Installation manual

Simrad SH80

Beam

This parameter dialogue opens when you click the Beam button

in the

Horizontal menu.

This function enables you to select the vertical beam width in

the horizontal presentation. The beam selection can be made

manually, or controlled automatically by the selected range.

• The wide beam is designed to be used with shorter ranges

in order to obtain a larger vertical coverage. This makes the

sonar less “tilt dependent” in the catching phase.

• The normal beam is designed to be used for the medium

ranges.

• The narrow beam is provided for the longer ranges. The

focused narrow beam has the highest source level, which

increases the detection range.

In automatic mode, the beam will change automatically as deﬁned

by the range selections made by the

Wide and Normal buttons.

Options

Wide: Click this button to select the upper range for the wide

beam width in Auto mode. For ranges higher than this selection,

the beam will automatically switch to Normal or Narrow

depending on the current selection for the

Normal button.

Normal: Click this button to select the upper range for the normal

beam width in Auto mode. For ranges higher than this selection,

the beam will automatically switch to Narrow, which is indicated

by a grey and unavailable

Narrow button.

Close: Click to close the parameter dialogue.

Help: Click to access the on-line help.

Figure 25 Beam widths: Wide (A), Normal (B) and Narrow (C)

(CD015005A)