I woud assume that if "security" is the reason he can't have an internet connection or even run an antenna cable for GPS then a WiFi connection to anything outside of the area is totally disallowed by the rules he was to work under.
I'm worked in these places too. We did not allow anything that could conceivably carry information to be connected and that included the AC mains wiring with had to be heavly filtered, cartainly no WiFi enabled equipment, cell phones or whatever was allowed. But we've not yet heard back from Grant about what he really is alowed to do or what his budget it. Certainly if the accuracy is only "a few seconds" I don't see why a wristwatch is not good enough. On Sat, May 18, 2013 at 1:31 AM, David J Taylor < david-tay...@blueyonder.co.uk> wrote: > [] > I've not had much need for time synchronisation over the years, but in > recent years NTP has been able to get me by. Unfortunately I'm now faced > with a network that needs a moderately correct clock (I'm scared of using > the word 'acurate' around you folks!) to the order of a few seconds or so, > but with no possibility of an external internet connection (for a number of > reasons). > [] > Regards, > Grant > > ______________________________**_________________ > > Grant, > > If you can get within Wi-Fi range of a well-synced (e.g. local PPS-synced) > NTP server, you may get within a millisecond. For example, here's a > Windows-8 PC connected via its built-in Wi-Fi (not a USB stick): > > > http://www.satsignal.eu/mrtg/**bergen_ntp_2.html<http://www.satsignal.eu/mrtg/bergen_ntp_2.html> > > The local server could be as simple as a Raspberry Pi card or other Linux > or Windows PC. > > Cheers, > David > -- > SatSignal Software - Quality software written to your requirements > Web: http://www.satsignal.eu > Email: david-tay...@blueyonder.co.uk > ______________________________**_________________ > time-nuts mailing list -- time-nuts@febo.com > To unsubscribe, go to https://www.febo.com/cgi-bin/** > mailman/listinfo/time-nuts<https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts> > and follow the instructions there. > -- Chris Albertson Redondo Beach, California _______________________________________________ time-nuts mailing list -- time-nuts@febo.com To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts and follow the instructions there.