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Saranac, Michigan | As kind of a backup to the RTK vs RTK/atitude correction debate. we have done a lot of high resolution work for a large power company. Part of the specs were that there could be no error greater than .1 ft. anywhere on a coalpile. The power company had us run a test using GPS with inclinometers against GPS with just our software tilt correction. The test determined that usually the tilt correction fell on the surface somewhere between the tires and the error just met the slope at a slightly different point. I don't remember the exact numbers, but it was less that .1. Obviously the more slope or the need for higher accuracy would be different. However we have not seen the need to compensate slope for field topos and quite often turn off the atitude correction on GPS receivers to get better elevation data. That too could be debated, it just works better for us and most of our topos need to be less than .05 error
Of course this was for surface topo and not for steering which is a whole different animal | |
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