Quoting Anastasopoulos Achilleas <[EMAIL PROTECTED]>: > > As I mentioned in a previous email, > using the "tv_wfm_rcv.py" from the latest tarballs > I get an error when decim=250 saying > > usrp_standard_rx::set_decim_rate: WARNING rates > 128 result in incorrect > gain.
Ignore that in this case, and leave it at 250 > I also put an FM antenna (from my HiFi) at the 4937, > and changed the which_side to 1, > but still I do not get anyting out of it (other than noise). > All I see in the pre-demodulation fft is a spike at 0, > which I can burry in noise if I increase the gain more that 30dB. Set the gain near about 60, and make sure you put the station frequency you want in the command line. > I get two warnings which I think are not related to the problem: > > ./tvrx_wfm_rcv_gui.py:34: FutureWarning: hex/oct constants > sys.maxint > will return positive values in Python 2.4 and up > src = usrp.source_c (0, decim, 1, 0xf0f0f0f0, 0) > ./tvrx_wfm_rcv_gui.py:36: FutureWarning: hex/oct constants > sys.maxint > will return positive values in Python 2.4 and up > src = usrp.source_c (0, decim, 1, 0xf0f0f0f2, 0) Ignore those warnings > Also, when I touch the bottom ruler (the one that controls the offset) > at the gui interface I get the message (which I think is also not > related to my problem): The DC offset is not used in this one because we are sampling at IF. Don't bother with that slider. > At this point I will start testing the standard Tx/Rx to make sure > everything works fine there. That's a good idea. Try hooking up a signal generator to the BasicRX and running usrp_fft.py Matt _______________________________________________ Discuss-gnuradio mailing list [email protected] http://lists.gnu.org/mailman/listinfo/discuss-gnuradio
