NavList:
A Community Devoted to the Preservation and Practice of Celestial Navigation and Other Methods of Traditional Wayfinding
Re: Online WWV time?
From: Michael Wescott
Date: 2001 Oct 24, 2:20 PM
From: Michael Wescott
Date: 2001 Oct 24, 2:20 PM
yves@REALNAMES.COM said:
> I am looking for an online broadcast of WWV time? Anybody knows if
> there is one? (And what its offset with the true broadcast would be.)
> Alternatively, what are reliable sources of time broadcast on the Web?
NTP works well. There's a list of potential servers at:
http://www.eecis.udel.edu/~mills/ntp/servers.htm
It handles the correction for roundtrip delay automatically.
> PS: A subsidiary question is: has anybody used NTP (the Network Time
> Protocol) with success to get a good clock for navigation on a laptop, for
> example? It should work well I believe.
I use NTP on my laptop and other computers (both at home and at work). NTP
will work quite well as long as you're connected to the network. I'd rather
use an NTP-synchronized computer to set my watch and then use the watch
for navigation since the drift characteristics of my watch are better
known the laptop's. Clocks on a computer can change drift characteristics
depending on cpu activity, battery voltage, temperature and so on.
--
Mike Wescott
Wescott_Mike@EMC.COM
