GPSMAP 188/188C Sounder Owner’s Manual 79U SING SONAR > SONAR PAGEUsing the Adjustment MenuThe Adjustment menu gives you direct access to the settings andfeatures most commonly used on the Sonar Page. The optionselected currently appears in the upper left of the display.Press MENU andhighlightAdjustments to seea list of all optionsand their currentsettings.To select an adjustment option from the Sonar Page:1. Press the ROCKER left/right to scroll through the options inthe upper left of the display.2. Press ENTER to access the option’s adjustment window.Or1. Press MENU, highlight Adjustments and press ENTER. Alist of all options and their current settings appears, with theselected option highlighted.2. Press up or down on the ROCKER to select the option, andpress ENTER to access the adjustment window.3. To exit any of the adjustment options, press QUIT.To change an Adjustment menu setting:1. Select an adjustment option to change using one of thetwo methods described previously. The adjustment windowautomatically times out and disappears when the unit is idlefor 20 seconds.2. Press the ROCKER up or down to place the pointeror setting bar at the setting, range, or percentage(Off, 1-100%).3. Press ENTER or QUIT to exit the adjustment window,or press left or right on the ROCKER to view anotheradjustment window.To change a setting back to Normal or Auto:1. While on the adjustment window for the option, pressMENU.2. Select the setting, and press ENTER.
