FAQ’s – Sepura

Sepura TETRA Radio FAQs | Mission Critical Communication & Secure Digital Radios

This page answers common questions about Sepura TETRA radios, secure digital communication devices, and hybrid broadband solutions used by emergency services, transport operators, utilities, and large enterprise organisations. Explore guidance on Sepura models such as the SCL3, SC20, SC21, SC23 and intrinsically safe STP8X radios, along with advice on secure communication features, network coverage, and integrating Sepura equipment into reliable mission-critical communication systems.

What are Sepura radios used for?

Sepura radios are professional TETRA two way radios designed for organisations that require secure, reliable, and mission-critical communication. They are widely used by emergency services, transport networks, utilities, airports, and large industrial organisations where dependable voice and data communication is essential.

Yes — Sepura radios are designed for secure mission-critical communication. They support advanced encryption, secure signalling, authentication protocols, and controlled network access, helping protect sensitive communications used by public safety and critical infrastructure organisations.

Yes. Sepura TETRA radios support voice calls, text messaging, status messaging, GPS location services, and data applications. These features allow teams to share information quickly and coordinate operations more efficiently across large networks.

Yes — Sepura radios are designed to operate in tough environments. Many models feature rugged construction, high IP ratings for water and dust protection, and durable components that perform reliably in field operations, transport networks, and industrial workplaces.

The Sepura SCL3 is a next-generation mission-critical communication device that combines TETRA radio technology with 4G and 5G broadband connectivity. This hybrid approach allows organisations to transition from traditional TETRA networks to modern broadband communication services while maintaining reliable push-to-talk communication.
The SCL3 combines smartphone-style functionality with dedicated emergency and push-to-talk controls, making it ideal for public safety, transport, and critical infrastructure teams.

The Sepura SC20 is a rugged TETRA hand-portable radio designed for mission-critical communication in demanding environments. It provides strong audio performance, reliable connectivity, and support for multiple frequency bands including UHF and VHF.
The SC20 is commonly used by public safety organisations, transport operators, and utilities that require dependable communication across large networks.

The Sepura SC21 is a compact and lightweight TETRA handheld radio that delivers powerful communication capabilities in a smaller device.  Key features include:

  • High-sensitivity reception for extended coverage
  • Integrated GPS positioning
  • Bluetooth and Wi-Fi connectivity
  • Clear, powerful audio

 

These features make the SC21 well suited for teams operating across large sites, transport networks, and complex operational environments.

The Sepura SC23 is a simplified TETRA hand-portable radio designed for organisations that need essential mission-critical communication without complex functionality.


With its simplified keypad and display, the SC23 is ideal for pool users, temporary staff, and operational teams in sectors such as transport, utilities, and airport operationsIt still delivers the rugged durability and clear audio performance expected from Sepura radios.

The Sepura STP8X is an extremely rugged ATEX and IECEx-certified TETRA radio designed for use in hazardous environments where explosive gases or dust may be present.
It is widely used in industries such as:

  • Oil and gas
  • Chemical processing
  • Mining
  • Utilities

The STP8X provides intrinsically safe communication while maintaining the reliability and performance required for mission-critical operations.

Sepura provides a range of software applications and system tools that enhance the functionality of its radios. These applications support capabilities such as:

  • Device and fleet management
  • Location tracking and GPS monitoring
  • Data messaging and workflow integration
  • Operational monitoring and reporting

These tools help organisations improve safety, coordination, and operational efficiency across large communication networks.

A TETRA radio (Terrestrial Trunked Radio) is a professional digital radio system used for secure, mission-critical communication. TETRA technology allows large organisations such as emergency services, transport operators, and utilities to operate reliable voice and data communication across wide geographic areas.

Sepura radios can be purchased from authorised suppliers such as 2826.  As a specialist provider of professional radio communication systems, 2826 can help you choose the right Sepura radios, accessories, and network setup to ensure reliable communication across your organisation.