FishEasy 250 dual search frequency menu (left).
SeaFinder 250 dual frequency menu (right).
To switch the Frequency, repeatedly press MENU until the Frequency menu appears. Press ↑ or ↓ to select the desired frequency. Press PWR to clear the frequency menu from the screen.
Fish I.D.
The Fish I.D. feature displays — as fish — targets that meet certain conditions. The microcomputer analyzes all echoes and eliminates sur- face clutter, thermoclines and other undesirable signals.
The Fish I.D. feature displays symbols on the screen in place of the ac- tual fish echoes. There are three symbol sizes: 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 and so forth.
Fish I.D., the default setting for your unit, is an easier way for a sonar novice to recognize a fish signal return when he sees it. But, locating fish by symbol only does have some limitations.
44