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No. You can get maps from OpenStreetMaps at http://garmin.openstreetmap.nl/. These maps are free (Contributions accepted) and are very good except for remote areas. The downloaded maps can be used on PCs or MACs (different files downloaded). Best to go for the 'new' maps where more than one can be loaded on the Garmin simultaneously
Yes, both the eTrex 20 and 30 have WAAS capability, though it is set to OFF in the system settings by default. However, the Garmin web site states that coverage is only available in North America at present. As to accuracy, here in Northern England I find that with GLONASS enabled (Russian GPS, not mentioned in the manual for some reason), in practice it is within a few metres unless the view of the sky is badly obstructed by solid objects such as buildings or terrain. Basically, it's as accurate as anyone could possibly need except perhaps for surveying purposes!
I have several GPX Files on my computer, can these GPX Files be downloaded from my computer onto the Garmin etrex 30 25 Dec 2014
Yes. The Etrex 30 accepts gpx files via USB cable.
can i download routes from memory maps ? 16 Feb 2015
Yes, I do this all the time, although I do it from MM 'tracks' rather than 'routes.' Connect your GPS device to your PC, then on Memory Map 'right click' on the track in question, then 'Save as' and save the file as a gpx file in the Garmin/gpx folder. You can also do this in reverse when you have saved a recorded track on your eTrex 20 GPS in the field: Connect your gps to your PC, when the GPS folders appear on the PC screen, go to the Garmin/gpx folder, find your saved track and simply click on its file. Memory Map will open and your track will appear.
I do not know as I have never managed to use my set. But I assume that this question is easily answered on the Garmin Site at the customer care page or the technical assistance page.
I would think not, that is something that needs working out from a map and your location.
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