Hi Alaa,
for the project of the screenshot you have sent to me, here is my suggestion to connect BER visualizer.
you can replace the “Pseudo-Random Bit Sequence Generator” and use the data generated by “BER Test Set”. Also connect the output of the QAM to the input of the “BER Test Set”. in this case the “BER Test Set” can compare the output bit stream to the input bit stream of the communication system.
so you can display Bit Errors, BER ..and other output statistics.
Hope that helps,
thanks
Mohamed