Identifying Radio Controls
Push-To-Talk (PTT) Button
The PTT button on the side of the radio serves two basic
•While a call is in progress, the PTT button allows the radio to
transmit to other radios in the call.
Press and hold down PTT button to talk. Release the PTT
button to listen.
The microphone is activated when the PTT button is pressed.
•While a call is not in progress, the PTT button is used to make
a new call (see Making a Radio Call on page 25).
If the Talk Permit Tone (see Turning the Talk Permit Tone On
or Off on page 93) or the PTT Sidetone is enabled, wait
until the short alert tone ends before talking.
During a call, if the Channel Free Indication feature is
enabled on your radio (programmed by your dealer), you
will hear a short alert tone the moment the target radio (the
radio that is receiving your call) releases the PTT button,
indicating the channel is free for you to respond.
You will also hear the Channel Free Indication tone if your
call is interrupted, for example when the radio receives an
You can turn off the Channel Free Indication tone or the
PTT Sidetone by disabling all radio tones and alerts
(see Turning the Radio Tones/Alerts On or Off on