2
BASIC OPERATION
2-3
■ Transmitting and receiving (continued)
While receiving a call, push [PTT] to talk in the full duplex 
mode* like a telephone call.
L In the Full Duplex mode, the [TX/RX] indicator lights 
orange.
L Turn [PWR/VOL] to adjust the audio output level. Do 
not cover the speaker or microphone.
3
Talk while receiving a call
About the Simplex mode:
If the communication mode is set to Simplex by your 
dealer, you have to take turns to communicate: Push PTT 
to talk, release to receive.
LPush PTT after the other person nishes talking.
L Saying "Over" at the end of your talk makes the 
communication smooth.
About the Back Light function:
Depending on a preset, the Back Light function operation  
differs. (p. 4-5)
• Always OFF:  Does not light.
• Always ON:  Is always lit.
• On operation:   When a Call is received or a key 
(except [PTT] and [PWR/VPL]) is 
pushed, the Back Light lights, then 
automatically turns OFF after 5 
seconds.
NOTE: When using the Audio Recording function
The recorded audio is stored into the internal memory 
on power OFF. Do not remove the battery pack until 
"POWER OFF…" is disappeared. Otherwise the recorded 
audio may be lost.
Turning OFF the power:
Turn [PWR/VOL] maximum counter clockwise  until it 
makes a “click” sound.
L Wait for 10 seconds before you turn ON the transceiver 
again.
L Before you remove the battery pack from the 
transceiver, be sure that the transceiver power is OFF 
(The LCD is blank). (p. 1-2)
マイクマイク
Blinks orange
Hold down
Microphone
Turn
Power Off...
* Depending on a preset. Ask your dealer for details.