The fsk modulator/demodulator from the examples may be something you could use http://www.mail-archive.com/discuss-gnuradio@gnu.org/msg00281.html
Run these commands in different windows: $ ./fsk_rx.py -f /dev/null -c 10M -r 100k -N $ ./fsk_tx.py -f /boot/vmlinuz -R -c 10M -r 100k -N > -----Original Message----- > From: [EMAIL PROTECTED] [mailto:discuss- > [EMAIL PROTECTED] On Behalf Of Angilberto Muniz > Sb > Sent: Sunday, May 01, 2005 5:00 PM > To: Eric Blossom; Harald Welte > Cc: discuss-gnuradio@gnu.org > Subject: Re: [Discuss-gnuradio] Using USRP from multiple > applicationssimultaneously > > Matt, > Would you provide a very simple analog-loop-back > sample application? I mean, I'd like to hookup a cable > between Analog-out to Analog-in, generate some signal > e display its waveform on the oscope... > > I cant seem to make it work -- may be my analog > d'board are not working -- unfortunately I dont have a > real scope on handy to check it... > > Angilberto. > > > > ... > > The Tx and Rx sides are completely independent and > > we often run > > different apps for Tx and Rx simultaneously. The Tx > > and Rx paths have > > different USB endpoints for their streaming data. > > ... > > __________________________________________________ > Do You Yahoo!? > Tired of spam? Yahoo! Mail has the best spam protection around > http://mail.yahoo.com > > > _______________________________________________ > Discuss-gnuradio mailing list > Discuss-gnuradio@gnu.org > http://lists.gnu.org/mailman/listinfo/discuss-gnuradio _______________________________________________ Discuss-gnuradio mailing list Discuss-gnuradio@gnu.org http://lists.gnu.org/mailman/listinfo/discuss-gnuradio