User`s guide

15 Basic Radio Operation

(cont.)

Transmitting

Conventional Modes

1. Turn the radio on and select the desired mode.

2. Do not interrupt another user. If the mode on which

you are transmitting is programmed to receive PL

(Private Line) or DPL (Digital Private Line),

ensure that the channel is not in use by listening to

activity. If the green LED is solid while receiving

(PTT released), this will indicate that the channel is

currently busy and you should not transmit.

3. When the channel is available, press and hold the

PTT switch and speak slowly and clearly into the

microphone. The red Tx LED will light continuously

while the radio is transmitting. When you have

finished talking (transmitting), release the PTT to

listen (receive).

Note:

• If a mode is programmed for receive only, any

attempt to transmit on that mode will cause an

invalid-mode tone to sound until the PTT switch

is released.

Trunked Systems

1. Turn the radio on and select the desired trunked

mode.

2. Press the PTT switch. Speak slowly and clearly into

the microphone area. The red Tx LED will light

while the radio is transmitting. When your

transmission is completed, release the PTT to listen.

Notes:

• If you hear a busy tone (a low-frequency “bah-

bah-bah-bah”), release the PTT switch and

wait for a call-back tone (sounds like“di-di-

dit”). When you hear the call-back tone you will

have three seconds to press the PTT switch,

allowing you to make your call without getting

another busy signal.

• If a continuous talk-prohibit tone is heard when

the PTT switch is pressed, it means that the

radio is out of range and you will not be able to

transmit.

Rx/Tx