Accurate time without a network connection?

[David Kelly]

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.

Definition of "moderately accurate": doesn't have to be any better than
I can set my watch, travel to the site, and set the system time. It just
has to eliminate "travel to the site."

A GPS is one possible solution using the appropriate ntpd driver. Am not
sure I can place the GPS antenna in a suitable location.

A WWV receiver would be another viable option but I am not having any
great success in finding a prebuilt receiver with decoder suitable for
direct connection to serial port and ntpd.

-- 
David Kelly N4HHE, dkelly at hiwaay.net
=====================================================================
The human mind ordinarily operates at only ten percent of its
capacity -- the rest is overhead for the operating system.