DAQ3: adc signal captured seems incorrect

Hello Guys,

I have modified the kcu105 no os project to configure fmc-daq3 on ZCU102, after many changes, finally the board has been run successfully, and the adc works. I put the adc to test mode and captured data correctly, however when I connect a B200 (ettus USRP) TX to the RX input, the signal is not clean and seems to be saturated. the freq I have captured is shifted about 6 MHz and many spurs and undesired dc is appeared.

the signal should be in 430MHz but it is in 436.5 MHz.

did the configuration procedure go wrong?

could anyone help me to find out the problem?