- TETRAPOL
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.Description
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 thePublic switched telephone network and data networks. End-to-end encryption is an integral part of the standard.[http://www.tetrapol.net/www/tech/pas.php Tetrapol Publicly Available Specifications] has detailed information and an overview picture.
History
Matra/EADS developed TETRAPOL and delivered an operational digital trunked
radio system at an early date. Among the first users was the FrenchGendarmerie Nationale in1988 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.
Migration of country-wide analogue PMR networks to digital ones can be slowed down due to budget controversies. In the example of Switzerland, after 10 years only 5 of 24 cantons use the TETRAPOL network. Due to technology problems and high costs the remaining cantons are very reluctant to invest. A similar discussion took place in Germany with regard to TETRA introduction.
EADS (Connexity) and Siemens (S-PRO) are among the major manufacturers of professional radio systems based on the TETRAPOL specification.
Alternative Solutions
TETRA is standardized byETSI . TETRA is a more recent standard than Tetrapol.P25 is the worlds most deployed digital PMR standard, with the majority of networks located in North America. Over recent years networks have now been installed in South and Central America, Asia, Europe, Middle East, Oceania and Africa. P25 isTelecommunications Industry Association (TIA) open standard.External links
[http://www.tetrapol.net TETRAPOL Portal] [http://www.tiaonline.org/standards/technology/project_25/ TIA/P25 Portal]
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