When course over ground and heading information are provided
by an activated AIS target, but rate of turn information is not
provided, the projected course of the target is calculated based
on the course over ground information.
Showing AIS Vessels on a Chart or 3D Chart View
Before you can use AIS, you must connect the chartplotter to an
external AIS device and receive active transponder signals from
other vessels.
You can configure how other vessels appear on a chart or on a
3D chart view. The display range configured for one chart or
one 3D chart view are applied only to that chart or to that 3D
chart view. The details, projected heading, and trails settings
configured for one chart or one 3D chart view are applied to all
charts and to all 3D chart views.
1
From a chart or 3D chart view, select
Menu
>
Other Vessels
>
AIS Display Setup
.
2
Select an option:
• To indicate the distance from your location in which AIS
vessels appear, select
Display Range
, and select a
distance.
• To show details about AIS-activated vessels, select
Details
>
Show
.
• To set the projected heading time for AIS-activated
vessels, select
Projected Heading
, and enter the time.
• To show the tracks of AIS vessels, select
Trails
, and
select the length of the track that appears using a trail.
Activating a Target for an AIS Vessel
1
From a chart or a 3D chart view, select an AIS vessel.
2
Select
AIS Vessel
>
Activate Target
.
Viewing Information about a Targeted AIS Vessel
You can view the AIS signal status, MMSI, GPS speed, GPS
heading, and other information that is reported about a targeted
AIS vessel.
1
From a chart or a 3D chart view, select an AIS vessel.
2
Select
AIS Vessel
.
Deactivating a Target for an AIS Vessel
1
From a chart or a 3D chart view, select an AIS vessel.
2
Select
AIS Vessel
>
Deactivate
.
Viewing a List of AIS Threats
From a chart or 3D chart view, select
Menu
>
Other Vessels
>
AIS List
.
Setting the Safe-Zone Collision Alarm
Before you can set a safe-zone collision alarm, you must have a
compatible chartplotter connected to an AIS device.
The safe-zone collision alarm is used only with AIS. The safe
zone is used for collision avoidance, and can be customized.
1
Select
Settings
>
Alarms
>
AIS
>
AIS Alarm
>
On
.
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.
2
Select
Range
.
3
Select a distance for the safe-zone radius around your
vessel.
4
Select
Time To
.
5
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.
AIS Distress Signals
Self-contained AIS distress signal devices transmit emergency
position reports when activated. The chartplotter can receive
signals from Search and Rescue Transmitters (SART),
Emergency Position Indicating Radio Beacons (EPIRB), and
other man overboard signals. Distress signal transmissions are
different than standard AIS transmissions, so they appear
differently on the chartplotter. Instead of tracking a distress
signal transmission for collision avoidance, you track a distress
signal transmission to locate and assist a vessel or person.
Navigating to a Distress Signal Transmission
When you receive a distress signal transmission, a distress
signal alarm appears.
Select
Review
>
Go To
to begin navigation to the
transmission.
AIS Distress Signal Device Targeting Symbols
Symbol Description
AIS distress signal device transmission. Select to see more
information about the transmission and begin navigation.
Transmission lost.
Transmission test. Appears when a vessel initiates a test of
their distress signal device, and does not represent a true
emergency.
Transmission test lost.
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
Select
Settings
>
Alarms
>
AIS
.
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
.
Turning Off AIS Reception
AIS signal reception is turned on by default.
Select
Settings
>
Other Vessels
>
AIS
>
Off
.
All AIS functionality on all charts and 3D chart views is
disabled. This includes AIS vessel targeting and tracking,
collision alarms that result from AIS vessel targeting and
tracking, and the display of information about AIS vessels.
Chart and 3D Chart View Settings
NOTE:
Not all settings apply to all charts and 3D chart views.
Some options require premium maps or connected accessories,
such as radar.
These settings apply to the charts and 3D chart views, except
the Radar overlay and Fish Eye 3D (
From a chart or 3D chart view, select
Menu
.
Waypoints & Tracks
: See
Other Vessels
: See
Surface Radar
: Shows surface radar details on the Perspective
3D or Mariner's Eye 3D chart views.
Weather Radar
: Shows weather radar imaging on the
Perspective 3D or Mariner's Eye 3D chart views.
Navaids
: Shows navigational aids on the Fishing chart.
Charts and 3D Chart Views
5
