[time-nuts] Vibrations

Stan, W1LE stanw1le at verizon.net
Thu Feb 11 14:30:04 UTC 2010


Hello Raj,

I integrated a Symmetricom model X72 Rb  into a Down East Microwave 
(DEMI) chassis
and it does experience microphonics. This was for a friends 10 GHz 
transceiver used for portable work.
So getting rid of the microphonics is important.
Somehow I need to mechanically isolate the Rb from the chassis and still 
have a heat sink.

Stan, W1LE


Raj wrote:
> While comparing a Rb FE5680 frequency reference with another RB or GPSDO I find that tapping a Rb unit causes a sudden shift in the scope display meaning the frequency has slightly shifted momentarily and locks back steadily with a phase shift. This does not happen in another Rb FE5680.
>
> Would something be loose I wonder ? Any experiences?
>
> Cheers
>
>   




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