It is entirely possible that a 10544 could have excellent aging and beat
a 10811. The SC cut doesn't improve aging. The other "disadvantages"
of the 10544 in terms of electronics also don't affect aging. The
main advantage of the 10811 is that it is much better from a cold start
in an instrument. Not something that affects time-nuts users.
Rick Karlquist N6RK
Robert Atkinson wrote:
Hi Charles,
See http://www.leapsecond.com/museum/10811a/90027-1.pdf for details of the
10811D/E versions and options. It's been appended to this copy of the A/B
manual http://www.hparchive.com/Manuals/HP-10811AB-Manual.pdf
Hope this helps.
Robert G8RPI.
--- On Thu, 11/3/10, Charles P. Steinmetz <charles_steinm...@lavabit.com> wrote:
From: Charles P. Steinmetz <charles_steinm...@lavabit.com>
Subject: [time-nuts] HP10811 taxonomy?
To: "Discussion of precise time and frequency measurement" <time-nuts@febo.com>
Date: Thursday, 11 March, 2010, 4:07
Has anyone compiled a taxonomy of the apparently numerous variants of 10811
OXOs? (Distinguishing features, rated performance, used in what instruments,
etc.)
Also, I found Mark's observation that 10544s may drift less than 10811s interesting. I
own several 10544As and have experience with perhaps several dozen others, and think very
highly of them, but haven't seen enough 10811s for a meaningful comparison
("meaningful" being a relative term, when the sample sizes are as low as
dozens). What have others observed?
Best regards,
Charles
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