Question about Garmin eTrex Legend GPS Receiver
You can get geological maps with lattitudes and longitudes, and find a location that meets a crossing criteria, and I think there are provisions in Google Earth that can supply that information. When you can identify a point of intersection, then a longitudinal or lattitudinal line, go there and see what the gps says, and you will have your margin of error. Typically, they're good to within 20 or 30 feet, I've heard.
Hope I've answered your question.
Posted on Sep 21, 2010
That thing is accurate to within something like 3-5 meters? And speed accuracy to within 15 fps. I don't think you can go wrong with one, it is going true. I have an old handheld and it is so exact, it is frightening. They know where they are. As far as magnetic north goes, if you are heading to the north pole, it might be off a hair, but for down here, it is exact. Most roads are set up north, south east, etc, If you follow a road in a straight line, it should read the same degrees all the way. The GPS is more accurate than the survey that built the road. Hope this helps.
Posted on Sep 19, 2010
All readings are taken the grenwich meridan which is the same as the time zones ,for east and west and the equater for the north and south reading ,as far as i know ,so where ever you are you are at a reading from them settings .
Posted on Sep 19, 2010
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Posted on Jan 02, 2017
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