[EMAIL PROTECTED] wrote:
> If your apparatus is indoors where GPS reception is not possible, you
> could use a CDMA timing receiver (such as this one from EndRun:
> http://www.endruntechnologies.com/pdf/PraecisCt.pdf) to make one of
> your machines a stratum 1 NTP server. If running ntpd on the other
> three machines does not provide adequate performance, you could then
> try running chrony on those machines. (Chrony clients exchange
> standard NTP packets with NTP servers.)
> 
> Gene Miller

In fact, you might be able to use one Praecis Ce OEM board on each robot 
and forget network syncing altogether.  Even under marginal reception 
conditions, these receivers will hold a millisecond for several hours 
with no signal.

Bruce

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