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you will install on the transom or inside the hull, and the LCR 400ID unit which you will
mount with the supplied gimbal bracket. The transducer and LCR 400ID communicate
by means of a cable, and are powered by your boat’s 12-volt DC battery.
The transducer and LCR 400ID use the basic principles of sonar to reveal objects
beneath the water's surface. The LCR 400ID continuously sends electronic signals to
the transducer, which converts them to ultrasonic signals that it aims toward the bottom.
Each signal travels downward until it strikes an object or the bottom, then immediately
echoes back to the transducer. As the transducer receives these signals, it converts
them back to electronic signals for display on the LCR400ID screen.
The LCR 400ID uses the returned
signals to display a detailed underwater
image, and constantly updates the
display as you travel across the water.
The display informs you of the current
depth and reveals individual fish,
schools of fish, their location, and
bottom details.
Easy-to-use controls on the LCR 400ID
allow you to set the depth range, adjust
display speed and sensitivity, enable a
fish alarm and bottom alarm, and
display a "zoom" window of still more
detailed information.