Bottom Gain Function - Simrad ES80 Reference Manual

Simrad ES80 Reference Manual
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2 of 3
For the current echo to be shown, the same echo must be present in at least two
of the previous three pings.
•
2 of 2
For the current echo to be shown, the same echo must be present in both of
the previous two pings.
•
3 of 3
For the current echo to be shown, the same echo must be present in all of the
previous three pings.
Apply to All
Select this box to use the chosen setting on all the echograms of the same type.
Related tasks
Removing noise and false echoes from the echogram, page 111

Bottom Gain function

The setting controls the gain below the detected bottom depth.
Bottom Gain
How to open
This function is opened from the
Description
Different bottom conditions (rock, sand, mud etc) will result in different bottom echoes
in the ES80 echograms. By changing the bottom gain, the presentation is changed
depending on the bottom type. You can thus learn more about the bottom.
Certain species are known to prefer specific bottom conditions. With more knowledge,
you are better qualified to estimate the possible catch.
Example
The typical effect of the
418
menu.
Active
adjustment
Bottom Gain
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