Chapter 2  OPERATIONS 
2.4  SENSITIVITY ADJUSTMENT 
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INSTRUCTION MANUAL 
 [GAIN] Control 
Turning the [GAIN] control clockwise increases receiving sensitivity and extends the 
radar observation range. If the sensitivity is too high, the receiver noise increases 
reducing the contrast between the targets and the background video. As a result, the 
targets become obscure on the radar display. To observe densely crowded targets or 
short-range targets, turn the [GAIN] control counterclockwise to reduce the sensitivity so 
that the targets are easy to observe. However, be careful not to overlook important small 
targets. 
 
 Switching to Manual/Automatic Mode 
1  Hold down the [GAIN] control. 
 
The sensitivity can be switched between manual and automatic modes. 
The mode is indicated as shown below.