I was looking at the eTrex series from Garmin to use for mapping on OSM,
as they seem to be robust, compact and have specially long battery life
(25 hours on 2 AA batteries). The main difference between 20 and 30
seems to be that 30 has altimeter and compass, while 20 doesn't have
them. Is this important when recording GPS tracks to use for mapping on
OSM? Doesn't compass and altitude data come from GPS satellites anyway?
Or an internal altimeter and compass are more accurate?
If anybody here has either of the above GPS units and uses them for
mapping, it would be useful to hear a first hand opinion.
Thanks,
Sebastian
_______________________________________________
newbies mailing list
[email protected]
http://lists.openstreetmap.org/listinfo/newbies
