> I don't understand why is it that the > usrp_source writes some junk data to the file_sink even when I am not > transmitting from the other USRP. Is it possible that it might be picking up > some stray signals at 2.4GHz?
The USRP receiver has no idea when the transmitter is sending, all it does it step down the signal and spread it out. If there is nothing there you will still get junk, especially if you are using some form of agc which will make your amplitudes constant even if there is very little power. You can try to record only when the transmitter is on through judicious use of gr.pwr_squelch_cc with the gating turned on. Jason _______________________________________________ Discuss-gnuradio mailing list Discuss-gnuradio@gnu.org http://lists.gnu.org/mailman/listinfo/discuss-gnuradio
