Thank you so much for your reply… I used two forks at the output of my ofdm demodulator. and one of the forks connected to the input of my PSK decoder as mentioned by you but the other fork which has two outputs can’t be connected to a pulse generator (NRZ pulse generator) that has only one input and one output, and the Electrical constellation visualizer has 2 inputs. where do i connect the other input of the second fork been connected to a pulse generator?
The connection is attached