Getting started 25About the radio controlsThe radio controls are the PTT key, volume control,on / off key, scroll keys, selection keys and functionkeys. Some keys have functions assigned to bothshort and long key presses:■ a short key press is less than one second, and■ a long key press is more than one second.The radio controls and their functions are described inthe following sections.Name FunctionPTT key Press and hold to transmit and release tolistenVolume control Rotate to change the speaker volumeOn/off key Turn the radio on or off with a long pressLeft and rightselection keysAction determined by the text above theselection keyScroll keys Scroll up and down through a list of menuoptions, scroll left and right in messages,or select the Quick Access menuEmergencykeyActivates emergency modeFunction keys Programmed for frequently used optionsscrollkeyson/off keyvolumecontrolmicrophonesocketPTT key(press-to-talk)reddisplay speakergreenorangemicrophoneradio statusLEDsfunction keys1 to 4left selection key right selection keyemergencykey