Installation manual

Simrad SH80

Colour Threshold

The Colour Threshold parameter dialogue opens when you click

the

Colour Threshold button in the Display menu.

This function is used to reduce the number of echo colours on the

display. The strength of the echoes is indicated with a scale of

16 or 64 colours. A weak echo has a cold colour (blue), medium

echoes have warmer colours (green, yellow) and strong echoes

are shown with the warmest colours (orange, red). If desired,

the number of colours may be reduced. When you do this, the

sonar will start with the colour indicating the weakest echoes.

Therefore, by reducing colours, the m aximum detection range

will be reduced, because all echoes will normally appear as weak

echoes at long ranges.

The following options are available in the

Colour Threshold

parameter dialogue:

• + (plus): Click to increase the number of echo colours.

• – (minus): Click to decrease the number of echo colours.

•

Close: C lick to close the parameter dialogue.

•

Help: Click to access the on-line help.