Garmin 240 Manual De Usuario

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It is important to understand that the unit does not display a 3-D repre-

sentation 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 fi sh and tree are side by side, but when we look at the scene 
from the top we can see that the fi sh is several feet from the tree.  It is 
important to remember that the fi shfi nder can not determine where in the 
coverage area the tree or fi sh are, only that the returns were received in 
the same time frame. 

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

190-00155-10 Rev A.indd

08/16/00, 2:47 PM

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