William Unruh <un...@invalid.ca> wrote: > The problem is not the electronics, it is the response of the system to > the interrupt. That interrupt processing time is in the usec range.
This does not really matter when it is constant. And my experience is that the jitter on the PPS refclock is usually 0, 1 or 2us when I check it. On a newer server that has just been configured for this task it is the same: remote refid st t when poll reach delay offset jitter ============================================================================== oPPS(0) .PPS. 0 l 16 16 377 0.000 -0.001 0.001 (the GPSDO is still synchronizing, things may be even better after that) _______________________________________________ questions mailing list questions@lists.ntp.org http://lists.ntp.org/listinfo/questions