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Owner's Manual
Frequently Asked Questions
4.10 Why do I never see fish in the range between 0 to 0.7 meters?
The minimum range of the fish finder is 0.7 meters. In this interval the Fish
Finder can detect neither the bottom nor any target.
4.11 How can I reduce the surface clutter?
You can act by: properly setting the STC as described at 6.12 and also by
increasing the NOISE LEVEL and reducing the GAIN or the GAIN OFFSET (if
you are in auto gain mode). However please note that a strong attenuation of
surface clutter may also reduce the capability to detect targets.
4.12 The Fish Finder is in auto gain mode but the picture display
too many small targets, what shall I do to reduce the screen
clutter?
Try increasing the NOISE LEVEL or decreasing the GAIN OFFSET.
4.13 In very shallow waters when the AUTO GAIN mode is selected
there are fluctuations in the bottom profile width and its color
representation. What should I do?
In very shallow waters the environment situation (bottom/water condition) vary
very quickly thus causing the auto gain algorithm to create oscillations while
trying to set optimal GAIN value for each situation. To avoid this it is advisable
to switch to MANUAL GAIN mode and fine tune the GAIN to a fixed setting.
4.14 In very deep waters even setting the GAIN to its maximum
value I cannot see the bottom what shall I do?
Try decreasing the NOISE LEVEL. If the bottom is still not visible, there is
nothing you can do, the bottom echo is simply too weak to be detected.