minor modif

bmarechal
1 parent dadf942499
Showing 5 changed files with 126 additions and 70 deletions Side-by-side Diff
sdr/fm_radio/fm_radio.grc
sdr/fm_radio/fm_radio.py
sdr/fm_radio/fm_radio_comp.py
sdr/fm_radio/fm_radio_comp_decim_lpf.grc
sdr/fm_radio/fm_radio_comp_decim_lpf.py
@@ -89,7 +89,7 @@
     </param>
     <param>
       <key>value</key>
-      <value>91e6</value>
+      <value>160011000</value>
     </param>
     <param>
       <key>_enabled</key>
@@ -129,7 +129,7 @@
     </param>
     <param>
       <key>step</key>
-      <value>1e6</value>
+      <value>1e3</value>
     </param>
     <param>
       <key>stop</key>
@@ -266,6 +266,53 @@
     </param>
   </block>
   <block>
+    <key>blocks_wavfile_sink</key>
+    <param>
+      <key>bits_per_sample</key>
+      <value>16</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>0</value>
+    </param>
+    <param>
+      <key>file</key>
+      <value>a.wav</value>
+    </param>
+    <param>
+      <key>_coordinate</key>
+      <value>(1104, 528)</value>
+    </param>
+    <param>
+      <key>_rotation</key>
+      <value>0</value>
+    </param>
+    <param>
+      <key>id</key>
+      <value>blocks_wavfile_sink_0</value>
+    </param>
+    <param>
+      <key>nchan</key>
+      <value>1</value>
+    </param>
+    <param>
+      <key>samp_rate</key>
+      <value>int(samp_rate)</value>
+    </param>
+  </block>
+  <block>
     <key>low_pass_filter</key>
     <param>
       <key>beta</key>
@@ -293,7 +340,7 @@
     </param>
     <param>
       <key>_enabled</key>
-      <value>0</value>
+      <value>1</value>
     </param>
     <param>
       <key>type</key>
@@ -368,7 +415,7 @@
     </param>
     <param>
       <key>_enabled</key>
-      <value>0</value>
+      <value>1</value>
     </param>
     <param>
       <key>type</key>
@@ -443,7 +490,7 @@
     </param>
     <param>
       <key>_enabled</key>
-      <value>0</value>
+      <value>1</value>
     </param>
     <param>
       <key>fftsize</key>
  
@@ -629,11 +676,11 @@
     </param>
     <param>
       <key>decim</key>
-      <value>10</value>
+      <value>4</value>
     </param>
     <param>
       <key>_enabled</key>
-      <value>1</value>
+      <value>0</value>
     </param>
     <param>
       <key>fbw</key>
  
@@ -688,11 +735,11 @@
     </param>
     <param>
       <key>decim</key>
-      <value>4</value>
+      <value>10</value>
     </param>
     <param>
       <key>_enabled</key>
-      <value>1</value>
+      <value>0</value>
     </param>
     <param>
       <key>fbw</key>
  
@@ -2169,8 +2216,20 @@
     <sink_key>0</sink_key>
   </connection>
   <connection>
+    <source_block_id>low_pass_filter_0_0</source_block_id>
+    <sink_block_id>blocks_wavfile_sink_0</sink_block_id>
+    <source_key>0</source_key>
+    <sink_key>0</sink_key>
+  </connection>
+  <connection>
     <source_block_id>rational_resampler_xxx_0</source_block_id>
     <sink_block_id>audio_sink_0</sink_block_id>
+    <source_key>0</source_key>
+    <sink_key>0</sink_key>
+  </connection>
+  <connection>
+    <source_block_id>rational_resampler_xxx_0</source_block_id>
+    <sink_block_id>blocks_wavfile_sink_0</sink_block_id>
     <source_key>0</source_key>
     <sink_key>0</sink_key>
   </connection>
@@ -3,7 +3,7 @@
 ##################################################
 # GNU Radio Python Flow Graph
 # Title: Fm Radio
-# Generated: Thu Mar 16 21:47:51 2017
+# Generated: Fri Mar 17 17:36:39 2017
 ##################################################
  
 if __name__ == '__main__':
  
@@ -62,12 +62,12 @@
         # Variables
         ##################################################
         self.samp_rate = samp_rate = 48e3
-        self.freq = freq = 91e6
+        self.freq = freq = 160011000
  
         ##################################################
         # Blocks
         ##################################################
-        self._freq_range = Range(52e6, 2e9, 1e6, 91e6, 200)
+        self._freq_range = Range(52e6, 2e9, 1e3, 160011000, 200)
         self._freq_win = RangeWidget(self._freq_range, self.set_freq, "freq", "counter_slider", float)
         self.top_grid_layout.addWidget(self._freq_win, 0,0)
         self.rtlsdr_source_0 = osmosdr.source( args="numchan=" + str(1) + " " + '' )
@@ -83,18 +83,6 @@
         self.rtlsdr_source_0.set_antenna('', 0)
         self.rtlsdr_source_0.set_bandwidth(0, 0)
  
-        self.rational_resampler_xxx_0_0 = filter.rational_resampler_ccc(
-                interpolation=1,
-                decimation=4,
-                taps=None,
-                fractional_bw=None,
-        )
-        self.rational_resampler_xxx_0 = filter.rational_resampler_fff(
-                interpolation=1,
-                decimation=10,
-                taps=None,
-                fractional_bw=None,
-        )
         self.qtgui_sink_x_1 = qtgui.sink_f(
         	1024, #fftsize
         	firdes.WIN_BLACKMAN_hARRIS, #wintype
@@ -114,6 +102,29 @@
  
  
  
+        self.qtgui_sink_x_0 = qtgui.sink_c(
+        	1024, #fftsize
+        	firdes.WIN_BLACKMAN_hARRIS, #wintype
+        	0, #fc
+        	samp_rate*10*4, #bw
+        	"", #name
+        	True, #plotfreq
+        	True, #plotwaterfall
+        	True, #plottime
+        	True, #plotconst
+        )
+        self.qtgui_sink_x_0.set_update_time(1.0/10)
+        self._qtgui_sink_x_0_win = sip.wrapinstance(self.qtgui_sink_x_0.pyqwidget(), Qt.QWidget)
+        self.top_grid_layout.addWidget(self._qtgui_sink_x_0_win, 9,0)
+        
+        self.qtgui_sink_x_0.enable_rf_freq(False)
+        
+        
+          
+        self.low_pass_filter_0_0 = filter.fir_filter_fff(10, firdes.low_pass(
+        	1, samp_rate*10, samp_rate*2, 1e4, firdes.WIN_HAMMING, 6.76))
+        self.low_pass_filter_0 = filter.fir_filter_ccf(4, firdes.low_pass(
+        	1, samp_rate*10*4, 500e3, 10e3, firdes.WIN_HAMMING, 6.76))
         self.audio_sink_0 = audio.sink(int(samp_rate), '', True)
         self.analog_wfm_rcv_0 = analog.wfm_rcv(
         	quad_rate=samp_rate*10,
  
@@ -123,11 +134,12 @@
         ##################################################
         # Connections
         ##################################################
+        self.connect((self.analog_wfm_rcv_0, 0), (self.low_pass_filter_0_0, 0))    
         self.connect((self.analog_wfm_rcv_0, 0), (self.qtgui_sink_x_1, 0))    
-        self.connect((self.analog_wfm_rcv_0, 0), (self.rational_resampler_xxx_0, 0))    
-        self.connect((self.rational_resampler_xxx_0, 0), (self.audio_sink_0, 0))    
-        self.connect((self.rational_resampler_xxx_0_0, 0), (self.analog_wfm_rcv_0, 0))    
-        self.connect((self.rtlsdr_source_0, 0), (self.rational_resampler_xxx_0_0, 0))    
+        self.connect((self.low_pass_filter_0, 0), (self.analog_wfm_rcv_0, 0))    
+        self.connect((self.low_pass_filter_0_0, 0), (self.audio_sink_0, 0))    
+        self.connect((self.rtlsdr_source_0, 0), (self.low_pass_filter_0, 0))    
+        self.connect((self.rtlsdr_source_0, 0), (self.qtgui_sink_x_0, 0))    
  
     def closeEvent(self, event):
         self.settings = Qt.QSettings("GNU Radio", "fm_radio")
@@ -141,6 +153,9 @@
         self.samp_rate = samp_rate
         self.rtlsdr_source_0.set_sample_rate(self.samp_rate*10*4)
         self.qtgui_sink_x_1.set_frequency_range(0, self.samp_rate*10)
+        self.qtgui_sink_x_0.set_frequency_range(0, self.samp_rate*10*4)
+        self.low_pass_filter_0_0.set_taps(firdes.low_pass(1, self.samp_rate*10, self.samp_rate*2, 1e4, firdes.WIN_HAMMING, 6.76))
+        self.low_pass_filter_0.set_taps(firdes.low_pass(1, self.samp_rate*10*4, 500e3, 10e3, firdes.WIN_HAMMING, 6.76))
  
     def get_freq(self):
         return self.freq
-#!/usr/bin/env python2
-# -*- coding: utf-8 -*-
-##################################################
-# GNU Radio Python Flow Graph
-# Title: Fm Radio Comp
-# Generated: Thu Mar 16 21:47:10 2017
-##################################################
-
-if __name__ == '__main__':
-    import ctypes
-    import sys
-    if sys.platform.startswith('linux'):
-        try:
-            x11 = ctypes.cdll.LoadLibrary('libX11.so')
-            x11.XInitThreads()
-        except:
-            print "Warning: failed to XInitThreads()"
-
-from PyQt4 import Qt
-from gnuradio import analog
-from gnuradio import eng_notation
-from gnuradio import filter
-from gnuradio import gr
-from gnuradio import qtgui
-from gnuradio.eng_option import eng_option
-from gnuradio.filter import firdes
-from gnuradio.qtgui import Range, RangeWidget
-from optparse import OptionParser
-import osmosdr
-import sip
-import sys
-import time
-
-
-class fm_radio_comp(gr.top_block, Qt.QWidget):
-
-    def __init__(self):
-        gr.top_block.__init__(self, "Fm Radio Comp")
-        Qt.QWidget.__init__(self)
-        self.setWindowTitle("Fm Radio Comp")
-        try:
-            self.setWindowIcon(Qt.QIcon.fromTheme('gnuradio-grc'))
-        except:
-            pass
-        self.top_scroll_layout = Qt.QVBoxLayout()
-        self.setLayout(self.top_scroll_layout)
-        self.top_scroll = Qt.QScrollArea()
-        self.top_scroll.setFrameStyle(Qt.QFrame.NoFrame)
-        self.top_scroll_layout.addWidget(self.top_scroll)
-        self.top_scroll.setWidgetResizable(True)
-        self.top_widget = Qt.QWidget()
-        self.top_scroll.setWidget(self.top_widget)
-        self.top_layout = Qt.QVBoxLayout(self.top_widget)
-        self.top_grid_layout = Qt.QGridLayout()
-        self.top_layout.addLayout(self.top_grid_layout)
-
-        self.settings = Qt.QSettings("GNU Radio", "fm_radio_comp")
-        self.restoreGeometry(self.settings.value("geometry").toByteArray())
-
-        ##################################################
-        # Variables
-        ##################################################
-        self.samp_rate = samp_rate = 48e3
-        self.freq = freq = 91e6
-
-        ##################################################
-        # Blocks
-        ##################################################
-        self._freq_range = Range(1e6, 2e9, 1e6, 91e6, 200)
-        self._freq_win = RangeWidget(self._freq_range, self.set_freq, "freq", "counter_slider", float)
-        self.top_grid_layout.addWidget(self._freq_win, 0,0)
-        self.rtlsdr_source_0 = osmosdr.source( args="numchan=" + str(1) + " " + '' )
-        self.rtlsdr_source_0.set_sample_rate(samp_rate*10*4)
-        self.rtlsdr_source_0.set_center_freq(freq, 0)
-        self.rtlsdr_source_0.set_freq_corr(0, 0)
-        self.rtlsdr_source_0.set_dc_offset_mode(0, 0)
-        self.rtlsdr_source_0.set_iq_balance_mode(0, 0)
-        self.rtlsdr_source_0.set_gain_mode(False, 0)
-        self.rtlsdr_source_0.set_gain(20, 0)
-        self.rtlsdr_source_0.set_if_gain(20, 0)
-        self.rtlsdr_source_0.set_bb_gain(20, 0)
-        self.rtlsdr_source_0.set_antenna('', 0)
-        self.rtlsdr_source_0.set_bandwidth(0, 0)
-          
-        self.rational_resampler_xxx_0_0 = filter.rational_resampler_ccc(
-                interpolation=1,
-                decimation=4,
-                taps=None,
-                fractional_bw=None,
-        )
-        self.rational_resampler_xxx_0 = filter.rational_resampler_fff(
-                interpolation=1,
-                decimation=10,
-                taps=None,
-                fractional_bw=None,
-        )
-        self.qtgui_sink_x_0 = qtgui.sink_c(
-        	1024, #fftsize
-        	firdes.WIN_BLACKMAN_hARRIS, #wintype
-        	0, #fc
-        	samp_rate*10*4, #bw
-        	"", #name
-        	True, #plotfreq
-        	True, #plotwaterfall
-        	True, #plottime
-        	True, #plotconst
-        )
-        self.qtgui_sink_x_0.set_update_time(1.0/10)
-        self._qtgui_sink_x_0_win = sip.wrapinstance(self.qtgui_sink_x_0.pyqwidget(), Qt.QWidget)
-        self.top_grid_layout.addWidget(self._qtgui_sink_x_0_win, 9,0)
-        
-        self.qtgui_sink_x_0.enable_rf_freq(False)
-        
-        
-          
-        self.qtgui_freq_sink_x_0 = qtgui.freq_sink_f(
-        	1024, #size
-        	firdes.WIN_BLACKMAN_hARRIS, #wintype
-        	0, #fc
-        	samp_rate, #bw
-        	"", #name
-        	2 #number of inputs
-        )
-        self.qtgui_freq_sink_x_0.set_update_time(0.10)
-        self.qtgui_freq_sink_x_0.set_y_axis(-140, 10)
-        self.qtgui_freq_sink_x_0.set_y_label('Relative Gain', 'dB')
-        self.qtgui_freq_sink_x_0.set_trigger_mode(qtgui.TRIG_MODE_FREE, 0.0, 0, "")
-        self.qtgui_freq_sink_x_0.enable_autoscale(False)
-        self.qtgui_freq_sink_x_0.enable_grid(True)
-        self.qtgui_freq_sink_x_0.set_fft_average(1.0)
-        self.qtgui_freq_sink_x_0.enable_axis_labels(True)
-        self.qtgui_freq_sink_x_0.enable_control_panel(False)
-        
-        if not True:
-          self.qtgui_freq_sink_x_0.disable_legend()
-        
-        if "float" == "float" or "float" == "msg_float":
-          self.qtgui_freq_sink_x_0.set_plot_pos_half(not True)
-        
-        labels = ['', '', '', '', '',
-                  '', '', '', '', '']
-        widths = [1, 1, 1, 1, 1,
-                  1, 1, 1, 1, 1]
-        colors = ["blue", "red", "green", "black", "cyan",
-                  "magenta", "yellow", "dark red", "dark green", "dark blue"]
-        alphas = [1.0, 1.0, 1.0, 1.0, 1.0,
-                  1.0, 1.0, 1.0, 1.0, 1.0]
-        for i in xrange(2):
-            if len(labels[i]) == 0:
-                self.qtgui_freq_sink_x_0.set_line_label(i, "Data {0}".format(i))
-            else:
-                self.qtgui_freq_sink_x_0.set_line_label(i, labels[i])
-            self.qtgui_freq_sink_x_0.set_line_width(i, widths[i])
-            self.qtgui_freq_sink_x_0.set_line_color(i, colors[i])
-            self.qtgui_freq_sink_x_0.set_line_alpha(i, alphas[i])
-        
-        self._qtgui_freq_sink_x_0_win = sip.wrapinstance(self.qtgui_freq_sink_x_0.pyqwidget(), Qt.QWidget)
-        self.top_grid_layout.addWidget(self._qtgui_freq_sink_x_0_win, 12,0)
-        self.low_pass_filter_0_0 = filter.fir_filter_fff(10, firdes.low_pass(
-        	1, samp_rate*10, samp_rate*2, 1e4, firdes.WIN_HAMMING, 6.76))
-        self.low_pass_filter_0 = filter.fir_filter_ccf(4, firdes.low_pass(
-        	1, samp_rate*10*4, 500e3, 10e3, firdes.WIN_HAMMING, 6.76))
-        self.analog_wfm_rcv_0_0 = analog.wfm_rcv(
-        	quad_rate=samp_rate*10,
-        	audio_decimation=1,
-        )
-        self.analog_wfm_rcv_0 = analog.wfm_rcv(
-        	quad_rate=samp_rate*10,
-        	audio_decimation=1,
-        )
-
-        ##################################################
-        # Connections
-        ##################################################
-        self.connect((self.analog_wfm_rcv_0, 0), (self.rational_resampler_xxx_0, 0))    
-        self.connect((self.analog_wfm_rcv_0_0, 0), (self.low_pass_filter_0_0, 0))    
-        self.connect((self.low_pass_filter_0, 0), (self.analog_wfm_rcv_0_0, 0))    
-        self.connect((self.low_pass_filter_0_0, 0), (self.qtgui_freq_sink_x_0, 1))    
-        self.connect((self.rational_resampler_xxx_0, 0), (self.qtgui_freq_sink_x_0, 0))    
-        self.connect((self.rational_resampler_xxx_0_0, 0), (self.analog_wfm_rcv_0, 0))    
-        self.connect((self.rtlsdr_source_0, 0), (self.low_pass_filter_0, 0))    
-        self.connect((self.rtlsdr_source_0, 0), (self.qtgui_sink_x_0, 0))    
-        self.connect((self.rtlsdr_source_0, 0), (self.rational_resampler_xxx_0_0, 0))    
-
-    def closeEvent(self, event):
-        self.settings = Qt.QSettings("GNU Radio", "fm_radio_comp")
-        self.settings.setValue("geometry", self.saveGeometry())
-        event.accept()
-
-    def get_samp_rate(self):
-        return self.samp_rate
-
-    def set_samp_rate(self, samp_rate):
-        self.samp_rate = samp_rate
-        self.rtlsdr_source_0.set_sample_rate(self.samp_rate*10*4)
-        self.qtgui_sink_x_0.set_frequency_range(0, self.samp_rate*10*4)
-        self.qtgui_freq_sink_x_0.set_frequency_range(0, self.samp_rate)
-        self.low_pass_filter_0_0.set_taps(firdes.low_pass(1, self.samp_rate*10, self.samp_rate*2, 1e4, firdes.WIN_HAMMING, 6.76))
-        self.low_pass_filter_0.set_taps(firdes.low_pass(1, self.samp_rate*10*4, 500e3, 10e3, firdes.WIN_HAMMING, 6.76))
-
-    def get_freq(self):
-        return self.freq
-
-    def set_freq(self, freq):
-        self.freq = freq
-        self.rtlsdr_source_0.set_center_freq(self.freq, 0)
-
-
-def main(top_block_cls=fm_radio_comp, options=None):
-
-    from distutils.version import StrictVersion
-    if StrictVersion(Qt.qVersion()) >= StrictVersion("4.5.0"):
-        style = gr.prefs().get_string('qtgui', 'style', 'raster')
-        Qt.QApplication.setGraphicsSystem(style)
-    qapp = Qt.QApplication(sys.argv)
-
-    tb = top_block_cls()
-    tb.start()
-    tb.show()
-
-    def quitting():
-        tb.stop()
-        tb.wait()
-    qapp.connect(qapp, Qt.SIGNAL("aboutToQuit()"), quitting)
-    qapp.exec_()
-
-
-if __name__ == '__main__':
-    main()
@@ -46,7 +46,7 @@
     </param>
     <param>
       <key>id</key>
-      <value>fm_radio_comp</value>
+      <value>fm_radio_comp_decim_lpf</value>
     </param>
     <param>
       <key>max_nouts</key>
@@ -129,7 +129,7 @@
     </param>
     <param>
       <key>step</key>
-      <value>1e6</value>
+      <value>1e5</value>
     </param>
     <param>
       <key>stop</key>
@@ -285,7 +285,7 @@
     </param>
     <param>
       <key>_enabled</key>
-      <value>0</value>
+      <value>1</value>
     </param>
     <param>
       <key>_coordinate</key>
@@ -332,7 +332,7 @@
     </param>
     <param>
       <key>cutoff_freq</key>
-      <value>500e3</value>
+      <value>100e3</value>
     </param>
     <param>
       <key>decim</key>
@@ -380,7 +380,7 @@
     </param>
     <param>
       <key>width</key>
-      <value>10e3</value>
+      <value>1e3</value>
     </param>
     <param>
       <key>win</key>
@@ -407,7 +407,7 @@
     </param>
     <param>
       <key>cutoff_freq</key>
-      <value>samp_rate*2</value>
+      <value>96e3</value>
     </param>
     <param>
       <key>decim</key>
@@ -455,7 +455,7 @@
     </param>
     <param>
       <key>width</key>
-      <value>1e4</value>
+      <value>1e3</value>
     </param>
     <param>
       <key>win</key>
@@ -789,7 +789,7 @@
     </param>
     <param>
       <key>_enabled</key>
-      <value>1</value>
+      <value>0</value>
     </param>
     <param>
       <key>fftsize</key>
+#!/usr/bin/env python2
+# -*- coding: utf-8 -*-
+##################################################
+# GNU Radio Python Flow Graph
+# Title: Fm Radio Comp Decim Lpf
+# Generated: Sat Mar 18 09:58:42 2017
+##################################################
+
+if __name__ == '__main__':
+    import ctypes
+    import sys
+    if sys.platform.startswith('linux'):
+        try:
+            x11 = ctypes.cdll.LoadLibrary('libX11.so')
+            x11.XInitThreads()
+        except:
+            print "Warning: failed to XInitThreads()"
+
+from PyQt4 import Qt
+from gnuradio import analog
+from gnuradio import audio
+from gnuradio import eng_notation
+from gnuradio import filter
+from gnuradio import gr
+from gnuradio import qtgui
+from gnuradio.eng_option import eng_option
+from gnuradio.filter import firdes
+from gnuradio.qtgui import Range, RangeWidget
+from optparse import OptionParser
+import osmosdr
+import sip
+import sys
+import time
+
+
+class fm_radio_comp_decim_lpf(gr.top_block, Qt.QWidget):
+
+    def __init__(self):
+        gr.top_block.__init__(self, "Fm Radio Comp Decim Lpf")
+        Qt.QWidget.__init__(self)
+        self.setWindowTitle("Fm Radio Comp Decim Lpf")
+        try:
+            self.setWindowIcon(Qt.QIcon.fromTheme('gnuradio-grc'))
+        except:
+            pass
+        self.top_scroll_layout = Qt.QVBoxLayout()
+        self.setLayout(self.top_scroll_layout)
+        self.top_scroll = Qt.QScrollArea()
+        self.top_scroll.setFrameStyle(Qt.QFrame.NoFrame)
+        self.top_scroll_layout.addWidget(self.top_scroll)
+        self.top_scroll.setWidgetResizable(True)
+        self.top_widget = Qt.QWidget()
+        self.top_scroll.setWidget(self.top_widget)
+        self.top_layout = Qt.QVBoxLayout(self.top_widget)
+        self.top_grid_layout = Qt.QGridLayout()
+        self.top_layout.addLayout(self.top_grid_layout)
+
+        self.settings = Qt.QSettings("GNU Radio", "fm_radio_comp_decim_lpf")
+        self.restoreGeometry(self.settings.value("geometry").toByteArray())
+
+        ##################################################
+        # Variables
+        ##################################################
+        self.samp_rate = samp_rate = 48e3
+        self.freq = freq = 91e6
+
+        ##################################################
+        # Blocks
+        ##################################################
+        self._freq_range = Range(1e6, 2e9, 1e5, 91e6, 200)
+        self._freq_win = RangeWidget(self._freq_range, self.set_freq, "freq", "counter_slider", float)
+        self.top_grid_layout.addWidget(self._freq_win, 0,0)
+        self.rtlsdr_source_0 = osmosdr.source( args="numchan=" + str(1) + " " + '' )
+        self.rtlsdr_source_0.set_sample_rate(samp_rate*10*4)
+        self.rtlsdr_source_0.set_center_freq(freq, 0)
+        self.rtlsdr_source_0.set_freq_corr(0, 0)
+        self.rtlsdr_source_0.set_dc_offset_mode(0, 0)
+        self.rtlsdr_source_0.set_iq_balance_mode(0, 0)
+        self.rtlsdr_source_0.set_gain_mode(False, 0)
+        self.rtlsdr_source_0.set_gain(20, 0)
+        self.rtlsdr_source_0.set_if_gain(20, 0)
+        self.rtlsdr_source_0.set_bb_gain(20, 0)
+        self.rtlsdr_source_0.set_antenna('', 0)
+        self.rtlsdr_source_0.set_bandwidth(0, 0)
+          
+        self.rational_resampler_xxx_0_0 = filter.rational_resampler_ccc(
+                interpolation=1,
+                decimation=4,
+                taps=None,
+                fractional_bw=None,
+        )
+        self.rational_resampler_xxx_0 = filter.rational_resampler_fff(
+                interpolation=1,
+                decimation=10,
+                taps=None,
+                fractional_bw=None,
+        )
+        self.qtgui_freq_sink_x_0 = qtgui.freq_sink_f(
+        	1024, #size
+        	firdes.WIN_BLACKMAN_hARRIS, #wintype
+        	0, #fc
+        	samp_rate, #bw
+        	"", #name
+        	2 #number of inputs
+        )
+        self.qtgui_freq_sink_x_0.set_update_time(0.10)
+        self.qtgui_freq_sink_x_0.set_y_axis(-140, 10)
+        self.qtgui_freq_sink_x_0.set_y_label('Relative Gain', 'dB')
+        self.qtgui_freq_sink_x_0.set_trigger_mode(qtgui.TRIG_MODE_FREE, 0.0, 0, "")
+        self.qtgui_freq_sink_x_0.enable_autoscale(False)
+        self.qtgui_freq_sink_x_0.enable_grid(True)
+        self.qtgui_freq_sink_x_0.set_fft_average(1.0)
+        self.qtgui_freq_sink_x_0.enable_axis_labels(True)
+        self.qtgui_freq_sink_x_0.enable_control_panel(False)
+        
+        if not True:
+          self.qtgui_freq_sink_x_0.disable_legend()
+        
+        if "float" == "float" or "float" == "msg_float":
+          self.qtgui_freq_sink_x_0.set_plot_pos_half(not True)
+        
+        labels = ['', '', '', '', '',
+                  '', '', '', '', '']
+        widths = [1, 1, 1, 1, 1,
+                  1, 1, 1, 1, 1]
+        colors = ["blue", "red", "green", "black", "cyan",
+                  "magenta", "yellow", "dark red", "dark green", "dark blue"]
+        alphas = [1.0, 1.0, 1.0, 1.0, 1.0,
+                  1.0, 1.0, 1.0, 1.0, 1.0]
+        for i in xrange(2):
+            if len(labels[i]) == 0:
+                self.qtgui_freq_sink_x_0.set_line_label(i, "Data {0}".format(i))
+            else:
+                self.qtgui_freq_sink_x_0.set_line_label(i, labels[i])
+            self.qtgui_freq_sink_x_0.set_line_width(i, widths[i])
+            self.qtgui_freq_sink_x_0.set_line_color(i, colors[i])
+            self.qtgui_freq_sink_x_0.set_line_alpha(i, alphas[i])
+        
+        self._qtgui_freq_sink_x_0_win = sip.wrapinstance(self.qtgui_freq_sink_x_0.pyqwidget(), Qt.QWidget)
+        self.top_grid_layout.addWidget(self._qtgui_freq_sink_x_0_win, 12,0)
+        self.low_pass_filter_0_0 = filter.fir_filter_fff(10, firdes.low_pass(
+        	1, samp_rate*10, 96e3, 1e3, firdes.WIN_HAMMING, 6.76))
+        self.low_pass_filter_0 = filter.fir_filter_ccf(4, firdes.low_pass(
+        	1, samp_rate*10*4, 100e3, 1e3, firdes.WIN_HAMMING, 6.76))
+        self.audio_sink_0 = audio.sink(int(samp_rate), '', True)
+        self.analog_wfm_rcv_0_0 = analog.wfm_rcv(
+        	quad_rate=samp_rate*10,
+        	audio_decimation=1,
+        )
+        self.analog_wfm_rcv_0 = analog.wfm_rcv(
+        	quad_rate=samp_rate*10,
+        	audio_decimation=1,
+        )
+
+        ##################################################
+        # Connections
+        ##################################################
+        self.connect((self.analog_wfm_rcv_0, 0), (self.rational_resampler_xxx_0, 0))    
+        self.connect((self.analog_wfm_rcv_0_0, 0), (self.low_pass_filter_0_0, 0))    
+        self.connect((self.low_pass_filter_0, 0), (self.analog_wfm_rcv_0_0, 0))    
+        self.connect((self.low_pass_filter_0_0, 0), (self.qtgui_freq_sink_x_0, 1))    
+        self.connect((self.rational_resampler_xxx_0, 0), (self.audio_sink_0, 0))    
+        self.connect((self.rational_resampler_xxx_0, 0), (self.qtgui_freq_sink_x_0, 0))    
+        self.connect((self.rational_resampler_xxx_0_0, 0), (self.analog_wfm_rcv_0, 0))    
+        self.connect((self.rtlsdr_source_0, 0), (self.low_pass_filter_0, 0))    
+        self.connect((self.rtlsdr_source_0, 0), (self.rational_resampler_xxx_0_0, 0))    
+
+    def closeEvent(self, event):
+        self.settings = Qt.QSettings("GNU Radio", "fm_radio_comp_decim_lpf")
+        self.settings.setValue("geometry", self.saveGeometry())
+        event.accept()
+
+    def get_samp_rate(self):
+        return self.samp_rate
+
+    def set_samp_rate(self, samp_rate):
+        self.samp_rate = samp_rate
+        self.rtlsdr_source_0.set_sample_rate(self.samp_rate*10*4)
+        self.qtgui_freq_sink_x_0.set_frequency_range(0, self.samp_rate)
+        self.low_pass_filter_0_0.set_taps(firdes.low_pass(1, self.samp_rate*10, 96e3, 1e3, firdes.WIN_HAMMING, 6.76))
+        self.low_pass_filter_0.set_taps(firdes.low_pass(1, self.samp_rate*10*4, 100e3, 1e3, firdes.WIN_HAMMING, 6.76))
+
+    def get_freq(self):
+        return self.freq
+
+    def set_freq(self, freq):
+        self.freq = freq
+        self.rtlsdr_source_0.set_center_freq(self.freq, 0)
+
+
+def main(top_block_cls=fm_radio_comp_decim_lpf, options=None):
+
+    from distutils.version import StrictVersion
+    if StrictVersion(Qt.qVersion()) >= StrictVersion("4.5.0"):
+        style = gr.prefs().get_string('qtgui', 'style', 'raster')
+        Qt.QApplication.setGraphicsSystem(style)
+    qapp = Qt.QApplication(sys.argv)
+
+    tb = top_block_cls()
+    tb.start()
+    tb.show()
+
+    def quitting():
+        tb.stop()
+        tb.wait()
+    qapp.connect(qapp, Qt.SIGNAL("aboutToQuit()"), quitting)
+    qapp.exec_()
+
+
+if __name__ == '__main__':
+    main()
...	...	@@ -89,7 +89,7 @@
89	89	</param>
90	90	<param>
91	91	<key>value</key>
92		- <value>91e6</value>
	92	+ <value>160011000</value>
93	93	</param>
94	94	<param>
95	95	<key>_enabled</key>
...	...	@@ -129,7 +129,7 @@
129	129	</param>
130	130	<param>
131	131	<key>step</key>
132		- <value>1e6</value>
	132	+ <value>1e3</value>
133	133	</param>
134	134	<param>
135	135	<key>stop</key>
...	...	@@ -266,6 +266,53 @@
266	266	</param>
267	267	</block>
268	268	<block>
	269	+ <key>blocks_wavfile_sink</key>
	270	+ <param>
	271	+ <key>bits_per_sample</key>
	272	+ <value>16</value>
	273	+ </param>
	274	+ <param>
	275	+ <key>alias</key>
	276	+ <value></value>
	277	+ </param>
	278	+ <param>
	279	+ <key>comment</key>
	280	+ <value></value>
	281	+ </param>
	282	+ <param>
	283	+ <key>affinity</key>
	284	+ <value></value>
	285	+ </param>
	286	+ <param>
	287	+ <key>_enabled</key>
	288	+ <value>0</value>
	289	+ </param>
	290	+ <param>
	291	+ <key>file</key>
	292	+ <value>a.wav</value>
	293	+ </param>
	294	+ <param>
	295	+ <key>_coordinate</key>
	296	+ <value>(1104, 528)</value>
	297	+ </param>
	298	+ <param>
	299	+ <key>_rotation</key>
	300	+ <value>0</value>
	301	+ </param>
	302	+ <param>
	303	+ <key>id</key>
	304	+ <value>blocks_wavfile_sink_0</value>
	305	+ </param>
	306	+ <param>
	307	+ <key>nchan</key>
	308	+ <value>1</value>
	309	+ </param>
	310	+ <param>
	311	+ <key>samp_rate</key>
	312	+ <value>int(samp_rate)</value>
	313	+ </param>
	314	+ </block>
	315	+ <block>
269	316	<key>low_pass_filter</key>
270	317	<param>
271	318	<key>beta</key>
...	...	@@ -293,7 +340,7 @@
293	340	</param>
294	341	<param>
295	342	<key>_enabled</key>
296		- <value>0</value>
	343	+ <value>1</value>
297	344	</param>
298	345	<param>
299	346	<key>type</key>
...	...	@@ -368,7 +415,7 @@
368	415	</param>
369	416	<param>
370	417	<key>_enabled</key>
371		- <value>0</value>
	418	+ <value>1</value>
372	419	</param>
373	420	<param>
374	421	<key>type</key>
...	...	@@ -443,7 +490,7 @@
443	490	</param>
444	491	<param>
445	492	<key>_enabled</key>
446		- <value>0</value>
	493	+ <value>1</value>
447	494	</param>
448	495	<param>
449	496	<key>fftsize</key>
450	497
...	...	@@ -629,11 +676,11 @@
629	676	</param>
630	677	<param>
631	678	<key>decim</key>
632		- <value>10</value>
	679	+ <value>4</value>
633	680	</param>
634	681	<param>
635	682	<key>_enabled</key>
636		- <value>1</value>
	683	+ <value>0</value>
637	684	</param>
638	685	<param>
639	686	<key>fbw</key>
640	687
...	...	@@ -688,11 +735,11 @@
688	735	</param>
689	736	<param>
690	737	<key>decim</key>
691		- <value>4</value>
	738	+ <value>10</value>
692	739	</param>
693	740	<param>
694	741	<key>_enabled</key>
695		- <value>1</value>
	742	+ <value>0</value>
696	743	</param>
697	744	<param>
698	745	<key>fbw</key>
699	746
...	...	@@ -2169,8 +2216,20 @@
2169	2216	<sink_key>0</sink_key>
2170	2217	</connection>
2171	2218	<connection>
	2219	+ <source_block_id>low_pass_filter_0_0</source_block_id>
	2220	+ <sink_block_id>blocks_wavfile_sink_0</sink_block_id>
	2221	+ <source_key>0</source_key>
	2222	+ <sink_key>0</sink_key>
	2223	+ </connection>
	2224	+ <connection>
2172	2225	<source_block_id>rational_resampler_xxx_0</source_block_id>
2173	2226	<sink_block_id>audio_sink_0</sink_block_id>
	2227	+ <source_key>0</source_key>
	2228	+ <sink_key>0</sink_key>
	2229	+ </connection>
	2230	+ <connection>
	2231	+ <source_block_id>rational_resampler_xxx_0</source_block_id>
	2232	+ <sink_block_id>blocks_wavfile_sink_0</sink_block_id>
2174	2233	<source_key>0</source_key>
2175	2234	<sink_key>0</sink_key>
2176	2235	</connection>
...	...	@@ -3,7 +3,7 @@
3	3	##################################################
4	4	# GNU Radio Python Flow Graph
5	5	# Title: Fm Radio
6		-# Generated: Thu Mar 16 21:47:51 2017
	6	+# Generated: Fri Mar 17 17:36:39 2017
7	7	##################################################
8	8
9	9	if __name__ == '__main__':
10	10
...	...	@@ -62,12 +62,12 @@
62	62	# Variables
63	63	##################################################
64	64	self.samp_rate = samp_rate = 48e3
65		- self.freq = freq = 91e6
	65	+ self.freq = freq = 160011000
66	66
67	67	##################################################
68	68	# Blocks
69	69	##################################################
70		- self._freq_range = Range(52e6, 2e9, 1e6, 91e6, 200)
	70	+ self._freq_range = Range(52e6, 2e9, 1e3, 160011000, 200)
71	71	self._freq_win = RangeWidget(self._freq_range, self.set_freq, "freq", "counter_slider", float)
72	72	self.top_grid_layout.addWidget(self._freq_win, 0,0)
73	73	self.rtlsdr_source_0 = osmosdr.source( args="numchan=" + str(1) + " " + '' )
...	...	@@ -83,18 +83,6 @@
83	83	self.rtlsdr_source_0.set_antenna('', 0)
84	84	self.rtlsdr_source_0.set_bandwidth(0, 0)
85	85
86		- self.rational_resampler_xxx_0_0 = filter.rational_resampler_ccc(
87		- interpolation=1,
88		- decimation=4,
89		- taps=None,
90		- fractional_bw=None,
91		- )
92		- self.rational_resampler_xxx_0 = filter.rational_resampler_fff(
93		- interpolation=1,
94		- decimation=10,
95		- taps=None,
96		- fractional_bw=None,
97		- )
98	86	self.qtgui_sink_x_1 = qtgui.sink_f(
99	87	1024, #fftsize
100	88	firdes.WIN_BLACKMAN_hARRIS, #wintype
...	...	@@ -114,6 +102,29 @@
114	102
115	103
116	104
	105	+ self.qtgui_sink_x_0 = qtgui.sink_c(
	106	+ 1024, #fftsize
	107	+ firdes.WIN_BLACKMAN_hARRIS, #wintype
	108	+ 0, #fc
	109	+ samp_rate104, #bw
	110	+ "", #name
	111	+ True, #plotfreq
	112	+ True, #plotwaterfall
	113	+ True, #plottime
	114	+ True, #plotconst
	115	+ )
	116	+ self.qtgui_sink_x_0.set_update_time(1.0/10)
	117	+ self._qtgui_sink_x_0_win = sip.wrapinstance(self.qtgui_sink_x_0.pyqwidget(), Qt.QWidget)
	118	+ self.top_grid_layout.addWidget(self._qtgui_sink_x_0_win, 9,0)
	119	+
	120	+ self.qtgui_sink_x_0.enable_rf_freq(False)
	121	+
	122	+
	123	+
	124	+ self.low_pass_filter_0_0 = filter.fir_filter_fff(10, firdes.low_pass(
	125	+ 1, samp_rate10, samp_rate2, 1e4, firdes.WIN_HAMMING, 6.76))
	126	+ self.low_pass_filter_0 = filter.fir_filter_ccf(4, firdes.low_pass(
	127	+ 1, samp_rate104, 500e3, 10e3, firdes.WIN_HAMMING, 6.76))
117	128	self.audio_sink_0 = audio.sink(int(samp_rate), '', True)
118	129	self.analog_wfm_rcv_0 = analog.wfm_rcv(
119	130	quad_rate=samp_rate*10,
120	131
...	...	@@ -123,11 +134,12 @@
123	134	##################################################
124	135	# Connections
125	136	##################################################
	137	+ self.connect((self.analog_wfm_rcv_0, 0), (self.low_pass_filter_0_0, 0))
126	138	self.connect((self.analog_wfm_rcv_0, 0), (self.qtgui_sink_x_1, 0))
127		- self.connect((self.analog_wfm_rcv_0, 0), (self.rational_resampler_xxx_0, 0))
128		- self.connect((self.rational_resampler_xxx_0, 0), (self.audio_sink_0, 0))
129		- self.connect((self.rational_resampler_xxx_0_0, 0), (self.analog_wfm_rcv_0, 0))
130		- self.connect((self.rtlsdr_source_0, 0), (self.rational_resampler_xxx_0_0, 0))
	139	+ self.connect((self.low_pass_filter_0, 0), (self.analog_wfm_rcv_0, 0))
	140	+ self.connect((self.low_pass_filter_0_0, 0), (self.audio_sink_0, 0))
	141	+ self.connect((self.rtlsdr_source_0, 0), (self.low_pass_filter_0, 0))
	142	+ self.connect((self.rtlsdr_source_0, 0), (self.qtgui_sink_x_0, 0))
131	143
132	144	def closeEvent(self, event):
133	145	self.settings = Qt.QSettings("GNU Radio", "fm_radio")
...	...	@@ -141,6 +153,9 @@
141	153	self.samp_rate = samp_rate
142	154	self.rtlsdr_source_0.set_sample_rate(self.samp_rate104)
143	155	self.qtgui_sink_x_1.set_frequency_range(0, self.samp_rate*10)
	156	+ self.qtgui_sink_x_0.set_frequency_range(0, self.samp_rate104)
	157	+ self.low_pass_filter_0_0.set_taps(firdes.low_pass(1, self.samp_rate10, self.samp_rate2, 1e4, firdes.WIN_HAMMING, 6.76))
	158	+ self.low_pass_filter_0.set_taps(firdes.low_pass(1, self.samp_rate104, 500e3, 10e3, firdes.WIN_HAMMING, 6.76))
144	159
145	160	def get_freq(self):
146	161	return self.freq
1		-#!/usr/bin/env python2
2		-# -- coding: utf-8 --
3		-##################################################
4		-# GNU Radio Python Flow Graph
5		-# Title: Fm Radio Comp
6		-# Generated: Thu Mar 16 21:47:10 2017
7		-##################################################
8		-
9		-if __name__ == '__main__':
10		- import ctypes
11		- import sys
12		- if sys.platform.startswith('linux'):
13		- try:
14		- x11 = ctypes.cdll.LoadLibrary('libX11.so')
15		- x11.XInitThreads()
16		- except:
17		- print "Warning: failed to XInitThreads()"
18		-
19		-from PyQt4 import Qt
20		-from gnuradio import analog
21		-from gnuradio import eng_notation
22		-from gnuradio import filter
23		-from gnuradio import gr
24		-from gnuradio import qtgui
25		-from gnuradio.eng_option import eng_option
26		-from gnuradio.filter import firdes
27		-from gnuradio.qtgui import Range, RangeWidget
28		-from optparse import OptionParser
29		-import osmosdr
30		-import sip
31		-import sys
32		-import time
33		-
34		-
35		-class fm_radio_comp(gr.top_block, Qt.QWidget):
36		-
37		- def __init__(self):
38		- gr.top_block.__init__(self, "Fm Radio Comp")
39		- Qt.QWidget.__init__(self)
40		- self.setWindowTitle("Fm Radio Comp")
41		- try:
42		- self.setWindowIcon(Qt.QIcon.fromTheme('gnuradio-grc'))
43		- except:
44		- pass
45		- self.top_scroll_layout = Qt.QVBoxLayout()
46		- self.setLayout(self.top_scroll_layout)
47		- self.top_scroll = Qt.QScrollArea()
48		- self.top_scroll.setFrameStyle(Qt.QFrame.NoFrame)
49		- self.top_scroll_layout.addWidget(self.top_scroll)
50		- self.top_scroll.setWidgetResizable(True)
51		- self.top_widget = Qt.QWidget()
52		- self.top_scroll.setWidget(self.top_widget)
53		- self.top_layout = Qt.QVBoxLayout(self.top_widget)
54		- self.top_grid_layout = Qt.QGridLayout()
55		- self.top_layout.addLayout(self.top_grid_layout)
56		-
57		- self.settings = Qt.QSettings("GNU Radio", "fm_radio_comp")
58		- self.restoreGeometry(self.settings.value("geometry").toByteArray())
59		-
60		- ##################################################
61		- # Variables
62		- ##################################################
63		- self.samp_rate = samp_rate = 48e3
64		- self.freq = freq = 91e6
65		-
66		- ##################################################
67		- # Blocks
68		- ##################################################
69		- self._freq_range = Range(1e6, 2e9, 1e6, 91e6, 200)
70		- self._freq_win = RangeWidget(self._freq_range, self.set_freq, "freq", "counter_slider", float)
71		- self.top_grid_layout.addWidget(self._freq_win, 0,0)
72		- self.rtlsdr_source_0 = osmosdr.source( args="numchan=" + str(1) + " " + '' )
73		- self.rtlsdr_source_0.set_sample_rate(samp_rate104)
74		- self.rtlsdr_source_0.set_center_freq(freq, 0)
75		- self.rtlsdr_source_0.set_freq_corr(0, 0)
76		- self.rtlsdr_source_0.set_dc_offset_mode(0, 0)
77		- self.rtlsdr_source_0.set_iq_balance_mode(0, 0)
78		- self.rtlsdr_source_0.set_gain_mode(False, 0)
79		- self.rtlsdr_source_0.set_gain(20, 0)
80		- self.rtlsdr_source_0.set_if_gain(20, 0)
81		- self.rtlsdr_source_0.set_bb_gain(20, 0)
82		- self.rtlsdr_source_0.set_antenna('', 0)
83		- self.rtlsdr_source_0.set_bandwidth(0, 0)
84		-
85		- self.rational_resampler_xxx_0_0 = filter.rational_resampler_ccc(
86		- interpolation=1,
87		- decimation=4,
88		- taps=None,
89		- fractional_bw=None,
90		- )
91		- self.rational_resampler_xxx_0 = filter.rational_resampler_fff(
92		- interpolation=1,
93		- decimation=10,
94		- taps=None,
95		- fractional_bw=None,
96		- )
97		- self.qtgui_sink_x_0 = qtgui.sink_c(
98		- 1024, #fftsize
99		- firdes.WIN_BLACKMAN_hARRIS, #wintype
100		- 0, #fc
101		- samp_rate104, #bw
102		- "", #name
103		- True, #plotfreq
104		- True, #plotwaterfall
105		- True, #plottime
106		- True, #plotconst
107		- )
108		- self.qtgui_sink_x_0.set_update_time(1.0/10)
109		- self._qtgui_sink_x_0_win = sip.wrapinstance(self.qtgui_sink_x_0.pyqwidget(), Qt.QWidget)
110		- self.top_grid_layout.addWidget(self._qtgui_sink_x_0_win, 9,0)
111		-
112		- self.qtgui_sink_x_0.enable_rf_freq(False)
113		-
114		-
115		-
116		- self.qtgui_freq_sink_x_0 = qtgui.freq_sink_f(
117		- 1024, #size
118		- firdes.WIN_BLACKMAN_hARRIS, #wintype
119		- 0, #fc
120		- samp_rate, #bw
121		- "", #name
122		- 2 #number of inputs
123		- )
124		- self.qtgui_freq_sink_x_0.set_update_time(0.10)
125		- self.qtgui_freq_sink_x_0.set_y_axis(-140, 10)
126		- self.qtgui_freq_sink_x_0.set_y_label('Relative Gain', 'dB')
127		- self.qtgui_freq_sink_x_0.set_trigger_mode(qtgui.TRIG_MODE_FREE, 0.0, 0, "")
128		- self.qtgui_freq_sink_x_0.enable_autoscale(False)
129		- self.qtgui_freq_sink_x_0.enable_grid(True)
130		- self.qtgui_freq_sink_x_0.set_fft_average(1.0)
131		- self.qtgui_freq_sink_x_0.enable_axis_labels(True)
132		- self.qtgui_freq_sink_x_0.enable_control_panel(False)
133		-
134		- if not True:
135		- self.qtgui_freq_sink_x_0.disable_legend()
136		-
137		- if "float" == "float" or "float" == "msg_float":
138		- self.qtgui_freq_sink_x_0.set_plot_pos_half(not True)
139		-
140		- labels = ['', '', '', '', '',
141		- '', '', '', '', '']
142		- widths = [1, 1, 1, 1, 1,
143		- 1, 1, 1, 1, 1]
144		- colors = ["blue", "red", "green", "black", "cyan",
145		- "magenta", "yellow", "dark red", "dark green", "dark blue"]
146		- alphas = [1.0, 1.0, 1.0, 1.0, 1.0,
147		- 1.0, 1.0, 1.0, 1.0, 1.0]
148		- for i in xrange(2):
149		- if len(labels[i]) == 0:
150		- self.qtgui_freq_sink_x_0.set_line_label(i, "Data {0}".format(i))
151		- else:
152		- self.qtgui_freq_sink_x_0.set_line_label(i, labels[i])
153		- self.qtgui_freq_sink_x_0.set_line_width(i, widths[i])
154		- self.qtgui_freq_sink_x_0.set_line_color(i, colors[i])
155		- self.qtgui_freq_sink_x_0.set_line_alpha(i, alphas[i])
156		-
157		- self._qtgui_freq_sink_x_0_win = sip.wrapinstance(self.qtgui_freq_sink_x_0.pyqwidget(), Qt.QWidget)
158		- self.top_grid_layout.addWidget(self._qtgui_freq_sink_x_0_win, 12,0)
159		- self.low_pass_filter_0_0 = filter.fir_filter_fff(10, firdes.low_pass(
160		- 1, samp_rate10, samp_rate2, 1e4, firdes.WIN_HAMMING, 6.76))
161		- self.low_pass_filter_0 = filter.fir_filter_ccf(4, firdes.low_pass(
162		- 1, samp_rate104, 500e3, 10e3, firdes.WIN_HAMMING, 6.76))
163		- self.analog_wfm_rcv_0_0 = analog.wfm_rcv(
164		- quad_rate=samp_rate*10,
165		- audio_decimation=1,
166		- )
167		- self.analog_wfm_rcv_0 = analog.wfm_rcv(
168		- quad_rate=samp_rate*10,
169		- audio_decimation=1,
170		- )
171		-
172		- ##################################################
173		- # Connections
174		- ##################################################
175		- self.connect((self.analog_wfm_rcv_0, 0), (self.rational_resampler_xxx_0, 0))
176		- self.connect((self.analog_wfm_rcv_0_0, 0), (self.low_pass_filter_0_0, 0))
177		- self.connect((self.low_pass_filter_0, 0), (self.analog_wfm_rcv_0_0, 0))
178		- self.connect((self.low_pass_filter_0_0, 0), (self.qtgui_freq_sink_x_0, 1))
179		- self.connect((self.rational_resampler_xxx_0, 0), (self.qtgui_freq_sink_x_0, 0))
180		- self.connect((self.rational_resampler_xxx_0_0, 0), (self.analog_wfm_rcv_0, 0))
181		- self.connect((self.rtlsdr_source_0, 0), (self.low_pass_filter_0, 0))
182		- self.connect((self.rtlsdr_source_0, 0), (self.qtgui_sink_x_0, 0))
183		- self.connect((self.rtlsdr_source_0, 0), (self.rational_resampler_xxx_0_0, 0))
184		-
185		- def closeEvent(self, event):
186		- self.settings = Qt.QSettings("GNU Radio", "fm_radio_comp")
187		- self.settings.setValue("geometry", self.saveGeometry())
188		- event.accept()
189		-
190		- def get_samp_rate(self):
191		- return self.samp_rate
192		-
193		- def set_samp_rate(self, samp_rate):
194		- self.samp_rate = samp_rate
195		- self.rtlsdr_source_0.set_sample_rate(self.samp_rate104)
196		- self.qtgui_sink_x_0.set_frequency_range(0, self.samp_rate104)
197		- self.qtgui_freq_sink_x_0.set_frequency_range(0, self.samp_rate)
198		- self.low_pass_filter_0_0.set_taps(firdes.low_pass(1, self.samp_rate10, self.samp_rate2, 1e4, firdes.WIN_HAMMING, 6.76))
199		- self.low_pass_filter_0.set_taps(firdes.low_pass(1, self.samp_rate104, 500e3, 10e3, firdes.WIN_HAMMING, 6.76))
200		-
201		- def get_freq(self):
202		- return self.freq
203		-
204		- def set_freq(self, freq):
205		- self.freq = freq
206		- self.rtlsdr_source_0.set_center_freq(self.freq, 0)
207		-
208		-
209		-def main(top_block_cls=fm_radio_comp, options=None):
210		-
211		- from distutils.version import StrictVersion
212		- if StrictVersion(Qt.qVersion()) >= StrictVersion("4.5.0"):
213		- style = gr.prefs().get_string('qtgui', 'style', 'raster')
214		- Qt.QApplication.setGraphicsSystem(style)
215		- qapp = Qt.QApplication(sys.argv)
216		-
217		- tb = top_block_cls()
218		- tb.start()
219		- tb.show()
220		-
221		- def quitting():
222		- tb.stop()
223		- tb.wait()
224		- qapp.connect(qapp, Qt.SIGNAL("aboutToQuit()"), quitting)
225		- qapp.exec_()
226		-
227		-
228		-if __name__ == '__main__':
229		- main()
...	...	@@ -46,7 +46,7 @@
46	46	</param>
47	47	<param>
48	48	<key>id</key>
49		- <value>fm_radio_comp</value>
	49	+ <value>fm_radio_comp_decim_lpf</value>
50	50	</param>
51	51	<param>
52	52	<key>max_nouts</key>
...	...	@@ -129,7 +129,7 @@
129	129	</param>
130	130	<param>
131	131	<key>step</key>
132		- <value>1e6</value>
	132	+ <value>1e5</value>
133	133	</param>
134	134	<param>
135	135	<key>stop</key>
...	...	@@ -285,7 +285,7 @@
285	285	</param>
286	286	<param>
287	287	<key>_enabled</key>
288		- <value>0</value>
	288	+ <value>1</value>
289	289	</param>
290	290	<param>
291	291	<key>_coordinate</key>
...	...	@@ -332,7 +332,7 @@
332	332	</param>
333	333	<param>
334	334	<key>cutoff_freq</key>
335		- <value>500e3</value>
	335	+ <value>100e3</value>
336	336	</param>
337	337	<param>
338	338	<key>decim</key>
...	...	@@ -380,7 +380,7 @@
380	380	</param>
381	381	<param>
382	382	<key>width</key>
383		- <value>10e3</value>
	383	+ <value>1e3</value>
384	384	</param>
385	385	<param>
386	386	<key>win</key>
...	...	@@ -407,7 +407,7 @@
407	407	</param>
408	408	<param>
409	409	<key>cutoff_freq</key>
410		- <value>samp_rate*2</value>
	410	+ <value>96e3</value>
411	411	</param>
412	412	<param>
413	413	<key>decim</key>
...	...	@@ -455,7 +455,7 @@
455	455	</param>
456	456	<param>
457	457	<key>width</key>
458		- <value>1e4</value>
	458	+ <value>1e3</value>
459	459	</param>
460	460	<param>
461	461	<key>win</key>
...	...	@@ -789,7 +789,7 @@
789	789	</param>
790	790	<param>
791	791	<key>_enabled</key>
792		- <value>1</value>
	792	+ <value>0</value>
793	793	</param>
794	794	<param>
795	795	<key>fftsize</key>
	1	+#!/usr/bin/env python2
	2	+# -- coding: utf-8 --
	3	+##################################################
	4	+# GNU Radio Python Flow Graph
	5	+# Title: Fm Radio Comp Decim Lpf
	6	+# Generated: Sat Mar 18 09:58:42 2017
	7	+##################################################
	8	+
	9	+if __name__ == '__main__':
	10	+ import ctypes
	11	+ import sys
	12	+ if sys.platform.startswith('linux'):
	13	+ try:
	14	+ x11 = ctypes.cdll.LoadLibrary('libX11.so')
	15	+ x11.XInitThreads()
	16	+ except:
	17	+ print "Warning: failed to XInitThreads()"
	18	+
	19	+from PyQt4 import Qt
	20	+from gnuradio import analog
	21	+from gnuradio import audio
	22	+from gnuradio import eng_notation
	23	+from gnuradio import filter
	24	+from gnuradio import gr
	25	+from gnuradio import qtgui
	26	+from gnuradio.eng_option import eng_option
	27	+from gnuradio.filter import firdes
	28	+from gnuradio.qtgui import Range, RangeWidget
	29	+from optparse import OptionParser
	30	+import osmosdr
	31	+import sip
	32	+import sys
	33	+import time
	34	+
	35	+
	36	+class fm_radio_comp_decim_lpf(gr.top_block, Qt.QWidget):
	37	+
	38	+ def __init__(self):
	39	+ gr.top_block.__init__(self, "Fm Radio Comp Decim Lpf")
	40	+ Qt.QWidget.__init__(self)
	41	+ self.setWindowTitle("Fm Radio Comp Decim Lpf")
	42	+ try:
	43	+ self.setWindowIcon(Qt.QIcon.fromTheme('gnuradio-grc'))
	44	+ except:
	45	+ pass
	46	+ self.top_scroll_layout = Qt.QVBoxLayout()
	47	+ self.setLayout(self.top_scroll_layout)
	48	+ self.top_scroll = Qt.QScrollArea()
	49	+ self.top_scroll.setFrameStyle(Qt.QFrame.NoFrame)
	50	+ self.top_scroll_layout.addWidget(self.top_scroll)
	51	+ self.top_scroll.setWidgetResizable(True)
	52	+ self.top_widget = Qt.QWidget()
	53	+ self.top_scroll.setWidget(self.top_widget)
	54	+ self.top_layout = Qt.QVBoxLayout(self.top_widget)
	55	+ self.top_grid_layout = Qt.QGridLayout()
	56	+ self.top_layout.addLayout(self.top_grid_layout)
	57	+
	58	+ self.settings = Qt.QSettings("GNU Radio", "fm_radio_comp_decim_lpf")
	59	+ self.restoreGeometry(self.settings.value("geometry").toByteArray())
	60	+
	61	+ ##################################################
	62	+ # Variables
	63	+ ##################################################
	64	+ self.samp_rate = samp_rate = 48e3
	65	+ self.freq = freq = 91e6
	66	+
	67	+ ##################################################
	68	+ # Blocks
	69	+ ##################################################
	70	+ self._freq_range = Range(1e6, 2e9, 1e5, 91e6, 200)
	71	+ self._freq_win = RangeWidget(self._freq_range, self.set_freq, "freq", "counter_slider", float)
	72	+ self.top_grid_layout.addWidget(self._freq_win, 0,0)
	73	+ self.rtlsdr_source_0 = osmosdr.source( args="numchan=" + str(1) + " " + '' )
	74	+ self.rtlsdr_source_0.set_sample_rate(samp_rate104)
	75	+ self.rtlsdr_source_0.set_center_freq(freq, 0)
	76	+ self.rtlsdr_source_0.set_freq_corr(0, 0)
	77	+ self.rtlsdr_source_0.set_dc_offset_mode(0, 0)
	78	+ self.rtlsdr_source_0.set_iq_balance_mode(0, 0)
	79	+ self.rtlsdr_source_0.set_gain_mode(False, 0)
	80	+ self.rtlsdr_source_0.set_gain(20, 0)
	81	+ self.rtlsdr_source_0.set_if_gain(20, 0)
	82	+ self.rtlsdr_source_0.set_bb_gain(20, 0)
	83	+ self.rtlsdr_source_0.set_antenna('', 0)
	84	+ self.rtlsdr_source_0.set_bandwidth(0, 0)
	85	+
	86	+ self.rational_resampler_xxx_0_0 = filter.rational_resampler_ccc(
	87	+ interpolation=1,
	88	+ decimation=4,
	89	+ taps=None,
	90	+ fractional_bw=None,
	91	+ )
	92	+ self.rational_resampler_xxx_0 = filter.rational_resampler_fff(
	93	+ interpolation=1,
	94	+ decimation=10,
	95	+ taps=None,
	96	+ fractional_bw=None,
	97	+ )
	98	+ self.qtgui_freq_sink_x_0 = qtgui.freq_sink_f(
	99	+ 1024, #size
	100	+ firdes.WIN_BLACKMAN_hARRIS, #wintype
	101	+ 0, #fc
	102	+ samp_rate, #bw
	103	+ "", #name
	104	+ 2 #number of inputs
	105	+ )
	106	+ self.qtgui_freq_sink_x_0.set_update_time(0.10)
	107	+ self.qtgui_freq_sink_x_0.set_y_axis(-140, 10)
	108	+ self.qtgui_freq_sink_x_0.set_y_label('Relative Gain', 'dB')
	109	+ self.qtgui_freq_sink_x_0.set_trigger_mode(qtgui.TRIG_MODE_FREE, 0.0, 0, "")
	110	+ self.qtgui_freq_sink_x_0.enable_autoscale(False)
	111	+ self.qtgui_freq_sink_x_0.enable_grid(True)
	112	+ self.qtgui_freq_sink_x_0.set_fft_average(1.0)
	113	+ self.qtgui_freq_sink_x_0.enable_axis_labels(True)
	114	+ self.qtgui_freq_sink_x_0.enable_control_panel(False)
	115	+
	116	+ if not True:
	117	+ self.qtgui_freq_sink_x_0.disable_legend()
	118	+
	119	+ if "float" == "float" or "float" == "msg_float":
	120	+ self.qtgui_freq_sink_x_0.set_plot_pos_half(not True)
	121	+
	122	+ labels = ['', '', '', '', '',
	123	+ '', '', '', '', '']
	124	+ widths = [1, 1, 1, 1, 1,
	125	+ 1, 1, 1, 1, 1]
	126	+ colors = ["blue", "red", "green", "black", "cyan",
	127	+ "magenta", "yellow", "dark red", "dark green", "dark blue"]
	128	+ alphas = [1.0, 1.0, 1.0, 1.0, 1.0,
	129	+ 1.0, 1.0, 1.0, 1.0, 1.0]
	130	+ for i in xrange(2):
	131	+ if len(labels[i]) == 0:
	132	+ self.qtgui_freq_sink_x_0.set_line_label(i, "Data {0}".format(i))
	133	+ else:
	134	+ self.qtgui_freq_sink_x_0.set_line_label(i, labels[i])
	135	+ self.qtgui_freq_sink_x_0.set_line_width(i, widths[i])
	136	+ self.qtgui_freq_sink_x_0.set_line_color(i, colors[i])
	137	+ self.qtgui_freq_sink_x_0.set_line_alpha(i, alphas[i])
	138	+
	139	+ self._qtgui_freq_sink_x_0_win = sip.wrapinstance(self.qtgui_freq_sink_x_0.pyqwidget(), Qt.QWidget)
	140	+ self.top_grid_layout.addWidget(self._qtgui_freq_sink_x_0_win, 12,0)
	141	+ self.low_pass_filter_0_0 = filter.fir_filter_fff(10, firdes.low_pass(
	142	+ 1, samp_rate*10, 96e3, 1e3, firdes.WIN_HAMMING, 6.76))
	143	+ self.low_pass_filter_0 = filter.fir_filter_ccf(4, firdes.low_pass(
	144	+ 1, samp_rate104, 100e3, 1e3, firdes.WIN_HAMMING, 6.76))
	145	+ self.audio_sink_0 = audio.sink(int(samp_rate), '', True)
	146	+ self.analog_wfm_rcv_0_0 = analog.wfm_rcv(
	147	+ quad_rate=samp_rate*10,
	148	+ audio_decimation=1,
	149	+ )
	150	+ self.analog_wfm_rcv_0 = analog.wfm_rcv(
	151	+ quad_rate=samp_rate*10,
	152	+ audio_decimation=1,
	153	+ )
	154	+
	155	+ ##################################################
	156	+ # Connections
	157	+ ##################################################
	158	+ self.connect((self.analog_wfm_rcv_0, 0), (self.rational_resampler_xxx_0, 0))
	159	+ self.connect((self.analog_wfm_rcv_0_0, 0), (self.low_pass_filter_0_0, 0))
	160	+ self.connect((self.low_pass_filter_0, 0), (self.analog_wfm_rcv_0_0, 0))
	161	+ self.connect((self.low_pass_filter_0_0, 0), (self.qtgui_freq_sink_x_0, 1))
	162	+ self.connect((self.rational_resampler_xxx_0, 0), (self.audio_sink_0, 0))
	163	+ self.connect((self.rational_resampler_xxx_0, 0), (self.qtgui_freq_sink_x_0, 0))
	164	+ self.connect((self.rational_resampler_xxx_0_0, 0), (self.analog_wfm_rcv_0, 0))
	165	+ self.connect((self.rtlsdr_source_0, 0), (self.low_pass_filter_0, 0))
	166	+ self.connect((self.rtlsdr_source_0, 0), (self.rational_resampler_xxx_0_0, 0))
	167	+
	168	+ def closeEvent(self, event):
	169	+ self.settings = Qt.QSettings("GNU Radio", "fm_radio_comp_decim_lpf")
	170	+ self.settings.setValue("geometry", self.saveGeometry())
	171	+ event.accept()
	172	+
	173	+ def get_samp_rate(self):
	174	+ return self.samp_rate
	175	+
	176	+ def set_samp_rate(self, samp_rate):
	177	+ self.samp_rate = samp_rate
	178	+ self.rtlsdr_source_0.set_sample_rate(self.samp_rate104)
	179	+ self.qtgui_freq_sink_x_0.set_frequency_range(0, self.samp_rate)
	180	+ self.low_pass_filter_0_0.set_taps(firdes.low_pass(1, self.samp_rate*10, 96e3, 1e3, firdes.WIN_HAMMING, 6.76))
	181	+ self.low_pass_filter_0.set_taps(firdes.low_pass(1, self.samp_rate104, 100e3, 1e3, firdes.WIN_HAMMING, 6.76))
	182	+
	183	+ def get_freq(self):
	184	+ return self.freq
	185	+
	186	+ def set_freq(self, freq):
	187	+ self.freq = freq
	188	+ self.rtlsdr_source_0.set_center_freq(self.freq, 0)
	189	+
	190	+
	191	+def main(top_block_cls=fm_radio_comp_decim_lpf, options=None):
	192	+
	193	+ from distutils.version import StrictVersion
	194	+ if StrictVersion(Qt.qVersion()) >= StrictVersion("4.5.0"):
	195	+ style = gr.prefs().get_string('qtgui', 'style', 'raster')
	196	+ Qt.QApplication.setGraphicsSystem(style)
	197	+ qapp = Qt.QApplication(sys.argv)
	198	+
	199	+ tb = top_block_cls()
	200	+ tb.start()
	201	+ tb.show()
	202	+
	203	+ def quitting():
	204	+ tb.stop()
	205	+ tb.wait()
	206	+ qapp.connect(qapp, Qt.SIGNAL("aboutToQuit()"), quitting)
	207	+ qapp.exec_()
	208	+
	209	+
	210	+if __name__ == '__main__':
	211	+ main()