[time-nuts] Re: Do crystals still jump?

[Bob kb8tq]

Hi

Long enough could be a couple hours. Come back to the same part
after a while (months … years) and you might wait weeks. Look for
many years on just about any OCXO and you probably will see something. 

Look for 1x10^-11 burps down in the noise and you will see lots of things
that *might* be a step. Look for stuff over 2 ppb on a modern SC based
part and you will wait a *very* long time. Do the steps get smaller on a 
given OCXO? they don’t seem to …. are they always the same size? Nope.

If that’s confusing, you got it right. This is *not* a highly organized / easily
predicted sort of effect. 

Bob

> On Sep 4, 2022, at 11:44 AM, Hal Murray via time-nuts <time-nuts at lists.febo.com> wrote:
> 
> 
> Richard (Rick) Karlquist said:
>> A crystal might appear not to jump for while, but if observed long enough you
>> would always see a jump sooner or later. It wasn't like you could sort them
>> for "non-jumping" units. 
> 
> What sort of time scale is there for "long enough"?
> 
> Is it something like earthquakes where smaller ones happen more often?
> 
> -- 
> These are my opinions.  I hate spam.
> 
> 
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