NorthStar 951X Operator's Manual page 129

Chapter 8 - Understanding Waypoint/Route Navigation
Both steering screens are intended to guide you precisely
Choosing a steering
along a course line that might follow a harbor channel, or a
screen
line between shoals and sandbars. You can use whichever
screen you prefer. Both steering screens show your cross-track
distance graphically at the bottom of the screen. (Cross-track
distance is the distance you're off from your intended course
line.) At the top of the display, both screens show numeric
navigation information in large digits.
The STEERING screen uses a traditional graphic display with
cross-track distance shown as how far the boat is from the cen-
ter line of the display. The 3D STEER screen is a waypoint
"heading-up" display showing the waypoints between you and
the destination waypoint, and your position relative to the
course line, for precision steering.
Both the STEERING and 3D STEER screens display your dis-
Displaying distance
tance and bearing to the waypoint, along with your
and bearing
Speed-Over-Ground and Course-Over-Ground. An arrow
between the SOG and COG displays points upwards when the
trend of your speed is increasing, and down when it's decreas-
ing.
951/952 Operator's Manual Rev. B Page 119