remaining targets are fish. The Fish I.D. feature displays fish symbols on the screen in place of the actual fish echoes. There are several fish symbol sizes. These are used to designate the relative size between tar- gets. In other words, Fish I.D. displays a small fish symbol when it thinks a target is a small fish, a medium fish symbol on a larger target and so on.
The sonar's microcomputer is sophisticated, but can be fooled. It can not distinguish between fish and other suspended objects such as trot- lines, turtles, submerged floats, air bubbles, etc. Individual tree limbs extending outwards from a group of limbs is the most difficult object for Fish I.D. to distinguish from fish. You may see fish symbols on the screen when actually, there are no fish. The reverse is also true.
Does that mean Fish I.D. is broken? No — the feature is interpreting sonar returns in a specific way to help take some of the work out of reading the screen. Remember: Fish I.D. is one of many tools we pro- vide so you can analyze your sonar returns for maximum fish finding information. This and other features can help you successfully see be- neath the boat under varied water and fishing conditions. So practice with the unit with and without Fish I.D. mode to become more familiar with the feature. The default for Fish I.D. is off.
Sonar Features menu with Fish I.D. Symbols selected.
When the check box to the left is checked, the feature is on.
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