David Taylor wrote: > I see the same effect on my GPS 18x LVC with the 3.50 firmware. > Have you reported this to Garmin?
No I haven't reported this to Garmin, at first I just wanted to find out if "my" GPS was at fault or was this common across any 18x. The reason it caught me out, is that I had changed to version 3.30 (where it also delays NMEA) on the 27th Sep 2010, and it took a couple of months to manifest as a problem. It was the "rising of the sap" in my trees combined with windy weather - which pushed the NMEA into the next second for my application. Luckily I kept all the 18x firmware versions David, so I could simply reload the firmware that completed the NMEA sentences well before the next PPS. > To me it's unacceptable that the NMEA output is delayed into the next PPS > signal, making the unit much less useful. I measure the NMEA output and > it's not even a consistent distance delayed from the PPS, varying quite a > bit. Yes, that is why it got tricky for me David, because sometimes the GPS gave the correct UTC time, and sometimes the UTC time was one second slow - depending on how much the NMEA sentences were delayed from the PPS. Regards, Kiwi Geoff (NZ). _______________________________________________ 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.
