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 and MARPA Threats
1 From a chart, select Menu > Layers > Other Vessels > List > Show.
2 Select the type of threats to include in the list.
Setting the Safe-Zone Collision Alarm
CAUTION
The Beeper setting must be turned on to make alarms audible (
Sounds and Display Settings, page 152
). Failure
to set audible alarms could lead to injury or property damage.
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 and MARPA. MARPA functionality works with radar. The
safe zone is used for collision avoidance and can be customized.
1 Select Settings > Alarms > Collision Alarm > On.
A message banner appears and an alarm sounds when a MARPA-tagged object or 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, and select a distance for the safe-zone radius around your vessel.
3 Select Time To, and 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.
4 Select MARPA Alarm, and select an option for when the alarm sounds for MARPA-tagged objects.
Charts and 3D Chart Views
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