Tait TP9400 Series P25, User Manual

Page: 76 / 178

76 Operating in P25 trunking mode
About P25 trunking
Your radio may be able to operate on a P25 trunking
system as well as a conventional repeater-based
system. On a conventional system, radio users
compete for access to individual channels, and one
channel can be overloaded with traffic while others
are often unused.
The trunking system allows several channels to be
automatically shared by a number of radio users.
These traffic channels are pooled and allocated, as
required, for the duration of a call. As calls are
completed, the traffic channels are returned to the
pool, to be used for other calls. This system means
reduced waiting times to make calls.
Checking that the system is
available
When you first switch to a talkgroup configured for
P25 trunking, the radio attempts to access the
network and register on a control channel.
If registration is successful, the trunking system
available icon
appears in the display.
Registration is unsuccessful
If registration is not successful, does not appear,
and the display shows No service .
The radio may sound five beeps, followed by a
repeating double beep. The double beep continues
until registration is successful.
Talkgroup 1
Zone 11
trunked system available
icon
talkgroup name
zone or site name
Menu
Talkgroup 1
No service
Menu