Appendix A-4 CA34/44/54 Glossary of terms
screen, the bearing and distance from ship’s position to cursor position will be
displayed in the top line of the screen. To turn off the cursor, press CLR.
When heading and valid position data is available, the chart cursor will be
synchronized to the radar cursor, and thus be controlled by the radar cursor in
the Radar & Chart display.
HU – Head-Up The heading line always appears on the display at 0 degrees
as the antenna beam passes the bow of the vessel. Targets appearing on the
display are relative to your own ship’s position and heading.
NU – North-Up
In this mode, targets are displayed at their measured distances
in true direction from your boat. North being at the top of the display. To oper-
ate in North-Up mode will require valid heading from connected compass.
Off-Center mode - lets you position the origin of own ship to any point on the
screen within 66% of the radius of the display (the center 2/3 of the display).
The Off-Center mode permits the operator to obtain a longer view in the
direction of interest.
Overlay - live radar images shown in a separate layer directly on the chart
gives you full control in difficult situations. To activate the overlay will
require the following conditions: Valid position, valid heading information,
and Radar orientation mode must be in NU RM (North Up, Relative Motion)
or NU TM (North up, True Motion).
Short press on the [RADAR] key will toggle overlay on/off.
In HU RM (Head Up, Relative Motion) mode and in the Radar & Chart dis-
play, the overlay is disabled.
PLOT function – will require that a heading sensor (Gyro or Compass) is
connected to the CAXX. If so, then you can plot the actual cursor position
on the radar display by pressing the [PLOT] key from the radar display, and
thereby save the position in the WP-list as a waypoint i.e. you can give the
plotted waypoint a new name/number, symbol, color, etc.
Relative motion Land, buoys and fixed objects move past own ship.
True motion – land, buoys and fixed objects remain stationary on the screen
while moving targets and own ship track across screen.
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