[time-nuts] Oscillator Aging Trends

[John Ackermann N8UR]

Here are two more of those neat images-worth-a-thousand-words that 
sometimes show up.

I've been testing an Oscilloquartz 8600B BVA and did a series of 24 hour 
measurements over about a week, starting a day after powering it up. 
When you put all the ADEV plots on a single chart, you can see how the 
performance improves day over day.  If you put the frequency plots on 
one graph with "start at zero" selected, the sequential improvement is 
really dramatic.

John

(Notes:  1.  The reference was an 8607 BVA that's been running 
continuously for several years.  2.  There are a few hours of dead time 
between the end of most runs and the beginning of the next.  There's 
about three days of dead time before the final run because I was out of 
town.)

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