[Discuss-gnuradio] usrp_source to file_sink ... what gets written when no transmission

[Mir Ali]

Hi friends,

I have a usrp_source connected to a file_sink with Rx frequency 2.4GHz. I was experimenting with Tx and Rx using two different USRPs by transmitting a sine using sig_source block. 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?

Thanks,
Ali