Spectra Precision Survey Pro v4.6 Recon and Nomad User Manual - Manual (Page 157)

Other Tutorials
147
Shoot From Two Ends
The Shoot From Two Ends screen is used to provide more
accurate vertical closure to a traverse. The routine requires
that after the foresight is shot, its location is not computed
until after the foresight point is occupied and a second shot is
taken to the previous occupy point. Once the second shot is
complete, the coordinates for the original foresight are
computed from an average of both shots.
1. From the Main Menu, select Survey , Shoot From 2 Ends .
If you have not already setup your backsight, you will need
to do so before the Shoot From Two Ends screen will open.
2. Fill in the screen, including the number of sets that
you want to shoot from each point in the Number of
Sets field.
3. Tap Traverse , aim toward the backsight and tap
Take Shot .
4. Shoot the specified number of sets to the backsight
and foresight. When finished, the Move To Other
End dialog box will open, shown here. At this point
you need to move the total station over the current
foresight point, place a prism over the current occupy
point, fill in the dialog and tap . A new screen will
open.
5. Aim at the prism located over the previous occupy
point and tap Take Shot . You will then need to
shoot the specified number of sets to the previous occupy point.
When the final set is complete, a screen will inform you of your new
occupy and backsight point and the new point will be computed and
stored.
Shot 2 Shot 1
BS