Icom MA-510TR, Instruction Manual

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OTHER FUNCTIONS
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Lost target
A vessel is regarded as a “Lost target” after a specified period of time has passed since
the vessel last transmitted data, as described below.
The “Lost target” icon disappears from the plotter display 6 minutes and 40 seconds after
the vessel was regarded as a “Lost target.” Ask your dealer for details.
The criteria to become a Lost target
• Class A/B
Vessel type
Lost target
maximum interval
Class A
Lost target
maximum interval
Class B *
1
CS *
2
SO*
3
1
Class A: Vessel is at anchor, moored and
not moving faster than 3 knots
Class B: Vessel is not moving faster than 2
knots
1080 seconds 1080 seconds
2 Vessel is at anchor, moored and moving
faster than 3 knots
60 seconds N/A
3
Class A: Vessel is moving between 0 and
14 knots
Class B: Vessel is moving between 2 and
14 knots
60 seconds N/A
180
seconds
4
Class A: Vessel is moving between 0 and
14 knots while changing course
Class B: Vessel is moving between 2 and
14 knots while changing course
60 seconds N/A
5 Vessel is moving between 14 and 23 knots 36 seconds N/A
90
seconds
6 Vessel is moving between 14 and 23 knots
while changing course
36 seconds N/A
7 Vessel is moving faster than 23 knots 30 seconds N/A
30
seconds
8 Vessel is moving faster than 23 knots while
changing course
30 seconds N/A
9 Vessel is moving faster than 2 knots N/A
180
seconds
N/A
*1 AIS Class B does not provide information about the navigational status, anchored or
moored.
*2 CS: Carrier-sense, *3 SO: Self organized
• Others
Category Lost target maximum interval
SAR aircraft 60 seconds
AtoN 1080 seconds
Base station 60 seconds