[time-nuts] 10811A versus 10811-60111

[Richard H McCorkle]

Hi Corby,
This is a nice collection of data and look forward to seeing how
the Motorola and -60158 variants compare. The specs on the -60111
show < 1e-11 @ 1 sec although the results you obtained show they
are typically much better than this.

Thanks for the data,

Richard

> Hi,
>
> I have had the occasion recently to measure the aging and short term
> stability of a bunch of oscillators.
>
> Measurements were against an EFOS-2 Hydrogen Maser.
>
> I thought that the results between 10811A (-60109 variant) and the
> 10811-60111 might be of interest to some.
>
> All oscillators had aging below 5X10-10/day.
>
> As you can see the short term stability of the -60111 compares favorably
> with the 10811A.
>
> I'll be making some measurements on the -60158 variants and some motorola
> units soon.
>
> Cheers!
> Corby Dawson
>
>
> QUARTZ         1 SEC. 10 SEC. 100 SEC. 1K SEC. (ALL HAD AGING BELOW
> 5X10-5/DAY)
> ------------------------------------------------
> 10811-60109    6.11-12 2.52-12 8.78-12
> 10811-60109    1.65-12 1.91-12 9.79-12
> 10811-60109    1.65-12 1.99-12 1.11-12
> 10811-60109    5.47-12 1.16-12 2.38-12
> 105 STYLE #T 7.60-13 2.01-12 3.94-12
> 10811-60111    1.27-12 2.65-12 1.93-12
> 105 STYLE #2  1.14-12 1.57-12 2.26-12
> 105 STYLE #3  1.31-12 1.58-12 2.68-12
> 10811-60111    3.04-12 5.54-12 1.47-12
> 105 STYLE #4  1.38-12 3.49-12 4.84-12
> 10811-60109    2.05-12 2.89-12 3.24-12
> 10811-60111    1.36-12 1.17-12 1.75-12
> 105 STYLE #5  1.14-12 2.09-12 2.51-12
> FTS 1200 #1     7.14-13 1.48-12 1.92-12
> 10543A             2.86-11 1.05-11 1.63-11
> FTS 1200 #2     2.99-13 4.30-13 7.69-13 8.65-13
> 10544A             4.08-12 2.95-12 7.79-12
> 10811-60111    1.24-12 2.10-12 2.09-12
> 10811-60111    1.48-12 1.59-12 1.54-12
> 10544A             1.89-12 2.99-12 5.01-12
> 105 style #6       2.88-12 2.88-12 7.37-12
> 105 style #7       9.69-13 2.30-12 3.49-12
> 10544-60511    8.20-13 2.11-12 2.51-12
> Piezo clone        2.57-12 2.23-12 2.17-12
> 5060A osconly  4.04-12 5.94-12 8.42-12 1.30-11
> 10811-60111    2.59-12 3.87-12 5.77-12
>
> -60109spec       2.50-12 5.00-12 1.00-11
> -60111spec     <1.00-12    *       *
> 10811Aspec     5.00-12 5.00-12 1.00-11
> *not specified
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