pad_out: 'False'
    zero_len: num_zeros
  states:
    bus_sink: false
    bus_source: false
    bus_structure: null
    coordinate: [160, 328.0]
    rotation: 0
    state: enabled
- name: num_zeros
  id: parameter
  parameters:
    alias: ''
    comment: ''
    hide: none
    label: ''
    short_id: ''
    type: intx
    value: '128'
  states:
    bus_sink: false
    bus_source: false
    bus_structure: null
    coordinate: [159, 467]
    rotation: 0
    state: enabled
- name: pad_sink_0
  id: pad_sink
  parameters:
    affinity: ''
    alias: ''
    comment: ''
    label: audio
    num_streams: '1'
    optional: 'True'
    type: float
    vlen: '1'
  states:
    bus_sink: false
    bus_source: false
    bus_structure: null
    coordinate: [600, 100.0]
    rotation: 0
    state: enabled
- name: pad_sink_0_0
  id: pad_sink
  parameters:
    affinity: ''
    alias: ''
    comment: ''
    label: rds
    num_streams: '1'
    optional: 'True'
    type: message
    vlen: '1'
  states:
    bus_sink: false
    bus_source: false
    bus_structure: null
    coordinate: [1624, 516]
    rotation: 0
    state: enabled
- name: pad_sink_0_1
  id: pad_sink
  parameters:
    affinity: ''
    alias: ''
    comment: ''
    label: out
    num_streams: '1'
    optional: 'True'
    type: complex
    vlen: '1'
  states:
    bus_sink: false
    bus_source: false
    bus_structure: null
    coordinate: [336, 260.0]
    rotation: 0
    state: enabled
- name: pad_sink_1
  id: pad_sink
  parameters:
    affinity: ''
    alias: ''
    comment: ''
    label: psk_out
    num_streams: '1'
    optional: 'True'
    type: complex
    vlen: '1'
  states:
    bus_sink: false
    bus_source: false
    bus_structure: null
    coordinate: [934, 123]
    rotation: 0
    state: enabled
- name: pad_source_0
  id: pad_source
  parameters:
    affinity: ''
    alias: ''
    comment: ''
    label: in
    maxoutbuf: '0'
    minoutbuf: '0'
    num_streams: '1'
    optional: 'False'
    type: complex
    vlen: fft_len
  states:
    bus_sink: false
    bus_source: false
    bus_structure: null
    coordinate: [16, 412.0]
    rotation: 0
    state: enabled
- name: rational_resampler_xxx_0
  id: rational_resampler_xxx
  parameters:
    affinity: ''
    alias: ''
    comment: firdes.low_pass(1.0,chan_rate,250e3,50e3,firdes.WIN_HAMMING)
    decim: int(chan_rate/120000)
    fbw: '0'
    interp: int(baseband_rate*2/120000)
    maxoutbuf: '0'
    minoutbuf: '0'
    taps: ''
    type: ccc
  states:
    bus_sink: false
    bus_source: false
    bus_structure: null
    coordinate: [184, 92.0]
    rotation: 0
    state: bypassed
- name: root_raised_cosine_filter_0
  id: root_raised_cosine_filter
  parameters:
    affinity: ''
    alias: ''
    alpha: '1'
    comment: ''
    decim: '1'
    gain: '1'
    interp: '1'
    maxoutbuf: '0'
    minoutbuf: '0'
    ntaps: '100'
    samp_rate: audio_rate
    sym_rate: '2375'
    type: fir_filter_ccf
  states:
    bus_sink: false
    bus_source: false
    bus_structure: null
    coordinate: [551, 207]
    rotation: 90
    state: disabled
- name: samp_rate
  id: parameter
  parameters:
    alias: ''
    comment: ''
    hide: none
    label: ''
    short_id: ''
    type: intx
    value: '19200000'
  states:
    bus_sink: false
    bus_source: false
    bus_structure: null
    coordinate: [472, 4.0]
    rotation: 0
    state: enabled

connections:
- [analog_wfm_rcv_0_0, '0', blocks_file_sink_0, '0']
- [analog_wfm_rcv_0_0, '0', freq_xlating_fir_filter_xxx_1, '0']
- [analog_wfm_rcv_0_0, '0', logpwrfft_x_0, '0']
- [analog_wfm_rcv_0_0, '0', pad_sink_0, '0']
- [blocks_complex_to_real_0, '0', blocks_file_sink_0_0, '0']
- [blocks_complex_to_real_0, '0', blocks_keep_one_in_n_0, '0']
- [blocks_complex_to_real_0, '0', multirds_symbol_combiner_0, '0']
- [blocks_keep_one_in_n_0, '0', blocks_file_sink_0_0_0, '0']
- [blocks_keep_one_in_n_0, '0', digital_binary_slicer_fb_0, '0']
- [blocks_vector_to_stream_0_0_1, '0', rational_resampler_xxx_0, '0']
- [digital_binary_slicer_fb_0, '0', digital_diff_decoder_bb_0, '0']
- [digital_clock_recovery_mm_xx_0, '0', blocks_complex_to_real_0, '0']
- [digital_clock_recovery_mm_xx_0, '0', pad_sink_1, '0']
- [digital_costas_loop_cc_0, '0', digital_clock_recovery_mm_xx_0, '0']
- [digital_diff_decoder_bb_0, '0', multirds_rds_decoder_redsea_0, '0']
- [fft_vxx_1_1, '0', blocks_vector_to_stream_0_0_1, '0']
- [freq_xlating_fir_filter_xxx_1, '0', root_raised_cosine_filter_0, '0']
- [logpwrfft_x_0, '0', multirds_pilot_SNR_0, '0']
- [multirds_pilot_SNR_0, out, pad_sink_0_0, in]
- [multirds_vector_cutter_0_0, '0', fft_vxx_1_1, '0']
- [pad_source_0, '0', multirds_vector_cutter_0_0, '0']
- [rational_resampler_xxx_0, '0', analog_wfm_rcv_0_0, '0']
- [rational_resampler_xxx_0, '0', pad_sink_0_1, '0']
- [root_raised_cosine_filter_0, '0', digital_costas_loop_cc_0, '0']

metadata:
  file_format: 1