AIS PLOTTER
Icon Meanings
Class B target.
Class A target.
An aid to navigation. A virtual aid to navigation.
An AIS Man Overboard (AIS MOB) or search and rescue transponder (AIS SART).
This symbol appears around a target to indicate it is the currently selected target.
This symbol is overlayed over a target to indicate the target is “lost”. No AIS data
has been received from the target within the expected interval.
Indicates your AIS data is not being transmitted. You can use the AIS Status screen
to determine the reason.
When used with a Vesper Marine AIS/VHF antenna splitter this symbol indicates
the VHF radio is in-use and AIS transmissions are temporarily disabled.
North Up
Touch target
counts to
view list
Selected Vessel’s CPA/TCPA
Touch for full details
Your Position
and Vector
Range Zoom
Range Rings
Alarm Profile
Transmit
Warning
• Color and size of targets change depending on their alarm state.
• The target icon points in the direction of the target’s heading. If heading data
is not available it will use course over ground (COG). Target vectors always
use COG.
• You must have a valid GPS fix for any targets to be shown on the AIS plotter.
• Go to
www.vespermarine.com/vision
for additional information.
Anchor
Watch
Closest point
of approach
for selected
target is shown
by colored
dots with
the vector
length equal
to time until
closest point
of approach
