Spectra Precision Survey Pro v4.5 Recon and Nomad User Manual - Manual (Page 148)

User’s Manual – Conventional Mode
138
1. From the Main Menu, tap . Survey , Horz Angle
Offset . If you have not already setup your backsight,
you will need to do so before the Horizontal Angle
Offset Shot screen will open.
2. The rod person should position the prism to the side
of the location of the new point so that the angle
formed by the new point, the prism, and total station
form 90°. (See illustration.)
3. With the total station aimed toward the new point,
tap the Aim Center button. Only the horizontal
angle is measure during this shot so a prism does not
need to be used.
4. Aim the total station toward the prism located at the
side of the new point and tap Shoot Prism . The new
point will be stored as a side shot.
Note: The center shot and the prism shot can be taken in either
order.
Vertical Angle Offset Screen
The Vertical Angle Offset screen is used to store a new point
that is located directly above, or directly below the rod location.
The routine requires two shots by the total station, one at the
prism, and one in the direction of the new point.
This example explains how to store a point that is located above
the rod – such as at the top of a utility pole.
1. From the Main Menu, tap . Survey , Vert Angle Offset . If you
have not already setup your backsight, you will need to do so
before the Horizontal Angle Offset Shot screen will open.