[Discuss-gnuradio] Syncrinization of two USRP2s

[Ulrika Uppman]

Hi,

We've set up a test comparing a recieved white noise signal recieved by two 
usrp2 recievers. The two receivers were clocked (1PPS and refclk) by a GPS 
diciplined OCXO which outpus a 1PPS signal which is phase locked to the 10 MHz 
reference. The daughterboard was the RFX400 configured with a center frequency 
of 450 MHz and a decimation factor of 4. Several cross spectrums between the 
two received signals shows that the syncronisation is drifting by +/- 1 sample. 
We would like the difference to not drift. Is this possible?

Regards,
//Ulrika