3 – 3
3.1
3.1.2 Tuning
Procedures
1. Press the 
RANGE
 or 
RANGE
 key to select any range between 6 and 120
nautical miles.
Press the left 
RANGE
 key to decrease the range.
Press the right 
RANGE
 key to increase the range.
2. Turn the 
TUNE
 control.
Adjust the video for best presentation.
If radar display doesn't show a weak target, adjust the control until the turning bar on
the lower left of the screen indicates the maximum.
To use Auto Tuning mode
Procedures
1. Press the 
TUNE
 control.
Select auto tuning mode, "AUTO" appears on the right of the tuning bar.
Exit
2. Press the 
TUNE
 control again.
"AUTO" disapears on the right of the tuning bar, changes to manual mode.
3.1.3 Observation and Video Adjustment
Procedures
1. Press the 
RANGE
 or 
RANGE
 key to select the range appropriate for
observation.
2. Turn the 
GAIN
 and 
BRILL
 controls so that the target is displayed
most clearly.