[time-nuts] GPSDO time constant
magnus at rubidium.dyndns.org
Thu Jan 8 12:50:37 EST 2009
brooke at pacific.net skrev:
> Hi Magnus:
> I think some labs don't think about 90 degree turnovers, for example:
> I've heard that the xtal oscillator cal procedure for some HP test
> equipment says that the instrument should be in the same position as when
> it's operating. For heavy rack equipment that means you lay on a
> mechanics creeper when making the adjustment rather than flipping the
> instrument 90 degrees on a bench.
So you didn't check out your HP gravity field wrapping mirror?
Those are SO handy. :)
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