User's Manual

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JMA-9172-SA Instruction Manual > 5.OPERATION OF TARGET TRACKING AND AIS > 5.1 PREPARATION
5.1.2.2 Types and Definitions of AIS Target Symbols
Up to 300 targets can be displayed in total of activated and sleeping AIS targets. Up to 100
activated AIS targets can be included in the total.
• If there are more AIS targets than the allowable maximum, they are displayed
in the following priority order:
• If the number of targets at the same priority level exceeds the allowable
maximum, they are displayed in the following priority order:
Vector/
Symbol
Definition Remarks
Sleeping target This symbol is displayed when received data is
valid.The direction of the triangle's vertex
indicates the target's bow or course.
Activated target The heading direction is displayed with a solid
line, and the course vector is displayed with a
dotted line. The line perpendicular to the
heading direction indicates the direction to
which the course is to be changed. This line
may not be displayed.
Target acquired in
automatic
acquisition zone
The alarm sounds.
The alarm message (New Target) turns red
and blinks.
Outline display The outlines of ships are displayed scaled
down.
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 and enlarges.
Lost target The alarm sounds.
The symbol turns red, and indicates with X
mark.
1. Numeric displayed target
2. Target of which CPA / TCPA is lower than the set
value(Target as a dangerous ship for which an alarm
has occurred)
3. Target in automatic activation zone
4. Activated AIS target
5. Target inside AIS filter
6. Target outside AIS filter
1. Association target
2. Activated AIS target
AIS12
AIS12
AIS12
AIS12
AIS12
AIS12