3-25 
 
3.4.2  Switch Transmitter Pulse Length [GAIN] 
 
 
 Procedures   1  Press [GAIN] dial. 
 
Values of the transmitter pulse width are switched. 
 
Example  MP1  → MP2  → LP1  → LP2  
 
 
Effects of transmitter pulse width 
 
With  SP  selected: 
The transmitter pulse becomes shorter, and the range resolution improves. 
The effect of suppressing sea clutter returns and rain/snow clutter returns heightens. 
 
Recommended condition for selection: 
In bays/harbors where targets are densely crowded 
Rough sea state due to torrential rain or stormy weather 
 
 
With  MP  selected: 
The normal transmitter pulse length is set. 
Both range resolution and gain are appropriately set. 
 
Recommended condition for selection: 
General navigation 
 
 
With  LP  selected: 
The transmitter pulse becomes longer, and gain improves. 
Small targets are zoomed and are easy to observe. 
When the sea state is bad, detection performance decreases. 
 
Recommended condition for selection: 
Detection of small targets in good weather conditions 
 
Usable transmitter pulse width differs according to the type of antenna being used and the observation 
range being used. For usable pulse width, see section “11.6 SCANNER UNIT ". 
 
 
 
3.4.3    Target Enhance (ENH) 
 
The dimension of video display is enlarged to enhance a target. 
 
 Procedures   1  Left-click the    ENH    combobox located at the lower left of the radar 
display. 
 
  2  Select the target enhance modes to set from the list. 
 
The target enlargement levels are switched.