Onwa Marine Electronics KR-1338C v.1 - Manual (Page 38)

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. G(IN) appears at the top
right-hand corner when the In alarm is selected.
Out alarm
The alarm sounds on targets exiting the guard zone. G(OUT) appears at the
top right-hand corner when the Out alarm is selected.
Dashed line
Guard
IN ALARM OUT ALARM
no alarm
Figure 3-8 In and Out alarm
Setting a guard zone
Preparation
1. Press the [MENU] key, and the select "OTHER MENU"and pressing the
[ACQ/ENTER] key.
2. Select "17. 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 [GUARD] key.
"*G(IN)", with asterisk blinking, appears at the top right-hand corner of the
display. See Figure 3-9 (2).(The asterisk indicates the guard zone is partially set.)
3. Operate the omnipad to set the cursor on point C or D. See Figure 3-9 (3).
4. Press the [GUARD] key. The asterisk disappears. See Figure 3-9 (4).
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