10 Getting startedEnglish Getting 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 along key press is more than one second.The radio controls and their functions are summarized in thediagram and table on the following page.