Yes, NTP actually takes into account network latency between your machine and the NTP server, so when the server gives it 12:01:01.001, if the total latency is 100mS, it knows to add 50mS and so sets the time to 12:01:01.051 and it does this a number of times, to get the average time allowing for latency.
That's a bit of a simplification, but you get the idea. 73 de M0XDF, K3 #174 -- A person usually has two reasons for doing something: a good reason and the real reason. -Thomas Carlyle, historian and essayist (1795-1881) On 12 Mar 2009, at 19:49, Mike Markowski wrote: > For situations where time is important, it's worth learning about > NTP. It's an > open protocol and is run by default on most unix-like OSes. Unlike > the Windows > NTP client which simply syncs every couple weeks (by default), an > ntp daemon is > running always on your machine. It doesn't do a simple sync but > continually, to > use the word loosely, monitors nearby time servers. The linux > laptop in my > shack is always right on time, plus or minus such a tiny amount that > it doesn't > matter. > > The protocol is used worldwide and was initially developed by Prof > Dave Mills at > Univ of Delaware, my alma mater. As an EE grad student, I used to > enjoy > attending his presentations on NTP. > > "Does anybody really know what time it is?" - Chicago :-) > > 73, > Mike ab3ap > > PS NTP can even sync against WWV for time keepers on isolated nets. > > Don Wilhelm wrote: >> Ken and all, >> >> I have been using Atomic Clock Sync for a couple years now to keep >> the >> computer clock accurate. It runs on Windows, but I recall it is >> multi-platform. Free from http://www.worldtimeserver.com. It works >> with a variety of standard time sites. >> >> Try it, you may like it too. >> >> 73, >> Don W3FPR >> >> Ken Kopp wrote: >>> I've been synching my computers clocks with the NIST >>> site for years. I think they have a little program on their >>> website that one can download ... at least I think that's >>> where I got mine >>> >>> 73! Ken Kopp - K0PP > ______________________________________________________________ > Elecraft mailing list > Home: http://mailman.qth.net/mailman/listinfo/elecraft > Help: http://mailman.qth.net/mmfaq.htm > Post: mailto:[email protected] > > This list hosted by: http://www.qsl.net > Please help support this email list: http://www.qsl.net/donate.html ______________________________________________________________ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:[email protected] This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
