ii. Select
On
to display the CPA graphic while
the target is being tracked.
iii. Select
Off
to hide the CPA graphic.
3. To display course and bearing information
alongside to the target select
MARPA Data
so
that Show is highlighted.
i.
Selecting MARPA Data will switch between
Show and Hide.
Viewing full MARPA target information
From the radar application:
1. Select
Menu
.
2. Select
Targets
.
3. Select
View Target Lists
.
4. Select
View MARPA List
.
5. Select the relevant target.
21.7 Distances, range, and bearing
When you are using the radar application, you can
measure distances, ranges and bearings in a variety
of ways.
These options are detailed in the table below:
Functions
Distances
Between
Points
Range
From Your
Vessel
Bearings
Range Rings
Yes (approx-
imate dis-
tance)
Yes (approx-
imate range)
No
Cursor
No
Yes
Yes
Variable
Range
Markers /
Electronic
Bearing Lines
(VRM/EBL)
No
Yes
Yes
Floating
VRM/EBL
Yes
No
Yes
Measuring using the range rings
Use the range rings to gauge the approximate
distances between points. Range rings are
concentric circles displayed on the screen and
centred from your vessel at pre-set distances. The
number and spacing of the rings changes as you
range in and out.
Examples:
D
12214-1
D
12215-1
D
12216-1
Range — 1/4 nm
Range Rings —
760ft apart
Range — 3/4 nm
Range Rings —
1/4 nm apart
Range — 1 1/2 nm
Range Rings —
1/4 nm apart
Measuring using the cursor
To measure the bearing and range from your
vessel to a specified target, move the cursor to the
appropriate position on the screen and press
Ok
,
the radar context menu will be displayed which shall
provide:
• Latitude
• Longitude
• Range
• Bearing
D12217-2
1
2
310
gS Series
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