How To Set A Guard Zone - Furuno TZTL12F Operator's Manual

How to measure the range, bearing from own ship to a target
Target Target
Tap a target to show its range
and bearing from own ship.

How to set a guard zone

How to set a guard zone
A guard zone alerts you (with aural and visual alarms) when a radar target enters the area you
specify.
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Radar Control
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DATA ROUTE RADAR
Open the
[Layers] menu.
Guard zone Guard zone
The guard zone appears in dashed
lines.
An icon appears at each corner
of the guard zone.
Tap the guard zone again.
Tap
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Tap
Goto
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Tap
Tap dashed line on guard zone.
Drag the icons to set guard zone.
ON
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ON
ON
(Top right corner)
The dashed lines change to
solid lines, indicating the
guard zone is active.