Dangerous Ais Targets; Lost Ais Targets; Displaying True Or Relative Speed Vectors - Furuno FEA-2107-BB Operator's Manual

21.2.1

Dangerous AIS targets

A dangerous AIS target is displayed as a blinking target symbol, in green and red alternately. You can set CPA and
TCPA limits used by the ECDIS in the Danger Targets page of the Voyage Recording dialog box. For further
details, see "Setting conditions of viewing and logging danger targets" on page 21-6.
21.2.2

Lost AIS targets

A lost AIS target is displayed as a blinking target symbol, in green and dark yellow alternately. Timeout for
displaying AIS target as 1
Vessel speed (kt)
At anchor
0-14
14-23
>23
Lost AIS target symbol will be automatically removed from display if the state "Lost AIS target" for the AIS target
has been in effect 430 seconds. Exception is if your ship is at anchor, then the time is 36 minutes.
21.2.3

Displaying true or relative speed vectors

AIS targets vector can be displayed relative to your ship's heading (RelVect) or with reference to the North
(TrueVect).
Vector time (or the length of vectors) and presentation mode can be set on the status bar, at the locations circled in
the illustration below.
st
AIS target:
Period of time out
18 min
60 sec
36 sec
12 sec
True Vect(G) 12 nm
Past PosnTrue 2 min
CPA 10 nm 10 min
21. AIS Target Functions
21-3