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Chapter 6: Using the Radar 141
maintained. A guard zone only operates when the whole zone is displayed on the
screen. An audible alarm sounds to alert you when a target enters the zone.
Guard zones are inactive for 10 seconds after being placed or re-sized, to avoid
inappropriate alarms whilst they are being positioned.
You can set up guard zones to be either sector zones or 360° (circular) zones. Your
radar can be set up using one or two zones.
You can adjust the sensitivity of the guard zone via the Alarms Setup Menu described
on
page 188
.
To set up a guard zone:
1. Select the guard zone option:
2. Select Zone 1 or 2:
You can now select the guard zone to be either a sector or a circular zone.
Sector guard zones
To set up a sector guard zone:
MONITOR IN
ZONES...
TARGET
TRACKING
D6834-2
ZONE 1
SET UP ZONE 1
D8433_1
O
N
ZONE 2
SET UP ZONE 2
O
N
Toggle to ON
Or
6nm Head-Up Relative Motion
Rings 1nm
D6815_3
Sector
Guard Zone
81221_4.book Page 141 Tuesday, February 28, 2006 5:24 PM