[time-nuts] 5370B OXCO

Bob Camp lists at rtty.us
Sat Mar 13 00:59:52 UTC 2010


Hi

The real question is not how good the best were, but how bad the worst were. If the majority of the population was at 10X where yours is or better, selection would be pretty cheap.

Bob


On Mar 12, 2010, at 2:24 PM, Corby Dawson wrote:

> Referencing the performance of 10811 variants really does not help make a
> good evaluation.
> 
> You need to measure a particular oscillator to see what it really does.
> 
> I have rack mounted a 10811-60111 that I use as a short term stability
> reference.
> 
> This particular one is consistent with:
> 
> 1 sec     6.14X10-13th
> 10 sec   3.52X10-13th
> 100 sec 3.35X10-13th
> 
> This of course is a selected unit, but after testing MANY of the
> different variants it is one of a small percentage of excellent ones.
> 
> Using it as a counter time base would be a waste!
> 
> Corby Dawson
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