3-26 
3 
3.4  General Radar Operations
y
y y
 
z  When viewing a radar beacon, SART signal, or fast 
moving target on the radar display, select    PROC OFF   
(video process off). 
z  If video processing mode is set to    CORREL ,   
a high speed target is less-visible . 
Effect of target enlargement 
 
  ENH Off    Expansion – off  :  Select this mode particularly when resolution is required. 
  ENH Level1    Expansion – small  :  Select this mode in general. 
      Radar echoes are expanded by 1 scale in all directions. 
  ENH Level2    Expansion – medium  :  Select this mode to easily view the radar video. 
      Radar echoes are expanded by 2 scales in all directions on 
the display. 
  ENH Level3    Expansion – large  :  Select this mode to detect small targets such as buoys. 
      The expansion near a screen center is added to ENH 
Level2. 
 
Note:
  When ENH Level3 is selected, sea clutter returns and rain/snow clutter returns are apt to be 
expanded. When using this expansion mode, operate [SEA] dial and [RAIN] dial to suppress sea 
clutter returns and rain/snow clutter returns. 
In general, ENH Level1 or ENH Level2 should be selected. 
 
 
 
3.4.4    Use Video Processing (PROC) 
 
This function reduces unnecessary noise to highlight targets. 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 Procedures   1  Left-click the    PROC    combobox located at the lower left of the display. 
 
  2  Select the video processing modes to set from the list. 
 
The video processing modes are switched. 
 
Video process modes 
 
  PROC Off    : Select this mode in general. 
  3Scan CORREL   : Select this mode when many rain/snow clutter returns are detected. 
  4Scan CORREL   : Select this mode to highlight targets while suppressing sea clutter returns. 
  5Scan CORREL   : Select this mode to detect small targets hidden by sea clutter returns. 
  Remain    : Select this mode when own ship yaws wildly. 
  Peak Hold    : Select this mode to detect small targets of which detection probability is low. 
Attention