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I have found that when using TS with GPS it is best to select Earth Curvature as a part of the user experience.
I still utilize both systems.
For the past six years, everything is in State Plane Coordinates for initial work. I do a lot of GPS rural surveys in Northeast Mississippi, and it really does help to have the USPLSS ties in the SPCS. When I get through with the preliminary survey, I use Survey Pro to project to a local coordinate system 10,000/10,000 using ground distances. I then use the convergence angle and rotate to geodetic north. I am working near the CM of the local zone, so my CA typically varies around plus or minus about 9 minutes I am also working under the assumption that almost all of the previous surveys have utilized true north as determined by some method or means, and I need to retrace those as best I can, even the USPLSS lines. At least, this method narrows down to where I need to look for established corners. Deed plots can be overlaid on common points, and rotated/matched to the best fit, and the new survey corners and boundary can be worked out. I then rotate back to grid north, upload the coordinates into Survey Pro, and go find or set the corners. All data collected after the initial survey will be local/State Plane, and can be used “down the road.” If I happen to be near an old survey of mine, I simply import the coordinates, tie to some of my old control points or corners set, and match up as best I can by using the mapping plane ground best fit function. I can then do stake-out to either get good coordinates or confirm the coordinates on critical points. All of my final data is stored in the SPCS, and is “re-usable.” For ALTA and high-class surveys, I create one initial point and one backsight point using GPS, then create the mapping plane ground on a local coordinate system. I then switch to a total station, and Survey Pro will collect data in the local system with the ability to project to the SPCS if needed.
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