Our Tetra solution is based on the HYTERA Accessnet © Tetra infrastructure, which is developed in Germany. As the only German manufacturer, Hytera Communications Co. Ltd. Offers a comprehensive infrastructure portfolio of TETRA radio network components. On the basis of system controller nodes and base stations from our own ACCESSNET®-T IP range of products, we design and set up customized professional mobile radio networks - from single-cell private radio networks up to nation-wide networks. Flexibility is our greatest asset. Apart from the versatile configuration possibilities of ACCESSNET®-T IP, you profit from its unique scalability, which makes a later network expansion very easy.
Our Infrastructure is used world-wide in over 40 countries in both private and government sectors. One of the largest Civil defence system is the Malaysian Civil defence network, which has over 500 Sites, Multiple Dispatchers and control room and more than 10.000 Active users and a capacity of 70.000 users. This network is used by all Public service organizations, from Army, Police, Fire brigades, Ambulance services and others.
TETRA is the acronym of Terrestrial Trunked Radio and it is a global Standard for the digital trunked radio. As a digital method of transmitting mobile radio signals, TETRA is characterized by high voice quality and improved spectrum efficiency.
This standard was developed by the European Telecommunications Standards Institute (ETSI) in partnership with leading manufacturers, operators and user organisations. Secure voice and data transmission, excellent functionality and a wide range of performance features guarantee the adaptability needed to meet the challenging requirements of professional mobile radio and its usage-critical applications.
As a system platform, TETRA is able to bring together the services for trunked radio and mobile data transmission that were previously confined to isolated infrastructures. This increases flexibility and helps to relieve cost pressures on network operators and users.
Tetra Base stations:
The Digital Indoor Base Station (DIB-500) is proposed as a base station in ACCESSNET®-T IP network. The base station is responsible for radio coverage in a defined radio coverage area. For this purpose, up to eight carriers are available depending on the antenna coupling variant. It can thus provide as many as 32 radio channels (four radio channels per carrier) for the communication of the mobile terminal equipment, via which voice and data is/are transmitted in accordance with the TETRA standard (Terrestrial Trunked Radio).
The Base stations are linked together through an IP network (Microwave or Fibre Optic Links). The System can be anything from single site to a national network with multiple IP-Nodes.
Feature set of the Tetra Platform
There are multiple ways to communicate on the Tetra infrastructure, depending on the needs of the user groups. All communications are secured, so that someone not part of a specific communication can’t interfere or listen into it. Each of the features are depending on the permissions a Terminal has on the main database. They can be individually granted to a terminal.
The number of workgroups available is unlimited and will be designed to the Public Services section requirement. A user can belong to multiple groups. When part of a specific group the user can be reached wherever they are throughout the geographical area of the network. Different group calls are available:
Individual calls on the Tetra network is similar to the phone calls on a GSM network but with state of the art security features. The user can either dial the number or select a name in the contact list. These call can only be one within the radio fleet the terminal are member of. High ranking officers can be given permissions to make calls through all terminals.
There are 2 ways of making individual calls:
The Tetra network has the highest security feature in the modern radio communication world.