#!/usr/bin/env python ################################################## # Gnuradio Python Flow Graph # Title: Scanna # Generated: Sat Nov 12 11:39:05 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=100, 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, 100000, 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=100000, 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.analog_pwr_squelch_xx_0, 0), (self.audio_sink_0, 0)) self.connect((self.rtlsdr_source_0, 0), (self.wxgui_fftsink2_0, 0)) self.connect((self.rtlsdr_source_0, 0), (self.rational_resampler_xxx_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, 100000, 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.wxgui_fftsink2_0.set_sample_rate(self.samp_rate) self.rtlsdr_source_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._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.rtlsdr_source_0.set_center_freq(self.freq_1, 0) 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()