On Wed, 2008-11-26 at 00:43 +0000, Unruh wrote: > >> After a bit of googling I found an excellent write-up on how to use > one > >> of these for an NTP server [http://time.qnan.org/ "Using a Garmin > GPS 18 > >> LVC as NTP stratum-0 on Linux 2.6"] > >> > > With your 100m setup you really want a buffer amp on the line. At > 100m, the > one way trip is .3ms, with reflections every .6ms which might make the > system a bit weird. To get rid of the reflections you need a 100ohm > termination if you use cat5e cable to lengthen the 5m wire on the > receiver.
Thank you. Excellent idea. When we get it and find how long a cable we really need we'll refine the calculations. :-) ./Cal _______________________________________________ questions mailing list [email protected] https://lists.ntp.org/mailman/listinfo/questions
