I am designing my SDR system in TDD mode by using AD9361. currently, AD9361 can receive the signal sent from AD-FMCOMMS3 EBZ. But when I used other board from my design, the received cosine signal suffers from seriously distortion, whereas perfect when received from AD-FMCOMMS3 EBZ. So I conclude that there are some wrong with my transmitter.
Can you give me any hint in AD9361 configuration or anything else?
Here are the figures shown the received cosine signal I captured via ILA when I transmit ideal cosine signal.