[time-nuts] Wavecrest vs. HP 5370 vs. SR620 Jitter measurements

Demian Martin demianm_1 at yahoo.com
Sat Mar 20 04:02:49 UTC 2010


>At some point I'll re-run tempco and jitter measurements of the dividers
and 1PPS distribution amps >I have here.
>Last time I used a 5370B and a SR620. This time I'd like to try a
Wavecrest. If someone on the list >has done this already can you let me
know?

>Thanks,
>/tvb

I have read through the data sheets on all of these and am very interested
in the differences in reality. The Wavecrest claims 2 pS Jitter measurement.
The HP has a single shot resolution of 20 pS, The SR620 is 25 pS and the
Wavecrest specs say 20 pS. How does the Wavecrest get .1X minimum Jitter
measurement of the others with the same resolution? Can that trick be
applied to the others?

         Demian






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