[time-nuts] Lucent KS-24361, HP/Symmetricom Z3809A, Z3810A, Z3811A, Z3812...

Hal Murray hmurray at megapathdsl.net
Sun Nov 2 15:17:36 EST 2014


> By the way the z3801 is off most of the year so the drains quite small.

I think that's backwards.  The battery is only used when there is no power to 
the GPS module.

AAs are roughly 2800 mA hours.  There are 8760 hours in a year.  That's 319 
microamp years.  (How's that for a SI unit?)  So that's 3 years if your GPS 
module takes 100 uA.  I think that's way high.  Anybody measured it?  There 
is probably a strong temperature component.


-- 
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