Vexilar Flasher Family 2013 - Manual (Page 6)

6
FLASHER OPERATION
Basic Use
The Vexilar FL series color flashers are great tools for open water and ice fishing. Once
you learn to understand the color display, you can apply this knowledge to greatly
increase your awareness of what’s under the water.
FL S
erieS
F
LaSherS
C
an
B
e
U
Sed
F
or
:
• Determining the current depth at any boat speed.
• Locating fish-holding underwater structure.
• Determining the bottom hardness and transition lines.
• Penetrating thick vegetation to see what’s below.
• Finding fish and the bait they feed on.
• Watching your bait and the fish around it.
Operation of each of the flasher models is very straight forward. You simply turn the unit
on, select an appropriate depth range setting, and then an appropriate gain level setting.
You should change the range and gain settings only when the conditions change.
RANGE
Range determines the maximum depth of water in which the flasher can see the bottom.
For example, the shallowest range available on the FL-20 is 0 to 20 feet. This means that if
the water depth is between zero and 20 feet, the bottom will be displayed on the screen.
If the water depth gets deeper than 20 feet, you’ll want to select a deeper depth range
in order to see the bottom.
DID YOU KNOW ?: It is usually best to select the shallowest depth range possible to see
the bottom. This allows the water column below to be represented by the greatest amount
of display screen area. This offers the highest resolution, makes things bigger and easier
to see.
GAIN
Gain controls the amount of amplification applied to the return sonar signal. Think of gain
as your volume control. You turn up the gain to see more of what’s below. You turn down
the gain to see less of what you don’t want to see. The goal is to find a gain level that
shows you as much real information as possible, without displaying stray signals of clutter
and interference. Keep the gain setting as low as possible for best overall performance.
INTERFERENCE REJECTION
This feature rejects sonar interference generated by other nearby depth sounders.
Interference Rejection, or IR, comes on automatically when you turn the flasher on, but
you can adjust the setting if desired. Learn more on page 13.