TETRA Licence Agreement

SOFTWARE RADIO TECHNOLOGY PLC TETRA Licence Agreement Software Radio Technology plc ("SRT" or the "Company") is pleased to announce that it has signed a TETRA licence agreement with Switzerland based Swiss Space Sensors Technology AG ("SSST"). SRT has received an upfront payment of US$225,000 and will receive royalties based upon sales achieved by SSST in the future. Under the terms of the agreement there are no ongoing costs, warranties or obligations for SRT. SSST is developing telecommunication technologies for the TETRA and WiMAX networks with cooperation from Ecole Polytechnique Federale de Lausanne in Switzerland. SSST is a member of the Stratxx Near Space Technology AG group. -ends- Enquiries: Software Radio Technology plc +44 (0)1761 409500 Simon Tucker simon.tucker@softwarerad.com Chief Executive Officer Westhouse Securities Limited +44 (0) 20 7601 6100 Tim Feather Matthew Johnson About SRT: Software Radio Technology plc, develops advanced radio communications technologies which are used to create enabling modules and OEM products. SRT Marine Technology Limited focuses on VHF and AIS technologies for use in navigation and homeland security identification and tracking applications. SRT Marine Technology provides its solutions in a variety of module and OEM product formats.