Vexilar FL-10 - Manual (Page 10)

10
UNIT OPERATION
To switch the FL-10 on, turn the larger control knob to the
right. Turning the unit on also selects the depth range. The
first setting covers zero to 20 feet. The second range covers 0
to 40 feet and the third range covers 0 to 200 feet. If the first
setting shows only a mark at the zero position on the display,
switch to a deeper range until you see the depth mark appear.
Depth is read in the clockwise direction. Zero, or the water
surface, is at the 12:00 position. The depth gets deeper as you
go around the dial clockwise.
GAIN CONTROL
The smaller knob is the gain control. This controls the
amount of signal that you see on the display. A gain setting
of MIN will display a minimum amount of signal while a
gain setting of MAX will show the maximum amount.
Different conditions will require different gain settings. Deeper
water will require higher gain than shallow water. A weedy
bottom will demand a lower gain setting than a clean bot-
tom. Keep the gain level low. Too much gain can "wash out"
the targets that you want to see. Generally, it is a good idea
to set the gain at an appropriate level and leave it there, unless
water depth or conditions change substantially.