On Sep 30, 2008, at 12:07 PM, Lux, James P wrote:




On 9/30/08 8:37 AM, "Robert G. Brown" <[EMAIL PROTECTED]> wrote:


The grottiest grungy GPS receiver can probably do 100ns on its 1pps tick, and most are in the 20ns range. There ARE receivers that have systematic errors (i.e. Some sort of sawtooth in the error) and, of course, there are
countless schemes to compensate in one way or another.


So someone with some grad students and soldering irons should hook up the 1 pps output of a GPS to, say, the carrier detect pin on the unused RS232 ports of all their
nodes, and write some software...

-Larry

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