diff options
Diffstat (limited to 'gr-uhd/examples/python/usrp_nbfm_rcv.py')
| -rwxr-xr-x | gr-uhd/examples/python/usrp_nbfm_rcv.py | 38 |
1 files changed, 19 insertions, 19 deletions
diff --git a/gr-uhd/examples/python/usrp_nbfm_rcv.py b/gr-uhd/examples/python/usrp_nbfm_rcv.py index 6fdf95a30c..571abe8c90 100755 --- a/gr-uhd/examples/python/usrp_nbfm_rcv.py +++ b/gr-uhd/examples/python/usrp_nbfm_rcv.py @@ -1,24 +1,24 @@ #!/usr/bin/env python # # Copyright 2005,2007,2011 Free Software Foundation, Inc. -# +# # This file is part of GNU Radio -# +# # GNU Radio is free software; you can redistribute it and/or modify # it under the terms of the GNU General Public License as published by # the Free Software Foundation; either version 3, or (at your option) # any later version. -# +# # GNU Radio is distributed in the hope that it will be useful, # but WITHOUT ANY WARRANTY; without even the implied warranty of # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the # GNU General Public License for more details. -# +# # You should have received a copy of the GNU General Public License # along with GNU Radio; see the file COPYING. If not, write to # the Free Software Foundation, Inc., 51 Franklin Street, # Boston, MA 02110-1301, USA. -# +# from gnuradio import gr, audio, blks2, uhd from gnuradio.eng_option import eng_option @@ -58,13 +58,13 @@ class my_top_block (stdgui2.std_top_block): if len(args) != 0: parser.print_help() sys.exit(1) - + if options.freq < 1e6: options.freq *= 1e6 - + self.frame = frame self.panel = panel - + self.state = "FREQ" self.freq = 0 self.freq_step = 25e3 @@ -72,7 +72,7 @@ class my_top_block (stdgui2.std_top_block): self.rxpath = receive_path(options.args, options.spec, options.antenna, options.gain, options.audio_output) self.connect(self.rxpath) - + self._build_gui(vbox, options.no_gui) # set initial values @@ -119,7 +119,7 @@ class my_top_block (stdgui2.std_top_block): y_per_div=20) self.connect (self.rxpath.resamp, rx_fft) vbox.Add (rx_fft.win, 4, wx.EXPAND) - + if 1 and not(no_gui): post_deemph_fft = fftsink2.fft_sink_f(self.panel, title="Post Deemph", @@ -132,7 +132,7 @@ class my_top_block (stdgui2.std_top_block): if 0: post_filt_fft = fftsink2.fft_sink_f(self.panel, - title="Post Filter", + title="Post Filter", fft_size=512, sample_rate=audio_rate, y_per_div=10, @@ -206,7 +206,7 @@ class my_top_block (stdgui2.std_top_block): elif self.rot <=-3: self.set_volume(self.rxpath.volume - step) self.rot += 3 - + def on_button (self, event): if event.value == 0: # button up return @@ -216,7 +216,7 @@ class my_top_block (stdgui2.std_top_block): else: self.state = "FREQ" self.update_status_bar () - + def set_squelch(self, threshold_in_db): self.rxpath.set_squelch(threshold_in_db) @@ -226,7 +226,7 @@ class my_top_block (stdgui2.std_top_block): self.rxpath.set_volume(vol) self.myform['volume'].set_value(self.rxpath.volume) self.update_status_bar () - + def set_freq(self, target_freq): r = self.rxpath.set_freq(target_freq) if r: @@ -252,7 +252,7 @@ class my_top_block (stdgui2.std_top_block): def volume_range(self): return (-20.0, 0.0, 0.5) - + #//////////////////////////////////////////////////////////////////////// # Receive Path @@ -289,7 +289,7 @@ class receive_path(gr.hier_block2): nfilts*dev_rate, # sampling rate 8e3, # low pass cutoff freq 2e3, # width of trans. band - gr.firdes.WIN_HANN) # filter type + gr.firdes.WIN_HANN) # filter type rrate = self.quad_rate / dev_rate self.resamp = blks2.pfb_arb_resampler_ccf(rrate, chan_coeffs, nfilts) @@ -306,7 +306,7 @@ class receive_path(gr.hier_block2): # sound card as final sink audio_sink = audio.sink (int(self.audio_rate), audio_output) - + # now wire it all together if USE_SIMPLE_SQUELCH: self.connect (self.u, self.resamp, self.squelch, self.fmrx, @@ -338,12 +338,12 @@ class receive_path(gr.hier_block2): def _update_audio_gain(self): self._audio_gain.set_k(10**(self.volume/10)) - + def squelch_range(self): r = self.squelch.squelch_range() #print "squelch_range: ", r return r - + def set_squelch(self, threshold): #print "SQL =", threshold self.squelch.set_threshold(threshold) |