RFSOC OFDM ZCU111 PYNQ Interface

I am running the RFSOC ODM demo code. I am facing issue in the receiver QPSK constellation plot. I have attached the screenshot. Please kindly give your suggestions on this.
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Hi Saravana,

This looks like a synchronisation issue. This could be down to a number of reasons. I would need to know a few things first:

  1. What board are you using?
  2. Have you made any changes to the hardware or software design?
  3. Try changing the SMA cables. Faulty cables can cause synch issues