I am trying to get data through a QAM-16 Modulator and just display the data stream on a Constellation Sink. I have 8khz sampled 8-bit data(char) going into the QAM Mod block. I have the output of the QAMmod block going directly into the Const Sink. I am not seeing anything on the Constellation Sink. I put a throttle block in but that didn't help.
Any thoughts on what could be wrong? I have followed the GNUradio tutorial: Part 4 by balint256 but didn't help.
Thanks...DT