[time-nuts] A counter for phase measures
Volker Esper
ailer2 at t-online.de
Sat Nov 3 14:10:32 UTC 2012
Thank you for the interesting information. Now, the time has come to
look for an adequate counter - anyone who has experience with the HP
53132A and the SR620? If they both where at - say 1000 USD - what would
you prefer for the job of phase measurement? I've read about that
massive single shot capability of the SR, but - as being a newbie - is
there anything I overlook at this moment?
Thanks
Volker - DF9PL
Am 02.11.2012 16:32, schrieb 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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