ASTRO Digital XTS 2500  Model III 33
General Radio Operation
Zones and Channels
A zone is a grouping of channels. A channel is a group of radio 
characteristics, such as transmit/receive frequency pairs.
Before you use your radio to receive or send messages, you should 
select the zone and channel.
Select a Zone
Use the Menu
1 Press U to find =21(.
2 Press D, E, or F 
directly below =21(.
The current zone (in this 
case, 32/) flashes and the 
channel name (',631:), 
does not flash.
3 Press U to find the zone you 
want. For example, ),5(.
4 Press h to confirm the 
displayed zone and channel. 
OR
Press the PTT button to 
transmit on the displayed 
zone/channel.)
=21(  
32/',631:
),5( ',631:              
),5( ',631: