I placed a file sink after the constellation demodulator and discovered that it seems too many bits are being output. Should I be packing bits before I pass the modulator output to the HDLC framer? Thank you.
James Wanga > On Oct 26, 2017, at 11:04 AM, James Wanga <jwa...@gmail.com> wrote: > > Hi All. > > Im attempting to create the simplest possible simulation of PSK modulated > HDLC Frames. Without modulation, the following works perfectly: > > Message Strobe -> HDLC Framer -> HDLC Deframer -> Message Debug. > > However when I add a BPSK modulator and receiver between the HDLC blocks. I > see nothing printed from the message debug: > > Message Strobe -> HDLC Framer -> BPSK Constellation Modulator -> BPSK > Constellation Receiver -> HDLC Deframer -> Message Debug. > > Strangely, If I place a time sink between the Constellation Receiver and the > HDLC defamer, I can see the symbols coming through. I’ve attached my flow > graph and time sink for reference. What am I missing? > > Thank you for your help. > > <Screen Shot 2017-10-26 at 10.52.48 AM.png><Screen Shot 2017-10-26 at > 10.52.59 AM.png> > > _______________________________________________ Discuss-gnuradio mailing list Discuss-gnuradio@gnu.org https://lists.gnu.org/mailman/listinfo/discuss-gnuradio