"John Tyson" <johnatyson@earthlink.net> wrote in
news:ikbgf.3546$N45.1678@newsread1.news.atl.earthlink.net...
From my own experience the original Vista did not time stamp waypoints,
but the 60 and 76 series do. I woud guess that all of the Garmin units
that have come out in the last couple of years do.
this is the date/time history as far as I got it:
Very old Garmins (like the GPS45) had waypoint names with 6 characters only,
and a waypoint comment field with 16 characters. When marking a waypoint,
they put the date/time into the comment field. In addition, they had an
undocumented data field in the communication protocol, with the date/time in
it, independent of the comment field.
Next Garmins (like the GPS12) had the same name and comment fields with
date/time, but the additional undocumented date/time field was gone.
Then (perhaps beginning with the Etrex series) the waypoint names increased
to 10 characters, and the comment field went away. I guess that Mr. Garmin
thought that 10 characters are enough to identify a waypoint. No more
date/time now.
But now the whole story begins to wrap back:
The 60 and 76 series got back the waypoint comment field with date/time.
And, most recently, there is a new transfer protocol (used by the 276C, at
least) which got back the additional date/time field which is independent of
the comment field.
But another thing remains inconsistent: some Garmins write the date/time as
UTC time, while others write the local time.
--
Heinrich
http://www.gartrip.demail: new<at>gartrip.de