Motorola XPR 4300 ユーザーズマニュアル
Identifying Radio Controls
English
5
Push-To-Talk (PTT) Button
The PTT button on the side
of the microphone serves
two basic purposes:
of the microphone serves
two basic purposes:
•
While a call is in
progress, the PTT button
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 11).
a new call (see Making a Radio Call on page 11).
Depending on programming, if the Talk Permit Tone is enabled,
wait until the short alert tone ends before talking.
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.
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
Emergency Call.
call is interrupted, for example when the radio receives an
Emergency Call.
You can turn off the Channel Free Indication tone by
disabling all radio tones and alerts (see Turning Radio
Tones/Alerts On or Off on page 22).
disabling all radio tones and alerts (see Turning Radio
Tones/Alerts On or Off on page 22).
Switching Between Analog
and Digital
Mode
Each channel in your radio
can be configured as an
analog channel or a digital
channel. Use the Channel
Rocker to switch between
an analog or a digital
channel.
can be configured as an
analog channel or a digital
channel. Use the Channel
Rocker to switch between
an analog or a digital
channel.
When switching from digital
to analog mode, certain
features are unavailable.
to analog mode, certain
features are unavailable.
Your radio also has features available in both analog and digital
mode. However, the minor differences in the way each feature
works does NOT affect the performance of your radio.
mode. However, the minor differences in the way each feature
works does NOT affect the performance of your radio.
NOTE: Your radio also switches between digital and analog
PTT Button
CH+
CH -
P 1
P 2
Channel Rocker
NAG_6880309T18-D.book Page 5 Friday, April 11, 2008 12:40 PM