Vexilar 107 Pro - Manual (Page 13)

GAIN CONTROL
The 107 Pro comes selected from the factory to run in
automatic gain mode. The unit will monitor the conditions
and adjust the gain, or sensitivity, to an optimum level. If
you wish, you can over ride this feature in the MENU set-
tings and adjust the gain manually. Then, you will press
the DEC button to decrease the gain level. Press the INC
button to increase the gain level.
RANGE CONTROL
The 107 Pro comes selected from the factory to run in
automatic range mode. The unit will monitor the depth
and change the range for you when the depth changes. You
can override this feature in the MENU setting and change
the range manually. Press the SHALLOW button to change
the range to the next shallower range. Press the DEEP but-
ton to change the range to the next deeper range.
SWEEP
SWEEP controls how fast the display moves across the
screen. This speed should, roughly, match the speed of the
boat. Press the SLOW button to slow down the display one
step. Press the FAST button to speed up the display one
step.
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