[time-nuts] accurate portable time source

Hal Murray hmurray at megapathdsl.net
Fri Dec 28 17:55:34 UTC 2007


> it has to run of its own power supply for ~18 hours a day, and
> recharge fully at night. the device must be intrinsically accurate
> without be disciplined by an external signal, although that could be
> done at night. The size and wei8ght need to be pocketable such a a
> large cell phone.I

Is an actual cell phone an interesting answer?

Has anybody checked how good the time displays on various cell phones are?

It's software.  All sorts of dumb things are possible.  I think I've heard 
stories of one being off by several/many seconds.  The basic time-of-day info 
must be included in the basic timing transmission or places like EndRun 
wouldn't be able to provide it.



-- 
These are my opinions, not necessarily my employer's.  I hate spam.







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