Control Functions; Knobs - Teleflex TFX320 Operation Manual

USING THE 320 SERIES

CONTROL FUNCTIONS

When operating with the Simulator on and the transducer connected changes
made to Chart Speed, RTS Window, Surface Clutter, White Line, Contrast, and
the Units Control Panels are permanently remembered. When a transducer is
not connected, no changes are remembered.
CONTROL FUNCTIONS
Four knobs on the 320 control all user settings: M
C P
ONTROL ANEL
M K
ODE NOB
The M knob selects how the 320 locates the bottom
ODE
and graphs the information on the display. Turn the knob
until the pointer aligns with the desired mode of operation.
See Modes of Operation for more information.
G K
AIN NOB
The G knob controls the gain (sometimes called
AIN
sensitivity) of the sonar receiver. G
on or off. When the 320 is off, press G
on. Press and hold G
Medium Gain
4
and R .
ANGE
to turn the unit off.
AIN
Increasing the gain shows faint sonar returns from
High Gain
small bait fish and suspended debris in the water,
however the display may become too cluttered in
some water conditions. Increased gain is also
beneficial at deeper depths to maintain a good
bottom image and adequately show sonar returns
from deep objects. Decreasing the Gain eliminates
the clutter from the display, however if adjusted
too low may not show many faint sonar returns
that could be fish.
Turn the G
turn counterclockwise to decrease the gain. As you
turn the knob, only new sonar information being
Low Gain
graphed shows the affect of the gain change.
ODE
also powers the unit
AIN
to turn the unit
AIN
knob clockwise to increase the gain;
AIN
, G ,
AIN