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TETRAPOL is a digital professional mobile radio 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.


TETRAPOL is a fully digital, FDMA, professional mobile radio 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 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.


Matra/EADS developed TETRAPOL and delivered an operational digital trunked radio system at an early date. Among the first users was the French National Gendarmerie in 1988 for its RUBIS system.

TETRAPOL currently has 80 networks deployed in 34 countries and claims 70% of the European Digital public mobile radio (PMR) market.

EADS (Connexity) and Siemens (S-PRO) are among the major manufacturers of professional radio systems based on the TETRAPOL specification.

Alternative Solutions[edit]

TETRA is an open standard by ETSI. 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.

P25 is an open standard by the Telecommunications Industry Association (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).

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