[time-nuts] Stanford Research SR620 Measurement Bias
Magnus Danielson
magnus at rubidium.dyndns.org
Sun Sep 27 21:01:58 UTC 2009
Corby,
Corby Dawson wrote:
> Stan.
> Calibrating the units timebase per page 76 of the manual you can
> manually
> adjust the calbyte 4 word until the counter averages zero offset plus
> minus around the 5Mhz.
> You will still have the .0060 bias but it will plus and minus 30.
This will not solve his issue. Notice how the error increases in size by
about a decade as the time-base steps down by a decade. This is not a
time-base issue, this is a time-delay issue, a static delay between
start and stop events. I am preparing a more detailed answer.
Cheers,
Magnus
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