JMA-9172-SA Instruction Manual > 3.BASIC OPERATION > 3.3  OPERATION PROCEDURES
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3.3 OPERATION PROCEDURES
3.3.1 Move Cross Cursor Mark by Trackball
The cross cursor mark  +  is used for position designation and other purposes in 
various operating procedures. The cross cursor mark  +  moves in coupling with 
the trackball. If the trackball is rotated up and down or right and left, the cross 
cursor mark follows the move of the trackball.
Operators must be familiar with trackball operation before running the system.
3.3.1.1 Operation inside Radar Video PPI
The cross cursor mark as shown at right is displayed inside the radar video 
PPI.
• The distance, bearing, and latitude/longitude are digitally indicated in the 
cursor bearing, distance, latitude, and longitude fields (located at the upper 
right of the radar display.)
• When moving the current center position, use the cross cursor mark to 
designate a new center position.
• Use the cross cursor mark to create marks and lines.
• Use the cross cursor mark to manually acquire a target in the target tracking /
AIS display functions.
3.3.1.2 Operation outside Radar Video PPI
As shown at right, the cursor mark changes into the cursor outside the radar 
video PPI.
• Use the cursor to operate software buttons.
• Use the cursor to select menu items.
The EBL / VRM dial is available for operating the cursor mark.
Pressing the EBL dial for 2 seconds can perform switching to
the trackball operation. For details, refer to Section 3.8.4 "Set
Cursor (Cursor Setting)".