diff options
Diffstat (limited to 'gr-uhd/examples/python/usrp_nbfm_ptt.py')
| -rwxr-xr-x | gr-uhd/examples/python/usrp_nbfm_ptt.py | 42 |
1 files changed, 21 insertions, 21 deletions
diff --git a/gr-uhd/examples/python/usrp_nbfm_ptt.py b/gr-uhd/examples/python/usrp_nbfm_ptt.py index 075604af3..8d26e656e 100755 --- a/gr-uhd/examples/python/usrp_nbfm_ptt.py +++ b/gr-uhd/examples/python/usrp_nbfm_ptt.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. -# +# import math import sys @@ -45,7 +45,7 @@ class ptt_block(stdgui2.std_top_block): self.frame = frame self.space_bar_pressed = False - + parser = OptionParser (option_class=eng_option) parser.add_option("-a", "--args", type="string", default="", help="UHD device address args [default=%default]") @@ -72,7 +72,7 @@ class ptt_block(stdgui2.std_top_block): if options.freq < 1e6: options.freq *= 1e6 - + self.txpath = transmit_path(options.args, options.spec, options.antenna, options.tx_gain, options.audio_input) @@ -103,7 +103,7 @@ class ptt_block(stdgui2.std_top_block): def set_rx_gain(self, gain): self.myform['rx_gain'].set_value(gain) # update displayed value self.rxpath.set_gain(gain) - + def set_tx_gain(self, gain): self.txpath.set_gain(gain) @@ -129,9 +129,9 @@ class ptt_block(stdgui2.std_top_block): def _form_set_freq(kv): return self.set_freq(kv['freq']) - + self.panel = panel - + # FIXME This REALLY needs to be replaced with a hand-crafted button # that sends both button down and button up events hbox = wx.BoxSizer(wx.HORIZONTAL) @@ -203,7 +203,7 @@ class ptt_block(stdgui2.std_top_block): form.quantized_slider_field(parent=self.panel, sizer=hbox, label="Squelch", weight=3, range=self.rxpath.squelch_range(), callback=self.set_squelch) - + g = self.rxpath.u.get_gain_range() hbox.Add((5,0), 0) myform['rx_gain'] = \ @@ -221,7 +221,7 @@ class ptt_block(stdgui2.std_top_block): # FIXME figure out how to have this be a subpanel that is always # created, but has its visibility controlled by foo.Show(True/False) - + #if not(self.show_debug_info): # return @@ -268,7 +268,7 @@ class ptt_block(stdgui2.std_top_block): # if we lose the keyboard focus, turn off the transmitter self.space_bar_pressed = False self.set_transmit(False) - + # //////////////////////////////////////////////////////////////////////// # Transmit Path @@ -279,7 +279,7 @@ class transmit_path(gr.hier_block2): gr.hier_block2.__init__(self, "transmit_path", gr.io_signature(0, 0, 0), # Input signature gr.io_signature(0, 0, 0)) # Output signature - + self.u = uhd.usrp_sink(device_addr=args, stream_args=uhd.stream_args('fc32')) # Set the subdevice spec @@ -306,13 +306,13 @@ class transmit_path(gr.hier_block2): self.audio_rate, # sampling rate 3800, # low pass cutoff freq 300, # width of trans. band - gr.firdes.WIN_HANN) # filter type + gr.firdes.WIN_HANN) # filter type hpf = gr.firdes.high_pass (1, # gain self.audio_rate, # sampling rate 325, # low pass cutoff freq 50, # width of trans. band - gr.firdes.WIN_HANN) # filter type + gr.firdes.WIN_HANN) # filter type audio_taps = convolve(array(lpf),array(hpf)) self.audio_filt = gr.fir_filter_fff(1,audio_taps) @@ -391,7 +391,7 @@ class receive_path(gr.hier_block2): nfilts*dev_rate, # sampling rate 13e3, # low pass cutoff freq 4e3, # 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) @@ -407,7 +407,7 @@ 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 self.connect (self.u, self.resamp, self.fmrx, self.squelch, self._audio_gain, audio_sink) @@ -423,7 +423,7 @@ class receive_path(gr.hier_block2): self.set_volume((v[0]+v[1])/2) s = self.squelch_range() self.set_squelch((s[0]+s[1])/2) - + # Set the subdevice spec if(spec): self.u.set_subdev_spec(spec, 0) @@ -452,14 +452,14 @@ class receive_path(gr.hier_block2): def squelch_range(self): return self.squelch.squelch_range() - + def set_squelch(self, threshold): print "SQL =", threshold self.squelch.set_threshold(threshold) def threshold(self): return self.squelch.threshold() - + def set_freq(self, target_freq): """ Set the center frequency we're interested in. |