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JMA-9100 Instruction Manual > 2.CONTROL PANEL KEYS and SOFTWARE BUTTONS> 2.3  FUNCTIONS OF SOFTWARE 
BUTTONS
2.3 FUNCTIONS OF SOFTWARE 
BUTTONS
In this radar, the frequently used functions can be directly set from the screen 
without opening the menu by using the software buttons on the screen for quick 
handling. The screen is divided into a number of areas and each area is named.
The name of each button is described from the next page. The function can be 
used by left-clicking while setting the arrow cursor on the button position.
PPI
Upper left
of the display
Lower left
of the display
Upper right
of the display
Lower right
of the display
Own ship's 
information
Digital information
Target
tracking (TT) /
AIS information
Menu
Brilliance /
Display information
Alarm