We are using AD9361 IC on our RF board for the implementation of a custom Wimax solution. We are able to transmit data from the RF board and we have verified it using a spectrum analyzer. But, we are unable to receive any data on the RF board. We suspect there might be an issue with the data/feedback clock. We have captured images of the data clock (channel 1 (yellow)) and feedback clock (channel 2 (green)) on an oscilloscope. Please find the images attached.
Feedback clock is derived from data clock by using a buffer on the FPGA. Baseband processing is implemented on the FPGA. Please let us know, if there is an issue which needs to be corrected with respect to data/feedback clock.
Thank you for your help