diff --git a/gnuradio/gr-dji_droneid/examples/autocorrelator_test.grc b/gnuradio/gr-dji_droneid/examples/autocorrelator_test.grc
new file mode 100644
index 0000000..d7964f7
--- /dev/null
+++ b/gnuradio/gr-dji_droneid/examples/autocorrelator_test.grc
@@ -0,0 +1,1004 @@
+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: autocorrelator_test
+    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: bb_gain
+  id: variable_qtgui_range
+  parameters:
+    comment: ''
+    gui_hint: ''
+    label: BB Gain
+    min_len: '200'
+    orient: QtCore.Qt.Horizontal
+    outputmsgname: value
+    rangeType: int
+    showports: 'False'
+    start: '0'
+    step: '2'
+    stop: '62'
+    value: '0'
+    widget: counter_slider
+  states:
+    bus_sink: false
+    bus_source: false
+    bus_structure: null
+    coordinate: [552, 8.0]
+    rotation: 0
+    state: true
+- name: channels_2ghz
+  id: variable
+  parameters:
+    comment: ''
+    value: '[i - 1 for i in [5, 10, 15, 20, 25, 30, 35, 40, 45, 50, 55, 60, 65, 70]]'
+  states:
+    bus_sink: false
+    bus_source: false
+    bus_structure: null
+    coordinate: [704, 12.0]
+    rotation: 0
+    state: enabled
+- name: channels_5ghz
+  id: variable
+  parameters:
+    comment: ''
+    value: '[i - 1 for i in list(range(5, 114, 5))]'
+  states:
+    bus_sink: false
+    bus_source: false
+    bus_structure: null
+    coordinate: [944, 92.0]
+    rotation: 0
+    state: enabled
+- name: fft_size
+  id: variable
+  parameters:
+    comment: ''
+    value: int(samp_rate / 15e3)
+  states:
+    bus_sink: false
+    bus_source: false
+    bus_structure: null
+    coordinate: [2176, 12.0]
+    rotation: 0
+    state: enabled
+- name: fosphor_channel
+  id: variable_qtgui_chooser
+  parameters:
+    comment: ''
+    gui_hint: ''
+    label: Fosphor Input
+    label0: Original Samples
+    label1: Low Pass Output
+    label2: ''
+    label3: ''
+    label4: ''
+    labels: '[]'
+    num_opts: '2'
+    option0: '0'
+    option1: '1'
+    option2: '2'
+    option3: '3'
+    option4: '4'
+    options: '[0, 1, 2]'
+    orient: Qt.QVBoxLayout
+    type: int
+    value: '0'
+    widget: combo_box
+  states:
+    bus_sink: false
+    bus_source: false
+    bus_structure: null
+    coordinate: [1736, 12.0]
+    rotation: 0
+    state: true
+- name: freq
+  id: variable_qtgui_chooser
+  parameters:
+    comment: ''
+    gui_hint: ''
+    label: Channel
+    label0: ''
+    label1: ''
+    label2: ''
+    label3: ''
+    label4: ''
+    labels: '[str(i) for i in frequencies]'
+    num_opts: '0'
+    option0: '0'
+    option1: '1'
+    option2: '2'
+    option3: '3'
+    option4: '4'
+    options: frequencies
+    orient: Qt.QVBoxLayout
+    type: real
+    value: frequencies[0]
+    widget: combo_box
+  states:
+    bus_sink: false
+    bus_source: false
+    bus_structure: null
+    coordinate: [1248, 8.0]
+    rotation: 0
+    state: enabled
+- name: frequencies
+  id: variable
+  parameters:
+    comment: ''
+    value: frequencies_2ghz + frequencies_5ghz
+  states:
+    bus_sink: false
+    bus_source: false
+    bus_structure: null
+    coordinate: [1472, 12.0]
+    rotation: 0
+    state: enabled
+- name: frequencies_2ghz
+  id: variable
+  parameters:
+    comment: ''
+    value: '[(i * 1e6) + 2.4055e9 for i in channels_2ghz]'
+  states:
+    bus_sink: false
+    bus_source: false
+    bus_structure: null
+    coordinate: [704, 92.0]
+    rotation: 0
+    state: enabled
+- name: frequencies_5ghz
+  id: variable
+  parameters:
+    comment: ''
+    value: '[(i * 1e6) + 5.7325e9 for i in channels_5ghz]'
+  states:
+    bus_sink: false
+    bus_source: false
+    bus_structure: null
+    coordinate: [944, 12.0]
+    rotation: 0
+    state: enabled
+- name: if_gain
+  id: variable_qtgui_range
+  parameters:
+    comment: ''
+    gui_hint: ''
+    label: IF Gain
+    min_len: '200'
+    orient: QtCore.Qt.Horizontal
+    outputmsgname: value
+    rangeType: int
+    showports: 'False'
+    start: '0'
+    step: '8'
+    stop: '40'
+    value: '0'
+    widget: counter_slider
+  states:
+    bus_sink: false
+    bus_source: false
+    bus_structure: null
+    coordinate: [400, 8.0]
+    rotation: 0
+    state: true
+- name: samp_rate
+  id: variable
+  parameters:
+    comment: ''
+    value: 15.36e6
+  states:
+    bus_sink: false
+    bus_source: false
+    bus_structure: null
+    coordinate: [248, 4.0]
+    rotation: 0
+    state: enabled
+- name: zc_seq
+  id: variable
+  parameters:
+    comment: ''
+    value: dji_droneid.utils.create_zc(fft_size, 4)
+  states:
+    bus_sink: false
+    bus_source: false
+    bus_structure: null
+    coordinate: [1960, 12.0]
+    rotation: 0
+    state: enabled
+- name: analog_const_source_x_0
+  id: analog_const_source_x
+  parameters:
+    affinity: ''
+    alias: ''
+    comment: ''
+    const: '0'
+    maxoutbuf: '0'
+    minoutbuf: '0'
+    type: float
+  states:
+    bus_sink: false
+    bus_source: false
+    bus_structure: null
+    coordinate: [1056, 1012.0]
+    rotation: 180
+    state: true
+- name: blocks_complex_to_mag_1
+  id: blocks_complex_to_mag
+  parameters:
+    affinity: ''
+    alias: ''
+    comment: ''
+    maxoutbuf: '0'
+    minoutbuf: '0'
+    vlen: '1'
+  states:
+    bus_sink: false
+    bus_source: false
+    bus_structure: null
+    coordinate: [1992, 932.0]
+    rotation: 0
+    state: true
+- name: blocks_complex_to_mag_squared_0
+  id: blocks_complex_to_mag_squared
+  parameters:
+    affinity: ''
+    alias: ''
+    comment: ''
+    maxoutbuf: '0'
+    minoutbuf: '0'
+    vlen: '1'
+  states:
+    bus_sink: false
+    bus_source: false
+    bus_structure: null
+    coordinate: [1048, 580.0]
+    rotation: 0
+    state: true
+- name: blocks_complex_to_mag_squared_1
+  id: blocks_complex_to_mag_squared
+  parameters:
+    affinity: ''
+    alias: ''
+    comment: ''
+    maxoutbuf: '0'
+    minoutbuf: '0'
+    vlen: '1'
+  states:
+    bus_sink: false
+    bus_source: false
+    bus_structure: null
+    coordinate: [1048, 1140.0]
+    rotation: 0
+    state: true
+- name: blocks_divide_xx_0
+  id: blocks_divide_xx
+  parameters:
+    affinity: ''
+    alias: ''
+    comment: ''
+    maxoutbuf: '0'
+    minoutbuf: '0'
+    num_inputs: '2'
+    type: complex
+    vlen: '1'
+  states:
+    bus_sink: false
+    bus_source: false
+    bus_structure: null
+    coordinate: [1712, 932.0]
+    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: [1056, 948.0]
+    rotation: 0
+    state: true
+- name: blocks_moving_average_xx_0
+  id: blocks_moving_average_xx
+  parameters:
+    affinity: ''
+    alias: ''
+    comment: ''
+    length: fft_size
+    max_iter: '4000'
+    maxoutbuf: '0'
+    minoutbuf: '0'
+    scale: 1 / (fft_size - 1)
+    type: float
+    vlen: '1'
+  states:
+    bus_sink: false
+    bus_source: false
+    bus_structure: null
+    coordinate: [1048, 644.0]
+    rotation: 180
+    state: true
+- name: blocks_multiply_const_xx_0
+  id: blocks_multiply_const_xx
+  parameters:
+    affinity: ''
+    alias: ''
+    comment: ''
+    const: 1 / fft_size
+    maxoutbuf: '0'
+    minoutbuf: '0'
+    type: complex
+    vlen: '1'
+  states:
+    bus_sink: false
+    bus_source: false
+    bus_structure: null
+    coordinate: [1376, 476.0]
+    rotation: 0
+    state: true
+- name: blocks_multiply_const_xx_0_0
+  id: blocks_multiply_const_xx
+  parameters:
+    affinity: ''
+    alias: ''
+    comment: ''
+    const: dji_droneid.utils.variance_vector(zc_seq)
+    maxoutbuf: '0'
+    minoutbuf: '0'
+    type: float
+    vlen: '1'
+  states:
+    bus_sink: false
+    bus_source: false
+    bus_structure: null
+    coordinate: [1056, 788.0]
+    rotation: 0
+    state: true
+- name: blocks_nlog10_ff_0
+  id: blocks_nlog10_ff
+  parameters:
+    affinity: ''
+    alias: ''
+    comment: ''
+    k: '0'
+    maxoutbuf: '0'
+    minoutbuf: '0'
+    n: '10'
+    vlen: '1'
+  states:
+    bus_sink: false
+    bus_source: false
+    bus_structure: null
+    coordinate: [2040, 1132.0]
+    rotation: 0
+    state: true
+- name: blocks_selector_0
+  id: blocks_selector
+  parameters:
+    affinity: ''
+    alias: ''
+    comment: ''
+    enabled: 'True'
+    input_index: fosphor_channel
+    maxoutbuf: '0'
+    minoutbuf: '0'
+    num_inputs: '2'
+    num_outputs: '1'
+    output_index: '0'
+    showports: 'True'
+    type: complex
+    vlen: '1'
+  states:
+    bus_sink: false
+    bus_source: false
+    bus_structure: null
+    coordinate: [880, 208.0]
+    rotation: 0
+    state: disabled
+- name: blocks_transcendental_0
+  id: blocks_transcendental
+  parameters:
+    affinity: ''
+    alias: ''
+    comment: ''
+    maxoutbuf: '0'
+    minoutbuf: '0'
+    name: sqrt
+    type: float
+  states:
+    bus_sink: false
+    bus_source: false
+    bus_structure: null
+    coordinate: [1056, 868.0]
+    rotation: 180
+    state: true
+- name: fft_filter_xxx_0
+  id: fft_filter_xxx
+  parameters:
+    affinity: ''
+    alias: ''
+    comment: ''
+    decim: '1'
+    maxoutbuf: '0'
+    minoutbuf: '0'
+    nthreads: '1'
+    samp_delay: '0'
+    taps: dji_droneid.utils.conj_vector(zc_seq)
+    type: ccc
+  states:
+    bus_sink: false
+    bus_source: false
+    bus_structure: null
+    coordinate: [1056, 452.0]
+    rotation: 0
+    state: true
+- name: filter_fft_low_pass_filter_0
+  id: filter_fft_low_pass_filter
+  parameters:
+    affinity: ''
+    alias: ''
+    beta: '6.76'
+    comment: ''
+    cutoff_freq: 5e6
+    decim: '1'
+    gain: '1'
+    maxoutbuf: '0'
+    minoutbuf: '0'
+    nthreads: '1'
+    samp_rate: samp_rate
+    type: ccc
+    width: 100e3
+    win: window.WIN_HAMMING
+  states:
+    bus_sink: false
+    bus_source: false
+    bus_structure: null
+    coordinate: [616, 452.0]
+    rotation: 0
+    state: true
+- name: fosphor_glfw_sink_c_0
+  id: fosphor_glfw_sink_c
+  parameters:
+    affinity: ''
+    alias: ''
+    comment: ''
+    freq_center: '0'
+    freq_span: samp_rate
+    maxoutbuf: '0'
+    minoutbuf: '0'
+    wintype: window.WIN_BLACKMAN_hARRIS
+  states:
+    bus_sink: false
+    bus_source: false
+    bus_structure: null
+    coordinate: [1184, 240.0]
+    rotation: 0
+    state: disabled
+- name: import_0
+  id: import
+  parameters:
+    alias: ''
+    comment: ''
+    imports: from gnuradio import dji_droneid
+  states:
+    bus_sink: false
+    bus_source: false
+    bus_structure: null
+    coordinate: [1960, 92.0]
+    rotation: 0
+    state: true
+- name: osmosdr_source_0
+  id: osmosdr_source
+  parameters:
+    affinity: ''
+    alias: ''
+    ant0: ''
+    ant1: ''
+    ant10: ''
+    ant11: ''
+    ant12: ''
+    ant13: ''
+    ant14: ''
+    ant15: ''
+    ant16: ''
+    ant17: ''
+    ant18: ''
+    ant19: ''
+    ant2: ''
+    ant20: ''
+    ant21: ''
+    ant22: ''
+    ant23: ''
+    ant24: ''
+    ant25: ''
+    ant26: ''
+    ant27: ''
+    ant28: ''
+    ant29: ''
+    ant3: ''
+    ant30: ''
+    ant31: ''
+    ant4: ''
+    ant5: ''
+    ant6: ''
+    ant7: ''
+    ant8: ''
+    ant9: ''
+    args: '""'
+    bb_gain0: bb_gain
+    bb_gain1: '20'
+    bb_gain10: '20'
+    bb_gain11: '20'
+    bb_gain12: '20'
+    bb_gain13: '20'
+    bb_gain14: '20'
+    bb_gain15: '20'
+    bb_gain16: '20'
+    bb_gain17: '20'
+    bb_gain18: '20'
+    bb_gain19: '20'
+    bb_gain2: '20'
+    bb_gain20: '20'
+    bb_gain21: '20'
+    bb_gain22: '20'
+    bb_gain23: '20'
+    bb_gain24: '20'
+    bb_gain25: '20'
+    bb_gain26: '20'
+    bb_gain27: '20'
+    bb_gain28: '20'
+    bb_gain29: '20'
+    bb_gain3: '20'
+    bb_gain30: '20'
+    bb_gain31: '20'
+    bb_gain4: '20'
+    bb_gain5: '20'
+    bb_gain6: '20'
+    bb_gain7: '20'
+    bb_gain8: '20'
+    bb_gain9: '20'
+    bw0: 10e6
+    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'
+    clock_source0: ''
+    clock_source1: ''
+    clock_source2: ''
+    clock_source3: ''
+    clock_source4: ''
+    clock_source5: ''
+    clock_source6: ''
+    clock_source7: ''
+    comment: ''
+    corr0: '0'
+    corr1: '0'
+    corr10: '0'
+    corr11: '0'
+    corr12: '0'
+    corr13: '0'
+    corr14: '0'
+    corr15: '0'
+    corr16: '0'
+    corr17: '0'
+    corr18: '0'
+    corr19: '0'
+    corr2: '0'
+    corr20: '0'
+    corr21: '0'
+    corr22: '0'
+    corr23: '0'
+    corr24: '0'
+    corr25: '0'
+    corr26: '0'
+    corr27: '0'
+    corr28: '0'
+    corr29: '0'
+    corr3: '0'
+    corr30: '0'
+    corr31: '0'
+    corr4: '0'
+    corr5: '0'
+    corr6: '0'
+    corr7: '0'
+    corr8: '0'
+    corr9: '0'
+    dc_offset_mode0: '0'
+    dc_offset_mode1: '0'
+    dc_offset_mode10: '0'
+    dc_offset_mode11: '0'
+    dc_offset_mode12: '0'
+    dc_offset_mode13: '0'
+    dc_offset_mode14: '0'
+    dc_offset_mode15: '0'
+    dc_offset_mode16: '0'
+    dc_offset_mode17: '0'
+    dc_offset_mode18: '0'
+    dc_offset_mode19: '0'
+    dc_offset_mode2: '0'
+    dc_offset_mode20: '0'
+    dc_offset_mode21: '0'
+    dc_offset_mode22: '0'
+    dc_offset_mode23: '0'
+    dc_offset_mode24: '0'
+    dc_offset_mode25: '0'
+    dc_offset_mode26: '0'
+    dc_offset_mode27: '0'
+    dc_offset_mode28: '0'
+    dc_offset_mode29: '0'
+    dc_offset_mode3: '0'
+    dc_offset_mode30: '0'
+    dc_offset_mode31: '0'
+    dc_offset_mode4: '0'
+    dc_offset_mode5: '0'
+    dc_offset_mode6: '0'
+    dc_offset_mode7: '0'
+    dc_offset_mode8: '0'
+    dc_offset_mode9: '0'
+    freq0: freq
+    freq1: 100e6
+    freq10: 100e6
+    freq11: 100e6
+    freq12: 100e6
+    freq13: 100e6
+    freq14: 100e6
+    freq15: 100e6
+    freq16: 100e6
+    freq17: 100e6
+    freq18: 100e6
+    freq19: 100e6
+    freq2: 100e6
+    freq20: 100e6
+    freq21: 100e6
+    freq22: 100e6
+    freq23: 100e6
+    freq24: 100e6
+    freq25: 100e6
+    freq26: 100e6
+    freq27: 100e6
+    freq28: 100e6
+    freq29: 100e6
+    freq3: 100e6
+    freq30: 100e6
+    freq31: 100e6
+    freq4: 100e6
+    freq5: 100e6
+    freq6: 100e6
+    freq7: 100e6
+    freq8: 100e6
+    freq9: 100e6
+    gain0: '0'
+    gain1: '10'
+    gain10: '10'
+    gain11: '10'
+    gain12: '10'
+    gain13: '10'
+    gain14: '10'
+    gain15: '10'
+    gain16: '10'
+    gain17: '10'
+    gain18: '10'
+    gain19: '10'
+    gain2: '10'
+    gain20: '10'
+    gain21: '10'
+    gain22: '10'
+    gain23: '10'
+    gain24: '10'
+    gain25: '10'
+    gain26: '10'
+    gain27: '10'
+    gain28: '10'
+    gain29: '10'
+    gain3: '10'
+    gain30: '10'
+    gain31: '10'
+    gain4: '10'
+    gain5: '10'
+    gain6: '10'
+    gain7: '10'
+    gain8: '10'
+    gain9: '10'
+    gain_mode0: 'False'
+    gain_mode1: 'False'
+    gain_mode10: 'False'
+    gain_mode11: 'False'
+    gain_mode12: 'False'
+    gain_mode13: 'False'
+    gain_mode14: 'False'
+    gain_mode15: 'False'
+    gain_mode16: 'False'
+    gain_mode17: 'False'
+    gain_mode18: 'False'
+    gain_mode19: 'False'
+    gain_mode2: 'False'
+    gain_mode20: 'False'
+    gain_mode21: 'False'
+    gain_mode22: 'False'
+    gain_mode23: 'False'
+    gain_mode24: 'False'
+    gain_mode25: 'False'
+    gain_mode26: 'False'
+    gain_mode27: 'False'
+    gain_mode28: 'False'
+    gain_mode29: 'False'
+    gain_mode3: 'False'
+    gain_mode30: 'False'
+    gain_mode31: 'False'
+    gain_mode4: 'False'
+    gain_mode5: 'False'
+    gain_mode6: 'False'
+    gain_mode7: 'False'
+    gain_mode8: 'False'
+    gain_mode9: 'False'
+    if_gain0: if_gain
+    if_gain1: '20'
+    if_gain10: '20'
+    if_gain11: '20'
+    if_gain12: '20'
+    if_gain13: '20'
+    if_gain14: '20'
+    if_gain15: '20'
+    if_gain16: '20'
+    if_gain17: '20'
+    if_gain18: '20'
+    if_gain19: '20'
+    if_gain2: '20'
+    if_gain20: '20'
+    if_gain21: '20'
+    if_gain22: '20'
+    if_gain23: '20'
+    if_gain24: '20'
+    if_gain25: '20'
+    if_gain26: '20'
+    if_gain27: '20'
+    if_gain28: '20'
+    if_gain29: '20'
+    if_gain3: '20'
+    if_gain30: '20'
+    if_gain31: '20'
+    if_gain4: '20'
+    if_gain5: '20'
+    if_gain6: '20'
+    if_gain7: '20'
+    if_gain8: '20'
+    if_gain9: '20'
+    iq_balance_mode0: '0'
+    iq_balance_mode1: '0'
+    iq_balance_mode10: '0'
+    iq_balance_mode11: '0'
+    iq_balance_mode12: '0'
+    iq_balance_mode13: '0'
+    iq_balance_mode14: '0'
+    iq_balance_mode15: '0'
+    iq_balance_mode16: '0'
+    iq_balance_mode17: '0'
+    iq_balance_mode18: '0'
+    iq_balance_mode19: '0'
+    iq_balance_mode2: '0'
+    iq_balance_mode20: '0'
+    iq_balance_mode21: '0'
+    iq_balance_mode22: '0'
+    iq_balance_mode23: '0'
+    iq_balance_mode24: '0'
+    iq_balance_mode25: '0'
+    iq_balance_mode26: '0'
+    iq_balance_mode27: '0'
+    iq_balance_mode28: '0'
+    iq_balance_mode29: '0'
+    iq_balance_mode3: '0'
+    iq_balance_mode30: '0'
+    iq_balance_mode31: '0'
+    iq_balance_mode4: '0'
+    iq_balance_mode5: '0'
+    iq_balance_mode6: '0'
+    iq_balance_mode7: '0'
+    iq_balance_mode8: '0'
+    iq_balance_mode9: '0'
+    maxoutbuf: '0'
+    minoutbuf: '0'
+    nchan: '1'
+    num_mboards: '1'
+    sample_rate: samp_rate
+    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: [136, 360.0]
+    rotation: 0
+    state: enabled
+- 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: 'True'
+    entags: 'True'
+    grid: 'False'
+    gui_hint: ''
+    label1: Correlator Output
+    label10: Signal 10
+    label2: Signal 2
+    label3: Signal 3
+    label4: Signal 4
+    label5: Signal 5
+    label6: Signal 6
+    label7: Signal 7
+    label8: Signal 8
+    label9: Signal 9
+    legend: 'True'
+    marker1: '-1'
+    marker10: '-1'
+    marker2: '-1'
+    marker3: '-1'
+    marker4: '-1'
+    marker5: '-1'
+    marker6: '-1'
+    marker7: '-1'
+    marker8: '-1'
+    marker9: '-1'
+    name: '""'
+    nconnections: '2'
+    size: '1024'
+    srate: samp_rate
+    stemplot: 'False'
+    style1: '1'
+    style10: '1'
+    style2: '1'
+    style3: '1'
+    style4: '1'
+    style5: '1'
+    style6: '1'
+    style7: '1'
+    style8: '1'
+    style9: '1'
+    tr_chan: '0'
+    tr_delay: '0'
+    tr_level: '0.0'
+    tr_mode: qtgui.TRIG_MODE_FREE
+    tr_slope: qtgui.TRIG_SLOPE_POS
+    tr_tag: '""'
+    type: float
+    update_time: '0.10'
+    width1: '1'
+    width10: '1'
+    width2: '1'
+    width3: '1'
+    width4: '1'
+    width5: '1'
+    width6: '1'
+    width7: '1'
+    width8: '1'
+    width9: '1'
+    ylabel: Amplitude
+    ymax: '1'
+    ymin: '-1'
+    yunit: '""'
+  states:
+    bus_sink: false
+    bus_source: false
+    bus_structure: null
+    coordinate: [2352, 996.0]
+    rotation: 0
+    state: true
+
+connections:
+- [analog_const_source_x_0, '0', blocks_float_to_complex_0, '1']
+- [blocks_complex_to_mag_1, '0', qtgui_time_sink_x_0, '0']
+- [blocks_complex_to_mag_squared_0, '0', blocks_moving_average_xx_0, '0']
+- [blocks_complex_to_mag_squared_1, '0', blocks_nlog10_ff_0, '0']
+- [blocks_divide_xx_0, '0', blocks_complex_to_mag_1, '0']
+- [blocks_float_to_complex_0, '0', blocks_divide_xx_0, '1']
+- [blocks_moving_average_xx_0, '0', blocks_multiply_const_xx_0_0, '0']
+- [blocks_multiply_const_xx_0, '0', blocks_divide_xx_0, '0']
+- [blocks_multiply_const_xx_0_0, '0', blocks_transcendental_0, '0']
+- [blocks_nlog10_ff_0, '0', qtgui_time_sink_x_0, '1']
+- [blocks_selector_0, '0', fosphor_glfw_sink_c_0, '0']
+- [blocks_transcendental_0, '0', blocks_float_to_complex_0, '0']
+- [fft_filter_xxx_0, '0', blocks_multiply_const_xx_0, '0']
+- [filter_fft_low_pass_filter_0, '0', blocks_complex_to_mag_squared_0, '0']
+- [filter_fft_low_pass_filter_0, '0', blocks_complex_to_mag_squared_1, '0']
+- [filter_fft_low_pass_filter_0, '0', blocks_selector_0, '1']
+- [filter_fft_low_pass_filter_0, '0', fft_filter_xxx_0, '0']
+- [osmosdr_source_0, '0', blocks_selector_0, '0']
+- [osmosdr_source_0, '0', filter_fft_low_pass_filter_0, '0']
+
+metadata:
+  file_format: 1
+  grc_version: 3.10.3.0