Vexilar FL-10 - Manual (Page 14)

14
in the cone of sound we cannot readily identify them. For
example, the green mark at seven feet in figure J could be a
small piece of floating debris or a single small baitfish in the
center of the cone. It could also be a large game fish at the
very edge of the transducer cone.
In the weeds, spotting fish is more difficult. Figure K
shows a bottom at twelve feet. The weeds extend from the
bottom up to about six feet. Notice the red mark at nine feet
is labeled "possible fish". We cannot say that it is a definite
fish because the weeds around it are dense enough to give a
red signal themselves. Again, keep the gain as low as you can
for reading in the weeds. If you can't turn the gain down far
enough you may want to get an optional S-Cable to cut down
the power of your unit.
CLUTTER AND NOISE
Clutter is created by very small targets in the water. It is
usually displayed as thin green or orange lines. Clutter can
include bait fish, plankton, floating debris, or air bubbles.
Although clutter is not fish, it can be useful in finding fish.
One type of noise is electrical noise, which is caused by
the engine ignition, radios, or trolling motors. It can be
displayed as red, orange, or green marks that flash as the
interfering equipment is operated. The FL-10’s internal
circuitry will block out most noise, but sometimes, extra
measures are required to eliminate it. Please contact our
service department or log on to www.vexilar.com for more
information.