Kongsberg Simrad SN90 Reference Manual page 615

Purse seine and trawling sonar

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The horizontal scale controls how

"fast" the echoes move from right

towards left across the presentation.

The changes you make are by default

only valid for the active Inspection

view. Click in the Inspection view

to activate it. The active view is

identified with a thicker border.

Horizontal Axis

The echoes travel from right towards left across the echogram presentation. Use

Horizontal Axis

the "speed" of the echoes.

: The horizontal scale is based on sailed distance. Select resolution

: The horizontal scale is based on time. Select resolution and unit.

: The horizontal scale is based on the number of transmissions ("pings")

made. Select

define the number of displayed horizontal pings using one ping per pixel.

: The horizontal scale is based on the relative speed you choose. Select

speed with the ruler.

Small labels are shown in the bottom left and right corners of the view. These

labels can contain time or distance to identify the horizontal axis of the echogram.

You can hide the labels from view.

: The labels are hidden

: The horizontal scale is set automatically

: The horizontal scale is defined by time. The time shown in the bottom

right corner of the echogram is then the current time (now).

: The horizontal scale is defined by distance. The distance shown in the

bottom right corner of the echogram is then 0 nautical miles (starting point).

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