Spectra Precision FAST Survey Reference Manual - Manual (Page 130)

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In this example, we would add points 3 and 4. Note that for point 4, a target height of 2 meters will be used, and the
slope distance reading and elevation of point 4 will also be used in the calculation.
When distance measurements are involved, the prism offset can be entered distinctly for each measurement.
When the entire list of targets has been entered, you then select the target to measure first (eg. point ID 2) and then tap
"Measure".