NorthStar 951X Operator's Manual page 82

Chapter 5 - Determining Position Coordinates
Returning to GPS
navigation
Page 72
to improve the accuracy of the received data. On the 3D STEER
screen on the 952, this D is green.
To return to GPS signals for navigation, repeat the steps in
"Selecting Phantom Loran" on page 70, except specify GPS
instead of Phantom Loran.
To learn how to navigate to loran, Phantom Loran, or GPS
coordinates, see "Steering to a waypoint" starting on page 118.
951/952 Operator's Manual Rev. B