Spectra Precision Survey Pro v4.5 Recon and Nomad Reference Manual - Manual (Page 259)

Survey Menu – Basic GPS Module
R-251
Control Points
Survey Control Points . or
Data Collection Control .
The Control Points screen is used to measure GPS control points to
use in the localization adjustment, or to check the location of exiting
points against GPS measurements and the latest coordinate system.
This screen is described on Page R-192.
Check Control Point Screen
Survey Control Points Check Point . or
Data Collection Control Check Point .
The Check Control Point screen is used to check a control point. This
is done when you want to verify the quality of the coordinate system
solution and is described on Page R-193.
Occupy Control Point Screen
Survey Control Points Control . or
Data Collection Control Control .
The Occupy Control Point screen is used to add geodetic coordinates
to a known project point. The most common use of this screen is to
measure control points for the localization solution and is described
on Page R-194.