190-01553-01 Rev. A Garmin GTR 200 Pilot’s Guide3GTR 200Control DescriptionLARGE andSMALLKnobsThe LARGE right (MHz) and SMALL right (kHz) knobs are used fortuning frequencies and data entry. Press the SMALL Knob to select menuitems or access the Frequency Menu from the main screen.SOFTKEYSThe GTR 200 features two User-defined softkeys. Softkeys are definedin Configuration Mode, see the Appendix for information on configuringsoftkeys. Softkeys can be disabled or assigned to one of the following:• PILOT PTT ( ) - Pilot Push-to-Talk can be used in place of or asa back up to a remote Push-to-Talk switch.• MUSIC ON/OFF ( ) - Turns music input ON/OFF. N/A whenIntercom is configured off. Press and hold to toggle COM MuteMusic.• USER LIST ( ) - Provides quick access to the COM UserFrequencies.• PILOT ISOLATION ( ) - Isolates the Pilot from ICSCommunication and music. N/A when Intercom is configured off.• TUNE EMERGENCY ( ) - Quickly tunes and activates theemergency frequency (121.500 MHz).