Accurate time without a network connection?

[David Kelly]

On Tue, Apr 22, 2003 at 09:16:11PM +0200, Volker Kindermann wrote:
> 
> > Looking for options to keep system time moderately accurate at a site
> > without network access. So the normal application of ntpd over IP is
> > not viable. Dialup modem not allowed either.
> 
> there are external, atomic watch controlled clocks for the serial port.
> Look at your electronic dealer.

I know there are, but at the moment I'm not finding any. The original
was "World's Most Accurate Clock" by Heathkit, $400, but long out of
business.

Oregon Scientific has a lot of WWV clocks but none I could find with an
external interface.

Surfing http://www.ntp.org/ has turned up a lot of information but
little hardware. Of most interest was use of sound card connected to
radio receiver for decoding the time signals. But that's a touch exotic
for this application. Else I'd use the $20 LCD "atomic clock" I have on
my wall, a $25 USB "web-cam", and some sort of OCR.

-- 
David Kelly N4HHE, dkelly at hiwaay.net
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