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4.6 REDUCING SEA CLUTTER

The sea clutter control is normally used on the shorter ranges to suppress the

effect of sea clutter close to own’s ship.

Press the J-DIAL until the SEA appears highlighted on the upper right corner

of the display. Rotate the J-DIAL clockwise or counterclockwise to vary the sea

clutter control and thus control the strength of echo returns from sea surface

clutter. There is an on-screen bar indication of the sea clutter control level in

use.

4.7 ADJUSTNG RAIN CLUTTER

Press the J-DIAL until the RAIN appears highlight on the upper right corner of

the display. Rotate the J-DIAL clockwise or counterclockwise, to vary the rain

clutter control and thus control the strength of echo returns from rain or snow.

As you rotate clockwise, the return echoes will become narrow and the returns

from rain or snow will be reduced. An on-screen bar indicates the selected rain

clutter level.

4.8 SETTING CRT BRILLIANCE

Press the BRIL/DIM key, and then rotate the J-DIAL clockwise or counter-

clockwise to change the display brilliance.

4.9 SETTING DIMMER

By pressing the BRIL/DIM key, the back light for the panel illumination can be

varied in intensity. Dimmer level is reached at maximum brightness, and the

next level returns the dimmer level to the lowest level (OFF).

OPERATION

On short range scales, the setting of the sea clutter control should

never be advanced so high as to completely obliterate all clutter,

since this setting could prevent the detection of close-in target

echoes.

CAUTION