6. Radar
6-32
How to set the CPA/TCPA Alarm
1. Press the MENU key to open the menu.
2. Open the [Alarm-Target] menu, shown right.
3. Use the RotoKey to select [CPA/TCPA
Alarm] then push the key to activate the
alarm on (status icon in green).
4. Use the RotoKey to set CPA and TPCA val-
ues at [CPA Alarm Value] and [TCPA Alarm
Value].
5. Press the MENU key to close the menu.
How to acknowledge the CPA/TCPA Alarm
The CPA/TCPA alarm sounds when the CPA and
TCPA of an ARPA target are within the CPA/
TCPA alarm range. To acknowledge the alarm
and stop the audio alarm, press the CANCEL key. (The ARPA vector must be dis-
played at least 30 seconds to calculate CPA and TCPA.)
How to deactivate the CPA/TCPA Alarm
Show the status icon of CPA/TCPA Alarm in the [Alarm-Target] menu in gray to deac-
tivate the CPA/TCPA alarm.
6.27.7 How to Set an ARPA Acquisition Area
Any target that enters a ARPA acquisition area is acquired and tracked automatically.
When a target leaves the area, the buzzer sounds. You can stop the buzzer with the
CANCEL key.
1. On the radar display, push the right-click button to show the Radar pop-up menu.
2. Use the RotoKey to select [Set Guard 1] or [Set Guard 2], the guard zone to set.
The cursor appears at the cursor location.
3. Use the CursorPad to put the cursor at the top-left corner for the guard zone (Point
A in the illustration on the next page).
4. Press the left-click button.
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