Kongsberg Simrad SU90 Operator's Manual page 84

Simrad SU90 Operator Manual
Tip
We recommend that the reverberation controlled gain is active all the time, but be careful
in the vertical presentation.The filter works best on small schools.
This rough guide to the settings can be used as a starting point for own experiments.
1 Use for scattered fish.
2 Use for schools.
3 Use for schools with higher density. This setting can also be used in horizontal
views to detect schools close to the bottom.
4 Use for scattered fish located close to the bottom. This setting uses a slightly
different algorithm than the other scattered fish settings.
5 Use for scattered fish located close to the bottom. This setting uses a slightly
different algorithm than the other scattered fish settings.
6 Use for scattered fish. This setting uses a slightly different algorithm than the other
scattered fish settings.
7 Use for scattered fish. This setting uses an algorithm dedicated for higher bandwidth.
8 Use for schools. This setting uses an algorithm dedicated for higher bandwidth.
9 Use for schools. This setting uses an algorithm dedicated for higher bandwidth.
The filters in the SU90 system are implemented in "series". The reverberation controlled
gain adjustment is made late in the sequence, so any changes to the preceding filters may
have an effect on how it works.
Procedure
1 Click in any view to make it active.
The active view is identified with a thicker border. Unless you use the
function, all changes you make will only be applied to this view.
2 Open the
Active
3 Select (Reverberation Controlled Gain).
RCG
4 Select a value from the options provided.
The choice you make is by default only applied to the currently selected (active)
view.
Related topics
Improving the recognition of fish and schools using receiver filters, page 78
82
menu.
Apply to all
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