[time-nuts] 10811-60105 and -60111

Tom Van Baak tvb at leapsecond.com
Tue Aug 17 09:39:06 EDT 2004


Both the -60105 and -60111 are slightly lesser
grade versions of the 10811A; needing only to
meet a short-term stability of 1e-11 at tau one
second.

The difference between the two is that the long
term drift spec for the -60111 is 5e-10/day (like
the 10811A) while the -60105 is 1.5e-9/day (3x
worse).

Keep in mind that the original specs often don't
mean much after you get a 10 or 20-year old used
10811. I've seen some cheap -60105's do really
well and some expensive 10811A's do horrible.

/tvb

----- Original Message ----- 
From: "Alberto di Bene" <dibene at usa.net>
To: "Time Nuts" <time-nuts at febo.com>
Sent: Tuesday, August 17, 2004 03:25
Subject: [time-nuts] 10811-60105 and -60111


> What are the differences between a 10811-60105 and -60111 ?
> I have a PDF from HP with the specs for the various 10811 models, but
> while the -60111 is there, the -60105 is absent.
> 
> Thanks for any info
> 
> 73  Alberto  I2PHD
> 
> 
> 
> 
> _______________________________________________
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