I am using FMCOMMS4 board + ZED board with NO OS drivers. Added a bandpass filter on I Channel and Q Channel in FPGA and sweeping RF input to RX and capturing the bandpass spectrum at TX. I am observing the both negative and positive bandpass responses. But as per AD9364 manual the RF input splitted to I and Q at Rx and again TX side both I and Q mix together and generate single RF output. But this is not happening in my case. Attached and bandpass response for your reference. Please help me if any settings required to capture single side band.