Hi What sort of accuracy do you need? If 1 ms is "good enough", then indeed a GPSDO would keep you running through a pretty long outage. Most are designed for a 1 us / day sort of stability. You should be able to run for a few months without GPS access with one in holdover.
Bob On Aug 5, 2012, at 5:36 PM, Miguel Gonçalves <[email protected]> wrote: > Hi there! > > I currently have 2 embedded machines connected to a Garmin 18 LVC and a Sure > GPS board. > > They are NTP servers for my company's LAN and I, at the moment, I get sub-ms > accuracy over the LAN. > > Everything is fine but I am a bit worried about the GPS reliability because > GPS is ruled by the USA. Would a GPS disciplined oscillator solve any > potential problems? A receiver for GLONASS, even though I did not find any at > a reasonable price, would be better? > > An iridium oscillator calibrated, regularly by GPS? > > Too many questions... but in the end I would like to know what is the best > path that I could follow after these GPS receivers. > > Many thanks! > > Regards, > Miguel > > > _______________________________________________ > 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. _______________________________________________ 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.
