Raytheon R80 Owner's Handbook Manual page 17

Chapter 3: Standard Radar Operations
Using MARPA
➤ To acquire a target:
ACQUIRE
TARGET
➤ To cancel a target using the context-sensitive cursor:
CANCEL
TARGET
➤ To cancel a target from the database list.
MARPA
LIST
CANCEL
TARGET
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The MARPA functions are accessed through the MARPA default soft key, and
some options are available with the context sensitive cursor, or through the
MARPA database list. Where there are two ways of performing a certain
function this section describes both ways. Information on how to set up the
MARPA system is in Section 7.5 MARPA set up.
HDG MODE TARGETS
Acquire a Target
1. Press the MARPA soft key to display the ACQUIRE TARGET soft keys.
CANCEL
MARPA BOX
TARGET OFF ON
2. Position the cursor over the required target and press the ACQUIRE TARGET
soft key.
The symbol is placed at the cursor position and the radar searches for a
target at the cursor position. If a target is present for several scans the radar
locks onto it and the symbol indicates a safe target
also displayed. If the target is continuously lost, the lost target symbol
displayed and a Lost Target alarm is generated; press any key to cancel the
alarm and remove the lost target symbol from the display.
3. Press ENTER or CLEAR to return to the default display.
Cancel a Target
1. Move the cursor over the target, the following soft keys are displayed.
CANCEL MARPA BOX
TARGET OFF ON
2. Press the CANCEL TARGET soft key to cancel target tracking and remove the
symbol from the display. The default soft keys are displayed.
1. Press the default soft keyMARPA to display the MARPA soft keys.
2. Press the MARPA LIST soft key, the database list is displayed.
3. Use the trackball to select a target, then press the CANCEL TARGET soft key
to remove the selected target.
4. Press CLEAR to remove the database list.
25
SCREEN MARPA
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ACQUIRE
MARPA
TARGET LIST
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, the target vector is
is