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Data View
From the Control Center, press the soft key labeled
"DATA" to see a split screen display with large digits on
the left and a forward scanning view on the right. The large
digits show the digital depth and, if your Twinscope is
equipped with the optional speed/temperature transducer,
the boat speed, surface water temperature, and distance
traveled log.
Range Adjustment
Press the button labeled "RANGE" to bring up the Range
Adjustment soft key menu. Press the button labeled
"AUTO" if you would like the Twinscope’s internal
microprocessor to automatically select and adjust the depth
range as bottom conditions change. To manually adjust the
depth, rotate the front panel knob or press either the range
buttons labeled "∩" or "∪" or rotate the front panel knob. If
you make a manual depth adjustment, the AUTO range
mode is turned off and will remain off until the button
labeled AUTO is again selected. Note: when in the AUTO
mode, the soft key labeled "AUTO" will be shown in
reverse video (white on black). To return to the main
forward looking menu, press the soft key labeled "LAST".
Log Res. (Distance log reset)
If your Twinscope is equipped with the optional speed/
temperature transducer, the Twinscope will automatically
keep a distance traveled log. You can reset this log to zero
by pressing the "Log Res." soft key.
Note: The Twinscope internal memory keeps the
Twinscope’s distance log data, even when power is
removed. To zero out the distance log, press the softkey
labeled “Log Res.”.
Sensitivity Adjustment
Press the soft key labeled "SENS." to bring up the choices
available for adjusting the Twinscope's receiver
sensitivity. Press the button labeled "AUTO" so that the
word AUTO is shown in reverse video (white letters on a
black background) if you would like the Twinscope to
automatically adjust its sensitivity for changing conditions.
To manually adjust the sensitivity, rotate the front panel
knob or press the button labeled “-Sens” or “Sens+” to
increase or decrease the receiver gain. Note that the soft
key shows a number which indicates the relative sensitivity
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