def __init__(self, options, queue):
gr.top_block.__init__(self)
if options.filename is not None:
self.fs = gr.file_source(gr.sizeof_gr_complex, options.filename)
self.rate = options.rate
else:
self.u = uhd.usrp_source(options.addr,
io_type=uhd.io_type.COMPLEX_FLOAT32,
num_channels=1)
if options.subdev is not None:
self.u.set_subdev_spec(options.subdev, 0)
self.u.set_samp_rate(options.rate)
self.rate = self.u.get_samp_rate()
# Set the antenna
if(options.antenna):
self.u.set_antenna(options.antenna, 0)
self.centerfreq = options.centerfreq
print "Tuning to: %fMHz" % (self.centerfreq - options.error)
if not(self.tune(options.centerfreq - options.error)):
print "Failed to set initial frequency"
if options.gain is None: #set to halfway
g = self.u.get_gain_range()
options.gain = (g.start()+g.stop()) / 2.0
print "Setting gain to %i" % options.gain
self.u.set_gain(options.gain)
self.u.set_bandwidth(options.bandwidth)
print "Samples per second is %i" % self.rate
self._syms_per_sec = 3600;
options.samples_per_second = self.rate
options.syms_per_sec = self._syms_per_sec
options.gain_mu = 0.01
options.mu=0.5
options.omega_relative_limit = 0.3
options.syms_per_sec = self._syms_per_sec
options.offset = options.centerfreq - options.freq
print "Control channel offset: %f" % options.offset
self.demod = fsk_demod(options)
self.start_correlator = gr.correlate_access_code_tag_bb("10101100",
0,
"smartnet_preamble") #should mark start of packet
self.smartnet_deinterleave = smartnet.deinterleave()
self.smartnet_crc = smartnet.crc(queue)
if options.filename is None:
self.connect(self.u, self.demod)
else:
self.connect(self.fs, self.demod)
self.connect(self.demod, self.start_correlator, self.smartnet_deinterleave, self.smartnet_crc)
#hook up the audio patch
if options.audio:
self.audiorate = 48000
self.audiotaps = gr.firdes.low_pass(1, self.rate, 8000, 2000, gr.firdes.WIN_HANN)
self.prefilter_decim = int(self.rate / self.audiorate) #might have to use a rational resampler for audio
print "Prefilter decimation: %i" % self.prefilter_decim
self.audio_prefilter = gr.freq_xlating_fir_filter_ccf(self.prefilter_decim, #decimation
self.audiotaps, #taps
0, #freq offset
self.rate) #sampling rate
#on a trunked network where you know you will have good signal, a carrier power squelch works well. real FM receviers use a noise squelch, where
#the received audio is high-passed above the cutoff and then fed to a reverse squelch. If the power is then BELOW a threshold, open the squelch.
self.squelch = gr.pwr_squelch_cc(options.squelch, #squelch point
alpha = 0.1, #wat
ramp = 10, #wat
gate = False)
self.audiodemod = blks2.fm_demod_cf(self.rate/self.prefilter_decim, #rate
1, #audio decimation
4000, #deviation
3000, #audio passband
4000, #audio stopband
1, #gain
75e-6) #deemphasis constant
#the filtering removes FSK data woobling from the subaudible channel (might be able to combine w/lpf above)
self.audiofilttaps = gr.firdes.high_pass(1, self.audiorate, 300, 50, gr.firdes.WIN_HANN)
self.audiofilt = gr.fir_filter_fff(1, self.audiofilttaps)
self.audiogain = gr.multiply_const_ff(options.volume)
self.audiosink = audio.sink (self.audiorate, "")
# self.audiosink = gr.wavfile_sink("test.wav", 1, self.audiorate, 8)
self.mute()
if options.filename is None:
self.connect(self.u, self.audio_prefilter)
else:
self.connect(self.fs, self.audio_prefilter)
# self.connect(self.audio_prefilter, self.squelch, self.audiodemod, self.audiofilt, self.audiogain, self.audioresamp, self.audiosink)
self.connect(self.audio_prefilter, self.squelch, self.audiodemod, self.audiofilt, self.audiogain, self.audiosink)
def __init__(self, options, queue):
gr.top_block.__init__(self)
self.u = uhd.usrp_source(options.addr,
io_type=uhd.io_type.COMPLEX_FLOAT32,
num_channels=1)
if options.subdev is not None:
self.u.set_subdev_spec(options.subdev, 0)
self.u.set_samp_rate(options.rate)
self.rate = self.u.get_samp_rate()
# Set the antenna
if(options.antenna):
self.u.set_antenna(options.antenna, 0)
self.centerfreq = options.centerfreq
print "Tuning to: %fMHz" % (self.centerfreq - options.error)
if not(self.tune(options.centerfreq - options.error)):
print "Failed to set initial frequency"
if options.gain is None: #set to halfway
g = self.u.get_gain_range()
options.gain = (g.start()+g.stop()) / 2.0
print "Setting gain to %i" % options.gain
self.u.set_gain(options.gain)
self.u.set_bandwidth(options.bandwidth)
print "Samples per second is %i" % self.rate
self._syms_per_sec = 3600;
options.audiorate = 11025
options.rate = self.rate
options.samples_per_second = self.rate #yeah i know it's on the list
options.syms_per_sec = self._syms_per_sec
options.gain_mu = 0.01
options.mu=0.5
options.omega_relative_limit = 0.3
options.syms_per_sec = self._syms_per_sec
options.offset = options.centerfreq - options.freq
print "Control channel offset: %f" % options.offset
self.demod = fsk_demod(options)
self.start_correlator = digital.correlate_access_code_bb("10101100",0) #should mark start of packet
self.smartnet_sync = smartnet.sync()
self.smartnet_deinterleave = smartnet.deinterleave()
self.smartnet_parity = smartnet.parity()
self.smartnet_crc = smartnet.crc()
self.smartnet_packetize = smartnet.packetize()
self.parse = smartnet.parse(queue) #packet-based. this simply posts lightly-formatted messages to the queue.
self.connect(self.u, self.demod)
self.connect(self.demod, self.start_correlator, self.smartnet_sync, self.smartnet_deinterleave, self.smartnet_parity, self.smartnet_crc, self.smartnet_packetize, self.parse)
def __init__(self, options, queue):
gr.top_block.__init__(self)
self.u = usrp.source_c()
self.u.set_mux(usrp.determine_rx_mux_value(self.u, options.rx_subdev_spec))
self.subdev = usrp.selected_subdev(self.u, options.rx_subdev_spec)
print "Using RX d'board %s" % self.subdev.side_and_name()
self.u.set_decim_rate(options.decim)
self.centerfreq = options.centerfreq
print "Tuning to: %fMHz" % (self.centerfreq - options.error)
if not(self.tune(options.centerfreq - options.error)):
print "Failed to set initial frequency"
if options.gain is None: #set to halfway
g = self.subdev.gain_range()
options.gain = (g[0]+g[1]) / 2.0
print "Setting gain to %i" % options.gain
self.subdev.set_gain(options.gain)
if self.subdev.name() == "DBS Rx":
self.subdev.set_bw(options.bandwidth) #only for DBSRX
print "Setting DBS RX bandwidth to %fMHz" % float(options.bandwidth / 1e6)
self.rate = self.u.adc_rate() / options.decim
print "Samples per second is %i" % self.rate
self._syms_per_sec = 3600;
options.audiorate = 11025
options.rate = self.rate
options.samples_per_second = self.rate #yeah i know it's on the list
options.syms_per_sec = self._syms_per_sec
options.gain_mu = 0.01
options.mu=0.5
options.omega_relative_limit = 0.3
options.syms_per_sec = self._syms_per_sec
options.offset = options.centerfreq - options.freq
print "Control channel offset: %f" % options.offset
self.demod = fsk_demod(options)
self.start_correlator = gr.correlate_access_code_bb("10101100",0) #should mark start of packet
self.smartnet_sync = smartnet.sync()
self.smartnet_deinterleave = smartnet.deinterleave()
self.smartnet_parity = smartnet.parity()
self.smartnet_crc = smartnet.crc()
self.smartnet_packetize = smartnet.packetize()
self.parse = smartnet.parse(queue) #packet-based. this simply posts lightly-formatted messages to the queue.
self.connect(self.u, self.demod)
self.connect(self.demod, self.start_correlator, self.smartnet_sync, self.smartnet_deinterleave, self.smartnet_parity, self.smartnet_crc, self.smartnet_packetize, self.parse)
def __init__(self, options, queue):
gr.top_block.__init__(self)
self.u = usrp.source_c()
self.u.set_mux(
usrp.determine_rx_mux_value(self.u, options.rx_subdev_spec))
self.subdev = usrp.selected_subdev(self.u, options.rx_subdev_spec)
print "Using RX d'board %s" % self.subdev.side_and_name()
self.u.set_decim_rate(options.decim)
self.centerfreq = options.centerfreq
print "Tuning to: %fMHz" % (self.centerfreq - options.error)
if not (self.tune(options.centerfreq - options.error)):
print "Failed to set initial frequency"
if options.gain is None: #set to halfway
g = self.subdev.gain_range()
options.gain = (g[0] + g[1]) / 2.0
print "Setting gain to %i" % options.gain
self.subdev.set_gain(options.gain)
if self.subdev.name() == "DBS Rx":
self.subdev.set_bw(options.bandwidth) #only for DBSRX
print "Setting DBS RX bandwidth to %fMHz" % float(
options.bandwidth / 1e6)
self.rate = self.u.adc_rate() / options.decim
print "Samples per second is %i" % self.rate
self._syms_per_sec = 3600
options.audiorate = 11025
options.rate = self.rate
options.samples_per_second = self.rate #yeah i know it's on the list
options.syms_per_sec = self._syms_per_sec
options.gain_mu = 0.01
options.mu = 0.5
options.omega_relative_limit = 0.3
options.syms_per_sec = self._syms_per_sec
options.offset = options.centerfreq - options.freq
print "Control channel offset: %f" % options.offset
self.demod = fsk_demod(options)
self.start_correlator = gr.correlate_access_code_bb(
"10101100", 0) #should mark start of packet
self.smartnet_sync = smartnet.sync()
self.smartnet_deinterleave = smartnet.deinterleave()
self.smartnet_parity = smartnet.parity()
self.smartnet_crc = smartnet.crc()
self.smartnet_packetize = smartnet.packetize()
self.parse = smartnet.parse(
queue
) #packet-based. this simply posts lightly-formatted messages to the queue.
self.connect(self.u, self.demod)
self.connect(self.demod, self.start_correlator, self.smartnet_sync,
self.smartnet_deinterleave, self.smartnet_parity,
self.smartnet_crc, self.smartnet_packetize, self.parse)
def __init__(self, options, queue):
gr.top_block.__init__(self)
if options.filename is not None:
self.fs = gr.file_source(gr.sizeof_gr_complex, options.filename)
self.rate = options.rate
else:
self.u = uhd.usrp_source(options.addr,
io_type=uhd.io_type.COMPLEX_FLOAT32,
num_channels=1)
if options.subdev is not None:
self.u.set_subdev_spec(options.subdev, 0)
self.u.set_samp_rate(options.rate)
self.rate = self.u.get_samp_rate()
# Set the antenna
if (options.antenna):
self.u.set_antenna(options.antenna, 0)
self.centerfreq = options.centerfreq
print "Tuning to: %fMHz" % (self.centerfreq - options.error)
if not (self.tune(options.centerfreq - options.error)):
print "Failed to set initial frequency"
if options.gain is None: #set to halfway
g = self.u.get_gain_range()
options.gain = (g.start() + g.stop()) / 2.0
print "Setting gain to %i" % options.gain
self.u.set_gain(options.gain)
self.u.set_bandwidth(options.bandwidth)
print "Samples per second is %i" % self.rate
self._syms_per_sec = 3600
options.samples_per_second = self.rate
options.syms_per_sec = self._syms_per_sec
options.gain_mu = 0.01
options.mu = 0.5
options.omega_relative_limit = 0.3
options.syms_per_sec = self._syms_per_sec
options.offset = options.centerfreq - options.freq
print "Control channel offset: %f" % options.offset
self.demod = fsk_demod(options)
self.start_correlator = gr.correlate_access_code_tag_bb(
"10101100", 0, "smartnet_preamble") #should mark start of packet
self.smartnet_deinterleave = smartnet.deinterleave()
self.smartnet_crc = smartnet.crc(queue)
if options.filename is None:
self.connect(self.u, self.demod)
else:
self.connect(self.fs, self.demod)
self.connect(self.demod, self.start_correlator,
self.smartnet_deinterleave, self.smartnet_crc)
#hook up the audio patch
if options.audio:
self.audiorate = 48000
self.audiotaps = gr.firdes.low_pass(1, self.rate, 8000, 2000,
gr.firdes.WIN_HANN)
self.prefilter_decim = int(
self.rate / self.audiorate
) #might have to use a rational resampler for audio
print "Prefilter decimation: %i" % self.prefilter_decim
self.audio_prefilter = gr.freq_xlating_fir_filter_ccf(
self.prefilter_decim, #decimation
self.audiotaps, #taps
0, #freq offset
self.rate) #sampling rate
#on a trunked network where you know you will have good signal, a carrier power squelch works well. real FM receviers use a noise squelch, where
#the received audio is high-passed above the cutoff and then fed to a reverse squelch. If the power is then BELOW a threshold, open the squelch.
self.squelch = gr.pwr_squelch_cc(
options.squelch, #squelch point
alpha=0.1, #wat
ramp=10, #wat
gate=False)
self.audiodemod = blks2.fm_demod_cf(
self.rate / self.prefilter_decim, #rate
1, #audio decimation
4000, #deviation
3000, #audio passband
4000, #audio stopband
1, #gain
75e-6) #deemphasis constant
#the filtering removes FSK data woobling from the subaudible channel (might be able to combine w/lpf above)
self.audiofilttaps = gr.firdes.high_pass(1, self.audiorate, 300,
50, gr.firdes.WIN_HANN)
self.audiofilt = gr.fir_filter_fff(1, self.audiofilttaps)
self.audiogain = gr.multiply_const_ff(options.volume)
self.audiosink = audio.sink(self.audiorate, "")
# self.audiosink = gr.wavfile_sink("test.wav", 1, self.audiorate, 8)
self.mute()
if options.filename is None:
self.connect(self.u, self.audio_prefilter)
else:
self.connect(self.fs, self.audio_prefilter)
# self.connect(self.audio_prefilter, self.squelch, self.audiodemod, self.audiofilt, self.audiogain, self.audioresamp, self.audiosink)
self.connect(self.audio_prefilter, self.squelch, self.audiodemod,
self.audiofilt, self.audiogain, self.audiosink)
def __init__(self, options, queue):
gr.top_block.__init__(self)
if options.filename is not None:
self.fs = gr.file_source(gr.sizeof_gr_complex, options.filename)
self.rate = options.rate
else:
#self.u = uhd.usrp_source(options.addr,
# io_type=uhd.io_type.COMPLEX_FLOAT32,
# num_channels=1)
self.rtl = osmosdr.source_c(args="nchan=" + str(1) + " " + "")
self.rtl.set_sample_rate(options.rate)
self.rate = options.rate #self.rtl.get_samp_rate()
self.rtl.set_center_freq(options.centerfreq, 0)
#self.rtl.set_freq_corr(options.ppm, 0)
self.centerfreq = options.centerfreq
print "Tuning to: %fMHz" % (self.centerfreq - options.error)
if not (self.tune(options.centerfreq - options.error)):
print "Failed to set initial frequency"
if options.gain is None:
options.gain = 10
if options.bbgain is None:
options.bbgain = 25
if options.ifgain is None:
options.ifgain = 25
print "Setting RF gain to %i" % options.gain
print "Setting BB gain to %i" % options.bbgain
print "Setting IF gain to %i" % options.ifgain
self.rtl.set_gain(options.gain, 0)
self.rtl.set_if_gain(options.ifgain, 0)
self.rtl.set_bb_gain(options.bbgain, 0)
#self.rtl.set_gain_mode(1,0)
print "Samples per second is %i" % self.rate
self._syms_per_sec = 3600
options.samples_per_second = self.rate
options.syms_per_sec = self._syms_per_sec
options.gain_mu = 0.01
options.mu = 0.5
options.omega_relative_limit = 0.3
options.syms_per_sec = self._syms_per_sec
options.offset = options.centerfreq - options.freq
print "Control channel offset: %f" % options.offset
self.offset = gr.sig_source_c(self.rate, gr.GR_SIN_WAVE,
options.offset, 1.0, 0.0)
# for some reason using the xlating filter to do the offset makes thing barf with the HackRF, Multiply CC seems to work
options.offset = 0
self.mixer = gr.multiply_cc()
self.demod = fsk_demod(options)
self.start_correlator = gr.correlate_access_code_tag_bb(
"10101100", 0, "smartnet_preamble") #should mark start of packet
self.smartnet_deinterleave = smartnet.deinterleave()
self.smartnet_crc = smartnet.crc(queue)
#rerate = float(self.rate / float(first_decim)) / float(7200)
#print "resampling factor: %f\n" % rerate
#if rerate.is_integer():
# print "using pfb decimator\n"
# self.resamp = blks2.pfb_decimator_ccf(int(rerate))
#else:
# print "using pfb resampler\n"
# self.resamp = blks2.pfb_arb_resampler_ccf(1 / rerate)
if options.filename is None:
#self.connect(self.u, self.demod)
self.connect(self.rtl, (self.mixer, 0))
self.connect(self.offset, (self.mixer, 1))
self.connect(self.mixer, self.demod)
# self.connect(self.rtl, self.demod)
else:
self.connect(self.fs, self.demod)
self.connect(self.demod, self.start_correlator,
self.smartnet_deinterleave, self.smartnet_crc)
#hook up the audio patch
if options.audio:
self.audiorate = 48000
self.audiotaps = gr.firdes.low_pass(1, self.rate, 8000, 2000,
gr.firdes.WIN_HANN)
self.prefilter_decim = int(
self.rate / self.audiorate
) #might have to use a rational resampler for audio
print "Prefilter decimation: %i" % self.prefilter_decim
self.audio_prefilter = gr.freq_xlating_fir_filter_ccf(
self.prefilter_decim, #decimation
self.audiotaps, #taps
0, #freq offset
self.rate) #sampling rate
#on a trunked network where you know you will have good signal, a carrier power squelch works well. real FM receviers use a noise squelch, where
#the received audio is high-passed above the cutoff and then fed to a reverse squelch. If the power is then BELOW a threshold, open the squelch.
#self.squelch = gr.pwr_squelch_cc(options.squelch, #squelch point
# alpha = 0.1, #wat
# ramp = 10, #wat
# gate = False)
self.audiodemod = blks2.fm_demod_cf(
self.rate / self.prefilter_decim, #rate
1, #audio decimation
4000, #deviation
3000, #audio passband
4000, #audio stopband
1, #gain
75e-6) #deemphasis constant
#the filtering removes FSK data woobling from the subaudible channel (might be able to combine w/lpf above)
self.audiofilttaps = gr.firdes.high_pass(1, self.audiorate, 300,
50, gr.firdes.WIN_HANN)
self.audiofilt = gr.fir_filter_fff(1, self.audiofilttaps)
self.audiogain = gr.multiply_const_ff(options.volume)
self.audiosink = audio.sink(self.audiorate, "")
# self.audiosink = gr.wavfile_sink("test.wav", 1, self.audiorate, 8)
#self.mute()
if options.filename is None:
#self.connect(self.u, self.audio_prefilter)
self.connect(self.rtl, self.audio_prefilter)
else:
self.connect(self.fs, self.audio_prefilter)
# self.connect(self.audio_prefilter, self.squelch, self.audiodemod, self.audiofilt, self.audiogain, self.audioresamp, self.audiosink)
# real self.connect(self.audio_prefilter, self.squelch, self.audiodemod, self.audiofilt, self.audiogain, self.audiosink)
self.connect(self.audio_prefilter, self.audiodemod, self.audiofilt,
self.audiogain, self.audiosink)
def __init__(self, options, queue):
gr.top_block.__init__(self)
if options.filename is not None:
self.fs = gr.file_source(gr.sizeof_gr_complex, options.filename)
self.rate = options.rate
else:
#self.u = uhd.usrp_source(options.addr,
# io_type=uhd.io_type.COMPLEX_FLOAT32,
# num_channels=1)
self.rtl = osmosdr.source_c( args="nchan=" + str(1) + " " + "" )
self.rtl.set_sample_rate(options.rate)
self.rate = options.rate #self.rtl.get_samp_rate()
self.rtl.set_center_freq(options.centerfreq, 0)
#self.rtl.set_freq_corr(options.ppm, 0)
self.centerfreq = options.centerfreq
print "Tuning to: %fMHz" % (self.centerfreq - options.error)
if not(self.tune(options.centerfreq - options.error)):
print "Failed to set initial frequency"
if options.gain is None:
options.gain = 10
if options.bbgain is None:
options.bbgain = 25
if options.ifgain is None:
options.ifgain = 25
print "Setting RF gain to %i" % options.gain
print "Setting BB gain to %i" % options.bbgain
print "Setting IF gain to %i" % options.ifgain
self.rtl.set_gain(options.gain, 0)
self.rtl.set_if_gain(options.ifgain,0)
self.rtl.set_bb_gain(options.bbgain,0)
#self.rtl.set_gain_mode(1,0)
print "Samples per second is %i" % self.rate
self._syms_per_sec = 3600;
options.samples_per_second = self.rate
options.syms_per_sec = self._syms_per_sec
options.gain_mu = 0.01
options.mu=0.5
options.omega_relative_limit = 0.3
options.syms_per_sec = self._syms_per_sec
options.offset = options.centerfreq - options.freq
print "Control channel offset: %f" % options.offset
self.offset = gr.sig_source_c(self.rate, gr.GR_SIN_WAVE,
options.offset, 1.0, 0.0)
# for some reason using the xlating filter to do the offset makes thing barf with the HackRF, Multiply CC seems to work
options.offset = 0
self.mixer = gr.multiply_cc()
self.demod = fsk_demod(options)
self.start_correlator = gr.correlate_access_code_tag_bb("10101100",
0,
"smartnet_preamble") #should mark start of packet
self.smartnet_deinterleave = smartnet.deinterleave()
self.smartnet_crc = smartnet.crc(queue)
#rerate = float(self.rate / float(first_decim)) / float(7200)
#print "resampling factor: %f\n" % rerate
#if rerate.is_integer():
# print "using pfb decimator\n"
# self.resamp = blks2.pfb_decimator_ccf(int(rerate))
#else:
# print "using pfb resampler\n"
# self.resamp = blks2.pfb_arb_resampler_ccf(1 / rerate)
if options.filename is None:
#self.connect(self.u, self.demod)
self.connect(self.rtl, (self.mixer, 0))
self.connect(self.offset, (self.mixer, 1))
self.connect(self.mixer, self.demod)
# self.connect(self.rtl, self.demod)
else:
self.connect(self.fs, self.demod)
self.connect(self.demod, self.start_correlator, self.smartnet_deinterleave, self.smartnet_crc)
#hook up the audio patch
if options.audio:
self.audiorate = 48000
self.audiotaps = gr.firdes.low_pass(1, self.rate, 8000, 2000, gr.firdes.WIN_HANN)
self.prefilter_decim = int(self.rate / self.audiorate) #might have to use a rational resampler for audio
print "Prefilter decimation: %i" % self.prefilter_decim
self.audio_prefilter = gr.freq_xlating_fir_filter_ccf(self.prefilter_decim, #decimation
self.audiotaps, #taps
0, #freq offset
self.rate) #sampling rate
#on a trunked network where you know you will have good signal, a carrier power squelch works well. real FM receviers use a noise squelch, where
#the received audio is high-passed above the cutoff and then fed to a reverse squelch. If the power is then BELOW a threshold, open the squelch.
#self.squelch = gr.pwr_squelch_cc(options.squelch, #squelch point
# alpha = 0.1, #wat
# ramp = 10, #wat
# gate = False)
self.audiodemod = blks2.fm_demod_cf(self.rate/self.prefilter_decim, #rate
1, #audio decimation
4000, #deviation
3000, #audio passband
4000, #audio stopband
1, #gain
75e-6) #deemphasis constant
#the filtering removes FSK data woobling from the subaudible channel (might be able to combine w/lpf above)
self.audiofilttaps = gr.firdes.high_pass(1, self.audiorate, 300, 50, gr.firdes.WIN_HANN)
self.audiofilt = gr.fir_filter_fff(1, self.audiofilttaps)
self.audiogain = gr.multiply_const_ff(options.volume)
self.audiosink = audio.sink (self.audiorate, "")
# self.audiosink = gr.wavfile_sink("test.wav", 1, self.audiorate, 8)
#self.mute()
if options.filename is None:
#self.connect(self.u, self.audio_prefilter)
self.connect(self.rtl, self.audio_prefilter)
else:
self.connect(self.fs, self.audio_prefilter)
# self.connect(self.audio_prefilter, self.squelch, self.audiodemod, self.audiofilt, self.audiogain, self.audioresamp, self.audiosink)
# real self.connect(self.audio_prefilter, self.squelch, self.audiodemod, self.audiofilt, self.audiogain, self.audiosink)
self.connect(self.audio_prefilter, self.audiodemod, self.audiofilt, self.audiogain, self.audiosink)
def __init__(self, options, queue):
gr.top_block.__init__(self)
self.rtl = osmosdr.source_c( args="nchan=" + str(1) + " " + "" )
self.rtl.set_sample_rate(options.rate)
self.rtl.set_center_freq(options.centerfreq, 0)
self.rtl.set_freq_corr(options.ppm, 0)
self.rtl.set_gain_mode(1, 0)
self.centerfreq = options.centerfreq
print "Tuning to: %fMHz" % (self.centerfreq - options.error)
if not(self.tune(options.centerfreq - options.error)):
print "Failed to set initial frequency"
if options.gain is None:
options.gain = 10
if options.bbgain is None:
options.bbgain = 25
if options.ifgain is None:
options.ifgain = 25
print "Setting RF gain to %i" % options.gain
print "Setting BB gain to %i" % options.bbgain
print "Setting IF gain to %i" % options.ifgain
self.rtl.set_gain(options.gain, 0)
self.rtl.set_if_gain(options.ifgain,0)
self.rtl.set_bb_gain(options.bbgain,0)
self.rate = options.rate
print "Samples per second is %i" % self.rate
self._syms_per_sec = 3600;
options.audiorate = 11025
options.rate = self.rate
options.samples_per_second = self.rate #yeah i know it's on the list
options.syms_per_sec = self._syms_per_sec
options.gain_mu = 0.01
options.mu=0.5
options.omega_relative_limit = 0.3
options.syms_per_sec = self._syms_per_sec
options.offset = options.centerfreq - options.freq
print "Control channel offset: %f" % options.offset
self.offset = gr.sig_source_c(self.rate, gr.GR_SIN_WAVE,
options.offset, 1.0, 0.0)
# for some reason using the xlating filter to do the offset makes thing barf with the HackRF, Multiply CC seems to work
options.offset = 0
self.mixer = gr.multiply_cc()
self.demod = fsk_demod(options)
self.start_correlator = gr.correlate_access_code_tag_bb("10101100",
0,
"smartnet_preamble") #should mark start of packet
self.smartnet_deinterleave = smartnet.deinterleave()
self.smartnet_crc = smartnet.crc(queue)
self.connect(self.rtl, (self.mixer, 0))
self.connect(self.offset, (self.mixer, 1))
self.connect(self.mixer, self.demod)
self.connect(self.demod, self.start_correlator, self.smartnet_deinterleave, self.smartnet_crc)
def __init__(self, options, args, queue):
gr.top_block.__init__(self)
self.options = options
self.args = args
self.rate = int(options.rate)
if options.filename is None and options.udp is None and not options.rtlsdr:
#UHD source by default
from gnuradio import uhd
self.u = uhd.single_usrp_source(options.args, uhd.io_type_t.COMPLEX_FLOAT32, 1)
time_spec = uhd.time_spec(0.0)
self.u.set_time_now(time_spec)
#if(options.rx_subdev_spec is None):
# options.rx_subdev_spec = ""
#self.u.set_subdev_spec(options.rx_subdev_spec)
if not options.antenna is None:
self.u.set_antenna(options.antenna)
self.u.set_samp_rate(rate)
self.rate = int(self.u.get_samp_rate()) #retrieve actual
if options.gain is None: #set to halfway
g = self.u.get_gain_range()
options.gain = (g.start()+g.stop()) / 2.0
if not(self.tune(options.freq)):
print "Failed to set initial frequency"
print "Setting gain to %i" % options.gain
self.u.set_gain(options.gain)
print "Gain is %i" % self.u.get_gain()
elif options.rtlsdr: #RTLSDR dongle
import osmosdr
self.u = osmosdr.source_c(options.args)
self.u.set_sample_rate(2.4e6) #fixed for RTL dongles
if not self.u.set_center_freq(options.centerfreq - options.error):
print "Failed to set initial frequency"
self.u.set_gain_mode(0) #manual gain mode
if options.gain is None:
options.gain = 25#34
self.u.set_gain(options.gain)
print "Gain is %i" % self.u.get_gain()
use_resampler = True
self.rate=2.4e6
else:
if options.filename is not None:
self.u = gr.file_source(gr.sizeof_gr_complex, options.filename)
elif options.udp is not None:
self.u = gr.udp_source(gr.sizeof_gr_complex, "localhost", options.udp)
else:
raise Exception("No valid source selected")
print "Samples per second is %i" % self.rate
self._syms_per_sec = 3600;
options.audiorate = 11025
options.rate = self.rate
options.samples_per_second = self.rate #yeah i know it's on the list
options.syms_per_sec = self._syms_per_sec
options.gain_mu = 0.01
options.mu=0.5
options.omega_relative_limit = 0.3
options.syms_per_sec = self._syms_per_sec
options.offset = options.centerfreq - options.freq
print "Control channel offset: %f" % options.offset
self.demod = fsk_demod(options)
self.start_correlator = gr.correlate_access_code_tag_bb("10101100",0,"smartnet_preamble") #should mark start of packet #digital.
#self.start_correlator = digital.correlate_access_code_bb("10101100",0) #should mark start of packet #digital.
# self.smartnet_sync = smartnet.sync()
self.smartnet_deinterleave = smartnet.deinterleave()
# self.smartnet_parity = smartnet.parity()
self.smartnet_crc = smartnet.crc(queue)
# self.smartnet_packetize = smartnet.packetize()
# self.parse = smartnet.parse(queue) #packet-based. this simply posts lightly-formatted messages to the queue.
self.connect(self.u, self.demod)
#self.smartnet_sync, self.smartnet_parity,
self.connect(self.demod, self.start_correlator, self.smartnet_deinterleave, self.smartnet_crc)#, self.smartnet_packetize, self.parse)
