TAI zone?

Tony Finch dot at dotat.at
Fri Jul 1 18:20:43 UTC 2011

Paul Koning <paul_koning at Dell.com> wrote:
> It says that the active medium is cesium, but then mentions a resonant
> frequency that is not the one used in the definition of the second.  So
> either the author is very confused and pulled a random number out of the
> air, or we're dealing with a different resonance than the standard one.

It's half the frequency of the hyperfine radiation.

f.anthony.n.finch  <dot at dotat.at>  http://dotat.at/
Cromarty, Forth, Tyne: Variable, becoming north or northeast, 3 or 4. Smooth
or slight, occasionally moderate in east later. Fair. Good.

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