Join Date: Dec 2012
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Re: GPS Accuracy - how much is actually needed
Yes, mount an external sensor.
Here's the deal. I'd never navigate per the charts. So accuracy is not that big of a deal. The charts don't match reallty.
But; once you establish way points to all the places you go. It pays to hit them accurately. 40' could be HUGE. Could be BIG rock or open channel. That's why you want accuracy.