Originally Posted by
Wanderer
You have got to be kidding - that GPS makes it's calculations, like 3 times a second. It's not averaging, or cutting corners, on anything.
Other than changes due to national (and military) security, it's as accurate as things can be!
Well, given that the on-screen error indication doubles (like, goes from 12 feet to 25 feet) when I'm just walking around, until I stand still for a few seconds, I figured it was worth thinking about.
It also matters a lot what the weather and sky visibility is. On a clear day in the country, you can get 8 foot accuracy while moving. On a day with weather systems on the move, it can go to 15 to 20 feet. With cover from either trees or buildings, sometimes I'm lucky to get 30 feet. On bad days, I can stand in one place and my icon will move around 50 feet as long as I stand there. I bet I could register 10 miles of travel on those days with the GPS sitting on a park bench.