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18
ATA/AIS
■
ATA (Automatic Tracking Aid)
By automatically tracking the target chosen by the cursor key, the closest point of approach (CPA) and the time to
closest point of approach (TCPA) limit of your ship and a target are calculated.
ATA function is designed to sound an alarm when the CPA and TCPA fall below a set value (the approach watch
area).
Only targets in the 0.25 to 16 NM range that are displayed with a high luminosity (strong return signal) can be se-
lected as ATA targets.
• A maximum of 10 targets can be plotted on the screen.
• Plot positions are identified by an approved symbol mark (p. 20) and associated plot number.
• The target and vector line will move across the screen at the rate and direction defined by the calculated true
or relative course and speed.
• The vector line is displayed on the target.
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
■
ATA settings
D
ATA AIS menu
Set the menu items before using the ATA function.
q
Push [MENU]/[
] one or more times to select the
menu.
w
Push [
p
] or [
q
] to select the item.
e
Push [
t
] or [
u
] to select the option.
r
Push [MENU]/[
] one or more times to exit the
menu.
Select the ATA AIS menu, then set the items.
ATA
Turn ON the ATA function.
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 number.
• ALL: Display all mark numbers.
ATA ALARM
Turn the ATA alarm function ON or OFF.
• An ATA alarm sounds when the CPA and TCPA reach
the limit.
