Hi all, In the past I had performed the following successful experiment using two N210's connected with a MIMO cable:
I transmitted a single sinusoid of 10KHz through on USRP at a carrier of 1GHz and received it on another N210. The latter was configured to use the MIMO cable for clock reference. I was able to verify that the two clocks are indeed synced because I saw a single (noisy) point at the constellation scope (after correcting for the 10KHz on the Rx side) that was very stable (no rotation). I wanted to do the same with two X310's and connected them through a cable from the REF OUT of the first to the REF IN of the second. I also changed the Rx clock reference: Mb0: Clock Source = EXTERNAL Mb0: Time source = EXTERNAL However this experiment was unsuccessful: I do not see a single point but a circle which indicates that the two clocks at Tx/RX are not synced. Can you guide me as to what I am doing wrong. thanks Achilleas
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