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8.1 Angle Offset Mode
It is specifically adequate when facing difficulties setting
up prism. E.g. in the center of a tree. Set up the prism at point P
which is the same horizontal distance away from the instrument
as A0 is from the that. The diagram for angle offset is as
followed.
When measuring the coordinate of the earth point A1 of
the projection of AO, set up the instrument height and target
height.
When measuring the coordinate of AO, set up instrument
height only (and the target height should be set to 0). Enter
„1.Offset (Angle)‟ and the page is as followed: