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4. Tracked Target (TT) Operation
4-19
4.14 How to Set an Acquisition Zone
The acquisition zone functions both to alert you targets in a specific area and acts as an automatic acquisition area
when automatic target acquisition is active. Any targets entering the zone will be automatically acquired.
When a target enters an acquisition zone, the buzzer sounds and the indication TT target in ACQ ZONE (or AIS
target in ACQ ZONE) appears (in yellow) in the Alert Box. The symbol of the offending target is red and flashing.
Further, the AIS display is automatically turned on if it is off.
4.14.1 How to activate an acquisition zone
One or two acquisition zones may be set, and the maximum range for AZ1 is 6 nm and 24 nm for AZ2.
The procedure below shows how to set an acquisition zone, using the example at the bottom of the page.
1. Use the trackball to select AZ1 box at the right side of the screen.
AZ1
AZ2
AZ status:
Blank: AZ off
SET: Set AZ
WORK: AZ active
SLEEP: AZ asleep
AZ boxes
2. Push the left button. The AZ box now reads "As SET."
3. Use the trackball to put the cursor on point A then push the left button.
4. Use the trackball to put the cursor on point B then push the left button.
The GZ box now reads "WORK."
Acquisition zone
Note 1: If you wish to create an acquisition zone having a 360-degree coverage around own ship, set point B in
almost the same direction (approx. ±3°) as point A then push the left button.
Note 2: If the range scale is changed to less than half of the acquisition zone, the AZ box reads "OUT." If the left
button is pushed in this state, the acquisition alarm zone goes into "sleep" state (inactive) and the guidance area
reads "AZ WORK L = DELETE."