On Sat, Jan 2, 2010 at 12:54 AM, Shaun McDonald <[email protected]>wrote:
> It is very common for GPSs to give errors for whatever reason. Interference > is very common from things like buildings. Newer units are less likely to > have an issue. You simply need to go along that track again a few times to > get an averaged out reading. > Well...ok. But in this case I have the aerial photography, so I can just trace it, once I know more or less where the path goes. I was just curious if there was a way to detect errors at the time - repeating every trace several times "just in case" would be pretty inefficient. Anyway, I'll try SLXViper's suggestion. Steve
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