Check the Arbiter for anomalous "Cable Delay" or "Clock Offset" settings. Maybe they accidentally got set to 9999999ns instead of zero.
Page 38 in this manual: http://www.arbiter.com/files/product-attachments/1084_manual.pdf Tim N3QE On Fri, Oct 14, 2016 at 8:31 PM, gmx tallahassee <[email protected]> wrote: > Hi all, > > I'm checking out the leontp ntp time server (leontp.com). After a week of > use I am getting the following ntp -q output: > > $ ntpq -pn > remote refid st t when poll reach delay offset > jitter > ============================================================ > ================== > *172.17.21.11 .GPS. 1 u 13 16 377 0.137 0.077 > 0.054 <- Arbiter 1084C GPS Clock > +172.17.21.12 .GPS. 1 u 11 16 377 0.101 0.085 > 0.174 <- Arbiter 1084C GPS Clock > x172.17.21.233 .GPS. 1 u 11 16 377 0.071 9.760 > 0.061 <- LeoNTP > > the offset of the leontp device from the other clocks has consistently been > in the 9.5 -10.5 range. since I'm measuring all three sources from the > same (EL7) computer, I would expect that the offset of the leontp unit to > converge to be in the close neighborhood of the offsets of the arbiters. > It has not converged, instead maintaining the ~10ms offset. > > Thoughts? > > Thanks. > > Details: > > 172.17.21.11 is approx 400M away through two Cisco 3750G switches no > routing. > 172.17.21.12 is in the same rack as the leoNTP unit and plugged into the > same 3750G switch > > Antenna location for the .12 arbiter and the leontp is on the same rung of > the same tower. Tower has clear horizon to horizon view. cable runs are > the same (obviously). > > I did run with the included puck in my south facing office window (rather > than the GPS antenna on the tower) for a couple of days when I first got > the unit. The offset behaviour was the same. > _______________________________________________ > 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.
