Accuracy of GPS units is pretty much dictated by the sensitivity of the antenna, the number of satellites acquired, and the time you dwell at each point. All the handhelds use pretty much the same small patch antenna, and will have similar accuracy. That accuracy, for area measurement, is much better than the accuracy they display. The displayed accuracy is an absolute value, and what matters for acreage and distance measuring is the relative value. Just about any handheld will be more than adequate for anything short of a legal survey. If you need better, get a handheld that has an external antenna input connection, and buy or rent a good antenna. Antennas can get pretty pricey, though. Expect a good surveyor quality antenna to be up in the high hundreds or even thousands of dollars.
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Today's Featured Article - When Push Comes to Shove - by Dave Patterson. When I was a “kid” (still am to a deree) about two I guess, my parents couldn’t find me one day. They were horrified (we lived by the railroad), my mother thought the worst: "He’s been run over by a train, he’s gone forever!" Where did they find me? Perched up on the seat of the tractor. I’d probably plowed about 3000 acres (in my head anyway) by the time they found me. This is where my love for tractors started and has only gotten worse in my tender 50 yrs on this “green planet”. I’m par
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