Garmin International Inc 02120D Manuel D’Utilisation

Dangerous target in range. The target flashes while an

alarm sounds and a message banner appears. After the

alarm has been acknowledged, a solid red triangle with a

red line attached to it indicates the location and the

heading of the target. If the safe-zone collision alarm has

been set to Off, the target flashes, but the audible alarm

does not sound and the alarm banner does not appear. If

the AIS transmission from the vessel is lost, a message

banner appears.
Dangerous target is lost. A red X indicates that the AIS

transmission from the vessel is lost, and the chartplotter

displays a message banner asking whether the vessel

should continue to be tracked. If you discontinue vessel

tracking, the lost dangerous target symbol disappears

from the chart or the 3D chart view.
The location of this symbol indicates the closest point of

approach to a dangerous target, and the numbers near

the symbol indicate the time to the closest point of

approach to that target.

When heading and course over ground information are

provided by an activated AIS target, the heading of the target

appears on a chart as a solid line attached to the AIS target

symbol. A heading line does not appear on a 3D chart view.
The projected course of an activated AIS target appears as a

dashed line on a chart or a 3D chart view. The length of the

projected course line is based on the value of the projected

heading setting. If an activated AIS target is not transmitting

speed information, or if the vessel is not moving, a projected

course line does not appear. Changes in the speed, course

over ground, or rate of turn information transmitted by the

vessel can impact the calculation of the projected course line.
When course over ground, heading, and rate of turn

information are provided by an activated AIS target, the

projected course of the target is calculated based on the

course over ground and the rate of turn information. The

direction in which the target is turning, which is also based on

the rate of turn information, is indicated by the direction of the

barb at the end of the heading line. The length of the barb

does not change.

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.

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.

From a chart or 3D chart view, select Menu > Other

Vessels > AIS Display Setup.

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.

From a chart or a 3D chart view, select an AIS vessel.

Select AIS Vessel > Activate Target.

You can view the AIS signal status, MMSI, GPS speed, GPS

heading, and other information that is reported about a

targeted AIS vessel.

From a chart or a 3D chart view, select an AIS vessel.

Select AIS Vessel.

From a chart or a 3D chart view, select an AIS vessel.

Select AIS Vessel > Deactivate.

From a chart or 3D chart view, select Menu > Other

Vessels > AIS List.

Before you can set a collision alarm, you must have a

compatible chartplotter connected to an AIS device or radar.
The safe-zone collision alarm is used only with AIS. The safe

zone is used for collision avoidance and can be customized.

Select 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.

Select Range.

Select a distance for the safe-zone radius around your

vessel.

Select Time To.

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 Search and Rescue Transmitters (AIS-SART, or SART)

are self-contained devices that transmit emergency position

reports when activated. SART transmissions are different

than standard AIS transmissions, so they appear differently

on the chartplotter. Instead of tracking a SART transmission

for collision avoidance, you track a SART transmission to

locate and assist a vessel.

Charts and 3D Chart Views

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DRAFT