<P> In two - way radios with headsets , a push - to - talk button may be included on a cord or wireless electronics box clipped to the user 's clothing . In fire trucks or an ambulance a button may be present where the corded headset plugs into the radio wiring . Aircraft typically have corded headsets and a separate push - to - talk button on the control yoke or control stick . Dispatch consoles often have a hand - operated push - to - talk buttons along with a foot switch or pedal . If the dispatcher 's hands are on a computer keyboard , the user can step on the foot pedal to transmit . Some systems have muting so the dispatcher can be on a telephone call and the caller can not hear what is said over the radio . Their headset microphone will mute if they transmit . This relieves the dispatcher of explaining every radio message to a caller . </P>
<P> In two - way radios with headsets , a push - to - talk button may be included on a cord or wireless electronics box clipped to the user 's clothing . In fire trucks or an ambulance a button may be present where the corded headset plugs into the radio wiring . Aircraft typically have corded headsets and a separate push - to - talk button on the control yoke or control stick . Dispatch consoles often have a hand - operated push - to - talk buttons along with a foot switch or pedal . If the dispatcher 's hands are on a computer keyboard , the user can step on the foot pedal to transmit . Some systems have muting so the dispatcher can be on a telephone call and the caller can not hear what is said over the radio . Their headset microphone will mute if they transmit . This relieves the dispatcher of explaining every radio message to a caller . </P>
what is the function of the ptt button on a two-way radio
what is the function of the ptt button on a two-way radio
push - to - talk
push - to - talk