Hi Damian, Thanks for your reply. I already tried that one. I put the leading and trailing zero inside the Bit error Test set under the script having formula “(Time window * 3 / 100 ) * Bit rate”. Then i compared it with standard PRBS generator with same data rate and measured the signal by using signal analyzer component. The binary signal generated by PRBS is random in nature, means if we simulate again it generate bits in different order but Bit error test component generate the same bits every time when it simulates. Also why the result are changes like constellation when using BER error test set instead of standard PRBS generator. With standard PRBS generator the result are showing 4 quadrants but with Bit error test set, the results are showing 9 quadrants. Any reason why ??
