English12 Getting startedGetting startedThis section provides a brief description of your radio’sbasic operation. If you need further information, contactyour radio provider.Radio controlsThe radio controls are the PTT key, volume control, on/offkey, channel selection keys and function keys. Some keys mayhave functions assigned to both short and long key presses:■ a short key press is defined as less than one second, and■ a long key press is more than one second.The radio controls and their functions are summarized in thefollowing diagram.