[time-nuts] OCXO sensitive to gravity

Rick Karlquist richard at karlquist.com
Sat Aug 15 20:19:13 UTC 2009


SAIDJACK at aol.com wrote:
> If I read the post correctly, someone said they can literally "talk" to
> their DRO, and make the voice come out of their Spectrum Analyzers FM
> demodulation loudspeaker. After all, crystals are quite microphonic as
> well.
>
> bye,
> Said


A well used trick with the HP608 signal generator, which did not
have frequency modulation, was to mount a speaker on the side
of the case and drive it with 1 kHz to generate FM using
microphonics.  It supposedly worked quite well and could even
be calibrated.

Rick Karlquist N6RK




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