Heading And Projected Course Of Activated Ais Targets; Activating A Target For An Ais Vessel; Viewing Information About A Targeted Ais Vessel; Deactivating A Target For An Ais Vessel - Garmin GPSMAP 12x3 Owner's Manual

Heading and Projected Course of Activated AIS Targets

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.

Activating a Target for an AIS Vessel

1 From a chart or 3D chart view, select Options > Layers > Other Vessels > AIS > AIS List.
2 Select a vessel from the list.
3 Select Review and review the target information.
4 Select 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.

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 Options > Layers > Other Vessels > AIS.
2 Select an option:
• To show the tracks of AIS vessels, select AIS Trails and adjust the trail length if needed. .
• To indicate the distance from your location in which AIS vessels appear, select Display Range, and select
a distance.
• To show a list of AIS-activated vessels, select AIS List.
34 Charts and 3D Chart Views