> [Is] the average frequency meter is sensitive enough to detect the change=
 through the noise.

I would think not.  He's looking at ~5e-3 out of 10e6 MHz, or 0.5 parts per=
 billion.
"Average" frequency counters won't even display that many digits, nor will =
your "average" frequency source be stable enough to observe it.

You can find devices that operate on the same effects.  "Tuning fork gyrosc=
ope" and "Tuning fork accelerometer" are both real things.

OTOH, Dave has been known to slip in the occasional joke episode=85

BillW


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