[time-nuts] Making a HP 10811 better
EWKehren at aol.com
EWKehren at aol.com
Mon Mar 29 23:47:28 UTC 2010
I am still looking for them this was eighteen years ago and I was not in to
it and used it as a poor man's frequency standard. I only joined time nuts
last year, have learned a lot and am just now putting in place equipment
to measure. Still waiting for Corby to complete some tests to release the
Dual Mixer as of today we are still stuck at 3 E-13 not bad for a system with
counters at less than $ 200, but the goal is 1 E-13.
Bert
In a message dated 3/29/2010 3:52:45 P.M. Eastern Daylight Time,
tractorb at ihug.co.nz writes:
Bert
Want to share the results?
More info re the experiment would be of interest as well.
DaveB, NZ
----- Original Message -----
From: <EWKehren at aol.com>
To: <time-nuts at febo.com>
Sent: Tuesday, March 30, 2010 6:32 AM
Subject: Re: [time-nuts] Making a HP 10811 better
>I would not feel comfortable tearing into the unit.
> Controlling its environment and power to it yes.
> I did that with a 10811 and a 10544 years ago by drilling a 20 foot
> hole
> in my Dallas backyard lowering the units in it with support
> electronics in
> place and sealing the shaft with individual sand bags each with a
> numbered
> string, so I could pull them out one at time when I had to get to
> them. Did
> not have the equipment I have today but I did manage to borrow a
> 5061A for
> set up. Here in Miami being right on the water it is not an option.
> When I
> relocate from Miami to dryer grounds I may repeat it with a
> Rubidium.
> Bert
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