Hello everyone,

I try to simulate PSK modulation and demodulation without channel model to
calculate BER. The flow graph as shown below.



​​
​​From File Source to PSK Mod is working, I can see the constellation even
with ISI. But after PSK demod there's no output.

Is there's anything wrong with my fg?


-- 
Sincerely,

Surya Agam
University Al Azhar of Indonesia, Jakarta
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