ALFA - Rev. 1.15 Page 7 of 18B ack lig h tIndicates if backlight is ON or OFFEnable/disable backlight:Press and hold for 5 secondsThe backlight intensity can be set in 10 steps after backlight is turned ONStep 1 = lowest intensity, step 10 = highest intensityPress to increase intensityPress to decrease intensityALFA stores the last settingPress to continueBacklight will turn OFF automatically after 30 seconds, if ALFA is not in Flight ModeBacklight will remain ON while ALFA is in Flight Mode