Yes, I think you are correct except in one case. The NMEA offset may very well be mostly because the NMEA sentence is actually "off". Such sentences may be as much as a full second "off". First the NMEA standard requires only one second accuracy and also the sentence is sent over a slow serial link along with other data and when you get it depends a lot on what they "other data" is. This is the reason the GPS has a PPS. NMEA was invented for ship navigation, not timing.
On Tue, Oct 11, 2016 at 10:09 AM, Thomas Valerio <[email protected]> wrote: > I was going to post my ntp output and ask for an opinion, then this > discussion popped up. It would appear that asymmetric delays are the > exact explanation for what I am seeing. -- Chris Albertson Redondo Beach, California _______________________________________________ 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.
