User's Guide

Other Systems
Features that are available to the radio users under this
system are available in this chapter.
Push-To-Talk Button
The Push-to-Talk (PTT) button serves two basic purposes:
• While a call is in progress, the PTT button allows the
radio to transmit to other radios in the call. 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.
Long press the PTT button to talk. Release the PTT button
to listen.
If the Talk Permit Tone or the PTT Sidetone
is enabled,
wait until the short alert tone ends before talking.
If the Channel Free Indication feature is enabled on your
radio (programmed by your dealer), you 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 hear a continuous Talk Prohibit Tone if your call is
interrupted. You should release the PTT button if you hear
a continous Talk Prohibit Tone.
Programmable Buttons
Depending on the duration of a button press, your dealer
can program the programmable buttons as shortcuts to
radio functions.
Short press
Pressing and releasing rapidly.
Long press
Pressing and holding for the programmed duration.
NOTICE:
See Emergency Operation on page 395 for more
information on the programmed duration of the
Emergency button.
Assignable Radio Functions
The following radio functions can be assigned to the
programmable buttons.
Audio Ambience
Allows the user to select an environment the radio is
operating in.
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