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Originally Posted by tashirosgt
Are you talking about absolute or relative errors? If we are talking about the location of of two points relative to each other ( and not about their absolute location relative to coordinates on the earth) does the relative location have a 10m std. error? In addition to my curiosity about crop circles, I'm thinking of getting a GPS unit to help plan the grading of my yard.
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Search for ‘differential GPS explained’ on Google. The 10 meter error is the absolute error the relative error is less than 1 meter. And if you do your work in a short amount of time; without a major change in atmosphere you would probably have a relative error of less than 30 cm.
There is nothing I know of in the GPS system that would end up giving you some kind of pattern.
As far as using a GPS to create crop circles; it would be a major task. As Nowhere Man say’s; some rope, pegs, boards and a good plan would be faster and easier.
Jim