On 11/4/16 6:56 PM, Bob Stewart wrote:
In the general case, is the impact of changing the ambient temperature around
an OCXO from, say, 40C to 41C the same as changing it from 41C to 40C all else
being equal? IOW, if I somehow have the same temperature ramp over the same
time period in both directions, will I wind up with the same frequency and
phase, or will the frequency revert but at some phase difference?
most oscillators exhibit some degree of hysteresis - the mechanical
mounting puts stresses on the crystal, if nothing else.
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