[time-nuts] Low cost synchronization
bg at lysator.liu.se
Sat Aug 20 17:36:06 EDT 2005
Mike Ciholas <mikec at ciholas.com> writes:
> On Sat, 20 Aug 2005, Tom Van Baak wrote:
> > This sounds odd to me given that cell phones I've seen can
> > display the date & time and they appear to be accurate to a
> > second.
> In my experience, cell phones are accurate to within a second as
> compared to the WWVB sources. That is more than we need.
CDMA phones (mostly US-ONLY) seems to have good timing
information. The FDMA system GSM (rest of the world except Japan) IIRC
does not use absolute time in the base station and has no time service
to the terminals (phones).
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