Quote Originally Posted by larry_arizona View Post
Do the GPS pucks ever go out of adjustment?

Reason I ask is when using map tracer function last year at a lake I know very well, I was grinding the same lake area I always run.

I mapped out a small area of stumps on the map and felt I was far enough away but prop ended up getting dinged on a submerged stump.

My question is, can a gps puck lose calibration and offset my map and marked hazards?


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It's possible that you just missed a submerged stump on your maps the first time. Or fluctuations in water level of a few inches, or ballast/crew/boat weight could make a difference in bumping one and not buming one. Or maybe it was a submerged floater drifting around. Though, I'm m not sure of how accurate the gps positioning of the maps software is either. 2-3 ft or what?

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