On Fri, Apr 8, 2011 at 10:22 AM, Tachwali, Yahia <ytachw...@ou.edu> wrote: > Hello Guys, > > I am experiencing some problems in transmitting/receiving at frequencies > around 900MHz for WBX board. While, I am able to do so cleanly at > 900MHz, other center frequencies are not. > > The signal bandwidth : 50 KHz > The sampling frequency: 200 KHz
What signal amplitude? What gain setting? Which antenna port? > > I have tried 901MHz , 900.1MHz, 910MHz and many others but the received > signal appears to be wider than it should be. The signal level is higher than > -40dbm over the total 200 KHz range when these frequencies are used. This usually indicates a sample rate mismatch in your flowgraph, if you post an example to replicate your problem, it will be easier to help you. > > The only frequencies I was able to use with no problems are 900MHz, > 1.8 GHz , 890MHz, 880MHz. > > What could be the problem? I have tried to use "tune_request_t" in the target > frequency paramter but it gave similar bad results . Any pointers? What parameters did you give to the tune_request_t? Have you looked at the tune_result_t returned by set_center_freq? Jason _______________________________________________ Discuss-gnuradio mailing list Discuss-gnuradio@gnu.org http://lists.gnu.org/mailman/listinfo/discuss-gnuradio
