QAM 256 Result Problem

[Babar Ali]

I want to calculate the BER. MY output of the cancelation diagram is correct but BER is 1. I also add a result digram. Can anyone guide me on how to solve this issue?

Attachments:

1. 

   eye.png
   

[Ahmad Atieh]

Dear Ali,
If the constellation diagram looks fine and the eye looks very clean as shown in the image you’ve attached, then there is an issue with setting up (connection) the BER test set.
It is too difficult to provide guidance without have access to your project. Will you be able to email it to me at ahmad.atieh@optiwave.com as a zip file, and I’ll try to help?

Regards,
Ahmad

[Babar Ali]

Thanks for the reply. I attached the BER analyzer at the output of DSP. Two input with DSP output and one with parallel to serial after the Demodulation. I also send the snape Your email.

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