[time-nuts] A counter for phase measures

[Volker Esper]

Dear fellows,

I'm searching for a counter that allows me to make automated measure 
series. Of course, Allan Deviation is an important thing to determine 
when experimenting with or developing GPSDOs (what I intend). So it 
seemed to be a nice thing to measure phase deviation with a counter (HP 
53132A or SR-620 or so).

When experimenting with that stuff I discovered, that all my equipment 
would not be adequate to determine Allan Deviations beyond 10e-11 (or 
so). The question is, can any counter deliver that precision / low noise 
to make such measurements possible? Or does it have to be a more 
sophisticated technique, such as cross spectrum analysis?

Thanks a lot in advance

Volker

(I guess you recognize, that I am just a newbie to that all)

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