Systems Infrastructure


NEBULA infrastructure for TETRA mobile radio networks delivers excellent coverage, security and reliability in a platform designed for efficient implementation and cost-effective scalability. NEBULA is the only TETRA system that is fully 100% Ethernet /IP based. A secure and reliable network can be built with distributed switching, distributed intelligence, and complete fault-tolerant redundancy, offering lower network costs due to the use of commercially available off-the-shelf equipment.

The Switching Control Node (SCN) is responsible for providing intelligence to the network, integrating user settings, and providing access to standard PMR services.

Our wide range of base stations, fixed and portable, are built to operate in diverse and challenging conditions delivering the best performance in every operational scenario, indoor or outdoor. 

Sepura's Network Management System (NMS) manages and operates the network infrastructure, across TETRA and/or LTE radio technologies.

Radio access

Site Base Station (SBS)

  • Fixed unit installed indoor or outdoor
  • Up to 75 watts of output power
  • Triple diversity enlarging covering area, reducing number of base stations required
  • 100% Ethernet/IP design, both at signalling and voice level, unique in the TETRA market

More details

Mounted Base Station (MBS)

  • Wall or tower mounted at minimum cost
  • No additional unit required at bottom of tower, ensuring cost-effectiveness
  • Improve coverage in shadow zones
  • Easy upgrade to two TETRA carriers with additional unit

More details

Portable Base Station (PBS)

  • Fully portable Mounted Base Station using accessory to facilitate transportation

More details

Deployable Base Station (DBS)

  • Reduced size, easily transportable
  • Tough, operates in harshest of weather conditions
  • Isolation mode
  • Upgradable to 4 carriers by adding additional unit

More details

Solo Base Station

  • Compact, single-carrier TETRA base station
  • Spectrum-efficient IP connectivity
  • Low power consumption
  • Operates in stand-alone or network modes

More details

Network management