[time-nuts] another Ebay mixup
SAIDJACK at aol.com
SAIDJACK at aol.com
Sat Jun 9 16:03:42 EDT 2007
In a message dated 6/9/2007 05:20:19 Pacific Daylight Time, didier at cox.net
writes:
>You may want to run it through the cal because there are a lot of things
>that can go wrong without providing obvious clues on these counters.
>Didier
Hi John, Didier,
thanks for the feedback!
I got some updates: The RMS jitter goes down to 25 - 30ps if I don't use
"Preset" but rather very carefully adjust the trigger level settings.
There is one position on the trigger pot that is extremely tight (maybe 1/5
of a mm turn adjust on the pot!) where I get readings down to <30ps.
With that, I can actually use the instrument in 1K average mode on TI and
get readings that are meaningfull in the 10's of ps. Great! A lot better than my
53132A.
Seems I really do need to cal the unit carefully but I don't have the
calibrator needed. I remember someone mentioning a gentlemen somewhere that
specializes in calibrating this unit, does anyone here have his info? Does Agilent
still cal the units?
Thanks,
bye,
Said
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