3ņ17
Caution
3.4.5 Control Sensitivity [GAIN/PL]
Procedure 1 Control noise on the radar display by turning the [GAIN/PL] control until
targets can be easily observed.
Turning [GAIN/PL] control clockwise increases sensitivity.
Turning [GAIN/PL] control counterclockwise decreases sensitivity.
Turning the [GAIN/PL] 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/PL] control
counterclockwise to reduce the sensitivity so that the targets are easy to observe. However,
be careful not to overlook important small targets.
If sensitivity is set too high, unnecessary signals such
as noises in the receiver and false echoes increase to
lower target visibility.
At the same time, if sensitivity is set too low, detection
of targets such as ships and dangerous objects may be
hindered.
Therefore, sensitivity must always be set to an optimal
level.
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