On 11/14/2010 08:38 PM, John Andrews wrote: > hi, > I have the latest gnuradio installed on my Ubuntu 10.04 computers and > two USRPs with RFX-2400 cards. I tested the > benchmark_tx.py/benchmark_rx.py > <http://benchmark_tx.py/benchmark_rx.py> and > benchmark_tx2.py/benchmark_rx2.py > <http://benchmark_tx2.py/benchmark_rx2.py> with dbpsk and dbpsk2 > modulation schemes but only the old schemes work. > > 1. With old schemes both usrps transmit and receive when tested in > both tx/rx modes. > 2. With the new scheme one of the receive computer displays 'false ' > for almost all the packets received. I didn't see any successfully > received packets. > 3. One of the USRPs in the receive mode doesn't even acknowledge a > transmission and hence the benchmark_rx2.py script doesn't print any > thing on stdout. > > What changes in parameters should I try in order for them to work? > > Thanks > > > _______________________________________________ > Discuss-gnuradio mailing list > [email protected] > http://lists.gnu.org/mailman/listinfo/discuss-gnuradio > Some modulation schemes are more sensitive to frequency offsets than others.
Try that. -- Principal Investigator Shirleys Bay Radio Astronomy Consortium http://www.sbrac.org
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