On the point stake out or line stake out do we have to use the Antenna height if we don’t know what it is?

If you are only concerned with the horizontal position, the antenna height does not come into play. In any case, GIS-grade GPS receivers do not provide good accuracy in the vertical direction.

Unless your GPS system uses an external antenna, the antenna height is the distance from your GPS receiver to the ground. As the position is recorded at the GPS receiver, if you enter an antenna height, this value will be subtracted from the recorded elevation to bring it down to the ground level.


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