Roozbeh Pournader <roozbeh <at> gmail.com> writes: >Is GPSMAP 60Cx still the OSM GPS to get?
A 'high sensitivity' GPS receiver is a good thing but this is not the only one available. <http://gpstracklog.typepad.com/gps_tracklog/2007/08/mediatek-gps-ch.html> is a comparison of GPS accuracy in this unit against the eTrex Vista / Legend units which use a different chipset but are also marketed by Garmin as 'high sensitivitiy'. >Is there any OSM-related reason to try to get a 60CSx (the version >that has the electronic compass and barometric altimeter)? A compass sounds like it would be useful for OSM mapping. You could see which way you're facing and check you are walking in the right direction even when GPS reception is weak. However, my experience with the electronic compass in Garmin's Vista HCx unit has been disappointing. It doesn't seem to work accurately unless the unit is held exactly horizontal, and even then it can still be wrong. A compass that points the wrong way some of the time is no use at all. In the end I turned it off to save battery. Garmin units don't have any official support for Linux but they do work with gpsbabel. On the more upmarket units like the one you mention, you can load OSM maps such as those available at <http://downloads.cloudmade.com/>. But the display quality is pretty basic; if you're expecting beautifully rendered Maptik tiles to appear on your GPS's colour screen you will be disappointed. Viewing the map on the device is useful but I still find it necessary to print a paper copy of the no-names map for the area I'm about to visit. (I wonder if <http://wiki.openstreetmap.org/wiki/GroundTruth> would give better results?) -- Ed Avis <e...@waniasset.com> _______________________________________________ talk mailing list talk@openstreetmap.org http://lists.openstreetmap.org/listinfo/talk