Hello there,
I'm trying to synchronize an 8-channel receiver using two USRP X310 with two TwinRx daughterboards for each USRP. However, I face a problem that phases of between received signals after calibration drifted hugely, i.e., phases were not locked.
My setup is 8 channels share the same two LOs imported from one of these channels, and Octoclock-G feeds REF and PPS signals to the USRPs.
I tried a simple investigation: calibrating 2 channels in a single TwinRx daughterboard shared the same LOs and the problem still there.
My setup configuration:
RF frequency: 100MHz
Symbol rate (per channel): 200kS/s, 10MS/s, 20MS/s
# of samples: 8192
LOs mode: shared and export
Sincerely,
