More users need to be given access to the same number of channels: trunking gives you efficient and automatic channel sharing.

Users are demanding a wider geographical area of use than is economically viable with most conventional radio systems. MPT1327 trunking systems can be organized in wide-area switched networks.

Availability of a digital control channel makes it possible to implement a number of custom radio dispatch applications such as dynamic regrouping, messaging, paging, GPS, remote-controlled alarm systems, telemetry, etc.

WHAT IS PROTOCOL MPT1327
Protocol MPT1327 is a family of standards which defines a trunking system for Private Mobile Radio (PMR).

A conventional PMR service offers the user a single channel. When the user wishes to make a call, this channel may well be occupied by another user. The prospective user must wait until the end of the conversation and then compete with others to obtain the vacant channel.

In a trunking system, a set of channels shares the communication demands of the users. If no channel is free at the time a user makes a call, the call will be placed on hold for a few seconds until any channel becomes available. As a result, the user has less time to wait and enjoys a better quality of service.

WHY WAS IT DEVELOPED
Trunking was developed because radio spectrum throughout the world is becoming congested. Dynamic growth in mobile communications has made channel availability very difficult and the increasing consumer demand for the benefits of mobile communications means that more and more users need to be given access to the same number of channels, without any loss of quality of service.

At the same time, users are demanding a wider geographical area of use than is economically viable with most conventional PMR radio systems.

Advances in technology have allowed trunking techniques, previously only associated with hard wire communications, to be applied to radio networks. These allow more efficient use of spectrum.

The time is right for trunking and Protocol 1327.

Go to top