Enabling A Guard Zone; Defining A Circular Guard Zone; Defining A Partial Guard Zone - Garmin GPSMAP 9 3 Series Owner's Manual

Enabling a Guard Zone

You can enable a guard zone to alert you when anything comes within a specified area around your boat.
This feature is intended to enhance situational awareness and may not prevent collisions in all circumstances.
You are responsible for the safe and prudent operation of your vessel an for remaining aware of obstacles or
hazards in or around the water. Failure to do so could result in an accident causing property damage, serious
personal injury, or death.
From a radar screen, select Options > Radar Options > Guard Zone.

Defining a Circular Guard Zone

Before you can define the boundaries of the guard zone, you must enable a guard zone
page 101).
You can define a circular guard zone that completely surrounds your boat.
1 From a radar screen, select Options > Radar Options > Guard Zone >
2 Select Circle.
3 Select the location of the outer guard zone circle.
4 Select the location of the inner guard zone circle to define the width of the guard zone.

Defining a Partial Guard Zone

You can define the boundaries of a guard zone that does not completely surround your boat.
1 From a radar screen, select Options > Radar Options > Guard Zone >
2 Drag the cursor to the location of the outer guard-zone corner
3 Select Corner 2.
4 Drag the cursor to the location of the inner guard-zone corner
5 Select Done.
Radar
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to define the width of the guard zone.
(Enabling a Guard Zone,
101