Garmin GPSMAP 740 Owner's Manual page 62

Radar
4. Touch the location of the inner guard-zone corner.
5. Select Done.
Defining a Circular Guard Zone
You must enable a guard zone before you can define the boundaries of the zone
You can define a circular guard zone that completely encompasses your boat.
1. From the Home screen, select Radar > Sentry > Menu > Sentry Setup > Adjust Guard Zone > Move
Guard Zone > Circle.
2. Touch and drag the location of the outer guard-zone circle, (
3. Select Corner 2.
4. Touch and drag the location of the inner guard-zone corner.
5. Select Circle.
Setting the Safe-zone Collision Alarm
See "Setting the Safe-zone Collision Alarm
Viewing a List of AIS Threats
From any radar view or the Radar Overlay, you can view and customize the appearance of a list of AIS threats.
1. From the Home screen, select Radar.
2. Select Cruising, Harbor, offshore, Sentry, or Radar overlay.
3. Select Menu > other Vessels > AIS List.
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(page 15).
(page 57).
GPSMAP 700 Series Owner's Manual