Difference between revisions of "SDR"

Revision as of 14:40, 14 April 2013

Quickstart

We currently have two rtl_tcp instances running at FIXME:

• 62.220.135.211:1234 (Raspberry PI, west window, MC's homemade VHF antenna)
• foo.fixme.ch:1234 (FIXME's internal server, north window, original UHF antenna)

Play with it using tools such as...

• SDR# (Windows only...)

GNURadio

• GNURadio multimode
• Install

 mkdir gnuradio; cd gnuradio
 wget http://www.sbrac.org/files/build-gnuradio; chmod a+x ./build-gnuradio; ./build-gnuradio
 svn co svn co https://www.cgran.org/svn/projects/multimode/trunk/ gnuradio-multimode
 git clone git://git.osmocom.org/osmo-sdr.git

• Use Multimode

 ./multimode.py --devinfo=rtl_tcp=foo.fixme.ch:1234 --freq=98.5M --dmode=WFM --mthresh=-35 --vol=10

Goal

• Install an SDR reception station at FIXME based on rtl-sdr, a DVB-T USB Stick and a Raspberry Pi.

References

• http://sdr.osmocom.org/trac/wiki/rtl-sdr
• http://gnuradio.org/redmine/projects/gnuradio/wiki
• http://spacenear.us/tracker/

HOWTO

pi@sdr1 ~ $ rtl_tcp -a 0.0.0.0
Found 1 device(s).
Found Fitipower FC0013 tuner
Using Terratec NOXON DAB/DAB+ USB dongle (rev 1)
Tuned to 100000000 Hz.
listening...
Use the device argument 'rtl_tcp=0.0.0.0:1234' in OsmoSDR (gr-osmosdr) source
to receive samples in GRC and control rtl_tcp parameters (frequency, gain, ...).

Participants

• User:Mc
• User:Francois