Re: Property lines survey or gps?

Posted by sshev on October 20, 2006 at 04:58:20 from (206.72.54.238):

In Reply to: Re: Property lines survey or gps? posted by cannonball on October 20, 2006 at 03:45:45:

no you don't "loose" any land measuring with GPS. as I said Global Positioning is mearly a newer method of measurement. Surveyors have always used "plumb" or level distances in there measurements, not along the surface of the ground if there were significant elevation changes. When measuring by hand was replaced by electronic total stations which use infrared light reflected off of a prism to measure distance, the instrument also measured vertical angles and corrected internally for horizontal distance.
Scott

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