Hi, I am attempting to setup a new time server using GPS synchronized time on a Windows XP SP3 box. I started by installing the Meinburg NTP package, which I then updated with Dave Hart's NTP code, and then I put Dave Harts PPS dll on. It appears to be working, however I wanted some input to verify that my NTP.conf file is correct.
Here are my objectives: 1) The GPS and PPS signals are coming in on COM1, this seems to be working fine. 2) I ALWAYS want to serve out time, even if it has to be the PC Clock. 3) I want the priority of syncing NTP to be: 1 - PPS synchronized 2 - GPS synchronized 3 - PC Clock. Does the following NTP.conf do this correctly? One questions is if the prefer should be on the PPS or GPS line. # NTP Network Time Protocol # **** ATTENTION ****: *You have to restart the NTP service when you change this file to activate the changes* # PLEASE CHECK THIS FILE CAREFULLY AND MODIFY IT IF REQUIRED # Configuration File created by Windows Binary Distribution Installer Rev.: 1.26 mbg # please check http://www.ntp.org for additional documentation and background information # Use drift file driftfile "C:\Program Files\NTP\etc\ntp.drift" # your local system clock, could be used as a backup # (this is only useful if you need to distribute time no matter how good or bad it is) server 127.127.1.0 # but it should operate at a high stratum level to let the clients know and force them to # use any other timesource they may have. fudge 127.127.1.0 stratum 5 pps 127.127.22.1 stratum 1 gps 127.127.20.1 stratum 2 #refclock servers server 127.127.22.1 minpoll 4 # Atom - serialpps.sys server 127.127.20.1 minpoll 4 prefer # NMEA serial port # Statistics collection enable stats statsdir "C:\Program Files\NTP\etc\" statistics loopstats Thanks for your help. _______________________________________________ questions mailing list questions@lists.ntp.org http://lists.ntp.org/listinfo/questions