Getting started 21About the keypad microphoneYour radio may have a keypad microphone installed. Thekeypad microphone has a PTT key as well as twelvealphanumeric keys, two scroll keys, and left and rightselection keys.The PTT key and the scroll and selection keys work in the sameway as those on the control head (see “About the radiocontrols” on page 19). The alphanumeric keys are used toenter letters and numbers.About the hand-held control headYour radio may have a hand-held control head installed, toenable you to operate the radio at a distance from the radiobody. The keys and controls work in the same way as thoseon the standard control head and keypad microphone, withthe exception of the volume up and down keys. The hand-held control head also has two additional function keys.The hand-held control head may have been configured toturn the radio on with a PTT press.The hand-held control head keys and their functions aresummarized in the following diagram and table.PTT key(press-to-talk)microphoneleft selection keyscroll keysalphanumeric keysright selection key
