OhioDronePerson
lvl.3
Flight distance : 306552 ft
United States
Offline
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I tried using the D-RTK today for the first time. When I got to the part where I enter the known point's coordinates, I had trouble with the elevation. It was given to me in NAVD88. When I entered my elevation into the RC, it wouldn't accept it as it was around 100' off. I needed to get moving so I just flew the missions, letting the D-RTK decide its own elevation.
I've been working slowly for over a month trying to understand ellipsoidal vs. orthometric height, along with the geoid. I believe I understand the equation H=h-N. I am guessing the D-RTK wants the elevation entered in ellipsoidal height? Is the surveyed height I was given (NAVD88) the same as Orthometric height?
Incidentally, the geoid height at my location is -98.78', which would have made perfect sense.
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