[time-nuts] HP 5370B jitter

[SAIDJACK at aol.com]

In a message dated 7/13/2007 14:09:43 Pacific Daylight Time,  
magnus at rubidium.dyndns.org writes:

>probes), trimming up the 200 MHz multiplier chain. I shifted it  down from
>17 ps RMS to 3.9-4.0 ps RMS. Most of the trimmings where on  the 200 MHz part
>where as the 50 MHz part where fairly clean already  from start.

Hi Magnus,
 
I sent spectrum plots of the 10MHz 5370B output to this list earlier, the  
output is very sad. It's extremely dirty and jittery (well, compared to the 4ps  
noise you got, and compared to what the 10811 can deliver).
 
After calibration to 4ps, what does your 5370B unit read for it's  internal 
RMS noise now?
 
bye,
Said



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