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New To eTrex 30

Former Member
Former Member
Hi To All and thanks beforehand. I just got an eTrex 30, have no experience in anything like it and have a couple of questions about it. One is how do I get the map Garmin shows on all of the literature about the eTrex series of hand held GPS’s? Is it on the unit right straight out of the box or do you have to down load it? How do you calibrate the altimeter or elevation setting? Mine shows me about 40’ higher than I really am and does not always give the same elevation at the same place on different days. It says the thing has a barometric system but daily changes in pressure shouldn’t give me the differences in elevation it shows. Is there somewhere out there a better set of instructions than what comes off of the net? Thanks for your help.