[time-nuts] Symmetricom CSAC is Cs acting like a Rb unit
phk at phk.freebsd.dk
Wed Jan 19 17:44:52 UTC 2011
In message <DBB70463B9D04F6589FBF97B2E4BE131 at vectron.com>, "Bob Camp" writes:
>Conventional gas cells have a finite lifetime on the
It used to be that Rb's would fail lock because the bulb dimmed from Rb
absorption into the glass, but I think they got that fixed with a teflon
Thes days most of them ultimately fail from the high operating temperature,
through a variety of mechanisms.
For the CSAC, my bet would be that the laser is the limiting factor.
Poul-Henning Kamp | UNIX since Zilog Zeus 3.20
phk at FreeBSD.ORG | TCP/IP since RFC 956
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