Spectra Precision Survey Pro v4.5 Recon and Nomad Reference Manual - Manual (Page 139)

Survey Menu
R-131
Vertical Angle Offset
Survey Vertical Angle Offset .
The Vertical Angle Offset screen allows you to compute and store the
location of a new point that exists directly above or below the rod
location, but cannot be occupied, such as the top of a utility pole.
The new point will have the same coordinates as the rod location, but
with a different elevation.
Foresight: is the point name that will be used when
storing the new point.
Description: is the description for the offset shot that is
stored.
Shoot Prism : will take a shot to the prism.
Aim Zenith : will read the vertical angle measured by the
total station, which should be facing the new point’s
location.
Backsight… : accesses the Backsight Setup screen (Page
R-114).
: is a shortcut to the Surveying Settings screen (Page
R-44).