When connected to an external AIS device, the chartplotter can
show some AIS information about other vessels that are within
range, equipped with a transponder, and are actively
transmitting AIS information. The information reported for each
vessel includes the Maritime Mobile Service Identity (MMSI),
location, GPS speed, GPS heading, time that has elapsed since
the last position of the vessel was reported, nearest approach,
and time to the nearest approach.
The AIS Radar screen provides a pictorial representation of the
AIS vessels around you, similar to a radar display, and a list of
those vessels.
À
Bearing ring
Á
Target in the safe range
Â
Active target
Ã
Active target Maritime Mobile Service Identity (MMSI) and details
Ä
AIS targets list
Å
Range
Adjusting the AIS Radar Range
• Select to decrease the range.
• Select to increase the range.
Marking a Waypoint on the AIS Radar Screen
1
From the
AIS Radar
screen, use the arrow keys to select a
location.
2
Select
MARK
.
Viewing a List of AIS Threats
From the AIS Radar screen, you can view and customize the
appearance of a list of AIS threats.
From the
AIS Radar
screen, select
MENU
>
AIS List
.
Customizing the Display of the AIS Radar
Screen
You can configure how other vessels appear on the AIS Radar
screen.
1
From the
AIS Radar
screen, select
MENU
>
AIS Display
Setup
.
2
Select an option:
• To set the maximum distance of AIS vessels to display,
select
AIS Display Max. Range
.
• To set the minimum speed of AIS vessels to display,
select
AIS Display Min. Speed
.
• To show details about AIS-activated vessels, select
Details
>
Show
.
• To set the projected heading time for AIS-activated
vessels, select
Projected Heading
.
• To show the tracks of AIS-activated vessels, select
Trails
.
• To show the outlines of AIS vessels, select
Vessel
Outline
.
Creating an AIS Group
An AIS group is a collection of specific vessels, such as a sailing
club or flotilla.
1
From the
AIS Radar
screen, select
MENU
>
AIS Group
.
2
Select a group.
3
Select AIS vessels.
4
Select
SELECT
.
Enabling AIS Transmission Test Alerts
To avoid a large number of test alerts and symbols in crowded
areas such as marinas, you can select to receive or ignore AIS
test messages. To test an AIS emergency device, you must
enable the chartplotter to receive test alerts.
1
From the
AIS Radar
screen, select
MENU
>
AIS Alarm
.
2
Select an option:
• To receive or ignore Emergency Position Indicating Radio
Beacon (EPRIB) test signals, select
AIS-EPIRB Test
.
• To receive or ignore Man Overboard (MOB) test signals,
select
AIS-MOB Test
.
• To receive or ignore Search and Rescue Transponder
(SART) test signals, select
AIS-SART Test
.
Setting the Safe-Zone Collision Alarm
The safe-zone collision alarm is used only with AIS. The safe
zone is used for collision avoidance, and can be customized.
1
From the
AIS Radar
screen, select
MENU
>
AIS Alarm
.
2
Select
AIS Alarm
>
On
.
When the AIS alarm is turned off, the message banner and
audible alarm are disabled, but the object is still labeled as
dangerous on the screen.
3
Select
Range
.
4
Select a distance for the safe-zone radius around your
vessel.
5
Select
Time To
.
6
Select a time at which the alarm will sound if a target is
determined to intersect the safe zone.
For example, to be notified of a pending intersection 10
minutes before it will likely occur, set Time To to 10, and the
alarm will sound 10 minutes before the vessel intersects the
safe zone.
A message banner appears and an alarm sounds when an AIS-
activated vessel enters the safe-zone area around your boat.
The object is also labeled as dangerous on the screen. When
the alarm is off, the message banner and audible alarm are
disabled, but the object is still labeled as dangerous on the
screen.
VRM and EBL
The variable range marker (VRM) and the electronic bearing line
(EBL) measure the distance and bearing from your boat to a
target object. On the Radar screen, the VRM appears as a circle
that is centered on the present location of your boat, and the
EBL appears as a line that begins at the present location of your
boat and intersects the VRM. The point of intersection is the
target of the VRM and the EBL.
Showing the VRM and EBL
From the
AIS Radar
screen, select
MENU
>
Show VRM/
EBL
.
10
AIS Radar
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