[time-nuts] What's the lifetime for a HP Z3801a?
hmurray at megapathdsl.net
Sun Aug 29 22:22:47 UTC 2010
mike.cook at orange.fr said:
> Units are three hour periods - See the 58503B Operation and programming
> guide, 5-71 HP were pretty confident in the lifetime of their product as
> they allow a 4Gig count before rollover.
I wonder why they tossed in the factor of 3. Hours seems like a fine unit.
(With 32 bits, seconds is even reasonable. That's 136 years, or 68 years if
you trip over the sign bit.)
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