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@@ -0,0 +1,293 @@
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+options:
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+ parameters:
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+ author: ''
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+ category: '[GRC Hier Blocks]'
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+ cmake_opt: ''
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+ comment: ''
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+ copyright: ''
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+ description: ''
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+ gen_cmake: 'On'
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+ gen_linking: dynamic
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+ generate_options: qt_gui
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+ hier_block_src_path: '.:'
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+ id: scope
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+ max_nouts: '0'
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+ output_language: python
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+ placement: (0,0)
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+ qt_qss_theme: ''
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+ realtime_scheduling: ''
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+ run: 'True'
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+ run_command: '{python} -u {filename}'
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+ run_options: prompt
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+ sizing_mode: fixed
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+ thread_safe_setters: ''
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+ title: Arduino Voltmeter / Oscilloscope
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+ window_size: ''
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+ states:
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+ bus_sink: false
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+ bus_source: false
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+ bus_structure: null
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+ coordinate: [9, 19]
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+ rotation: 0
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+ state: enabled
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+
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+blocks:
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+- name: reference_voltage
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+ id: variable
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+ parameters:
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+ comment: ''
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+ value: '4.11'
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+ states:
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+ bus_sink: false
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+ bus_source: false
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+ bus_structure: null
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+ coordinate: [730, 64]
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+ rotation: 0
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+ state: true
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+- name: sample_rate_hz
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+ id: variable
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+ parameters:
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+ comment: ''
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+ value: 1e6 / 2500
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+ states:
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+ bus_sink: false
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+ bus_source: false
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+ bus_structure: null
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+ coordinate: [437, 63]
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+ rotation: 0
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+ state: enabled
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+- name: blocks_short_to_float_0
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+ id: blocks_short_to_float
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+ parameters:
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+ affinity: ''
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+ alias: ''
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+ comment: ''
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+ maxoutbuf: '0'
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+ minoutbuf: '0'
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+ scale: 1024 / reference_voltage
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+ vlen: '1'
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+ states:
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+ bus_sink: false
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+ bus_source: false
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+ bus_structure: null
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+ coordinate: [409, 253]
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+ rotation: 0
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+ state: true
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+- name: epy_block_0
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+ id: epy_block
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+ parameters:
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+ _source_code: "import struct\nimport time\n\nimport gnuradio\nimport numpy\nimport\
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+ \ serial\n\n\nclass ArduinoAnalogReadings(gnuradio.gr.sync_block):\n def\
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+ \ __init__(self, port=\"/dev/ttyUSB0\", baud_rate=115200, timeout=2):\n \
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+ \ gnuradio.gr.sync_block.__init__(\n self, name=\"Arduino Analog\
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+ \ Readings\", in_sig=[], out_sig=[numpy.int16]\n )\n self._serial_port\
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+ \ = serial.Serial(port, baud_rate, timeout=timeout)\n self._readings_counter\
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+ \ = 0\n self._start_timestamp = None\n\n def work(self, input_items,\
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+ \ output_items):\n # pylint: disable=unused-argument\n if not\
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+ \ self._start_timestamp:\n self._start_timestamp = time.time()\n\
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+ \ output_items[0][0] = struct.unpack(\">H\", self._serial_port.read(2))[0]\n\
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+ \ self._readings_counter += 1\n if self._readings_counter % 1000\
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+ \ == 0:\n print(self._readings_counter / (time.time() - self._start_timestamp),\
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+ \ \"Hz\")\n return 1\n"
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+ affinity: ''
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+ alias: ''
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+ baud_rate: '115200'
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+ comment: ''
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+ maxoutbuf: '0'
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+ minoutbuf: '0'
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+ port: '''/dev/ttyUSB0'''
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+ timeout: '2'
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+ states:
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+ _io_cache: ('Arduino Analog Readings', 'ArduinoAnalogReadings', [('port', "'/dev/ttyUSB0'"),
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+ ('baud_rate', '115200'), ('timeout', '2')], [], [('0', 'short', 1)], '', [])
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+ bus_sink: false
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+ bus_source: false
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+ bus_structure: null
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+ coordinate: [22, 221]
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+ rotation: 0
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+ state: true
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+- name: qtgui_freq_sink_x_0
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+ id: qtgui_freq_sink_x
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+ parameters:
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+ affinity: ''
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+ alias: ''
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+ alpha1: '1.0'
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+ alpha10: '1.0'
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+ alpha2: '1.0'
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+ alpha3: '1.0'
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+ alpha4: '1.0'
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+ alpha5: '1.0'
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+ alpha6: '1.0'
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+ alpha7: '1.0'
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+ alpha8: '1.0'
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+ alpha9: '1.0'
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+ autoscale: 'False'
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+ average: '1.0'
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+ axislabels: 'True'
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+ bw: sample_rate_hz
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+ color1: '"blue"'
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+ color10: '"dark blue"'
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+ color2: '"red"'
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+ color3: '"green"'
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+ color4: '"black"'
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+ color5: '"cyan"'
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+ color6: '"magenta"'
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+ color7: '"yellow"'
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+ color8: '"dark red"'
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+ color9: '"dark green"'
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+ comment: ''
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+ ctrlpanel: 'False'
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+ fc: '0'
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+ fftsize: '1024'
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+ freqhalf: 'True'
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+ grid: 'False'
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+ gui_hint: ''
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+ label: Relative Gain
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+ label1: ''
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+ label10: ''''''
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+ label2: ''''''
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+ label3: ''''''
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+ label4: ''''''
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+ label5: ''''''
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+ label6: ''''''
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+ label7: ''''''
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+ label8: ''''''
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+ label9: ''''''
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+ legend: 'False'
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+ maxoutbuf: '0'
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+ minoutbuf: '0'
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+ name: '""'
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+ nconnections: '1'
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+ showports: 'False'
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+ tr_chan: '0'
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+ tr_level: '0.0'
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+ tr_mode: qtgui.TRIG_MODE_FREE
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+ tr_tag: '""'
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+ type: float
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+ units: dB
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+ update_time: '0.10'
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+ width1: '2'
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+ width10: '1'
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+ width2: '1'
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+ width3: '1'
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+ width4: '1'
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+ width5: '1'
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+ width6: '1'
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+ width7: '1'
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+ width8: '1'
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+ width9: '1'
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+ wintype: firdes.WIN_BLACKMAN_hARRIS
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+ ymax: '10'
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+ ymin: '-140'
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+ states:
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+ bus_sink: false
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+ bus_source: false
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+ bus_structure: null
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+ coordinate: [768, 356]
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+ rotation: 0
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+ state: true
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+- name: qtgui_time_sink_x_0
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+ id: qtgui_time_sink_x
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+ parameters:
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+ affinity: ''
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+ alias: ''
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+ alpha1: '1.0'
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+ alpha10: '1.0'
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+ alpha2: '1.0'
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+ alpha3: '1.0'
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+ alpha4: '1.0'
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+ alpha5: '1.0'
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+ alpha6: '1.0'
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+ alpha7: '1.0'
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+ alpha8: '1.0'
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+ alpha9: '1.0'
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+ autoscale: 'False'
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+ axislabels: 'True'
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+ color1: blue
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+ color10: dark blue
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+ color2: red
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+ color3: green
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+ color4: black
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+ color5: cyan
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+ color6: magenta
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+ color7: yellow
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+ color8: dark red
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+ color9: dark green
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+ comment: ''
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+ ctrlpanel: 'False'
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+ entags: 'True'
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+ grid: 'False'
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+ gui_hint: ''
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+ label1: Signal 1
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+ label10: Signal 10
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+ label2: Signal 2
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+ label3: Signal 3
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+ label4: Signal 4
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+ label5: Signal 5
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+ label6: Signal 6
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+ label7: Signal 7
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+ label8: Signal 8
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+ label9: Signal 9
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+ legend: 'False'
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+ marker1: '-1'
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+ marker10: '-1'
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+ marker2: '-1'
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+ marker3: '-1'
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+ marker4: '-1'
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+ marker5: '-1'
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+ marker6: '-1'
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+ marker7: '-1'
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+ marker8: '-1'
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+ marker9: '-1'
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+ name: '""'
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+ nconnections: '1'
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+ size: int(sample_rate_hz*2)
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+ srate: sample_rate_hz
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+ stemplot: 'False'
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+ style1: '1'
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+ style10: '1'
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+ style2: '1'
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+ style3: '1'
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+ style4: '1'
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+ style5: '1'
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+ style6: '1'
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+ style7: '1'
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+ style8: '1'
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+ style9: '1'
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+ tr_chan: '0'
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+ tr_delay: '0'
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+ tr_level: '0.0'
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+ tr_mode: qtgui.TRIG_MODE_FREE
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+ tr_slope: qtgui.TRIG_SLOPE_POS
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+ tr_tag: '""'
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+ type: float
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+ update_time: '0.10'
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+ width1: '2'
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+ width10: '1'
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+ width2: '1'
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+ width3: '1'
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+ width4: '1'
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+ width5: '1'
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+ width6: '1'
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+ width7: '1'
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+ width8: '1'
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+ width9: '1'
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+ ylabel: Voltage
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+ ymax: reference_voltage
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+ ymin: '0'
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+ yunit: '"V"'
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+ states:
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+ bus_sink: false
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+ bus_source: false
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+ bus_structure: null
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+ coordinate: [768, 221]
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+ rotation: 0
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+ state: true
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+
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+connections:
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+- [blocks_short_to_float_0, '0', qtgui_freq_sink_x_0, '0']
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+- [blocks_short_to_float_0, '0', qtgui_time_sink_x_0, '0']
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+- [epy_block_0, '0', blocks_short_to_float_0, '0']
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+
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+metadata:
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+ file_format: 1
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