TETRA consultancy

About us

Biography                  Brian Murgatroyd, Principal Consultant            



Brian Murgatroyd is an experienced Chartered Engineer who has specialised in TETRA security over the last 11 years. He has been in the public safety radio telecommunications arena for over 30 years after leaving the Royal Air Force in which he served as an Engineer.

He has a first class honours degree in telecommunications and electronics and is a Chartered Electrical Engineer and a corporate member of the Institution of Engineering Technology (MIET).


He has been a member of ETSI TETRA Working Group 6 (Security) and the TETRA MoU Security and Fraud Prevention Group (SFPG) for 7 years and was chairman of both groups for four years until retiring from these positions at the end of 2006.


In his previous career with the UK Police IT organisation (PITO) he headed up the Communications Security section and has been heavily involved at a senior level in the successful implementation of the security functionality and features on the UK national emergency service communications system (Airwave). 


He has led on the following topics:

  • The management of the Airwave network evaluation process, ensuring that the system was built with the security functionality properly implemented.
  • Developing the strategy to ensure that all manufacturers’ terminals on the Airwave network have met specific and rigorous security standards in order to meet the system accreditation requirements.  
  • Managing the implementation of end to end encrypted radio terminals for specialist users requiring enhanced levels of security.  
  • Writing the functional and technical specifications for end to end encrypted covert and overt radio terminals and key management systems.
  • Development of the strategy for the introduction of air interface security features to the Airwave environment
  • Chairing the multi agency user Airwave security working group
  • Chairing the manufacturer’s security group which was responsible for the development of interoperable terminals on the Airwave network.


He is a regular conference speaker at international events in Europe and Asia on the subject of TETRA security and has presented papers at the IEE (now IET).


He now owns a telecommunications consultancy specialising in TETRA security and electronics and software development projects.

The consultancy work has consisted of:

  • Working for the UK government in defining security requirements for a future radio system; investigating the use of end to end encryption when working with DMO gateways and repeaters; advising on end to end key management implementation when used with multi-vendor terminals; developing a key management plan for key distribution. 
  • Working with a major TETRA terminal manufacturer on developing a strategy for FIPS 140-2 evaluation. 
  • Delivering TETRA security training.


Electronics and software development has been in the areas of:

·         Production of an embedded hardware solution for authenticating data transmission

·         Developing software for key management systems

·         Developing software for end to end encrypted data transmission

TETRA Security Training- Barcelona October 22nd 2009--see TETRA Association website- www.tetramou.com