Onwa Marine Electronics KR-12X8 - Manual (Page 37)

3.7 Guard Alarm
The guard alarm allows the operator to set the desired range and bearing for a
guard zone. When ships, islands, landmasses, etc. Violate the guard zone an audible
alarm sounds and the offending target brinks to call the operator
's attention.
Selection of guard zone type
The guard alarm can be set to sound when a target either enters or exits the guard
zone. You can select which type of guard alarm you want through the menu.
In alarm
The alarm sounds on targets entering the guard zone. "IN" appears in the guard
zone data field , the guard zone will flash display.
Out alarm
The alarm sounds on targets exiting the guard zone. "OUT" appears in the guard
zone data field , the guard zone will flash display.
Dashed line
no alarm
Guard
IN ALARM
OUT ALARM
Figure 3-8 In and Out alarm
Setting a guard zone
Preparation
1. Press the [MENU] key, and the select
MENU"and pressing the
[ACQ/ENTER] key.
2. Select "Guard Mode" and "In" (alarm on target entering zone) or "Out" (alarm
on target exiting zone) by operating the omnipad.
3. Press the [ACQ/ENTER] key.
4. Press the [MENU] key to close the menu.
To set a guard zone
1. Mentally create the guard zone you want to set.
2. Operate the onipad to set the cursor on point A or B. Press the [
]
key. See Figure 3-9
3. Operate the omnipad to set the cursor on point C or D. See Figure 3-9 (3).
4. Press the [
] key.
See Figure 3-9 (4).
" FUNCTION
ACQ/ENTER
ACQ/ENTER Alarm zone set, the red dotted line appears on the
screen
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