Hi, My university would like to have a <1ms precise source of time to do some networking experiments (measure one way propagation delays etc...). So I wandered on the internet to find the best choice with a budget of ~1000€ (~1100 American dollars). I've been overwhelmed by the number of possibilities (atomic clocks/GPS signal etc...) and as no price appear on the seller websites, it's difficult to rule out options.
I hope it's within the scope of the mailing list but I would like some advice on good hardware with the previous constraint (budget ~ 1100 $, precision < 1ms). We can install an antenna in clear horizon. From what I gather, the GPS option looks a good choice but then I am unsure what the underlying NTP server would look like. It would be in a computer room (some temperature variation is expected, even though there is cooling). Meinberg looks great but I believe they are too expansive for our budget. I've seen that one cheap http://www.gpsntp.com/gps-ntp-services.php but this feedback (http://www.reddit.com/r/sysadmin/comments/23e72i/gps_ntpserver_rack_mount_device_minireview/) is not fantastic. I also read good comments on Garmin 18 hardware but it is so cheap I wonder if it precise enough. I wonder if we should buy a specific box or if we could not plug the antenna to a linux box with gpsd/NTPd on it ? Any advice ? Best regards Matt Nb: the FOSDEM talks did a good job advertising your mailing list :) _______________________________________________ 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.