On 17.07.2015 05:35, Sylvain Munaut wrote: > AFAIK the constellation sink just can't do QAM. >
Yeah, and personally I've always doubted the utility of a dedicated constellation sink (guess what, it's gone in QT). The reason being, if the GUI widget has it's own demod chain, you're always plotting something that's unavailable elsewhere in the flow graph. My preference is to build the demod/sync chain with it's own blocks, and then just output the complex symbols into either an X/Y plot (WX) or the QT Constellation Sink. This way, you have better control over the timing, phase etc. recovery. And, in your case, you can actually start with baby steps. So you can start by testing your QAM mapper directly with the graphical sink. Then, as you add stuff, you can how well e.g. the timing recovery is working. Makes sense? M _______________________________________________ Discuss-gnuradio mailing list Discuss-gnuradio@gnu.org https://lists.gnu.org/mailman/listinfo/discuss-gnuradio
