4 GPSMAP 182/182C Owner’s ManualBASIC OPERATION > ADJUSTING THE BACKLIGHTThe Set Position,Track Control, Trackand Speed fieldsonly show while inSimulator Mode.To enter a simulated speed and heading from theMain Menu:1. Press MENU twice to display the Main Menu.2. Use the ROCKER to highlight the Systm tab, pressright then down until the field below the word Speed ishighlighted, and press ENTER.3. Use the ROCKER to enter a speed, and press ENTER.4. Use the ROCKER to highlight Track Control. PressENTER, and select a heading.5. Press ENTER to finish, and QUIT until you return to theMap Page.To adjust the simulated speed and heading from thePointer or Highway Pages:1. Press up on the ROCKER increase the speed in10 knot/kph/mph increments. Press down on the ROCKERto decrease the speed in the same increments.2. Press left and right on the ROCKER to steer the boat.Adjusting the BacklightThe GPSMAP 182/182C’s screen backlight is controlled with thePOWER key, and can be adjusted from any page.To adjust the backlight:1. Press and release the POWER key. The adjustment sliderwindow appears.2. Press the POWER key again to start the user-definedbacklight level. To adjust this level, press up or down onthe ROCKER. If you press POWER one more time, thebacklight is at the maximum setting.3. Press ENTER or QUIT when finished.