Owner`s manual

The three-colors of the FL-18’s display represents the strength of a sig-

nal. A red color indicates a strong signal, an orange color indicates a medi-

um strength signal, and green represents a weak signal. The colors will

combine to indicate objects, such as bottom echoes, structure, fish, and

plankton. This section is intended to help you understand how to read

the depth, identify fish, and understand the meaning of the FL-18’s dis-

play.

FINDING THE DEPTH

To read the proper depth on the FL-18, you will need to turn the unit

on to an appropriate range. First make sure you are in the Normal mode.

Then turn the Range knob to the right one click. The signal at the 12

O’clock position on the dial is the “zero mark”. This can be thought of as

the surface of the water. If the depth is less than 20 feet you will see a sec-

ond signal, similar in appearance to the zero mark, appear on the dis-

play. This is the bottom signal. If no second signal appears, turn up the

Fig. J

Trailing Edge

Bottom

Signal

Leading

Edge

Fish

Bait

Zero Signal

Read Depth

Here

TYPICAL INDICATIONS