Thanks for the replies. I have checked the Quadrature values and they are indeed 0.0
I had already followed the steps to flash the SD card (using the one that came with the USRP2) and used the firmware (txrx.bin) that gnuradio (rev 10306) produced using make. I used the latest u2_rev3.bin (dated Dec 31) that is sitting in http://gnuradio.org/releases/usrp2-bin/trunk/ Just to check I redid the whole process of flashing and retried my tests and had the same results. Should I suspect my svn revision and update to the latest? I'll try that for now, but if anyone has suggestions I'm all ears :) Thanks for the help so far! -Leslie On Fri, Jan 30, 2009 at 12:26 PM, Michael Ossmann <m...@ossmann.com> wrote: > On Fri, Jan 30, 2009 at 11:30:40AM -0800, Leslie Choong wrote: >> >> 2. More importantly, I am not seeing any quadrature component in the >> IQ-plot (besides the noise at the beginning). > > I had this problem or one very similar when I had upgraded the > firmware on the SD card without upgrading the FPGA build on the > card. See: > > http://gnuradio.org/trac/wiki/USRP2UserFAQ > _______________________________________________ Discuss-gnuradio mailing list Discuss-gnuradio@gnu.org http://lists.gnu.org/mailman/listinfo/discuss-gnuradio
