On the Water

Understanding the Chart

RememberthattheFishfinderdisplaysa2-Dpicture oftheunderwaterenvironment.Thefishandtree could be located anywhere in the coverage area produced by the sonar cone at the object’s indicated depth.

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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 cannot determine from where the return originated. It can only determine when the return was received.

Examples 1 and 2 provide a look at the underwater world from a top view, and illustrate how these views would be displayed on the chart. On both charts it appears the fish and tree are side by side as shown in Example

1.However, when we look at Example 2, we see that the fish can be several feet from the tree. It is important to remember that the Fishfinder cannot determine where in the coverage area the tree or fish are, only that the returns were received at the indcated depths in the same time frame.

 

Branches

 

Branches

Enlarged

 

Enlarged

 

Transducer

 

Transducer

 

View

Fish

View

Fish

Example 1.

Example 2.