Implement QPSK TX - RX with USRP hardware

And fix some small issues in QPSK simulation.

The signal flow graph was tested with a coaxial cable, as well as with
an 2.4 GHz antenna. The constellation diagram looked OK, but the sent
data (bytes of lena512color.tiff) were neither decoded nor tested. That
is because we need to synchronize data frames with a header thing or
something like that (which is still not implemented yet).

1 files changed, 2360 insertions, 0 deletions

diff --git a/hardware/QPSK/qpsk.grc b/hardware/QPSK/qpsk.grc
new file mode 100644
index 0000000..69c2915
--- /dev/null
+++ b/hardware/QPSK/qpsk.grc
@@ -0,0 +1,2360 @@
+options:
+  parameters:
+    author: Pross Naoki, Halter Sara Cinzia
+    category: '[GRC Hier Blocks]'
+    cmake_opt: ''
+    comment: ''
+    copyright: ''
+    description: ''
+    gen_cmake: 'On'
+    gen_linking: dynamic
+    generate_options: qt_gui
+    hier_block_src_path: '.:'
+    id: qpks
+    max_nouts: '0'
+    output_language: python
+    placement: (0,0)
+    qt_qss_theme: ''
+    realtime_scheduling: '1'
+    run: 'True'
+    run_command: '{python} -u {filename}'
+    run_options: prompt
+    sizing_mode: fixed
+    thread_safe_setters: ''
+    title: QPSK Hardware Simultion
+    window_size: ''
+  states:
+    bus_sink: false
+    bus_source: false
+    bus_structure: null
+    coordinate: [8, 8]
+    rotation: 0
+    state: enabled
+
+blocks:
+- name: eq_gain
+  id: variable_qtgui_range
+  parameters:
+    comment: ''
+    gui_hint: 'params@1: 0,0,1,1'
+    label: Equalizer Rate
+    min_len: '200'
+    orient: Qt.Horizontal
+    rangeType: float
+    start: '0'
+    step: '.001'
+    stop: '.1'
+    value: '.01'
+    widget: counter_slider
+  states:
+    bus_sink: false
+    bus_source: false
+    bus_structure: null
+    coordinate: [840, 1172.0]
+    rotation: 0
+    state: true
+- name: eq_mod
+  id: variable
+  parameters:
+    comment: ''
+    value: '2'
+  states:
+    bus_sink: false
+    bus_source: false
+    bus_structure: null
+    coordinate: [840, 1092.0]
+    rotation: 0
+    state: true
+- name: eq_ntaps
+  id: variable
+  parameters:
+    comment: ''
+    value: '15'
+  states:
+    bus_sink: false
+    bus_source: false
+    bus_structure: null
+    coordinate: [920, 1092.0]
+    rotation: 0
+    state: true
+- name: excess_bw
+  id: variable
+  parameters:
+    comment: ''
+    value: '.35'
+  states:
+    bus_sink: false
+    bus_source: false
+    bus_structure: null
+    coordinate: [1016, 252.0]
+    rotation: 0
+    state: true
+- name: nfilts
+  id: variable
+  parameters:
+    comment: ''
+    value: '32'
+  states:
+    bus_sink: false
+    bus_source: false
+    bus_structure: null
+    coordinate: [432, 1188.0]
+    rotation: 0
+    state: true
+- name: phase_bw
+  id: variable_qtgui_range
+  parameters:
+    comment: ''
+    gui_hint: 'params@1: 1,0,1,1'
+    label: Phase Bandwidth
+    min_len: '200'
+    orient: Qt.Horizontal
+    rangeType: float
+    start: '0'
+    step: '.01'
+    stop: '1'
+    value: 2 * 3.141592653589793 / 100
+    widget: counter_slider
+  states:
+    bus_sink: false
+    bus_source: false
+    bus_structure: null
+    coordinate: [1160, 1140.0]
+    rotation: 0
+    state: true
+- name: qpsk_const
+  id: variable_constellation_rect
+  parameters:
+    comment: ''
+    const_points: '[0.707+0.707j, -0.707+0.707j, -0.707-0.707j, 0.707-0.707j]'
+    imag_sect: '2'
+    precision: '8'
+    real_sect: '2'
+    rot_sym: '4'
+    soft_dec_lut: None
+    sym_map: '[0, 1, 3, 2]'
+    w_imag_sect: '1'
+    w_real_sect: '1'
+  states:
+    bus_sink: false
+    bus_source: false
+    bus_structure: null
+    coordinate: [920, 428.0]
+    rotation: 0
+    state: true
+- name: rrc_taps
+  id: variable
+  parameters:
+    comment: ''
+    value: firdes.root_raised_cosine(nfilts, nfilts, 1.0/float(sps), excess_bw, 45*nfilts)
+  states:
+    bus_sink: false
+    bus_source: false
+    bus_structure: null
+    coordinate: [512, 1188.0]
+    rotation: 0
+    state: true
+- name: samp_rate
+  id: variable
+  parameters:
+    comment: ''
+    value: .4e6
+  states:
+    bus_sink: false
+    bus_source: false
+    bus_structure: null
+    coordinate: [192, 12.0]
+    rotation: 0
+    state: enabled
+- name: sps
+  id: variable
+  parameters:
+    comment: ''
+    value: '4'
+  states:
+    bus_sink: false
+    bus_source: false
+    bus_structure: null
+    coordinate: [920, 252.0]
+    rotation: 0
+    state: true
+- name: timing_loop_bw
+  id: variable
+  parameters:
+    comment: ''
+    value: 2 * 3.141592653589793 / 100
+  states:
+    bus_sink: false
+    bus_source: false
+    bus_structure: null
+    coordinate: [432, 1260.0]
+    rotation: 0
+    state: true
+- name: blocks_file_sink_0
+  id: blocks_file_sink
+  parameters:
+    affinity: ''
+    alias: ''
+    append: 'False'
+    comment: ''
+    file: /home/god/Documents/Fading/hardware/QPSK/lena512color_rx.tiff
+    type: byte
+    unbuffered: 'False'
+    vlen: '1'
+  states:
+    bus_sink: false
+    bus_source: false
+    bus_structure: null
+    coordinate: [1776, 692.0]
+    rotation: 0
+    state: disabled
+- name: blocks_file_source_0
+  id: blocks_file_source
+  parameters:
+    affinity: ''
+    alias: ''
+    begin_tag: pmt.PMT_NIL
+    comment: ''
+    file: /home/god/Documents/Fading/hardware/QPSK/lena512color.tiff
+    length: '0'
+    maxoutbuf: '0'
+    minoutbuf: '0'
+    offset: '0'
+    repeat: 'True'
+    type: byte
+    vlen: '1'
+  states:
+    bus_sink: false
+    bus_source: false
+    bus_structure: null
+    coordinate: [568, 308.0]
+    rotation: 0
+    state: enabled
+- name: blocks_null_sink_0
+  id: blocks_null_sink
+  parameters:
+    affinity: ''
+    alias: ''
+    bus_structure_sink: '[[0,],]'
+    comment: ''
+    num_inputs: '1'
+    type: byte
+    vlen: '1'
+  states:
+    bus_sink: false
+    bus_source: false
+    bus_structure: null
+    coordinate: [1832, 800.0]
+    rotation: 0
+    state: disabled
+- name: blocks_uchar_to_float_0
+  id: blocks_uchar_to_float
+  parameters:
+    affinity: ''
+    alias: ''
+    comment: ''
+    maxoutbuf: '0'
+    minoutbuf: '0'
+  states:
+    bus_sink: false
+    bus_source: false
+    bus_structure: null
+    coordinate: [792.0, 192]
+    rotation: 90
+    state: true
+- name: blocks_vector_source_x_0
+  id: blocks_vector_source_x
+  parameters:
+    affinity: ''
+    alias: ''
+    comment: ''
+    maxoutbuf: '0'
+    minoutbuf: '0'
+    repeat: 'True'
+    tags: '[]'
+    type: byte
+    vector: (0xb4,)
+    vlen: '1'
+  states:
+    bus_sink: false
+    bus_source: false
+    bus_structure: null
+    coordinate: [632, 444.0]
+    rotation: 0
+    state: disabled
+- name: digital_cma_equalizer_cc_0
+  id: digital_cma_equalizer_cc
+  parameters:
+    affinity: ''
+    alias: ''
+    comment: ''
+    maxoutbuf: '0'
+    minoutbuf: '0'
+    modulus: eq_mod
+    mu: eq_gain
+    num_taps: eq_ntaps
+    sps: int(sps / 2)
+  states:
+    bus_sink: false
+    bus_source: false
+    bus_structure: null
+    coordinate: [840, 996.0]
+    rotation: 0
+    state: true
+- name: digital_constellation_decoder_cb_0
+  id: digital_constellation_decoder_cb
+  parameters:
+    affinity: ''
+    alias: ''
+    comment: ''
+    constellation: qpsk_const
+    maxoutbuf: '0'
+    minoutbuf: '0'
+  states:
+    bus_sink: false
+    bus_source: false
+    bus_structure: null
+    coordinate: [1560, 968.0]
+    rotation: 0
+    state: true
+- name: digital_constellation_modulator_0
+  id: digital_constellation_modulator
+  parameters:
+    affinity: ''
+    alias: ''
+    comment: ''
+    constellation: qpsk_const
+    differential: 'True'
+    excess_bw: excess_bw
+    log: 'False'
+    maxoutbuf: '0'
+    minoutbuf: '0'
+    samples_per_symbol: sps
+    verbose: 'False'
+  states:
+    bus_sink: false
+    bus_source: false
+    bus_structure: null
+    coordinate: [920, 316.0]
+    rotation: 0
+    state: enabled
+- name: digital_costas_loop_cc_0
+  id: digital_costas_loop_cc
+  parameters:
+    affinity: ''
+    alias: ''
+    comment: ''
+    maxoutbuf: '0'
+    minoutbuf: '0'
+    order: '4'
+    use_snr: 'False'
+    w: phase_bw
+  states:
+    bus_sink: false
+    bus_source: false
+    bus_structure: null
+    coordinate: [1152, 992.0]
+    rotation: 0
+    state: true
+- name: digital_diff_decoder_bb_0
+  id: digital_diff_decoder_bb
+  parameters:
+    affinity: ''
+    alias: ''
+    comment: ''
+    maxoutbuf: '0'
+    minoutbuf: '0'
+    modulus: '4'
+  states:
+    bus_sink: false
+    bus_source: false
+    bus_structure: null
+    coordinate: [1576, 888.0]
+    rotation: 180
+    state: true
+- name: digital_map_bb_0
+  id: digital_map_bb
+  parameters:
+    affinity: ''
+    alias: ''
+    comment: ''
+    map: '[0, 1, 3, 2]'
+    maxoutbuf: '0'
+    minoutbuf: '0'
+  states:
+    bus_sink: false
+    bus_source: false
+    bus_structure: null
+    coordinate: [1584, 796.0]
+    rotation: 0
+    state: true
+- name: digital_pfb_clock_sync_xxx_0
+  id: digital_pfb_clock_sync_xxx
+  parameters:
+    affinity: ''
+    alias: ''
+    comment: ''
+    filter_size: nfilts
+    init_phase: nfilts/2
+    loop_bw: timing_loop_bw
+    max_dev: '1.5'
+    maxoutbuf: '0'
+    minoutbuf: '0'
+    osps: int(sps / 2)
+    sps: sps
+    taps: rrc_taps
+    type: ccf
+  states:
+    bus_sink: false
+    bus_source: false
+    bus_structure: null
+    coordinate: [416, 1020.0]
+    rotation: 0
+    state: true
+- name: params
+  id: qtgui_tab_widget
+  parameters:
+    alias: ''
+    comment: ''
+    gui_hint: ''
+    label0: Channel
+    label1: Receiver
+    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: [296, 12.0]
+    rotation: 0
+    state: true
+- name: plots
+  id: qtgui_tab_widget
+  parameters:
+    alias: ''
+    comment: ''
+    gui_hint: ''
+    label0: Constellations
+    label1: Frequency
+    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: Time
+    label3: Bits
+    label4: Tab 4
+    label5: Tab 5
+    label6: Tab 6
+    label7: Tab 7
+    label8: Tab 8
+    label9: Tab 9
+    num_tabs: '4'
+  states:
+    bus_sink: false
+    bus_source: false
+    bus_structure: null
+    coordinate: [448, 12.0]
+    rotation: 0
+    state: true
+- name: qtgui_const_sink_x_0
+  id: qtgui_const_sink_x
+  parameters:
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+    alias: ''
+    alpha1: '1.0'
+    alpha10: '1.0'
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+    alpha9: '1.0'
+    autoscale: 'False'
+    axislabels: 'True'
+    color1: '"blue"'
+    color10: '"red"'
+    color2: '"red"'
+    color3: '"red"'
+    color4: '"red"'
+    color5: '"red"'
+    color6: '"red"'
+    color7: '"red"'
+    color8: '"red"'
+    color9: '"red"'
+    comment: ''
+    grid: 'False'
+    gui_hint: 'plots@0: 0,0,1,1'
+    label1: ''
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+    label3: ''
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+    marker5: '0'
+    marker6: '0'
+    marker7: '0'
+    marker8: '0'
+    marker9: '0'
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+    tr_slope: qtgui.TRIG_SLOPE_POS
+    tr_tag: '""'
+    type: complex
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+  id: qtgui_const_sink_x
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+    alias: ''
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+    ymin: '-2'
+  states:
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+    bus_source: false
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+    coordinate: [284.0, 808]
+    rotation: 90
+    state: enabled
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+  id: qtgui_const_sink_x
+  parameters:
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+    alias: ''
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+    axislabels: 'True'
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+    color4: '"red"'
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+    color6: '"red"'
+    color7: '"red"'
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+    color9: '"red"'
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+    gui_hint: 'plots@0: 1,1,1,1'
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+    style2: '0'
+    style3: '0'
+    style4: '0'
+    style5: '0'
+    style6: '0'
+    style7: '0'
+    style8: '0'
+    style9: '0'
+    tr_chan: '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'
+    xmax: '2'
+    xmin: '-2'
+    ymax: '2'
+    ymin: '-2'
+  states:
+    bus_sink: false
+    bus_source: false
+    bus_structure: null
+    coordinate: [1012.0, 768]
+    rotation: 90
+    state: true
+- name: qtgui_const_sink_x_2
+  id: qtgui_const_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: '"red"'
+    color2: '"red"'
+    color3: '"red"'
+    color4: '"red"'
+    color5: '"red"'
+    color6: '"red"'
+    color7: '"red"'
+    color8: '"red"'
+    color9: '"red"'
+    comment: ''
+    grid: 'False'
+    gui_hint: 'plots@0: 1,2,1,1'
+    label1: ''
+    label10: ''
+    label2: ''
+    label3: ''
+    label4: ''
+    label5: ''
+    label6: ''
+    label7: ''
+    label8: ''
+    label9: ''
+    legend: 'True'
+    marker1: '0'
+    marker10: '0'
+    marker2: '0'
+    marker3: '0'
+    marker4: '0'
+    marker5: '0'
+    marker6: '0'
+    marker7: '0'
+    marker8: '0'
+    marker9: '0'
+    name: '"Locked"'
+    nconnections: '1'
+    size: '1024'
+    style1: '0'
+    style10: '0'
+    style2: '0'
+    style3: '0'
+    style4: '0'
+    style5: '0'
+    style6: '0'
+    style7: '0'
+    style8: '0'
+    style9: '0'
+    tr_chan: '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'
+    xmax: '2'
+    xmin: '-2'
+    ymax: '2'
+    ymin: '-2'
+  states:
+    bus_sink: false
+    bus_source: false
+    bus_structure: null
+    coordinate: [1372.0, 720]
+    rotation: 90
+    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: 'plots@1: 0,0,1,1'
+    label: Relative Gain
+    label1: ''
+    label10: ''''''
+    label2: ''''''
+    label3: ''''''
+    label4: ''''''
+    label5: ''''''
+    label6: ''''''
+    label7: ''''''
+    label8: ''''''
+    label9: ''''''
+    legend: 'True'
+    maxoutbuf: '0'
+    minoutbuf: '0'
+    name: '"Modulated (TX)"'
+    nconnections: '1'
+    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: firdes.WIN_BLACKMAN_hARRIS
+    ymax: '10'
+    ymin: '-140'
+  states:
+    bus_sink: false
+    bus_source: false
+    bus_structure: null
+    coordinate: [1144.0, 488]
+    rotation: 270
+    state: enabled
+- name: qtgui_freq_sink_x_1_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: 'plots@1: 0,2,1,1'
+    label: Relative Gain
+    label1: ''
+    label10: ''''''
+    label2: ''''''
+    label3: ''''''
+    label4: ''''''
+    label5: ''''''
+    label6: ''''''
+    label7: ''''''
+    label8: ''''''
+    label9: ''''''
+    legend: 'True'
+    maxoutbuf: '0'
+    minoutbuf: '0'
+    name: '"Synchronized and filtered"'
+    nconnections: '1'
+    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: firdes.WIN_BLACKMAN_hARRIS
+    ymax: '10'
+    ymin: '-140'
+  states:
+    bus_sink: false
+    bus_source: false
+    bus_structure: null
+    coordinate: [704.0, 1160]
+    rotation: 270
+    state: enabled
+- name: qtgui_freq_sink_x_1_0_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: 'plots@1: 0,1,1,1'
+    label: Relative Gain
+    label1: ''
+    label10: ''''''
+    label2: ''''''
+    label3: ''''''
+    label4: ''''''
+    label5: ''''''
+    label6: ''''''
+    label7: ''''''
+    label8: ''''''
+    label9: ''''''
+    legend: 'True'
+    maxoutbuf: '0'
+    minoutbuf: '0'
+    name: '"Received"'
+    nconnections: '1'
+    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: firdes.WIN_BLACKMAN_hARRIS
+    ymax: '10'
+    ymin: '-140'
+  states:
+    bus_sink: false
+    bus_source: false
+    bus_structure: null
+    coordinate: [296.0, 1216]
+    rotation: 270
+    state: enabled
+- name: qtgui_freq_sink_x_1_0_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: 'plots@1: 1,1,1,1'
+    label: Relative Gain
+    label1: ''
+    label10: ''''''
+    label2: ''''''
+    label3: ''''''
+    label4: ''''''
+    label5: ''''''
+    label6: ''''''
+    label7: ''''''
+    label8: ''''''
+    label9: ''''''
+    legend: 'True'
+    maxoutbuf: '0'
+    minoutbuf: '0'
+    name: '"Equalized"'
+    nconnections: '1'
+    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: firdes.WIN_BLACKMAN_hARRIS
+    ymax: '10'
+    ymin: '-140'
+  states:
+    bus_sink: false
+    bus_source: false
+    bus_structure: null
+    coordinate: [1032.0, 1176]
+    rotation: 270
+    state: enabled
+- name: qtgui_freq_sink_x_1_0_1_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: 'plots@1: 1,2,1,1'
+    label: Relative Gain
+    label1: ''
+    label10: ''''''
+    label2: ''''''
+    label3: ''''''
+    label4: ''''''
+    label5: ''''''
+    label6: ''''''
+    label7: ''''''
+    label8: ''''''
+    label9: ''''''
+    legend: 'True'
+    maxoutbuf: '0'
+    minoutbuf: '0'
+    name: '"Locked"'
+    nconnections: '1'
+    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: firdes.WIN_BLACKMAN_hARRIS
+    ymax: '10'
+    ymin: '-140'
+  states:
+    bus_sink: false
+    bus_source: false
+    bus_structure: null
+    coordinate: [1456.0, 1128]
+    rotation: 270
+    state: enabled
+- name: qtgui_histogram_sink_x_0
+  id: qtgui_histogram_sink_x
+  parameters:
+    accum: 'False'
+    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: 'True'
+    axislabels: 'True'
+    bins: '20'
+    color1: '"blue"'
+    color10: '"dark blue"'
+    color2: '"red"'
+    color3: '"green"'
+    color4: '"black"'
+    color5: '"cyan"'
+    color6: '"magenta"'
+    color7: '"yellow"'
+    color8: '"dark red"'
+    color9: '"dark green"'
+    comment: ''
+    grid: 'False'
+    gui_hint: 'plots@3: 0,0,1,1'
+    label1: ''
+    label10: ''
+    label2: ''
+    label3: ''
+    label4: ''
+    label5: ''
+    label6: ''
+    label7: ''
+    label8: ''
+    label9: ''
+    legend: 'True'
+    marker1: '-1'
+    marker10: '-1'
+    marker2: '-1'
+    marker3: '-1'
+    marker4: '-1'
+    marker5: '-1'
+    marker6: '-1'
+    marker7: '-1'
+    marker8: '-1'
+    marker9: '-1'
+    name: '"Sent"'
+    nconnections: '1'
+    size: 1024*4
+    style1: '1'
+    style10: '1'
+    style2: '1'
+    style3: '1'
+    style4: '1'
+    style5: '1'
+    style6: '1'
+    style7: '1'
+    style8: '1'
+    style9: '1'
+    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'
+    xmax: '1'
+    xmin: '-1'
+  states:
+    bus_sink: false
+    bus_source: false
+    bus_structure: null
+    coordinate: [912, 60.0]
+    rotation: 0
+    state: true
+- name: qtgui_time_raster_sink_x_0
+  id: qtgui_time_raster_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'
+    color1: '0'
+    color10: '0'
+    color2: '0'
+    color3: '0'
+    color4: '0'
+    color5: '0'
+    color6: '0'
+    color7: '0'
+    color8: '0'
+    color9: '0'
+    comment: ''
+    grid: 'False'
+    gui_hint: 'plots@3: 1,0,1,1'
+    label1: ''
+    label10: ''
+    label2: ''
+    label3: ''
+    label4: ''
+    label5: ''
+    label6: ''
+    label7: ''
+    label8: ''
+    label9: ''
+    mult: '[]'
+    name: '""'
+    ncols: '256'
+    nconnections: '1'
+    nrows: '256'
+    offset: '[]'
+    samp_rate: samp_rate
+    type: byte
+    update_time: '0.10'
+    zmax: '1'
+    zmin: '-1'
+  states:
+    bus_sink: false
+    bus_source: false
+    bus_structure: null
+    coordinate: [1832, 852.0]
+    rotation: 0
+    state: true
+- name: qtgui_time_sink_x_2
+  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: 'True'
+    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: 'False'
+    grid: 'False'
+    gui_hint: 'plots@2: 0,0,1,1'
+    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: '"Modulated (TX)"'
+    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: [1276.0, 488]
+    rotation: 270
+    state: enabled
+- name: qtgui_time_sink_x_2_0_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: 'True'
+    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: 'False'
+    grid: 'False'
+    gui_hint: 'plots@2: 1,0,1,1'
+    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: '"Received (RX)"'
+    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: [1572.0, 1128]
+    rotation: 270
+    state: enabled
+- name: uhd_usrp_sink_0
+  id: uhd_usrp_sink
+  parameters:
+    affinity: ''
+    alias: ''
+    ant0: TX/RX
+    ant1: TX/RX
+    ant10: TX/RX
+    ant11: TX/RX
+    ant12: TX/RX
+    ant13: TX/RX
+    ant14: TX/RX
+    ant15: TX/RX
+    ant16: TX/RX
+    ant17: TX/RX
+    ant18: TX/RX
+    ant19: TX/RX
+    ant2: TX/RX
+    ant20: TX/RX
+    ant21: TX/RX
+    ant22: TX/RX
+    ant23: TX/RX
+    ant24: TX/RX
+    ant25: TX/RX
+    ant26: TX/RX
+    ant27: TX/RX
+    ant28: TX/RX
+    ant29: TX/RX
+    ant3: TX/RX
+    ant30: TX/RX
+    ant31: TX/RX
+    ant4: TX/RX
+    ant5: TX/RX
+    ant6: TX/RX
+    ant7: TX/RX
+    ant8: TX/RX
+    ant9: TX/RX
+    bw0: '0'
+    bw1: '0'
+    bw10: '0'
+    bw11: '0'
+    bw12: '0'
+    bw13: '0'
+    bw14: '0'
+    bw15: '0'
+    bw16: '0'
+    bw17: '0'
+    bw18: '0'
+    bw19: '0'
+    bw2: '0'
+    bw20: '0'
+    bw21: '0'
+    bw22: '0'
+    bw23: '0'
+    bw24: '0'
+    bw25: '0'
+    bw26: '0'
+    bw27: '0'
+    bw28: '0'
+    bw29: '0'
+    bw3: '0'
+    bw30: '0'
+    bw31: '0'
+    bw4: '0'
+    bw5: '0'
+    bw6: '0'
+    bw7: '0'
+    bw8: '0'
+    bw9: '0'
+    center_freq0: 2.4e9
+    center_freq1: '0'
+    center_freq10: '0'
+    center_freq11: '0'
+    center_freq12: '0'
+    center_freq13: '0'
+    center_freq14: '0'
+    center_freq15: '0'
+    center_freq16: '0'
+    center_freq17: '0'
+    center_freq18: '0'
+    center_freq19: '0'
+    center_freq2: '0'
+    center_freq20: '0'
+    center_freq21: '0'
+    center_freq22: '0'
+    center_freq23: '0'
+    center_freq24: '0'
+    center_freq25: '0'
+    center_freq26: '0'
+    center_freq27: '0'
+    center_freq28: '0'
+    center_freq29: '0'
+    center_freq3: '0'
+    center_freq30: '0'
+    center_freq31: '0'
+    center_freq4: '0'
+    center_freq5: '0'
+    center_freq6: '0'
+    center_freq7: '0'
+    center_freq8: '0'
+    center_freq9: '0'
+    clock_rate: 0e0
+    clock_source0: external
+    clock_source1: ''
+    clock_source2: ''
+    clock_source3: ''
+    clock_source4: ''
+    clock_source5: ''
+    clock_source6: ''
+    clock_source7: ''
+    comment: ''
+    dev_addr: '"serial=309AF59  "'
+    dev_args: '""'
+    gain0: '0.3'
+    gain1: '0'
+    gain10: '0'
+    gain11: '0'
+    gain12: '0'
+    gain13: '0'
+    gain14: '0'
+    gain15: '0'
+    gain16: '0'
+    gain17: '0'
+    gain18: '0'
+    gain19: '0'
+    gain2: '0'
+    gain20: '0'
+    gain21: '0'
+    gain22: '0'
+    gain23: '0'
+    gain24: '0'
+    gain25: '0'
+    gain26: '0'
+    gain27: '0'
+    gain28: '0'
+    gain29: '0'
+    gain3: '0'
+    gain30: '0'
+    gain31: '0'
+    gain4: '0'
+    gain5: '0'
+    gain6: '0'
+    gain7: '0'
+    gain8: '0'
+    gain9: '0'
+    len_tag_name: ''
+    lo_export0: 'False'
+    lo_export1: 'False'
+    lo_export10: 'False'
+    lo_export11: 'False'
+    lo_export12: 'False'
+    lo_export13: 'False'
+    lo_export14: 'False'
+    lo_export15: 'False'
+    lo_export16: 'False'
+    lo_export17: 'False'
+    lo_export18: 'False'
+    lo_export19: 'False'
+    lo_export2: 'False'
+    lo_export20: 'False'
+    lo_export21: 'False'
+    lo_export22: 'False'
+    lo_export23: 'False'
+    lo_export24: 'False'
+    lo_export25: 'False'
+    lo_export26: 'False'
+    lo_export27: 'False'
+    lo_export28: 'False'
+    lo_export29: 'False'
+    lo_export3: 'False'
+    lo_export30: 'False'
+    lo_export31: 'False'
+    lo_export4: 'False'
+    lo_export5: 'False'
+    lo_export6: 'False'
+    lo_export7: 'False'
+    lo_export8: 'False'
+    lo_export9: 'False'
+    lo_source0: internal
+    lo_source1: internal
+    lo_source10: internal
+    lo_source11: internal
+    lo_source12: internal
+    lo_source13: internal
+    lo_source14: internal
+    lo_source15: internal
+    lo_source16: internal
+    lo_source17: internal
+    lo_source18: internal
+    lo_source19: internal
+    lo_source2: internal
+    lo_source20: internal
+    lo_source21: internal
+    lo_source22: internal
+    lo_source23: internal
+    lo_source24: internal
+    lo_source25: internal
+    lo_source26: internal
+    lo_source27: internal
+    lo_source28: internal
+    lo_source29: internal
+    lo_source3: internal
+    lo_source30: internal
+    lo_source31: internal
+    lo_source4: internal
+    lo_source5: internal
+    lo_source6: internal
+    lo_source7: internal
+    lo_source8: internal
+    lo_source9: internal
+    maxoutbuf: '0'
+    minoutbuf: '0'
+    nchan: '1'
+    norm_gain0: 'True'
+    norm_gain1: 'False'
+    norm_gain10: 'False'
+    norm_gain11: 'False'
+    norm_gain12: 'False'
+    norm_gain13: 'False'
+    norm_gain14: 'False'
+    norm_gain15: 'False'
+    norm_gain16: 'False'
+    norm_gain17: 'False'
+    norm_gain18: 'False'
+    norm_gain19: 'False'
+    norm_gain2: 'False'
+    norm_gain20: 'False'
+    norm_gain21: 'False'
+    norm_gain22: 'False'
+    norm_gain23: 'False'
+    norm_gain24: 'False'
+    norm_gain25: 'False'
+    norm_gain26: 'False'
+    norm_gain27: 'False'
+    norm_gain28: 'False'
+    norm_gain29: 'False'
+    norm_gain3: 'False'
+    norm_gain30: 'False'
+    norm_gain31: 'False'
+    norm_gain4: 'False'
+    norm_gain5: 'False'
+    norm_gain6: 'False'
+    norm_gain7: 'False'
+    norm_gain8: 'False'
+    norm_gain9: 'False'
+    num_mboards: '1'
+    otw: ''
+    samp_rate: samp_rate
+    sd_spec0: ''
+    sd_spec1: ''
+    sd_spec2: ''
+    sd_spec3: ''
+    sd_spec4: ''
+    sd_spec5: ''
+    sd_spec6: ''
+    sd_spec7: ''
+    show_lo_controls: 'False'
+    start_time: '-1.0'
+    stream_args: ''
+    stream_chans: '[]'
+    sync: sync
+    time_source0: ''
+    time_source1: ''
+    time_source2: ''
+    time_source3: ''
+    time_source4: ''
+    time_source5: ''
+    time_source6: ''
+    time_source7: ''
+    type: fc32
+  states:
+    bus_sink: false
+    bus_source: false
+    bus_structure: null
+    coordinate: [1384, 268.0]
+    rotation: 0
+    state: true
+- name: uhd_usrp_source_0
+  id: uhd_usrp_source
+  parameters:
+    affinity: ''
+    alias: ''
+    ant0: RX2
+    ant1: RX2
+    ant10: RX2
+    ant11: RX2
+    ant12: RX2
+    ant13: RX2
+    ant14: RX2
+    ant15: RX2
+    ant16: RX2
+    ant17: RX2
+    ant18: RX2
+    ant19: RX2
+    ant2: RX2
+    ant20: RX2
+    ant21: RX2
+    ant22: RX2
+    ant23: RX2
+    ant24: RX2
+    ant25: RX2
+    ant26: RX2
+    ant27: RX2
+    ant28: RX2
+    ant29: RX2
+    ant3: RX2
+    ant30: RX2
+    ant31: RX2
+    ant4: RX2
+    ant5: RX2
+    ant6: RX2
+    ant7: RX2
+    ant8: RX2
+    ant9: RX2
+    bw0: '0'
+    bw1: '0'
+    bw10: '0'
+    bw11: '0'
+    bw12: '0'
+    bw13: '0'
+    bw14: '0'
+    bw15: '0'
+    bw16: '0'
+    bw17: '0'
+    bw18: '0'
+    bw19: '0'
+    bw2: '0'
+    bw20: '0'
+    bw21: '0'
+    bw22: '0'
+    bw23: '0'
+    bw24: '0'
+    bw25: '0'
+    bw26: '0'
+    bw27: '0'
+    bw28: '0'
+    bw29: '0'
+    bw3: '0'
+    bw30: '0'
+    bw31: '0'
+    bw4: '0'
+    bw5: '0'
+    bw6: '0'
+    bw7: '0'
+    bw8: '0'
+    bw9: '0'
+    center_freq0: 2.4e9
+    center_freq1: '0'
+    center_freq10: '0'
+    center_freq11: '0'
+    center_freq12: '0'
+    center_freq13: '0'
+    center_freq14: '0'
+    center_freq15: '0'
+    center_freq16: '0'
+    center_freq17: '0'
+    center_freq18: '0'
+    center_freq19: '0'
+    center_freq2: '0'
+    center_freq20: '0'
+    center_freq21: '0'
+    center_freq22: '0'
+    center_freq23: '0'
+    center_freq24: '0'
+    center_freq25: '0'
+    center_freq26: '0'
+    center_freq27: '0'
+    center_freq28: '0'
+    center_freq29: '0'
+    center_freq3: '0'
+    center_freq30: '0'
+    center_freq31: '0'
+    center_freq4: '0'
+    center_freq5: '0'
+    center_freq6: '0'
+    center_freq7: '0'
+    center_freq8: '0'
+    center_freq9: '0'
+    clock_rate: 0e0
+    clock_source0: external
+    clock_source1: ''
+    clock_source2: ''
+    clock_source3: ''
+    clock_source4: ''
+    clock_source5: ''
+    clock_source6: ''
+    clock_source7: ''
+    comment: ''
+    dc_offs_enb0: '""'
+    dc_offs_enb1: '""'
+    dc_offs_enb10: '""'
+    dc_offs_enb11: '""'
+    dc_offs_enb12: '""'
+    dc_offs_enb13: '""'
+    dc_offs_enb14: '""'
+    dc_offs_enb15: '""'
+    dc_offs_enb16: '""'
+    dc_offs_enb17: '""'
+    dc_offs_enb18: '""'
+    dc_offs_enb19: '""'
+    dc_offs_enb2: '""'
+    dc_offs_enb20: '""'
+    dc_offs_enb21: '""'
+    dc_offs_enb22: '""'
+    dc_offs_enb23: '""'
+    dc_offs_enb24: '""'
+    dc_offs_enb25: '""'
+    dc_offs_enb26: '""'
+    dc_offs_enb27: '""'
+    dc_offs_enb28: '""'
+    dc_offs_enb29: '""'
+    dc_offs_enb3: '""'
+    dc_offs_enb30: '""'
+    dc_offs_enb31: '""'
+    dc_offs_enb4: '""'
+    dc_offs_enb5: '""'
+    dc_offs_enb6: '""'
+    dc_offs_enb7: '""'
+    dc_offs_enb8: '""'
+    dc_offs_enb9: '""'
+    dev_addr: '"serial=309AF6A  "'
+    dev_args: '""'
+    gain0: '0.6'
+    gain1: '0'
+    gain10: '0'
+    gain11: '0'
+    gain12: '0'
+    gain13: '0'
+    gain14: '0'
+    gain15: '0'
+    gain16: '0'
+    gain17: '0'
+    gain18: '0'
+    gain19: '0'
+    gain2: '0'
+    gain20: '0'
+    gain21: '0'
+    gain22: '0'
+    gain23: '0'
+    gain24: '0'
+    gain25: '0'
+    gain26: '0'
+    gain27: '0'
+    gain28: '0'
+    gain29: '0'
+    gain3: '0'
+    gain30: '0'
+    gain31: '0'
+    gain4: '0'
+    gain5: '0'
+    gain6: '0'
+    gain7: '0'
+    gain8: '0'
+    gain9: '0'
+    iq_imbal_enb0: '""'
+    iq_imbal_enb1: '""'
+    iq_imbal_enb10: '""'
+    iq_imbal_enb11: '""'
+    iq_imbal_enb12: '""'
+    iq_imbal_enb13: '""'
+    iq_imbal_enb14: '""'
+    iq_imbal_enb15: '""'
+    iq_imbal_enb16: '""'
+    iq_imbal_enb17: '""'
+    iq_imbal_enb18: '""'
+    iq_imbal_enb19: '""'
+    iq_imbal_enb2: '""'
+    iq_imbal_enb20: '""'
+    iq_imbal_enb21: '""'
+    iq_imbal_enb22: '""'
+    iq_imbal_enb23: '""'
+    iq_imbal_enb24: '""'
+    iq_imbal_enb25: '""'
+    iq_imbal_enb26: '""'
+    iq_imbal_enb27: '""'
+    iq_imbal_enb28: '""'
+    iq_imbal_enb29: '""'
+    iq_imbal_enb3: '""'
+    iq_imbal_enb30: '""'
+    iq_imbal_enb31: '""'
+    iq_imbal_enb4: '""'
+    iq_imbal_enb5: '""'
+    iq_imbal_enb6: '""'
+    iq_imbal_enb7: '""'
+    iq_imbal_enb8: '""'
+    iq_imbal_enb9: '""'
+    lo_export0: 'False'
+    lo_export1: 'False'
+    lo_export10: 'False'
+    lo_export11: 'False'
+    lo_export12: 'False'
+    lo_export13: 'False'
+    lo_export14: 'False'
+    lo_export15: 'False'
+    lo_export16: 'False'
+    lo_export17: 'False'
+    lo_export18: 'False'
+    lo_export19: 'False'
+    lo_export2: 'False'
+    lo_export20: 'False'
+    lo_export21: 'False'
+    lo_export22: 'False'
+    lo_export23: 'False'
+    lo_export24: 'False'
+    lo_export25: 'False'
+    lo_export26: 'False'
+    lo_export27: 'False'
+    lo_export28: 'False'
+    lo_export29: 'False'
+    lo_export3: 'False'
+    lo_export30: 'False'
+    lo_export31: 'False'
+    lo_export4: 'False'
+    lo_export5: 'False'
+    lo_export6: 'False'
+    lo_export7: 'False'
+    lo_export8: 'False'
+    lo_export9: 'False'
+    lo_source0: internal
+    lo_source1: internal
+    lo_source10: internal
+    lo_source11: internal
+    lo_source12: internal
+    lo_source13: internal
+    lo_source14: internal
+    lo_source15: internal
+    lo_source16: internal
+    lo_source17: internal
+    lo_source18: internal
+    lo_source19: internal
+    lo_source2: internal
+    lo_source20: internal
+    lo_source21: internal
+    lo_source22: internal
+    lo_source23: internal
+    lo_source24: internal
+    lo_source25: internal
+    lo_source26: internal
+    lo_source27: internal
+    lo_source28: internal
+    lo_source29: internal
+    lo_source3: internal
+    lo_source30: internal
+    lo_source31: internal
+    lo_source4: internal
+    lo_source5: internal
+    lo_source6: internal
+    lo_source7: internal
+    lo_source8: internal
+    lo_source9: internal
+    maxoutbuf: '0'
+    minoutbuf: '0'
+    nchan: '1'
+    norm_gain0: 'True'
+    norm_gain1: 'False'
+    norm_gain10: 'False'
+    norm_gain11: 'False'
+    norm_gain12: 'False'
+    norm_gain13: 'False'
+    norm_gain14: 'False'
+    norm_gain15: 'False'
+    norm_gain16: 'False'
+    norm_gain17: 'False'
+    norm_gain18: 'False'
+    norm_gain19: 'False'
+    norm_gain2: 'False'
+    norm_gain20: 'False'
+    norm_gain21: 'False'
+    norm_gain22: 'False'
+    norm_gain23: 'False'
+    norm_gain24: 'False'
+    norm_gain25: 'False'
+    norm_gain26: 'False'
+    norm_gain27: 'False'
+    norm_gain28: 'False'
+    norm_gain29: 'False'
+    norm_gain3: 'False'
+    norm_gain30: 'False'
+    norm_gain31: 'False'
+    norm_gain4: 'False'
+    norm_gain5: 'False'
+    norm_gain6: 'False'
+    norm_gain7: 'False'
+    norm_gain8: 'False'
+    norm_gain9: 'False'
+    num_mboards: '1'
+    otw: ''
+    rx_agc0: Disabled
+    rx_agc1: Default
+    rx_agc10: Default
+    rx_agc11: Default
+    rx_agc12: Default
+    rx_agc13: Default
+    rx_agc14: Default
+    rx_agc15: Default
+    rx_agc16: Default
+    rx_agc17: Default
+    rx_agc18: Default
+    rx_agc19: Default
+    rx_agc2: Default
+    rx_agc20: Default
+    rx_agc21: Default
+    rx_agc22: Default
+    rx_agc23: Default
+    rx_agc24: Default
+    rx_agc25: Default
+    rx_agc26: Default
+    rx_agc27: Default
+    rx_agc28: Default
+    rx_agc29: Default
+    rx_agc3: Default
+    rx_agc30: Default
+    rx_agc31: Default
+    rx_agc4: Default
+    rx_agc5: Default
+    rx_agc6: Default
+    rx_agc7: Default
+    rx_agc8: Default
+    rx_agc9: Default
+    samp_rate: samp_rate
+    sd_spec0: ''
+    sd_spec1: ''
+    sd_spec2: ''
+    sd_spec3: ''
+    sd_spec4: ''
+    sd_spec5: ''
+    sd_spec6: ''
+    sd_spec7: ''
+    show_lo_controls: 'False'
+    start_time: '-1.0'
+    stream_args: ''
+    stream_chans: '[]'
+    sync: sync
+    time_source0: ''
+    time_source1: ''
+    time_source2: ''
+    time_source3: ''
+    time_source4: ''
+    time_source5: ''
+    time_source6: ''
+    time_source7: ''
+    type: fc32
+  states:
+    bus_sink: false
+    bus_source: false
+    bus_structure: null
+    coordinate: [88, 1004.0]
+    rotation: 0
+    state: true
+
+connections:
+- [blocks_file_source_0, '0', blocks_uchar_to_float_0, '0']
+- [blocks_file_source_0, '0', digital_constellation_modulator_0, '0']
+- [blocks_uchar_to_float_0, '0', qtgui_histogram_sink_x_0, '0']
+- [blocks_vector_source_x_0, '0', blocks_uchar_to_float_0, '0']
+- [blocks_vector_source_x_0, '0', digital_constellation_modulator_0, '0']
+- [digital_cma_equalizer_cc_0, '0', digital_costas_loop_cc_0, '0']
+- [digital_cma_equalizer_cc_0, '0', qtgui_const_sink_x_1_0, '0']
+- [digital_cma_equalizer_cc_0, '0', qtgui_freq_sink_x_1_0_1, '0']
+- [digital_constellation_decoder_cb_0, '0', digital_diff_decoder_bb_0, '0']
+- [digital_constellation_modulator_0, '0', qtgui_const_sink_x_0, '0']
+- [digital_constellation_modulator_0, '0', qtgui_freq_sink_x_1, '0']
+- [digital_constellation_modulator_0, '0', qtgui_time_sink_x_2, '0']
+- [digital_constellation_modulator_0, '0', uhd_usrp_sink_0, '0']
+- [digital_costas_loop_cc_0, '0', digital_constellation_decoder_cb_0, '0']
+- [digital_costas_loop_cc_0, '0', qtgui_const_sink_x_2, '0']
+- [digital_costas_loop_cc_0, '0', qtgui_freq_sink_x_1_0_1_0, '0']
+- [digital_costas_loop_cc_0, '0', qtgui_time_sink_x_2_0_0, '0']
+- [digital_diff_decoder_bb_0, '0', digital_map_bb_0, '0']
+- [digital_map_bb_0, '0', blocks_file_sink_0, '0']
+- [digital_map_bb_0, '0', blocks_null_sink_0, '0']
+- [digital_map_bb_0, '0', qtgui_time_raster_sink_x_0, '0']
+- [digital_pfb_clock_sync_xxx_0, '0', digital_cma_equalizer_cc_0, '0']
+- [digital_pfb_clock_sync_xxx_0, '0', qtgui_const_sink_x_0_0, '0']
+- [digital_pfb_clock_sync_xxx_0, '0', qtgui_freq_sink_x_1_0, '0']
+- [uhd_usrp_source_0, '0', digital_pfb_clock_sync_xxx_0, '0']
+- [uhd_usrp_source_0, '0', qtgui_const_sink_x_0_0_0, '0']
+- [uhd_usrp_source_0, '0', qtgui_freq_sink_x_1_0_0, '0']
+
+metadata:
+  file_format: 1