The best NTP program to run is the reference implementation at ntp.org This is the one all the experts are looking at and fixing when problems or improvements are found. ftp.org also on their download page as a link to third party parts and re-implementatons for those who for whatever reason can't use the official release from ntp.org. This is the same software that almost all of the NTP servers out on the Internet are running.
You are right about using just one NTP server for time. I'd suggest a minimum of three but it cost not more to use five. NTP will figure out which of them are "best" from the set you get it. What kind of accuracy do you need? I assume if the computer is running Windows 10 all you need is the nominal time to maybe 1/10th of a second at best. That is 100 milliseconds and is dead-easy such that even MS Windows with a poor internet connection can work at that level. You should be able to get to tens of milliseconds. With effort the above software from ntp.org can run at the few micro seconds level. That should be within the means of any radio club but you may not need it. It would involve putting up a GPS antenna, running coax to a GPS receiver. Nothing a bunch of hams could not handle but you may only need 30 to 50 millisecond accuracy and Windows can do using poll servers on the Internet. All that said, You MAY already have a good NTP server running at your site. Many home routers run NTP inside and are left on and running 24x7. The router uses ntp just to get the time of the log files correct and likely does this bater then MS Windows. If you have a local ntp server then using just one server (the local one) is fine. On Thu, Sep 1, 2016 at 11:29 PM, Dr. David Kirkby <[email protected]> wrote: > At my amateur radio club we have Internet access via a WiFi dongle with a > Pay As You Go card. A Windows 10 PC is only powered up while we are there, > so on around 2-4 hours per week. > > Does anyone have any thoughts on what might be the most suitable software > to run on our Windows 10 PC to set the time correct? > > Someone installed "Dimension 4" > > http://www.thinkman.com/dimension4/ > > As far as I can see, this takes the time from one single NTP server, which > I believe is not a good idea. However, given we only run the PC on 2-4 > hours per week, maybe no ntp client will work well, but I would have > thought using multiple servers being better than one. > > I am wondering if anyone has any better suggestions for software. . > > Dave. > _______________________________________________ > time-nuts mailing list -- [email protected] > To unsubscribe, go to https://www.febo.com/cgi-bin/ > mailman/listinfo/time-nuts > and follow the instructions there. > -- Chris Albertson Redondo Beach, California _______________________________________________ time-nuts mailing list -- [email protected] To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts and follow the instructions there.
