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| no alarm |
| Guard |
IN ALARM | zone |
OUT ALARM |
Figure 3-8 In and Out alarm
Setting a guard zone
Preparation
1.Press the [MENU] key, and then select “OTHER MENU,” and press the [ACQ/EN- TER] key.
2.Select “15. Guard Mode” and “In” (alarm on target entering zone) or “Out” (alarm on target exiting zone) by operating the trackball.
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. For example, the guard zone shown in Figure
2.Operate the trackball to set the cursor on point A or B. Press the [GUARD ALARM] key. “*G (IN)” or “*G (OUT)”, with aster- isk blinking, appears at the top
3.Operate the trackball to set the cursor on point C or D. See Figure
4.Press the [GUARD ALARM] key. The as- terisk disappears. See Figure
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| Guard zone | * G (IN) | |
| to set | A | |
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(1) Mentally create | (2) Drag cursor to | ||||||||||||||
the guard zone to set. | top left corner of | ||||||||||||||
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(4) Guard zone | (3) Drag cursor to | ||||||||||||||
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| [GUARD ALARM]. |
Figure 3-9 How to set the guard zone
Silencing the audible alarm
Any radar targets violating the guard zone will trigger the audible alarm. You can silence the audible alarm by pressing the [GUARD ALARM] key. When this is done, “G(ACKN)” replaces “G(IN).” This means the alarm is ac- knowledged. Press the key again to reactivate the alarm.
Cancelling the guard zone and alarm
Press and hold down the [GUARD ALARM] key until the guard zone disappears.