Eagle FISHMARK 640C Installation And Operation Instructions Manual page 46

The Main Menu commands and their functions:
Screen command changes the contrast, brightness or display mode.
Sounds command enables or disables the sound, set the volume or set
the alarm style.
Transparency command adjusts the level of transparency for dialogs.
Sonar Alarms command turns sonar alarms on or off and changes
alarm thresholds.
Units of Measure command changes the depth, speed, distance, or
temperature units.
Set Keel Offset command changes the depth offset of the keel from the
transducer.
Calibrate Water Speed command calibrates the speed measurement.
Reset Water Distance command resets the log of distance traveled
back to zero.
Transducer Type command sets the type of transducer connected to
the unit.
Sonar Simulator command scrolls simulated data on the sonar chart.
Reset Options command resets all options to factory default settings.
Popup Help command turns popup help on or off.
Set Language command chooses which language text appears in.
Software Information command shows the product name and soft-
ware version.
Pages
The unit has three Page display options, accessed by pressing the
PAGES
key. The list of display options appears in the following image.
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