It is USRP2, my system setup is Ubuntu 9.04+Gnuradio3.2.2. My test codes includes the benchmark OFDM, BBN code, which i tested smoothly before both cabling and over the air.
TX uses XCVR2450, the RX uses RFX2400 or DBSRX-LF. Best, Guanbo On Feb 17, 2011, at 10:42 PM, "Marcus D. Leech" <[email protected]> wrote: >> Hi >> >> I used XCVR2450 daughterboard for TX and RX on USRP2 and everything is >> fine. >> Recently I began to use RFX2400 and DBSRX-LF, which I found out the >> performance are much worse than XCVR2450. >> Observed from FFT plot, I found out there are some weird spectrum >> response using RFX2400 and DBSRX-LF respectively. >> Furthermore, I am not able to decode some OFDM example anymore! (I >> compensated the correct carrier frequency already) >> >> I am wondering if I need to update something like firmware, in order >> to use those two new daughterboards. >> Thanks, > You haven't given us much to go on. > > What does your test setup look like? Are you using USRP1? USRP2? > USRP-N210? Using UHD? > > Are you tests over-the-air or with cables? Are you using attenuators in > the cabling? > > > > > -- > Principal Investigator > Shirleys Bay Radio Astronomy Consortium > http://www.sbrac.org > > > > _______________________________________________ > 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
