How To Set A Polygon Acquisition Zone (Az2); How To Sleep/Deactivate An Acquisition Zone; How To Acknowledge The Acquisition Zone Alert - Furuno FAR-2218-BB Operator's Manual

3.16.3

How to set a polygon acquisition zone (AZ2)

The No. 2 acquisition zone can be set anywhere when the No. 1 zone is already in use.
Polygon zones must have at least three points.
To set a polygon shaped acquisition zone:
1. Place the cursor on the [2:] acquisition zone indication at the bottom-right of the
screen, then left-click. The cursor moves inside the operational display area.
2. Place the cursor on the acquisition zone starting point, then left-click.
3. Place the cursor on the second point, then left-click.
4. Repeat step 3 as required to set the remaining points of the polygon zone.
5. Right-click to complete the acquisition zone set up.
Notes on acquisition zones
• 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.
• The default acquisition zone is fan shaped. It can also be a polygon having 3-10
points.
• If both acquisition zones are displayed, a maximum of four polygon points are
shown.
• TT and AIS are automatically set to TT=AUTO and AIS=DISP, respectively, when
an AZ is activated in the following conditions:
TT : TT=OFF or TT=MANUAL 100
AIS : AIS FUNC=OFF or AIS DISP=OFF
3.16.4

How to sleep/deactivate an acquisition zone

1. Select the appropriate [AZ] box.
2. Sleep, or deactivate, the acquisition zone, as explained below:
Sleeping the acquisition zone
Left-click the box several times until the indication shows "SLEEP".
Deactivating the acquisition zone
Left-click the box until the AZ box becomes blank.
Note: When both zones ([1:] and [2:]) are active, [2:] must be deactivated before
[1:] can be deactivated.
If [1:] and [2:] are active when you try to deactivate [2:], the system releases an
audible alert and shows the message "DELETE AZ2 FIRST".
3.16.5

How to acknowledge the acquisition zone alert

Press the ALARM ACK key on the control unit, or select the [ALERT] box with the
trackball then left-click to acknowledge the alarm and silence the buzzer.
3. TARGET TRACKING (TT)
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