[time-nuts] humidity sensitivity of 10811

Richard (Rick) Karlquist richard at karlquist.com
Tue Jul 22 02:47:07 EDT 2008

Moderate humidity changes caused frequency shifts on the
order of parts in 10^9.  With the environmental chamber
on full throttle, I saw parts in 10^8.

The E1938A has an unmeasurable humidity coefficient, even

Rick Karlquist N6RK

Jim Lux wrote:
> Some mention has been made recently of the sensitivity of the  
> pervasive and ubiquitous 10811 to humidity changes.  What sort of  
> general magnitude are we talking about here.. 1E-12, 1E-9, etc.
> Jim Lux
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