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TETRA is the European version of trunked radio, similar to Project 25. TETRA is a European Telecommunications Standards Institute (ETSI) standard, [4] first version published 1995; it is mentioned by the European Radiocommunications Committee (ERC). [5]
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.
The systems makes use of the available frequency allocations using time-division multiple access (TDMA) technology with four user channels on one radio carrier with 25 kHz spacing between carriers. The first ruggedized high-speed smartphone based on the TETRA network was launched on 26 May 2011 [ 1 ] [ 2 ]
Several hand-held Project 25 radios used around the world. Project 25 (P25 or APCO-25) is a suite of standards for interoperable digital two-way radio products. P25 was developed by public safety professionals in North America and has gained acceptance for public safety, security, public service, and commercial applications worldwide. [1]
The TETRA trunked radio standard was developed by the European Telecommunications Standards Institute (ETSI), as a digital alternative to analogue trunked systems. However, TETRA, with its enhanced encryption capability, has developed into a higher tier (public safety) product, currently mainly used by governments, some larger airports and government-owned utilities.
Sepura Limited is a British telecommunications equipment provider that develops and supplies radio terminals, accessories and software applications for business and mission critical communications. The company specialises in Terrestrial Trunked Radio (TETRA) and LTE (telecommunication) technology.
The Airwave network is based on the specialist Terrestrial Trunked Radio (TETRA) specification. Airwave was acquired by Motorola Solutions in February 2016 and now operates as a wholly owned subsidiary. [2] The Airwave network is due to be replaced by the LTE-based Emergency Services Network in 2026. [3]
Tetra is a scalable radio network technology used by emergency services, other government agencies and the private sector. Dimetra IP is built around Motorola's IP (Internet Protocol) core technology while Tetra is an open standard maintained by the European Telecommunications Standards Institute.