In article <[EMAIL PROTECTED]>, "DJ" <[EMAIL PROTECTED]> wrote:
> use of fudge time1 I can get my ntpd to act as a stratum 0 server and You mean stratum 1. A value of 0 indicates unsynchronised. The reference clock will be stratum zero, but the NTP protocol will report statum 1. > will track pool ntp servers to within 100ms drift . I wish to improve > the precision/accuracy and would like to use the PPS kernel/drivers. Is > this possible with a simple NMEA device i.e. does the PPS kernel patch > give a better stability or do I need a PPS gps clock ? You require a time transfer receiver. Your problems are not fundamental to NMEA, but navigation receivers will generally not pay attention to accurate timing of the time messages and even time transfer receivers may assume that their PPS output is accurate, so the NMEA doesn't need to be. I don't know if there are any time transfer receivers without PPS, although, if there are, they would, presumably have low jitter NMEA outputs. The ntpd PPS code is of no benefit unless the receiver generates an accurate PPS signal. _______________________________________________ questions mailing list [email protected] https://lists.ntp.isc.org/mailman/listinfo/questions
