FLIR Raymarine i70, User Reference

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AIS Messages Description
Alarm on icon AIS on, transmitting, alarm is active.
Silent AIS on & user is silent to other vessels.
Alarm on AIS on, user is silent to other vessels
& alarm is active.
Alarm off icon AIS on & Alarm off
Data lost AIS on & data lost.
No fix AIS on & lost GPS fix.
Insufficient COG/Hdg data No stable COG or heading data
AIS-equipped vessels in the surrounding area are displayed on the
page as targets. A maximum of 25 targets can be displayed, where
more than 25 targets are in range a
Max targets is displayed on
screen. As the vessel’s status changes, the symbol for the target
changes accordingly.
5.2 AIS target symbols
Your display shows a range of symbols to represent the different
types of AIS target.
Target type Description Symbol
Transmitting target Target not activated,
dangerous or lost.
Target is moving or at
anchor.
Selected target Target selected with
cursor. Can view
detailed data.
A IS
Dangerous target
Targets within specified
distance (CPA) or time
(TCPA). Dangerous
target alarm sounds if
enabled. Target red and
flashes.
Uncertain target Calculated CPA / TCPA
value uncertain.
Lost target When signal of
dangerous target not
received for 20 seconds.
Target in latest predicted
position. Alarms sounds
if enabled. Target with
red cross and flashes.
Aid To Navigation (AToN)
target (Real) AToN target is ON
position.
AIS 31