ham/gqrx-sdr: Added (software defined radio receiver).

Signed-off-by: Willy Sudiarto Raharjo <willysr@slackbuilds.org>

1 files changed, 25 insertions, 0 deletions

diff --git a/ham/gqrx-sdr/README b/ham/gqrx-sdr/README
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+Gqrx is a software defined radio receiver powered by the 
+GNU Radio SDR framework and the Qt graphical toolkit.
+Gqrx supports many of the SDR hardware available, 
+including Funcube Dongles, rtl-sdr, HackRF and USRP devices. 
+
+Gqrx has the following features:
+
+Discover devices attached to the computer.
+Process I/Q data from the supported devices.
+Change frequency, gain and apply various corrections (frequency, I/Q balance).
+AM, SSB, FM-N and FM-W (mono and stereo) demodulators.
+Special FM mode for NOAA APT.
+Variable band pass filter.
+AGC, squelch and noise blankers.
+FFT plot and waterfall.
+Record and playback audio to / from WAV file.
+Spectrum analyzer mode where all signal processing is disabled.
+
+NOTE:
+If you use a DVB-T dongle keep in mind newer kernels already 
+contains a DVB driver, however, we do not want to use this. 
+The above "modprobe -r dvb_usb_rtl28xxu" command unloads this 
+from the kernel, however for a permanent solution you will 
+need to create the following file in /etc/modprobe.d/:
+rtl.conf and add this line: blacklist dvb_usb_rtl28xxu