Gain Function - Simrad ES80 Reference Manual

Simrad ES80 Reference Manual
Details
Start Range
This setting controls the upper start depth for the echogram. The vertical height of
the echogram is the value defined by the
Select either side of the button to choose a value. Select the middle of the button to
open it.
Apply to all
The depth value shown and selected is by default only applied to the currently
selected echogram. If you wish to apply the new start range setting to all the
current echograms of the same type, select
Related tasks
Choosing and
Range
Choosing and
Range
Conceptual descriptions
Observation range versus operational frequency, page 457
About bottom echoes, page 458

Gain function

The purpose of the
Gain
Adjusting the you can control how much amplification is applied to the received
Gain
echoes. By default, the gain setting is only applied to the currently selected echogram
(identified with a thick border).
How to open
This function is opened from the
Description
You can compare this gain setting with the volume control on your car radio. When
the gain is increased, the echoes will appear stronger. Weak echoes will be easier to
see. However, since you also increase the acoustic noise in the reception, the ES80
presentations will also show this noise. Too much gain may therefore "distort" the
presentation.
By default, the gain setting is only applied to the currently selected echogram (identified
with a thick border). Several echogram types are available.
312
values in a surface related echogram, page 94
Start Range
values in a bottom related echogram, page 95
Start Range
function is to adjust the echo level in the ES80 presentations.
menu.
Main
setting.
Range
.
Apply to all
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