Vexilar FL-8SLT - Manual (Page 19)

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sounders are placed. If this interference is happening, each of the sounders
will have a non-stop rotating light moving around the dial. One mov-
ing light rotates around the dial clockwise and on the other sounder the
light will rotate in the counter clockwise direction. To eliminate this prob-
lem you can either move the sounders farther apart or shut one off.
Which Side of the Transducer Should Be Aimed Toward
The Lake Bottom?
Most of today's transducers have two sides to them. Side A is the
side that the cable enters the transducer and usually has holes, slots, or
some method to attach a bracket to. Side B is usually flat but may have
different shapes, such as round, square, or arrow shaped. The Side B or
the Flat side should be aimed toward the lake bottom.
What Does the Zero Light Mean?
The zero light is actually the start point of the units transmission of
sound waves. On the display it indicates the zero foot point. This sig-
nal has very little use. Sometimes a portable transducer arm can cause
"ringing" which will display as a very wide zero. The width of the zero
indication should never be more than 5 feet wide. Most problems
occur when the arm, which the transducer is attached to, is metal.
Plastic or wood transducer arms cause little problems. To test your
portable box system, in air, turn the FL-8SLT on, range 1, and with the
gain control turned to maximum position, note the width of the zero
indication. If the zero indication is wider than 5 feet, squeeze the
transducer and metal arm together with your hand. While squeezing,
if the zero gets smaller you need to work on the transducer attach-
ment. To solve the problem, especially with a metal transducer arm,
remove the transducer from the metal arm. Then tape three layers of
black electrical tape around the arm in the flat section of the arm, then
lay the transducer against the tape and continue to tape it onto the flat
section on the metal arm. The tape creates an insulation layer between