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Terrestrial Trunked Radio (TETRA) is a digital trunked mobile radio standard developed by the European Telecommunications Standards Institute (ETSI). The purpose of the TETRA standard was to meet the needs of traditional Professional Mobile Radio (PMR) user organisations such as those listed below.

The air interfaces, network interfaces as well as the services and facilities are specified in sufficient detail to enable independent manufacturers develop infrastructure and radio terminal products that would fully interoperate with each other. For example, radio terminals from different manufacturers can operate on infrastructures from other manufacturers. 

The ability for full interoperability between different manufacturer's products is a distinct advantage of open standards developed by ETSI. As the TETRA standard is supported by several independent manufacturers this increases competition, provides second source security and allows a greater choice of terminal products for specific user applications.

  • Public Safety
  • Transportation
  • Utilities
  • Government
  • Military
  • PAMR
  • Commercial & Industry
  • Oil & Gas

Because the TETRA standard has been specifically developed to meet the needs of a wide variety of traditional PMR user organisations it has a scaleable architecture allowing economic network deployments ranging from single site local area coverage to multiple site wide area national coverage.   Besides meeting the needs of traditional PMR user organisations, the TETRA standard has also been developed to meet the needs of Public Access Mobile Radio (PAMR) operators.

  • Overview of TETRA, ETSI, D. Gray (ppt)
  • TETRA Release 2 ETSI (ppt)
  • TETRA Enhanced Data Service (TEDS), M. Nouri, ETSI, March 2003 (ppt)
  • Keynote Adress of ETSI DG to the TETRA WC 2002 (ppt)
  • TETRA Architecture and Interface, TETRA WC 2002 (ppt)
  • ETSI General TETRA  Presentation, 2000 (ppt)
  • Comparing TETRA with other technologies, Mason, 2006 Dubai (pdf)

Sources and External Links





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Last modified: September 20, 2023