12 Nov
2020
12 Nov
'20
11:47 a.m.
Hi,
I can't be 100% sure, but my understanding is it just compares to its internal OCXO.
It know the margin of error of its OCXO, so if the incoming freq is more different than what it expects, Either the OCXO went bad or the incoming clock is bad. In either case, it's a fault.
OK, possibly less sophisticated than expected :) I have thought about some crazy jitter and drift detection...
Cheers,
Sylvain
Thanks!
Ralph.