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3.5 BASIC OPERATIONS
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3.5.10 Switch Pulse Length (GAIN/PL)
Procedures 1 Press [GAIN/PL] control.
The transmitter pulse length changes cyclically in the following sequence each time
[GAIN/PL] control is pressed:
SP → MP → LP → SP The currently selected pulse length is indicated at
the upper left of the radar screen.
The pulse length can be changed only when the range is set to 0.75, 1.5, 3, 6, or 12 NM.
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 sensitivity are appropriately set.
Recommended condition for selection:
General navigation
With LP selected:
The transmitter pulse becomes longer, and sensitivity improves.
Small targets are zoomed and are easy to observe.
Recommended condition for selection:
Detection of small targets in good weather conditions
* Button
3
on the radar display on page 2-7 is also available to switch pulse width.
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