As sanity check I’m trying a simple flowgraph in GRC with a QAM
Vector Source ==> Throttle ==> QAM Mod ==> QAM Demod ==> Unpacked to
==> File Sink
The parameters in the mod/demod are as default. I also have a File Sink
before the mod.
In the output I see first a bunch of zeros, then a bunch of random
and after 20 or so bytes I get a sequence with the same period as the
original one, but different numbers. I suppose this is a problem of
What’s the right way to simulate a simple mod/demod? How do I add sync
between mod and demod?