It looks to be about 4900Hz. I'm using the RFX2400 daughterboards on each usrp2.
Scott On Mon, Jan 11, 2010 at 2:08 PM, Josh Blum <[email protected]> wrote: > what frequency is the sine wave? You are probably looking at a slight > frequency offset due to the hardware. You may want to try giving each usrp2 > a common reference clock. > > -josh > > Scott Monteith wrote: >> >> Josh >> >> Thanks for the suggestion. It looks like you were right with it >> clipping, and scaling it down did the trick. >> >> Now, when looking at it on the other machine, running usrp2_fft.py -S, >> the signal (for the vector [0.1], repeating) is a sine wave. What is >> making it this? >> >> Thanks again >> Scott >> >> On Mon, Jan 11, 2010 at 12:16 PM, Josh Blum <[email protected]> wrote: >>> >>> I bet you are clipping, try scaling those numbers down to say 0.2. The >>> range >>> of the input on the usrp2 is -1 to 1 >>> >>> -josh >>> >>> Scott Monteith wrote: >>>> >>>> I'm having trouble transmitting using the vector source in GRC. I >>>> have it sending [1+1j, 1-1j, -1+1j, -1-1j], repeated, to a USRP2 sink >>>> and scope sink. When run, the information on the scope sink (locally) >>>> looks correct. However, on a second host machine with a another USRP2 >>>> connected, the scope output looks like noise. By comparison, using a >>>> signal source transmits the expected values (cosine) properly. >>>> >>>> I did have to change the default value of 1 for the amplitude to a >>>> lower value in the cosine signal source for it to transmit properly, >>>> but there was no similar option for that on the vector source. Could >>>> this be the issue? Any other ideas or suggestions? >>>> >>>> Thanks for the help! >>>> Scott >>>> >>>> >>>> _______________________________________________ >>>> Discuss-gnuradio mailing list >>>> [email protected] >>>> http://lists.gnu.org/mailman/listinfo/discuss-gnuradio >> >> >> _______________________________________________ >> Discuss-gnuradio mailing list >> [email protected] >> http://lists.gnu.org/mailman/listinfo/discuss-gnuradio > _______________________________________________ Discuss-gnuradio mailing list [email protected] http://lists.gnu.org/mailman/listinfo/discuss-gnuradio
