Could you post your flowgraph (the GRC file)? --Neel
On 16 July 2015 at 18:23, Bill Eaton <billea...@aeroantenna.com> wrote: > I have a desire to use GNURadio + USRP to run a 16 QAM signal through an > amplifier, demodulate, and calculate BER or EVM or some measure of > linearity. That’s the long term goal. > > > > For the short term, I thought I would take baby steps. And I got stuck > trying to make pretty constellation plots. My flowgraph is below. It sort > of behaves like I expect for 4 QAM, but it doesn’t do so good for 16 QAM. > In the WX GUI Constellation widget, there is an option called M. Is this at > all related to the number of constellation points? If so, the max is 8 and > that might explain why I cannot make a nice 16 QAM constellation diagram. > Is there anything else I’m doing wrong? > > [image: mlist_qam_constellation.grc.png] > > [image: constellation.png] > > > > > > _______________________________________________ > Discuss-gnuradio mailing list > Discuss-gnuradio@gnu.org > https://lists.gnu.org/mailman/listinfo/discuss-gnuradio > >
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