Hi John,
My experience, which is far from scientific, is that any disturbance to the
Trimbles I use is like a slap in the face. It can be just a momentary power
loss or a large change in the EFC. After either of these events, it goes into
some period of retrace before it settles back down. The longer the time or the
bigger the EFC excursion, the longer it takes to settle back down. But, as
mentioned, I haven't done any real tests to measure the impacts.
Bob -----------------------------------------------------------------
AE6RV.com
GFS GPSDO list:
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From: John Ackermann N8UR <[email protected]>
To: Discussion of precise time and frequency measurement <[email protected]>
Sent: Sunday, February 5, 2017 2:11 PM
Subject: [time-nuts] What interrupts aging?
We know of OCXO that have been continuously running for years and have
exceptional aging, supposedly as a result.
What does it take to interrupt that? A momentary loss of power? The
oven cooling down? Some long period of off-time? Or, once the
oscillator has baked in will it return to that low aging once it has
been powered up and thermally stabilized?
John
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