18 
(15) [TRAILS] key 
Short mode : 
Switches to time track/continuous track/time track + continuous track/non-display. 
Long mode :  Displays a track menu (track erase, track time setting change, and so on). 
(16) [CSR POS] key 
Short mode : Outputs the information of the bearing and distance from the current own 
ship's position to cursor position. It is output by the serial communication from 
the RS232C port.   
Long mode :  Outputs the information of the bearing and distance when the cursor is the own 
ship's position. It is output by the serial communication from the RS232C port. 
(Outputs "distance = 0NM", "bearing=0 degree"). 
(17) [+RANGE-] key 
Short mode :  Switches the range (+: range up, -: range down). 
Long mode :  Switches the continuous range (+: continuously range up, -: continuously range 
down) 
* When the [+RANGE-] key is pressed while the zoom function is ON, the zoom function is 
automatically released. 
(18) [ACQ/ENT] key 
Short mode :  Target capture 
Long mode :  ACQ mode menu 
(19) [MENU] key 
Short mode :  Set a menu to ON/OFF. 
Long mode :  Set an initialization menu to ON/OFF 
*  Initialization refers to the settings made at installation.