first commit

scanna.py

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+#!/usr/bin/env python
+##################################################
+# Gnuradio Python Flow Graph
+# Title: Scanna
+# Generated: Sat Nov  5 18:04:51 2016
+##################################################
+
+from gnuradio import analog
+from gnuradio import audio
+from gnuradio import blocks
+from gnuradio import eng_notation
+from gnuradio import filter
+from gnuradio import gr
+from gnuradio import wxgui
+from gnuradio.eng_option import eng_option
+from gnuradio.fft import window
+from gnuradio.filter import firdes
+from gnuradio.wxgui import fftsink2
+from gnuradio.wxgui import forms
+from grc_gnuradio import wxgui as grc_wxgui
+from optparse import OptionParser
+import osmosdr
+import wx
+
+class scanna(grc_wxgui.top_block_gui):
+
+    def __init__(self):
+        grc_wxgui.top_block_gui.__init__(self, title="Scanna")
+        _icon_path = "/usr/share/icons/hicolor/32x32/apps/gnuradio-grc.png"
+        self.SetIcon(wx.Icon(_icon_path, wx.BITMAP_TYPE_ANY))
+
+        ##################################################
+        # Variables
+        ##################################################
+        self.volume = volume = 1
+        self.variable_0 = variable_0 = 0
+        self.transition = transition = 8000
+        self.squelch_0 = squelch_0 = 0
+        self.samp_rate = samp_rate = 2000000
+        self.freq_1 = freq_1 = 446000000
+        self.cutoff = cutoff = 100e3
+
+        ##################################################
+        # Blocks
+        ##################################################
+        self._squelch_0_text_box = forms.text_box(
+        	parent=self.GetWin(),
+        	value=self.squelch_0,
+        	callback=self.set_squelch_0,
+        	label="Squelch (db)",
+        	converter=forms.int_converter(),
+        )
+        self.Add(self._squelch_0_text_box)
+        _freq_1_sizer = wx.BoxSizer(wx.VERTICAL)
+        self._freq_1_text_box = forms.text_box(
+        	parent=self.GetWin(),
+        	sizer=_freq_1_sizer,
+        	value=self.freq_1,
+        	callback=self.set_freq_1,
+        	label="Frequency",
+        	converter=forms.float_converter(),
+        	proportion=0,
+        )
+        self._freq_1_slider = forms.slider(
+        	parent=self.GetWin(),
+        	sizer=_freq_1_sizer,
+        	value=self.freq_1,
+        	callback=self.set_freq_1,
+        	minimum=445800000,
+        	maximum=446100000,
+        	num_steps=200,
+        	style=wx.SL_HORIZONTAL,
+        	cast=float,
+        	proportion=1,
+        )
+        self.Add(_freq_1_sizer)
+        self.wxgui_fftsink2_0 = fftsink2.fft_sink_c(
+        	self.GetWin(),
+        	baseband_freq=freq_1,
+        	y_per_div=10,
+        	y_divs=10,
+        	ref_level=0,
+        	ref_scale=2,
+        	sample_rate=samp_rate,
+        	fft_size=1024,
+        	fft_rate=15,
+        	average=False,
+        	avg_alpha=None,
+        	title="FFT Plot",
+        	peak_hold=False,
+        )
+        self.Add(self.wxgui_fftsink2_0.win)
+        self.rtlsdr_source_0 = osmosdr.source( args="numchan=" + str(1) + " " + "" )
+        self.rtlsdr_source_0.set_sample_rate(samp_rate)
+        self.rtlsdr_source_0.set_center_freq(freq_1, 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(True, 0)
+        self.rtlsdr_source_0.set_gain(10, 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_1 = filter.rational_resampler_fff(
+                interpolation=24,
+                decimation=25,
+                taps=None,
+                fractional_bw=None,
+        )
+        self.rational_resampler_xxx_0 = filter.rational_resampler_ccc(
+                interpolation=500000,
+                decimation=2000000,
+                taps=None,
+                fractional_bw=None,
+        )
+        self.low_pass_filter_0 = filter.fir_filter_ccf(1, firdes.low_pass(
+        	1, 500000, freq_1, transition, firdes.WIN_HAMMING, 6.76))
+        self.blocks_wavfile_sink_0 = blocks.wavfile_sink("./output.wav", 1, 24000, 8)
+        self.audio_sink_0 = audio.sink(24000, "", True)
+        self.analog_pwr_squelch_xx_0 = analog.pwr_squelch_ff(squelch_0, 1, 1, True)
+        self.analog_nbfm_rx_0 = analog.nbfm_rx(
+        	audio_rate=25000,
+        	quad_rate=500000,
+        	tau=75e-6,
+        	max_dev=5e3,
+        )
+
+        ##################################################
+        # Connections
+        ##################################################
+        self.connect((self.analog_pwr_squelch_xx_0, 0), (self.blocks_wavfile_sink_0, 0))
+        self.connect((self.rational_resampler_xxx_1, 0), (self.analog_pwr_squelch_xx_0, 0))
+        self.connect((self.analog_nbfm_rx_0, 0), (self.rational_resampler_xxx_1, 0))
+        self.connect((self.low_pass_filter_0, 0), (self.analog_nbfm_rx_0, 0))
+        self.connect((self.rational_resampler_xxx_0, 0), (self.low_pass_filter_0, 0))
+        self.connect((self.rtlsdr_source_0, 0), (self.rational_resampler_xxx_0, 0))
+        self.connect((self.analog_pwr_squelch_xx_0, 0), (self.audio_sink_0, 0))
+        self.connect((self.rtlsdr_source_0, 0), (self.wxgui_fftsink2_0, 0))
+
+
+
+    def get_volume(self):
+        return self.volume
+
+    def set_volume(self, volume):
+        self.volume = volume
+
+    def get_variable_0(self):
+        return self.variable_0
+
+    def set_variable_0(self, variable_0):
+        self.variable_0 = variable_0
+
+    def get_transition(self):
+        return self.transition
+
+    def set_transition(self, transition):
+        self.transition = transition
+        self.low_pass_filter_0.set_taps(firdes.low_pass(1, 500000, self.freq_1, self.transition, firdes.WIN_HAMMING, 6.76))
+
+    def get_squelch_0(self):
+        return self.squelch_0
+
+    def set_squelch_0(self, squelch_0):
+        self.squelch_0 = squelch_0
+        self.analog_pwr_squelch_xx_0.set_threshold(self.squelch_0)
+        self._squelch_0_text_box.set_value(self.squelch_0)
+
+    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)
+        self.wxgui_fftsink2_0.set_sample_rate(self.samp_rate)
+
+    def get_freq_1(self):
+        return self.freq_1
+
+    def set_freq_1(self, freq_1):
+        self.freq_1 = freq_1
+        self.rtlsdr_source_0.set_center_freq(self.freq_1, 0)
+        self._freq_1_slider.set_value(self.freq_1)
+        self._freq_1_text_box.set_value(self.freq_1)
+        self.wxgui_fftsink2_0.set_baseband_freq(self.freq_1)
+        self.low_pass_filter_0.set_taps(firdes.low_pass(1, 500000, self.freq_1, self.transition, firdes.WIN_HAMMING, 6.76))
+
+    def get_cutoff(self):
+        return self.cutoff
+
+    def set_cutoff(self, cutoff):
+        self.cutoff = cutoff
+
+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()"
+    parser = OptionParser(option_class=eng_option, usage="%prog: [options]")
+    (options, args) = parser.parse_args()
+    tb = scanna()
+    tb.Start(True)
+    tb.Wait()