JRC JMA-9172-SA, Instruction Manual

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JMA-9172-SA Instruction Manual
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3.BASIC OPERATION
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3.4 GENERAL RADAR OPERATION
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3.4.2 Switch Transmitter Pulse Length [GAIN]
Procedures
1)
Press [GAIN] dial
Values of the transmitter pulse width are switched.
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 11.2
“ SCANNER UNIT (NKE-1532) ”
Effects of transmitter pulse width
With 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 selected: The normal transmitter pulse length is set. Both
range resolution and gain are appropriately set.
Recommended condition for selection: General navigation
With 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.
MP1 MP2 LP1 LP2
SP
MP
LP