[time-nuts] RE: phase locking Rb to GPS

Brooke Clarke brooke at pacific.net
Sun Oct 23 14:29:07 EDT 2005


Hi Richard:

It's my understanding that this optimization can be done by changing the 
oscillator power level at the crystal.

In the case of the 32768 Hz watch crystal, it must be run a very low 
power and it has a very low aging rate when compared to higher frequency 
crystals that are typically run at higher power levels.  I think this is 
related to the crystal throwing off atoms, so more power means more 
acceleration and more atoms thrown off.

Have Fun,

Brooke Clarke, N6GCE

-- 
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Richard H McCorkle wrote:

 . . .  snip . .

>Since both units are the same model, but with different
>P/N and both meet the OCXO134-10 spec but have different characteristics I
>believe they were each optimized for a different characteristic when
>originally ordered, one for low aging, and one for high stability.
>
-- 
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w/o Java http://www.pacificsites.com/~brooke/PRC68COM.shtml
http://www.precisionclock.com





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