13
English
RADIO CALLS
RADIO CALLS
SELECTIVE CALL
Making a Selective Call
You can make a selective call, to a particular radio, 
known as an individual call, or group of radios, known 
as a group call. 
To make a Selective Call:
1. Press the PTT or Call Button (depending on the 
way your radio has been programmed by your 
dealer) to set up the call.
2. Wait until the conversation has been set up, 
which means you are authorised to use the 
system.
3. Talk with your mouth 2.5 – 5 cm from the 
microphone. Release PTT to listen.
4. The red indicator lights up when the radio is 
transmitting.
Your radio may be configured for ‘Transmit Inhibit’ 
under certain conditions (e.g. when the channel is in 
use by others) in which case, the channel busy tone 
will sound when you press the PTT or call button to 
indicate that transmission is inhibited.
When the channel is free, the Channel Free beep 
will sound, and you can make a 
call.
If your radio is equipped with a transmit time out 
timer (TOT), a warning tone 
will 
sound a few seconds before the transmission is cut 
off. Your radio may be programmed to inhibit 
retransmission within a preset time.
GP330_UG.book  Page 13  Thursday, September 6, 2007  11:51 AM