Fish Id - Eagle MagnaView Installation And Operation Instructions Manual

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Grayline is adjustable. Since it shows the
difference between strong and weak echoes,
changing the level may require a different
sensitivity setting.
To change the Grayline level, first press the
MENU key until the Grayline menu appears.
Now press the up arrow key to increase the
level, the down arrow to decrease it. The
percentage of Grayline now in use shows in
this menu. Echoes scrolling onto the screen
will also show the effects of the Grayline
change. If you reach the maximum or minimum level, a tone sounds
alerting you to the limits.
The level chosen by the MagnaView when it's first turned on is usually
adequate for most conditions. Experiment with your unit to find the
Grayline setting that's best.

FISH ID

The Fish ID feature identifies targets that meet certain conditions as fish.
The microcomputer analyses all echoes and eliminates surface clutter,
thermoclines, and other undesirable signals. In most instances, remaining
targets are fish. The Fish ID feature displays symbols on the screen in
place of the actual fish echoes. There are four symbol sizes: tiny, small,
medium, and large. These show the relative size between targets. In other
words, it displays a small fish symbol when it thinks a target is a small fish,
a medium fish symbol on a larger target, etc.
The microcomputer is sophisticated, but it
can be fooled. It can't distinguish between
fish and other suspended objects such as
turtles, submerged floats, air bubbles, etc.
Individual tree limbs extending outwards from
a group of limbs are the hardest objects for
the Fish ID feature to distinguish from fish.
You may see Fish ID symbols on the screen
when, in fact, there are no fish. Practice with
the unit when the Fish ID feature is on and off
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