diff options
| author | Clayton Smith <argilo@gmail.com> | 2019-10-01 08:45:31 -0400 |
|---|---|---|
| committer | Marcus Müller <mmueller@gnuradio.org> | 2019-10-19 23:20:33 +0200 |
| commit | ec9eacc862817c7d5973e51f950800dfff814684 (patch) | |
| tree | 430f8263141441c60185772f8f23c1cba1285093 | |
| parent | 55c55fe3e17d556484ed9139e8e941a0da00f9c4 (diff) | |
Replace tabs with spaces
| -rwxr-xr-x | gr-uhd/apps/uhd_rx_nogui | 36 |
1 files changed, 18 insertions, 18 deletions
diff --git a/gr-uhd/apps/uhd_rx_nogui b/gr-uhd/apps/uhd_rx_nogui index 946a82182c..82f72c4b25 100755 --- a/gr-uhd/apps/uhd_rx_nogui +++ b/gr-uhd/apps/uhd_rx_nogui @@ -32,7 +32,7 @@ RFSQL - RF squelch zeroing output when input power below threshold AGC - Automatic gain control leveling signal at [-1.0, +1.0] DEMOD - Demodulation block appropriate to selected signal type. This converts the complex baseband to real audio frequencies, - and applies an appropriate low pass decimating filter. + and applies an appropriate low pass decimating filter. CTCSS - Optional tone squelch zeroing output when tone is not present. RSAMP - Resampler block to convert audio sample rate to user specified sound card output rate. @@ -40,8 +40,8 @@ AUDIO - Audio sink for playing final output to speakers. The following are required command line parameters: --f FREQ USRP receive frequency --m MOD Modulation type, select from AM, FM, or WFM +-f FREQ USRP receive frequency +-m MOD Modulation type, select from AM, FM, or WFM The following are optional command line parameters: @@ -51,8 +51,8 @@ The following are optional command line parameters: -g GAIN Daughterboard gain setting. Defaults to mid-range. -o RATE Sound card output rate. Defaults to 32000. Useful if your sound card only accepts particular sample rates. --r RFSQL RF squelch in db. Defaults to -50.0. --p FREQ CTCSS frequency. Opens squelch when tone is present. +-r RFSQL RF squelch in db. Defaults to -50.0. +-p FREQ CTCSS frequency. Opens squelch when tone is present. Once the program is running, ctrl-break (Ctrl-C) stops operation. @@ -72,10 +72,10 @@ from gnuradio.eng_option import eng_option # (device_rate, channel_rate, audio_rate, channel_pass, channel_stop, demod) DEMOD_PARAMS = { - 'AM' : (256e3, 16e3, 16e3, 5000, 8000, analog.demod_10k0a3e_cf), - 'FM' : (256e3, 32e3, 8e3, 8000, 9000, analog.demod_20k0f3e_cf), - 'WFM' : (320e3, 320e3, 32e3, 80000, 115000, analog.demod_200kf3e_cf) - } + 'AM' : (256e3, 16e3, 16e3, 5000, 8000, analog.demod_10k0a3e_cf), + 'FM' : (256e3, 32e3, 8e3, 8000, 9000, analog.demod_20k0f3e_cf), + 'WFM' : (320e3, 320e3, 32e3, 80000, 115000, analog.demod_200kf3e_cf) + } class uhd_src(gr.hier_block2): """ @@ -140,8 +140,8 @@ class app_top_block(gr.top_block): dev = uhd_src(options.args, # UHD device address options.spec, # device subdev spec options.antenna, # device antenna - dev_rate, # device sample rate - options.gain, # Receiver gain + dev_rate, # device sample rate + options.gain, # Receiver gain options.calibration) # Frequency offset dev.tune(options.frequency) @@ -150,27 +150,27 @@ class app_top_block(gr.top_block): audio_decim = int(channel_rate // audio_rate) chan_taps = filter.optfir.low_pass(1.0, # Filter gain - if_rate, # Sample rate + if_rate, # Sample rate channel_pass, # One sided modulation bandwidth channel_stop, # One sided channel bandwidth - 0.1, # Passband ripple - 60) # Stopband attenuation + 0.1, # Passband ripple + 60) # Stopband attenuation chan = filter.freq_xlating_fir_filter_ccf( channel_decim, # Decimation rate chan_taps, # Filter taps - 0.0, # Offset frequency + 0.0, # Offset frequency if_rate) # Sample rate rfsql = analog.pwr_squelch_cc( options.rf_squelch, # Power threshold 125.0/channel_rate, # Time constant int(channel_rate/20), # 50ms rise/fall - False) # Zero, not gate output + False) # Zero, not gate output agc = analog.agc_cc(1.0/channel_rate, # Time constant - 1.0, # Reference power - 1.0) # Gain + 1.0, # Reference power + 1.0) # Gain demod = demod(channel_rate, audio_decim) |