I have two B210 connected trough splitter. They both use external Octoclock REF and PPS.
I have: |complex sine| -- |uhd sink| -- |b210| -- |splitter| -- |b210| -- |uhd source|
When Rx B210 use only one channel there is no frequency difference between transitted and receivied sine (only constant phase diference).
When RX B210 use 2 channel, the two RX sines are coherent, but there is small frequency difference between TX sine and Rx sine. The level of difference is dependent from RF working frequency.
Any ideas?