Antonio, I'm not sure why it's telling you 'no BER', but your setup is not suitable to test BER anyway. Your DPSK demod will always be offset w.r.t the DPSK mod input (because of sync delays etc.).
Such BER measurements only work well if you can guarantee you're comparing the right bits. Since you're doing packet-based transmission, you'll need to come up with something more sophisticated comparison. Cheers, Martin On 06/12/2016 12:22 PM, ANTONIO TAMAYO wrote: > Hello all, > > I'm trying to calculate de BER value of the comunications system of the > image attached. I'm using a DQPSK modulator and demodulator. I think > that I have made mistakes in the configuration of my sistem because the > BER value always is "none", but I can't solve them. Somebody could help me? > > Regards, > > Antonio. > > > _______________________________________________ > Discuss-gnuradio mailing list > Discuss-gnuradio@gnu.org > https://lists.gnu.org/mailman/listinfo/discuss-gnuradio > _______________________________________________ Discuss-gnuradio mailing list Discuss-gnuradio@gnu.org https://lists.gnu.org/mailman/listinfo/discuss-gnuradio