12 Nov
2020
12 Nov
'20
11:44 a.m.
Hi,
How does the BTS judge if the clock satisfies its needs? Less sophisticated systems don't care and simply are unstable / off the frequency when the master clock is unstable / off-freq. The question is just because I am technically interested in the topic. Everyday there pops up some exciting stuff to learn out there :)
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.
Cheers,
Sylvain