12 Basic Operation
display, along with the current channel name e.g. 
REGION2
.
2. Press the up and down keys ( / ) to 
scroll through the list of available channels, until 
the control head display shows desired channel 
name or
use the keypad (
0
 to 
9
) to enter the new channel 
number.
3. Press the enter key ( ) to initiate the call.
Note: You cannot change channels while 
transmitting.
Selecting a 
Group
A group is a collection of channels grouped 
together for scanning or voting. Select a group the 
same way as a channel.
Receiving a 
Call
Your radio remains muted until there is valid traffic 
on the channel your radio is currently on.
The 
BUSY
 indicator in the control head display 
appears when there is traffic on the channel, 
although the radio’s squelch and programmed mute 
features may prevent you from hearing the traffic. 
See “What You Hear on a Channel” on page 14.
Consult your system manager or the person who 
programmed your radio about the special signaling 
options programmed in your radio.