Chapter 8: Using the Radar (Digital) 191
8.5 Radar window overview
Your position
By default your boat is shown at the centre of the radar display and your dead-
ahead bearing is indicated by a vertical line known as the Ship’s Heading Marker
(SHM).
Operation modes
The radar gives excellent results in one of the four preconfigured operation modes
under the GAIN softkey. Select the mode that best suits your circumstances:
attempting to make manual adjustments to the settings could degrade your image.
(However, this facility is available.)
See
page 197
for more information.
Other vessels or objects
On-screen targets may be large, small, bright or faint, depending on the size of the
object, its orientation and surface type.
Remember that the strength of an object’s echo may not be proportional to the
physical size of the object. For example, a nearby object might produce an echo of
the same strength as a more distant, but larger object.
With experience, the approximate size of different objects can be determined by the
relative size and brightness of the echoes.
D10700-1
Dual
range
indicator
Radar
status
Icons
Ships
heading
marker
Land mass
AIS
target
Data bar
Ships
position
Range ring
Range
ring
seperation
Motion
mode
Orientation
Pre-set
mode
Radar
range
81244_4.book Page 191 Thursday, January 31, 2008 1:53 PM
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