On the Water

Understanding the Chart

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Remember that the Fishfinder displays a 2D picture of the underwater environment. The fish and tree could be located anywhere in the coverage area at that slice of time.

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Understanding the Chart

It is important to understand that the unit does not display a 3-D representation of the underwater environment. The unit can display multiple things at the same time, but can not determine where the return originated only when it was received.

Example 2 provides a look at the underwater world from a top view, and relates that view to what would be displayed on the chart. On the chart it appears the fish and tree are side by side, but when we look at the scene from the top we can see that the fish is several feet from the tree. It is important to remember that the fishfinder can not determine where in the coverage area the tree or fish are, only that the returns were received in the same time frame.

 

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Example 2.