Sepura plc

Sepura is a global leader in the design, manufacture and supply of digital radio products, systems and applications developed specifically for business and mission critical communications. We are the market leader in the largest national TETRA markets in Germany and the UK and we are trusted by over 2 million users worldwide to provide their critical communications solutions.

Sepura is a global leader in the design, manufacture and supply of digital radio products, systems and applications developed specifically for business and mission critical communications.

Formed in 2002 in the technology hub of Cambridge, Sepura soon established a global commercial and technical footprint, enabling it to rapidly achieve market leadership in over 30 countries.

Sepura developed a leadership position in professional mobile radio (PMR) with its world class TETRA terminals, and a wealth of radio systems and applications expertise. This competence in professional communications meant Sepura became a valuable addition to the Hytera portfolio when it joined the group in May 2017.

Today, Sepura continues in its role as the trusted provider of advanced communications solutions which enable public safety organisations and security-conscious commercial users to address the communications challenges they face on a daily basis.

Products and services

Case Study: Improved communications for Meerwind Süd│Ost, Germany

The increasing demand for power to be generated from renewable sources has led to the development of a number of wind farms in the North Sea.  

One of these is Meerwind Süd│Ost which comprises a total of 80 wind turbines and is located over 100km off the coast of north-western Germany.  Combined, the 3.6MW turbines generate enough electricity to power around 360,000 homes.

The Challenge:

When selecting a communications solution for the new wind farm, the operators faced a number of requirements and challenges. 

Flexibility: the radio system needed to be flexible as it was to be used during construction, commissioning and operation.  Talkgroup requirements would also vary significantly according to the various operational stages.

Over-the-air re-programming: given the remote and challenging nature of the environment, it was important to be able to carry out remotely adjustments to talkgroups and other aspects of the system.

Common technology: to be able to cater for potential emergencies using a technology that was both shared with police and fire services and was also specifically designed for emergency service usage.

Advanced functionality: in an offshore environment the radio system can require complex functionalities such as priority and emergency calls, and automatic person location (APL).

Safety: wind farm operatives may be required to undertake dangerous tasks such as sea rescues, fire-fighting, dealing with oil spills, working at height and in enclosed spaces.  For this reason, a significant degree of redundancy and a high level of functionality in direct mode are vital aspects of the wind farm’s communication system.

The Solution:

The choice of a TETRA communication solution by Sepura was a logical step for Meerwind Süd│Ost. TETRA was able to meet all of the wind farm’s specific communication requirements and challenges, while Sepura was able to offer not only a very comprehensive technical solution, but also extensive experience and understanding of the wind farm sector.  Sepura’s solution utilised a combination of FR400 and Solo base stations, located at on-shore bases such as Bremerhaven and Esbjerg (in Denmark).  This infrastructure, which is being adjusted as the construction phase develops, provides the network on which Sepura TETRA radios operate.  The wind farm’s system utilises STP8000 and STP9000 hand-portables alongside SRG3900s mobile radios, which are primarily mounted in vessels.  These key elements are then supported both by Sepura’s robust accessories, including remote speaker microphones, and by a PC dispatcher.

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