Il 2013-01-15 15:31 David C. Partridge ha scritto:
Yes the 1992 4E adjustment is a bear. Mine behaves pretty much the
same, ISTR it took me a few days to get it adjusted to my
satisfaction
and it was still drifting a bit.
The strange thing is that mine now is changing frequency at
more than 1x10^-10 per day, measuring a 10MHz reference
this would be one digit per day, but before it was steady
on last digit for long time intervals, last digit moved up
and down only with day/night temperature variation.
Is it possible that the OCO was sealed by so much time,
opening it I changed the internal equilibrium? (humidity?).
Interestingly I saw a 1992 with a built in Rb on eBay (I think in
France) some years back but the price went way beyong my budget.
I've about this on this list, option 04R:
http://www.febo.com/pipermail/time-nuts/2011-November/060516.html
Fabio.
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