Chapter 8: Using the Radar (Digital)
195
Relative motion (RM) with optional vessel offset
When the motion mode is set to Relative, the position of your boat is fixed on the
screen and all the targets move relative to the boat.
You can specify whether the boat is fixed in the centre of the window (0 offset) or
offset by 1/3 or 2/3:
The default vessel-offset value is zero.
True Motion (TM)
When the motion mode is set to True, fixed radar targets maintain a constant
position and moving vessels (including your boat) travel in true perspective to each
other and to fixed landmasses on the screen. As the boat’s position approaches the
edge of the screen, the radar picture is automatically reset to reveal the area ahead
of the boat.
If heading and position data become unavailable when true motion is selected: a
warning message is shown; the display reverts to relative motion; the status bar
indicates that True Motion is selected but suspended by showing it in parentheses
(TM).
It is not possible to select True Motion when the orientation is set to Head Up.
To set the motion mode
1. Press the
PRESENTATION
softkey.
2. Press
RADAR MODE AND ORIENTATION
.
3. Toggle between True and Relative Motion on the
MOTION MODE
key.
To change the vessel offset
1. Press the
PRESENTATION
softkey.
2. Press
RADAR MODE & ORIENTATION
.
3. Toggle to your desired offset using the
VESSEL OFFSET
softkey.
D6842-2
0 offset
2
/
3
offset
1
/
3
offset
81244_4.book Page 195 Thursday, January 31, 2008 1:53 PM
