User`s guide
ASTRO XTL 5000 Digital Mobile Radio with O5 Control Head 7
Introduction
Trunked Modes or Conventional Channels
Depending on how your radio is programmed, you can select 
conventional channels or trunked talkgroup. Conventional channels 
consist of a transmit and receive frequency pair, an associated 
squelch code pair, and a time-out timer value. See 
“Conventional 
Radio Features” on page 47.
Trunked modes consist of the system/announcement group/talkgroup 
combination and a time-out timer value. See 
“Trunking Operation” on 
page 61.
Field Programming
Other radio features may be slaved to the selected mode by field 
programming. This mode slaving means that the radio is 
preprogrammed to automatically give you the proper operation for 
each mode you select.
You may use the control head to program your own mode names. 
The names you assign are clearly shown in the alphanumeric display. 
You can see all the key operating information, including the mode 
selected or being scanned, and the on/off status of various features. 
The operating conditions are shown either by the display or by visual/
audio indicators, or by both.










