1.OPERATION
2.Press ▲ or ▼ to choose AUTO or MANU as appropriate.
Automatic gain adjustment
a)Press ► to open the automatic gain options window.
ROUGH
MODERATE
CALM
Automatic gain options
b)Press ▲ or ▼ to choose ROUGH, MODERATE or CALM depending on sea conditions.
c)Press ◄ to close the window.
Manual gain adjustment
While observing the screen and the gain tuning bar, press ◄ or ► to set the gain. The setting range is
3. Press the [MENU/ESC] key to finish.
1.8 Suppressing Sea Clutter
In rough weather, returns from the sea surface, called sea clutter, are received over several miles around own ship and mask nearby targets. This situation can be improved by properly suppressing the sea clutter with the A/C SEA control.
In most cases suppress the clutter until it has disappeared to leeward, but a little is still visible windward. If the setting is too low, targets will be hidden in the clutter, while if it is set too high, both sea clutter and targets will disappear from the display.
Acommon mistake is too
Always leave a little sea clutter visible on the Screen, first adjusting automatically and then fine tuning with the manual control as necessary.
Sea clutter at screen center
1.Press the [GAIN] key consecutively until the display shown below appears.
A/C SEA
AUTO : MODERATE
MANU |
|
| 20 |
|
|
[GAIN] : A/C RAIN MENU
[MENU/ESC] : Exit.
A/C SEA adjustment window
2.Press ▲ or ▼ to choose AUTO or MANU as appropriate.
Automatic A/C SEA adjustment
a)Press ► to open the automatic A/C SEA options window.
ROUGH
MODERATE
CALM
A/C SEA options
b)Press ▲ or ▼ to choose ROUGH, MODERATE or CALM depending on sea conditions.
c)Press ◄ to close the window.
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