Owner`s manual

GENERAL DESCRIPTION

The FL-18 is a compact and lightweight depth sounder designed for

serious anglers. Besides indicating depth, the unit also shows changes in

bottom content and conditions. It can also discriminate between large

underwater targets, such as fish, and smaller targets such as bait fish and

plankton. The split-screen zoom feature provides very high display res-

olution within the bottom six feet of the depth.

The unit transmits bursts of high frequency pulses, which are converted

from electrical to mechanical energy by the transducer. These "sound"

pulses radiate from the transducer downward into a cone shaped area

and are reflected back up to the transducer where the energy is convert-

ed back to electrical signals. The FL-18 then processes these signals and

displays them.

The circular display is accom-

plished by attaching an LED (Light

Emitting Diode) to a wheel, which

is then spun at a high speed in

the clockwise direction. This

allows for an extremely high

speed update. The bottom, as well

as other targets, can be displayed

as red, orange, or green to indicate

strong, medium and weak signals

respectively. The FL-18 also has

patented Interference Rejection (IR)

Technology. This lets the user "filter out" unwanted interference from

another nearby depth sounder. With a wide variety of transducers and

accessories to choose from, the Vexilar FL-18 is a sure fit for any appli-

cation.