How To Set A Guard Zone - Furuno NavNet TZtouch3 TZT9F 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.
60
Open the Layers
menu, tap the
[Overlays] tab.
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
+
-
20
30
40
Tap
Goto Goto Goto
1
Tap
Tap dashed line on guard zone.
Drag the icons to set guard zone.
ON
7 7
ON
ON
Tap
Tap
(Top right corner)
The dashed lines change to
solid lines, indicating the
guard zone is active.