Have you inspected the packets and verified them to be corrupt? BR Nikos​
On Sun, Mar 13, 2016 at 10:22 AM, SangHyuk Kim <tkdgur7...@gmail.com> wrote: > Hi all. > > I'm using benchmark_tx(rx).py example > > I experimented variety modulation schemes and GMSK, BPSK, QPSK modulation > worked well > > However, when I used QAM modulation, most of received packet were > corrupted (FALSE) > > ENV) > both TX and RX uses USRP N210 with ANT500 and CBX 40MHz > distance between TX and RX is shorter than 3m > > TX) > ./benchmark_tx.py -f 1.5G -m qam -S 8 --tx-gain=30 > > RX) > ./benchmark_rx.py -f 1.5G -m qam -S 8 > > RESULTS ON RX) > ok = FALSE pktno = 1 n_rcvd = 1 n_right = 0 > ok = FALSE pktno = 2 n_rcvd = 2 n_right = 0 > ok = FALSE pktno = 3 n_rcvd = 3 n_right = 0 > ... > ok = TRUE pktno = N n_rcvd = N n_right = 1 > ... > > Is this normal case of qam modulation ? > How can I get more TRUE packet using QAM modulation ? > > Thanks. > > _______________________________________________ > Discuss-gnuradio mailing list > Discuss-gnuradio@gnu.org > https://lists.gnu.org/mailman/listinfo/discuss-gnuradio > >
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