6
2
MENU
■
ATA AIS MENU
ATA AIS MENU
ATA No.DISP
OFF
ALL
ON
OFF
ATA ALARM
ON
OFF
AIS DISPLAY
ON
OFF
AIS ALARM
ON
OFF
AIS RANGE
8.0NM
AUTO ACTIVATE
1.0NM
NUMBER OF AIS
100
SLOW WARN
0.1KT
LOST AIS TRGT
ERASE
SEL
ATA
D
ATA (Automatic Tracking Aid)
• OFF: Turn OFF the ATA function.
• ON: Turn ON the ATA function.
D
ATA No. DISP
Select the target identification number type that ap-
pears at the right side of the mark.
• OFF: Do not display any mark number.
• SEL: Display only the selected mark num
-
ber.
• ALL: Display all mark numbers.
D
ATA ALARM*
• OFF: Turn OFF the ATA alarm function.
• ON: Turn ON the ATA alarm function.
D
AIS DISPLAY
• OFF: Turn OFF the AIS display.
• ON: Turn ON the AIS display.
D
AIS ALARM*
• OFF: Turn OFF the AIS alarm function.
• ON: Turn ON the AIS alarm function.
* An ATA alarm or AIS alarm sounds when the CPA and TCPA
reach the limit.
D
AIS RANGE
Set the AIS display range to between 0.1 and 36.0 NM
or
∞
.
• 0.1 to 36.0NM: Select the range from your vessel.
•
∞
: The received AIS information are dis-
played up to the “NUMBER OF AIS”
setting.
D
AUTO ACTIVATE
Set the distance to automatically turn the sleeping AIS
target into an activated target.
• OFF: Turn OFF the Auto Activate function.
• 0.1 to 9.9NM: Select the distance from your vessel.
D
NUMBER OF AIS
Select the maximum number of AIS targets that can
be displayed on the screen to between 10 and 100 in
10 digit steps.
D
SLOW WARN
The AIS unit calculated COG (Course Over Ground)
data of a vessel that is at anchor or drifting is unre-
liable, and therefore the CPA (Closest Point of Ap-
proach) and TCPA (Time to CPA) data may not be
correctly calculated. If a vessel is anchored in your
alarm zone, the unreliable data can cause the collision
alarm to sound many times, even if there is no real
danger. To prevent this, when the anchored vessel’s
SOG (Speed Over Ground) is less than this set value,
the Slow Warn function assumes that vessel’s COG is
fixed towards your vessel and an alarm will sound.
• OFF: Turn OFF the Slow Warn function.
• 0.1 to 4.9KT: Select the vessel’s speed.
D
LOST AIS TRGT
Erase all of the Lost targets.
Push [
u
] to display the confirmation “SURE?,” then
push [
u
] again to clear all of the Lost targets on the
screen.
About “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 screen 6
minutes and 40 seconds after the vessel was regarded
as a “Lost target.”
The criteria to become a Lost target:
Vessel type
Except
Class
B
Class
B
1
Except
Class B
Vessel is at anchor, moored
and moving less than 3 knots
18 min.
—
Class B
Vessel is moving less than 2
knots
—
18 min.
2 Vessel is at anchor, moored and moving
more than 3 knots
1 min.
N/A
3
Except
Class B
Vessel is moving between 0
and 14 knots
1 min.
—
Class B
Vessel is moving between 2
and 14 knots
—
3 min.
4 Vessel is moving between 0 and 14 knots
while changing course
1 min.
N/A
5 Vessel is moving between 14 and 23
knots
36 sec. 90 sec.
6 Vessel is moving between 14 and 23
knots while changing course
36 sec.
N/A
7 Vessel is moving more than 23 knots
12 sec. 30 sec.
8 Vessel is moving more than 23 knots
while changing course
12 sec.
N/A
