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Sepura is a global leader in TETRA

Throughout its history, Sepura has been at the heart of TETRA, with over two million Sepura TETRA digital radios deployed worldwide

Explore TETRA radios

What is TETRA?

Terrestrial Trunked Radio

TETRA, or Terrestrial Trunked Radio, is a technology that was designed specifically for the private mobile radio market, with public safety features at the fore. It offers a complete, resilient and totally secure, service-rich communications solution.

Proven technology with security and reliability at its core

Currently in operation in thousands of communications systems worldwide, it is a proven technology and, as an open, international standard – defined by ETSI, the European Telecommunications Standards Institute, in 1995 – it gives users access to a multi-vendor market.

Its reliability, availability and security are determining factors in its success. Additionally, TETRA’s interoperability in the event of a major incident means that public safety agencies such as police, fire and ambulance services can instantly communicate with transport staff.

Specifically designed for use by government agencies and emergency services, it has become the worldwide standard of choice for an increasing range of sectors seeking the best critical communications technology available.

TETRA has the major advantage over cellular mobile systems in being able to support a wide variety of specialised, instant Push-To-Talk (PTT) voice call applications, including group, broadcast and individual calling, not to mention Direct Mode Operation (DMO) communications.

Also, unlike commercial cellular networks, TETRA provides coverage and capacity exactly where it is required, even during busy periods, and delivers much higher levels of redundancy, reliability, availability, robustness and security.

Sepura TETRA Radios

Secure Public Radio

Sepura's TETRA radios deliver excellent coverage, security and reliability through a scalable and cost-effective platform; delivering outstanding audio through advanced audio processing and exceptional loudspeakers.

Rugged, hard-wearing and dependable, Sepura TETRA radios also offer superb functionality, boasting excellent water and dust resistance and unique Water Porting technology, our radios are designed to keep communications clear at all times.

Our ATEX/IECEx Intrinsically Safe options function in the most arduous conditions, providing loud, clear communication that you can rely on.

For optimum comfort and practicality we have an extensive range of accessories which allow critical communications solutions to be perfectly tailored to the user's needs.

For operational efficiency our range of applications streamlines essential processes and enables automated processing such as automatic vehicle location (AVL), automatic person location (APL) and in-building tracking.

Sepura has taken a leading role in the development of the TETRA Standard and driven innovation in TETRA products. Sepura is the partner of choice for advanced TETRA communications.

Key benefits of TETRA radio and tetra system


TETRA is an open standard enabling operation with multiple vendors


Supporting TETRA encryption (E2EE and AIE) and authentication


Sepura TETRA radios are built for the most arduous conditions

Robust Robust

Unsurpassed system reliability thanks to intelligent network resilience and robust design

Spectral Efficiency Spectral Efficiency

4 time slots in a single carrier

Global Standard Global Standard

Used in over 100 countries worldwide

High availability High availability

Inherent capability to design in network redundancy

High quality communications High quality communications

Supports voice and data transmission

Sepura TETRA products

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