32
6
ATA OPERATION
■
Related settings
D
Target menu
You can change the target settings for ATA operation.
The settings of the Target menu are commonly used
for the ATA and AIS operations. See page 7 for the
Target menu details.
These are the Target menu items and their default set-
tings.
•
Vector Mode:
True
•
Vector Time:
6 min
•
Track Interval:
1 min
•
CPA* Limit:
1.0 NM
•
TCPA* Limit:
1 min
•
CPA/TCPA Alarm: ON
* CPA/TCPA: Closest Point of Approach and Time to
Closest Point of Approach limits are set to give a
warning when a target or targets enter those limits
around your own vessel.
■
ATA operation
D
Operation
Select a target on the screen that you want to track.
Turn ON the ATA function and set its settings. (p. 31)
q
Push [
p
], [
q
], [
t
] or [
u
] to move the “+” cursor onto
a desired target.
w
Hold down [MODE•ACQ]/[
•
] for 1 sec-
ond to set the target for tracking.
• A dotted circle symbol is displayed on the cursor.
• After 20 seconds progressing time has passed, the dot-
ted vector is displayed on the target.
• After 1 minute progressing time has passed, it changes
to a solid circle with a dotted vector line, and tracking
operation starts.
➥
When the target disappears, red crosses blink on
the target, and then the mark disappears after 1
minute.
➥
When a target advances within the CPA and TCPA
limits, the mark changes its color to red, blinks, and
sounds an alarm. To cancel the alarm, push any
key.
➥
To cancel the target setting, move the cursor onto
the target, then hold down [CLEAR]/[
] for 1 sec-
ond.
➥
To select the target that displays information, set the
cursor to the target, and then push [ENTER]/[
].
• The corners of a square are displayed on the selected
target.
•
The target identification number, position (POSN), course
(CRS), speed (SPD), CPA, TCPA, bearing (BRG), and
distance (DIST) are displayed.
Identification No.
Vector mode
Bearing
Course
Distance
Speed
Position
Time to Closest Point of Approach
Closest Point of Approach
• ATA information box
Information box:
Move the cursor on the title bar, then push [ENTER]/
[
] to collapse or expand the information box.
