NorthStar 961 Reference Manual page 219

Understanding the
steering screen
displays
961/962 Operations and Reference Manual, Rev. A
Cross-track error (XTE)
The lower part of either steering screen displays XTE using
your vessel's symbol to illustrate distance from the black
course line. XTE is the distance between your position and
your course line; that is, how far off you are from your
intended course line. XTE is displayed both numerically and
graphically.
You can set the XTE to be displayed in meters or feet, instead of
fractions of kilometers, miles, or nautical miles, as long as there is
an active waypoint and you've set the
DISPLAY SETUP
the
On the 3-D STEER screen, the yellow dashed lines on either
side of the black course line represent the maximum distance
your vessel can travel from the course line before the
cross-track alarm sounds. To set the distance for this alarm,
see "Changing alarm settings" starting on page 12-9.
In addition, the orientation of your black vessel symbol
indicates the direction you're actually travelling (which may
not be the same as your heading if any current or wind is
present):
• when the black vessel points parallel to the course line,
you're keeping a constant distance from the line
• when the black vessel points away from the course line,
you're moving farther from the line
• when the black vessel points toward the course line,
you're moving closer to the line
When XTE exceeds the scale, the black vessel symbol flashes.
To set the XTE distance, see "Cross-track error scale" starting
on page 13-3.
Distance and bearing
The system displays distance and bearing from your vessel's
position to the waypoint.
Chapter 10 - Waypoint and Route Navigation
NOTE:
DIST PRECISION
HIGH
screen to .
option on
Page 10-5