5.1 Preparation
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5.1.2 Definitions of Symbols
Types and Definitions of Target Tracking Symbols
Vector/Symbol Definition Remarks
Initial acquisition target
This symbol is displayed until the vector is displayed
after target acquisition.
Target acquired in
automatic acquisition zone
The alarm sounds.
The alarm message (New Target) turns red and blinks.
The symbol is red colored.
Tracked target
Numeric displayed target
When the numeric data is displayed, the target symbol
is enclosed in a square.
Dangerous target
The alarm sounds.
The alarm message (CPA/TCPA) turns red and blinks.
The symbol turns red.
Lost target
The alarm sounds.
The alarm message (Lost) turns red and blinks.
The red X mark is displayed on the target tracking
symbol.
Past position
The past positions of an AIS target are displayed as
well as the target tracking symbol.
Target track
The target track of an AIS target is displayed as well
as the target tracking symbol.
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