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Posted by John Lawrence on December 14, 2005, 7:36 pm


I am looking for a GPS that will provide time arrival time at each waypoint,
and departure time at that waypoint.

Times along route would be great, but probably looking for to much there.

Any one know of any model which will provide that information

Thanks



Posted by peter on December 14, 2005, 9:21 pm


John Lawrence wrote:
> I am looking for a GPS that will provide time arrival time at each waypoint,
> and departure time at that waypoint.
> Times along route would be great, but probably looking for to much there.
> Any one know of any model which will provide that information

Most Garmin and Magellan models keep a tracklog (sometimes called a
"breadcrumb trail") of the path travelled which includes the lat.,
long., altitude, and date/time of each point along the way. Typically
around 2000 - 10000 such trackpoints can be recorded and you can choose
to have the unit record them based on fixed time or distance intervals
or to use the automatic mode where points are recorded more frequently
when the direction and/or speed are changing. This isn't quite the
same as recording times at waypoints, but the tracklog data should let
you determine that information.

Lowrance models also keep a tracklog but without the timestamps. A
work-around is to use a fixed time interval and record the starting
time of the tracklog.


Posted by dold on December 14, 2005, 11:34 pm


> Most Garmin and Magellan models keep a tracklog (sometimes called a
> "breadcrumb trail") of the path travelled which includes the lat.,
> long., altitude, and date/time of each point along the way. Typically

If you display the tracks and waypoints with a program like ExpertGPS, it is
relatively easy to realize which times match which waypoints. I'm not sure
what granularity is desired, or if this needs to be a standalone GPS
application, with no PC involved.

On a recent vacation, I marked waypoints wherever I took pictures. The
chronological order of the waypoints, matched against the track times and
the time information embedded in the digital photos provides pretty good
correlation.

I also enjoyed taking the "tour" with Google Earth, following my
trackpoints.

--
---
Clarence A Dold - Hidden Valley (Lake County) CA USA 38.8,-122.5


Posted by John La on December 18, 2005, 11:02 am


I have a Garmin GPSMap76, From what I can see it does not supply the time
information.

Can anyone tell me a model that will work?


>I am looking for a GPS that will provide time arrival time at each
>waypoint, and departure time at that waypoint.
> Times along route would be great, but probably looking for to much there.
> Any one know of any model which will provide that information
> Thanks
>



Posted by peter on December 18, 2005, 11:10 am


John La wrote:
> I have a Garmin GPSMap76, From what I can see it does not supply the time
> information.
> Can anyone tell me a model that will work?

The one you already have does record the time/datestamps in its "Active
Tracklog". Be sure you transfer the Active Tracklog directly to
whichever PC program you're using (MapSource, EasyGPS, G7toWIN, etc.)
and do *not* first 'Save' the tracklog on your GPS. Doing the latter
will compress the tracklog data into a smaller number of points and
delete the time and date information.


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