TETRAPOL (Terrestrial Trunked Radio POLice) is a digital

professional mobile radio Professional mobile radio (also known as private mobile radio (PMR) in the UK) are person-to-person two-way radio voice communications systems which use portable, mobile, base station, and dispatch console radios. PMR radio systems are based on ...

standard, as defined by the Tetrapol Publicly Available Specification (PAS), in use by professional user groups, such as public safety, military, industry and transportation organizations throughout the world.

Airbus Defence and Space Airbus Defence and Space is the division of Airbus SE responsible for the development and manufacturing of the corporation's defence and space products, while also providing related services. The division was formed in January 2014 during the ...

is the main supplier of this technology.

Description

TETRAPOL is a fully digital,

FDMA Frequency-division multiple access (FDMA) is a channel access method used in some multiple-access protocols. FDMA allows multiple users to send data through a single communication channel, such as a coaxial cable or microwave beam, by dividing ...

system for closed user groups, standardizing the whole radio network from data and voice terminal via base stations to switching equipment, including interfaces to the

Public switched telephone network The public switched telephone network (PSTN) provides infrastructure and services for public telecommunication. The PSTN is the aggregate of the world's circuit-switched telephone networks that are operated by national, regional, or local telep ...

and data networks. End-to-end encryption is an integral part of the standard.
Tetrapol Publicly Available Specifications
(registration required) has detailed information and an overview picture.

History

Matra/EADS developed TETRAPOL and delivered an operational digital trunked

radio Radio is the technology of signaling and communicating using radio waves. Radio waves are electromagnetic waves of frequency between 30 hertz (Hz) and 300 gigahertz (GHz). They are generated by an electronic device called a tr ...

system at an early date. Among the first users was the French

National Gendarmerie The National Gendarmerie (french: Gendarmerie nationale, ) is one of two national law enforcement forces of France, along with the National Police. The Gendarmerie is a branch of the French Armed Forces placed under the jurisdiction of the Mini ...

in 1988 for its RUBIS system. TETRAPOL currently has 80 networks deployed in 34 countries. EADS (Connexity) and Siemens (S-PRO) are among the major manufacturers of professional radio systems based on the TETRAPOL specification. In 2012 the Brazilian federal police bought a networks to use the FIFA World Cup.

Alternative Solutions

TETRA Terrestrial Trunked Radio (TETRA; formerly known as Trans-European Trunked Radio), a European standard for a trunked radio system, is a professional mobile radio and two-way transceiver specification. TETRA was specifically designed for use by ...

is an open standard by

ETSI The European Telecommunications Standards Institute (ETSI) is an independent, not-for-profit, standardization organization in the field of information and communications. ETSI supports the development and testing of global technical standard ...

. TETRA is a more recent standard than Tetrapol taking over concepts from cell phones. It is favored in Europe for its extensibility and lower entry barrier for competitors in the market. Networks can be found worldwide. dPMR is an open standard by

. dPMR is a more recent standard than TETRA. It offers voice and data and a better spectrum efficiency than TETRA. It can also be used in unlicensed 446 MHz spectrum. DMR is a limited open digital mobile radio standard defined by

and used in commercial products around the world. It's also seen widespread success within the ham radio community mainly due to low costs. P25 is an open standard by the

Telecommunications Industry Association The Telecommunications Industry Association (TIA) is accredited by the American National Standards Institute (ANSI) to develop voluntary, consensus-based industry standards for a wide variety of Information and Communication Technologies ( ICT) ...

(TIA). The system is favored in North America for its upgrade option on existing analogue radio networks in the area. Other networks can be found worldwide (South and Central America, Asia, Europe, Middle East, Oceania and Africa).

Notes

External links

TETRAPOL Portal

* ttp://www.selecom.fr/index.php?famille=3&rub=41&langue=ENG SELECOMis a well-established French designer and manufacturer of TETRA / TETRAPOL repeaters
Digital Radio: Wireless Solution for Audio and Date Trafic
is a paper that Prof. Dr. Cristiano Torres do Amaral presented in a conference about Tetrapol. {{DEFAULTSORT:Tetrapol Trunked radio systems Emergency communication