[time-nuts] Oncore question
SAIDJACK at aol.com
SAIDJACK at aol.com
Mon Nov 24 17:19:19 UTC 2008
Hi Arnold,
not sure what voltage the crystal stops at, that is probably different
unit-to-unit. It happens on the M12+, it may not happen on other Oncores.
As someone else mentioned, if you only use the Li battery during power
outages, it will probably last a very long time, years and years. It's mostly an
issue when the unit is un-powered, in storage.
bye,
Said
In a message dated 11/23/2008 13:05:10 Pacific Standard Time,
Arnold.Tibus at gmx.de writes:
Hi Said,
thank you very much for the additional clarification, very interesting
behaviour. I think this does confirm roughly my assumption. When only pwr
fails for a few hours (intermittant) have to be taken into account, super
caps
may be good for safe work during several hours up to perhaps 24 hours,
but not beyond, is that right? Do you know at what voltage the clock does
resign?
Perhaps this could be improved with a software solving the recovery problem
when repowering the RX.
You describe that using LiIon batteries are not yet the ideal way, but why
cannot higher capacities come into play (space should be not the problem
for on ground use in fix stations)?
regards,
Arnold
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