Garmin GPSMAP 235 Sounder - Manual (Page 35)

Range Modes
The sounder features three depth range modes: auto, manual, and window.
Auto is the default setting and continually adjusts the screen display to show the
maximum amount of detail possible, while always showing the bottom; manual
allows you to adjust the sonar display’s depth using the R keypad; window lets
you establish a starting depth (top) and length (span) for the sonar display.
Switching Between Ranges and Modes
The R keypad is used to switch between manual and auto modes. Window
mode, however, can only be turned on from the sounder options menu (see page
31).
To switch from auto to manual mode:
1. Press the R keypad up or down until the desired depth range is displayed on the
scale at the right side of the page.
2. Press T to confirm the selected range or Q to return to auto mode.
To adjust manual range or switch from manual to auto mode:
1. Press the R keypad up or down until the desired depth range is displayed, then
press T to confirm the selected depth.
2. You can easily switch to auto mode if you press and hold the R up or down until
you hear a repeated beep. ‘Auto’ will be displayed in the function field at the top
right corner of the page. Press T to confirm.
To adjust the window range any time after the unit has been put in window
mode:
1. Press R once in any direction. The window range submenu will appear.
2. Enter values for the ‘top’ and ‘span’ fields and press T . When finished, press
Q .
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SECTION
3 SOUNDER PAGE
Range Modes
A. Auto mode will show the most information
available while always keeping the bottom in
view.
B. The range scale will be highlighted when using
the arrow keypad to adjust manual range mode
or when switching between auto and manual
mode.
A B
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