Top So what makes a trunked system better?
OK, lets keep this simple! Lets look again at the above scenario where we have a tower site with many repeaters being used by different agencies and departments. In a conventional repeater system, at peak user periods, the chances are that half of the repeaters will be so busy that an average wait of several minutes to gain access to a clear channel will be common. In a trunked system, users have access to all repeaters in the system as they are made available to all users. In addition, voice channels are assigned automatically, eliminating the need for the operator to monitor and wait for a clear channel. The channels are assigned to users on a talkgroup basis, not as dedicated channels. When a user needs to talk, he presses his PTT and the system assigns an unused channel to that talkgroup and all other users on that group are directed to that channel/talkgroup pair automatically. The main difference between dedicated channels and assignable talkgroups is that the number of talkgroup
