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frequency_sweep.grc
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frequency_sweep.grc
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<?xml version='1.0' encoding='utf-8'?>
<?grc format='1' created='3.7.11'?>
<flow_graph>
<timestamp>Tue Aug 25 19:04:21 2015</timestamp>
<block>
<key>options</key>
<param>
<key>author</key>
<value>Joel Lehtonen</value>
</param>
<param>
<key>window_size</key>
<value></value>
</param>
<param>
<key>category</key>
<value>Custom</value>
</param>
<param>
<key>comment</key>
<value></value>
</param>
<param>
<key>description</key>
<value>Sweeps giten frequency range with configurable options</value>
</param>
<param>
<key>_enabled</key>
<value>1</value>
</param>
<param>
<key>_coordinate</key>
<value>(16, 20)</value>
</param>
<param>
<key>_rotation</key>
<value>0</value>
</param>
<param>
<key>generate_options</key>
<value>qt_gui</value>
</param>
<param>
<key>hier_block_src_path</key>
<value>.:</value>
</param>
<param>
<key>id</key>
<value>frequency_sweep</value>
</param>
<param>
<key>max_nouts</key>
<value>0</value>
</param>
<param>
<key>qt_qss_theme</key>
<value></value>
</param>
<param>
<key>realtime_scheduling</key>
<value></value>
</param>
<param>
<key>run_command</key>
<value>{python} -u {filename}</value>
</param>
<param>
<key>run_options</key>
<value>run</value>
</param>
<param>
<key>run</key>
<value>True</value>
</param>
<param>
<key>thread_safe_setters</key>
<value></value>
</param>
<param>
<key>title</key>
<value>LimeSDR frequency sweeper</value>
</param>
</block>
<block>
<key>analog_frequency_modulator_fc</key>
<param>
<key>alias</key>
<value></value>
</param>
<param>
<key>comment</key>
<value></value>
</param>
<param>
<key>affinity</key>
<value></value>
</param>
<param>
<key>_enabled</key>
<value>1</value>
</param>
<param>
<key>_coordinate</key>
<value>(600, 156)</value>
</param>
<param>
<key>_rotation</key>
<value>0</value>
</param>
<param>
<key>id</key>
<value>analog_frequency_modulator_fc_0</value>
</param>
<param>
<key>maxoutbuf</key>
<value>0</value>
</param>
<param>
<key>minoutbuf</key>
<value>0</value>
</param>
<param>
<key>sensitivity</key>
<value>2 * math.pi * deviation / samp_rate</value>
</param>
</block>
<block>
<key>analog_sig_source_x</key>
<param>
<key>amp</key>
<value>steps</value>
</param>
<param>
<key>alias</key>
<value></value>
</param>
<param>
<key>comment</key>
<value></value>
</param>
<param>
<key>affinity</key>
<value></value>
</param>
<param>
<key>_enabled</key>
<value>1</value>
</param>
<param>
<key>freq</key>
<value>1.0/duration/steps</value>
</param>
<param>
<key>_coordinate</key>
<value>(16, 140)</value>
</param>
<param>
<key>_rotation</key>
<value>0</value>
</param>
<param>
<key>id</key>
<value>analog_sig_source_x_0</value>
</param>
<param>
<key>maxoutbuf</key>
<value>0</value>
</param>
<param>
<key>minoutbuf</key>
<value>0</value>
</param>
<param>
<key>offset</key>
<value>0</value>
</param>
<param>
<key>type</key>
<value>float</value>
</param>
<param>
<key>samp_rate</key>
<value>samp_rate</value>
</param>
<param>
<key>waveform</key>
<value>analog.GR_SAW_WAVE</value>
</param>
</block>
<block>
<key>blocks_float_to_complex</key>
<param>
<key>alias</key>
<value></value>
</param>
<param>
<key>comment</key>
<value></value>
</param>
<param>
<key>affinity</key>
<value></value>
</param>
<param>
<key>_enabled</key>
<value>1</value>
</param>
<param>
<key>_coordinate</key>
<value>(600, 200)</value>
</param>
<param>
<key>_rotation</key>
<value>0</value>
</param>
<param>
<key>id</key>
<value>blocks_float_to_complex_0</value>
</param>
<param>
<key>maxoutbuf</key>
<value>0</value>
</param>
<param>
<key>minoutbuf</key>
<value>0</value>
</param>
<param>
<key>vlen</key>
<value>1</value>
</param>
</block>
<block>
<key>blocks_multiply_xx</key>
<param>
<key>alias</key>
<value></value>
</param>
<param>
<key>comment</key>
<value></value>
</param>
<param>
<key>affinity</key>
<value></value>
</param>
<param>
<key>_enabled</key>
<value>1</value>
</param>
<param>
<key>_coordinate</key>
<value>(792, 160)</value>
</param>
<param>
<key>_rotation</key>
<value>0</value>
</param>
<param>
<key>id</key>
<value>blocks_multiply_xx_0</value>
</param>
<param>
<key>type</key>
<value>complex</value>
</param>
<param>
<key>maxoutbuf</key>
<value>0</value>
</param>
<param>
<key>minoutbuf</key>
<value>0</value>
</param>
<param>
<key>num_inputs</key>
<value>2</value>
</param>
<param>
<key>vlen</key>
<value>1</value>
</param>
</block>
<block>
<key>parameter</key>
<param>
<key>alias</key>
<value></value>
</param>
<param>
<key>comment</key>
<value></value>
</param>
<param>
<key>_enabled</key>
<value>True</value>
</param>
<param>
<key>_coordinate</key>
<value>(320, 292)</value>
</param>
<param>
<key>_rotation</key>
<value>0</value>
</param>
<param>
<key>id</key>
<value>deviation</value>
</param>
<param>
<key>label</key>
<value>Deviation in Hz</value>
</param>
<param>
<key>short_id</key>
<value>d</value>
</param>
<param>
<key>type</key>
<value>eng_float</value>
</param>
<param>
<key>value</key>
<value>75000</value>
</param>
</block>
<block>
<key>parameter</key>
<param>
<key>alias</key>
<value></value>
</param>
<param>
<key>comment</key>
<value></value>
</param>
<param>
<key>_enabled</key>
<value>True</value>
</param>
<param>
<key>_coordinate</key>
<value>(552, 412)</value>
</param>
<param>
<key>_rotation</key>
<value>0</value>
</param>
<param>
<key>id</key>
<value>device</value>
</param>
<param>
<key>label</key>
<value>Device type. 1=LimeSDR-Mini, 2=LimeSDR-USB</value>
</param>
<param>
<key>short_id</key>
<value>t</value>
</param>
<param>
<key>type</key>
<value>intx</value>
</param>
<param>
<key>value</key>
<value>1</value>
</param>
</block>
<block>
<key>parameter</key>
<param>
<key>alias</key>
<value></value>
</param>
<param>
<key>comment</key>
<value></value>
</param>
<param>
<key>_enabled</key>
<value>True</value>
</param>
<param>
<key>_coordinate</key>
<value>(464, 292)</value>
</param>
<param>
<key>_rotation</key>
<value>0</value>
</param>
<param>
<key>id</key>
<value>duration</value>
</param>
<param>
<key>label</key>
<value>Single sweep duration (in seconds)</value>
</param>
<param>
<key>short_id</key>
<value>S</value>
</param>
<param>
<key>type</key>
<value>eng_float</value>
</param>
<param>
<key>value</key>
<value>5</value>
</param>
</block>
<block>
<key>parameter</key>
<param>
<key>alias</key>
<value></value>
</param>
<param>
<key>comment</key>
<value></value>
</param>
<param>
<key>_enabled</key>
<value>True</value>
</param>
<param>
<key>_coordinate</key>
<value>(216, 412)</value>
</param>
<param>
<key>_rotation</key>
<value>0</value>
</param>
<param>
<key>id</key>
<value>frequency</value>
</param>
<param>
<key>label</key>
<value>Center frequency (MHz)</value>
</param>
<param>
<key>short_id</key>
<value>f</value>
</param>
<param>
<key>type</key>
<value>eng_float</value>
</param>
<param>
<key>value</key>
<value>434.400</value>
</param>
</block>
<block>
<key>epy_block</key>
<param>
<key>alias</key>
<value></value>
</param>
<param>
<key>_io_cache</key>
<value>('Divmod', 'blk', [], [('0', 'float', 1)], [('0', 'float', 1), ('1', 'float', 1)], 'Embedded Python Block example - a simple multiply const', [])</value>
</param>
<param>
<key>_source_code</key>
<value>"""
Embedded Python Blocks:
Each time this file is saved, GRC will instantiate the first class it finds
to get ports and parameters of your block. The arguments to __init__ will
be the parameters. All of them are required to have default values!
"""
import numpy as np
from gnuradio import gr
import math
class blk(gr.sync_block): # other base classes are basic_block, decim_block, interp_block
"""Embedded Python Block example - a simple multiply const"""
def __init__(self): # only default arguments here
"""arguments to this function show up as parameters in GRC"""
gr.sync_block.__init__(
self,
name='Divmod', # will show up in GRC
in_sig=[np.float32],
out_sig=[np.float32,np.float32]
)
def work(self, input_items, output_items):
"""example: multiply with constant"""
m = np.modf(input_items[0])
output_items[0][:] = m[0]
output_items[1][:] = np.power(2, -m[1])
return len(output_items[0])
</value>
</param>
<param>
<key>comment</key>
<value></value>
</param>
<param>
<key>_enabled</key>
<value>True</value>
</param>
<param>
<key>_coordinate</key>
<value>(336, 160)</value>
</param>
<param>
<key>_rotation</key>
<value>0</value>
</param>
<param>
<key>id</key>
<value>frequency_sweep_erotin</value>
</param>
</block>
<block>
<key>import</key>
<param>
<key>alias</key>
<value></value>
</param>
<param>
<key>comment</key>
<value></value>
</param>
<param>
<key>_enabled</key>
<value>True</value>
</param>
<param>
<key>_coordinate</key>
<value>(200, 20)</value>
</param>
<param>
<key>_rotation</key>
<value>0</value>
</param>
<param>
<key>id</key>
<value>import_0</value>
</param>
<param>
<key>import</key>
<value>import math</value>
</param>
</block>
<block>
<key>limesdr_sink</key>
<param>
<key>alias</key>
<value></value>
</param>
<param>
<key>channel</key>
<value>0</value>
</param>
<param>
<key>analog_bandw_ch0</key>
<value>samp_rate</value>
</param>
<param>
<key>analog_filter_ch0</key>
<value>1</value>
</param>
<param>
<key>cmix_mode_ch0</key>
<value>0</value>
</param>
<param>
<key>calibr_bandw_ch0</key>
<value>samp_rate</value>
</param>
<param>
<key>calibration_ch0</key>
<value>1</value>
</param>
<param>
<key>digital_bandw_ch0</key>
<value>100e3</value>
</param>
<param>
<key>digital_filter_ch0</key>
<value>0</value>
</param>
<param>
<key>gain_dB_ch0</key>
<value>rf_gain</value>
</param>
<param>
<key>nco_freq_ch0</key>
<value>0</value>
</param>
<param>
<key>pa_path_ch0</key>
<value>1</value>
</param>
<param>
<key>pa_path_mini</key>
<value>1</value>
</param>
<param>
<key>analog_bandw_ch1</key>
<value>7e6</value>
</param>
<param>
<key>analog_filter_ch1</key>
<value>1</value>
</param>
<param>
<key>cmix_mode_ch1</key>
<value>0</value>
</param>
<param>
<key>calibr_bandw_ch1</key>
<value>10e6</value>
</param>
<param>
<key>calibration_ch1</key>
<value>1</value>
</param>
<param>
<key>digital_bandw_ch1</key>
<value>0</value>
</param>
<param>
<key>digital_filter_ch1</key>
<value>1</value>
</param>
<param>
<key>gain_dB_ch1</key>
<value>0</value>
</param>
<param>
<key>nco_freq_ch1</key>
<value>0</value>
</param>
<param>
<key>pa_path_ch1</key>
<value>1</value>
</param>
<param>
<key>chip_mode</key>
<value>1</value>
</param>
<param>
<key>comment</key>
<value></value>
</param>
<param>
<key>affinity</key>
<value></value>
</param>
<param>
<key>serial</key>
<value>serial</value>
</param>
<param>
<key>device_type</key>
<value>device</value>
</param>
<param>
<key>_enabled</key>
<value>1</value>
</param>
<param>
<key>filename</key>
<value></value>
</param>
<param>
<key>_coordinate</key>
<value>(1024, 52)</value>
</param>
<param>
<key>_rotation</key>
<value>0</value>
</param>
<param>
<key>id</key>
<value>limesdr_sink_0_0</value>
</param>
<param>
<key>file_switch</key>
<value>0</value>
</param>
<param>
<key>oversample</key>
<value>1</value>
</param>
<param>
<key>rf_freq</key>
<value>1e6*frequency</value>
</param>
<param>
<key>samp_rate</key>
<value>samp_rate</value>
</param>
</block>
<block>
<key>qtgui_number_sink</key>
<param>
<key>autoscale</key>
<value>False</value>
</param>
<param>
<key>avg</key>
<value>0</value>
</param>
<param>
<key>alias</key>
<value></value>
</param>
<param>
<key>comment</key>
<value></value>
</param>
<param>
<key>affinity</key>
<value></value>
</param>
<param>
<key>_enabled</key>
<value>True</value>
</param>
<param>
<key>_coordinate</key>
<value>(728, 292)</value>
</param>
<param>
<key>gui_hint</key>
<value></value>
</param>
<param>
<key>_rotation</key>
<value>0</value>
</param>
<param>
<key>graph_type</key>
<value>qtgui.NUM_GRAPH_HORIZ</value>
</param>
<param>
<key>id</key>
<value>qtgui_number_sink_0</value>
</param>
<param>
<key>type</key>
<value>float</value>
</param>
<param>
<key>color1</key>
<value>("black", "black")</value>
</param>
<param>
<key>factor1</key>
<value>1</value>
</param>
<param>
<key>label1</key>
<value>Relative amplitude</value>
</param>
<param>
<key>unit1</key>
<value>of FS</value>
</param>
<param>
<key>color10</key>
<value>("black", "black")</value>
</param>
<param>
<key>factor10</key>
<value>1</value>
</param>
<param>
<key>label10</key>
<value></value>
</param>
<param>
<key>unit10</key>
<value></value>
</param>
<param>
<key>color2</key>
<value>("black", "black")</value>
</param>
<param>
<key>factor2</key>
<value>1</value>
</param>
<param>
<key>label2</key>
<value></value>
</param>
<param>
<key>unit2</key>
<value></value>
</param>
<param>
<key>color3</key>
<value>("black", "black")</value>
</param>
<param>
<key>factor3</key>
<value>1</value>
</param>
<param>
<key>label3</key>
<value></value>
</param>
<param>
<key>unit3</key>
<value></value>
</param>
<param>
<key>color4</key>
<value>("black", "black")</value>
</param>
<param>
<key>factor4</key>
<value>1</value>
</param>
<param>
<key>label4</key>
<value></value>
</param>
<param>
<key>unit4</key>
<value></value>
</param>
<param>
<key>color5</key>
<value>("black", "black")</value>
</param>
<param>
<key>factor5</key>
<value>1</value>
</param>
<param>
<key>label5</key>
<value></value>
</param>
<param>
<key>unit5</key>
<value></value>
</param>
<param>
<key>color6</key>
<value>("black", "black")</value>
</param>
<param>
<key>factor6</key>
<value>1</value>
</param>
<param>
<key>label6</key>
<value></value>
</param>
<param>
<key>unit6</key>
<value></value>
</param>
<param>
<key>color7</key>
<value>("black", "black")</value>
</param>
<param>
<key>factor7</key>
<value>1</value>
</param>
<param>
<key>label7</key>
<value></value>
</param>
<param>
<key>unit7</key>
<value></value>
</param>
<param>
<key>color8</key>
<value>("black", "black")</value>
</param>
<param>
<key>factor8</key>
<value>1</value>
</param>
<param>
<key>label8</key>
<value></value>
</param>
<param>
<key>unit8</key>
<value></value>
</param>
<param>
<key>color9</key>
<value>("black", "black")</value>
</param>
<param>
<key>factor9</key>
<value>1</value>
</param>
<param>
<key>label9</key>
<value></value>
</param>
<param>
<key>unit9</key>
<value></value>
</param>
<param>
<key>max</key>
<value>1</value>
</param>
<param>
<key>min</key>
<value>0</value>
</param>
<param>
<key>name</key>
<value>""</value>
</param>
<param>
<key>nconnections</key>
<value>1</value>
</param>
<param>
<key>update_time</key>
<value>0.10</value>
</param>
</block>
<block>
<key>qtgui_sink_x</key>
<param>
<key>bw</key>
<value>samp_rate</value>
</param>
<param>
<key>alias</key>
<value></value>
</param>
<param>
<key>fc</key>
<value>frequency*1e6</value>
</param>
<param>
<key>freqchangevar</key>
<value>None</value>
</param>
<param>
<key>comment</key>
<value></value>
</param>
<param>
<key>affinity</key>
<value></value>
</param>
<param>
<key>_enabled</key>
<value>1</value>
</param>
<param>
<key>fftsize</key>
<value>2048</value>
</param>
<param>
<key>_coordinate</key>
<value>(1024, 348)</value>
</param>
<param>
<key>gui_hint</key>
<value></value>
</param>
<param>
<key>_rotation</key>
<value>0</value>
</param>
<param>
<key>id</key>
<value>qtgui_sink_x_0</value>
</param>
<param>
<key>maxoutbuf</key>
<value>0</value>
</param>
<param>
<key>minoutbuf</key>
<value>0</value>
</param>
<param>
<key>name</key>
<value>""</value>
</param>
<param>
<key>plotconst</key>
<value>True</value>
</param>