Join Date: Feb 2001
Location: Northeast Wisconsin
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You might try downloading the manual and then doing the search for words or combinations of words to disable the compass. The compass decreases battery life by almost 50%. I often us my GPS 12 get the boat headed in the right direction and once that happens I use the old compass to steer and turn off the GPS.
Next Milwuakee GPS Seminar is Jne12th see it at usps.org/lc/door/gps.html