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3.4  GENERAL RADAR OPERATION 
 
 
3.4.1  Interference Rejection (IR) 
 
Interference by other radars is rejected. 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 Procedures   1  Put the cursor on interference rejection (IR) mode switching    IR   
(  ②  lower left of the display on page 2-18) and press the [ENT] key. 
 
The interference rejection modes are switched. 
 
 IR Off  ⇒ IR Low  ⇒ IR Middle  ⇒ IR High  ⇒  IR Off  
 
 
Rejection levels of the interference rejection 
 IR Off   : Interference rejection off 
  IR Low    : Interference rejection level - low 
  IR Middle    : Interference rejection level - middle 
  IR High    : Interference rejection level - high 
 
When a high interference rejection level is selected, the radar’s ability of detecting 
small targets such as buoys and small boats lowers. 
In general,    IR Low    should be selected. 
 
 
 
 
z  When viewing a radar beacon or SART signal, select 
IR Off (Interference Rejection Off) because IR 
processing suppresses the video. 
Attention