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Symbol Meaning
Virtual ATON: Topmark West
Virtual ATON: Topmark Special
Virtual ATON: Topmark Safe
Virtual ATON: Topmark Danger
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
16
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 Menu
NOTE: Not all settings apply to all charts. Some options
require premium maps or connected accessories, such as
radar.
NOTE: The menus may contain some settings that are
not supported by your installed charts or your present
location. If you make changes to those settings, the
changes will not impact the chart view.
From a chart, select Menu.
Layers: Adjusts the appearance of the different items on
the charts
(Chart Layers, page
Quickdraw Contours: Turns on bottom contour drawing,
and allows you to create fishing map labels
Quickdraw Contours Mapping, page
Settings: Adjusts the chart settings
page
19).
Edit Overlays: Adjusts the data shown on the screen
(Customizing the Data Overlays, page
Chart Layers
You can turn on and off chart layers and customize
features of the charts. Each setting is specific to the chart
or chart view being used.
NOTE: Not all settings apply to all charts and chartplotter
models. Some options require premium maps or
connected accessories.
NOTE: The menus may contain some settings that are
not supported by your installed charts or your present
location. If you make changes to those settings, the
changes will not impact the chart view.
From a chart, select Menu > Layers.
Chart: Shows and hides chart-related items
Settings, page
17).
16).
(Garmin
19).
(Chart Settings,
5).
(Chart Layer
Charts and 3D Chart Views
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