3. ARPA OPERATION
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3.11 Lost Target
When the system detects a lost target, the audio alarm sounds and the alarm mes-
sage "LOST" appears. The target symbol becomes a flashing square like the following
illustration. When the system detects the target again, the target symbol becomes a
normal symbol.
Lost target symbol
To erase a lost target symbol, put the cursor on the symbol and press the CANCEL/
HL OFF key. If you leave a lost target symbol flashing, the symbol disappears after
one minute.
You can remove all lost ARPA targets from the screen as follows:
1. Press the MENU key to open the menu.
2. Use the Cursorpad (S or T) to select [ARPA] and press the ENTER key.
3. Use the Cursorpad (S or T) to select [ACK Lost Targets] and press the ENTER
key.
ACK Lost Targets options
4. Use the Cursorpad (S) to select [Yes] and press the ENTER key. All lost targets
symbols are erased from the screen and the long beep sounds.
5. Press the MENU key to close the menu.
3.12 Symbol Color
You can select the ARPA symbol color from Green, Red, Blue, White or Black.
1. Press the MENU key to open the menu.
2. Use the Cursorpad (S or T) to select [ARPA] and press the ENTER key.
3. Use the Cursorpad (S or T) to select [Color] and press the ENTER key.
Color options
4. Use the Cursorpad (S or T) to select the color and press the ENTER key.
5. Press the MENU key to close the menu.
Note: Symbols can not be shown in the same color as the background color.
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