Kongsberg Simrad SN90 Reference Manual page 385

Purse seine and trawling sonar

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operational environment, such as water temperature, salinity, interference and

layers in the water column.

The purpose of the

presentations. By adjusting the gain you can control how much amplification the

SN90 system applies to the received echoes. The setting is by default only applied

to the active view. It is identified with a thick border.

function allows you to control the vertical angle of the sonar beams.

The Horizontal view in the SN90 display presentation covers the entire sector of

160 degrees. For the other views you must define the horizontal direction of the

You can also select the bearing line and drag it sideways.

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