Chinese Air Force

SOFTWARE RADIO TECHNOLOGY PLC                         

           Chinese Air Force takes first delivery of TETRA handsets            

The Directors of Software Radio Technology plc ("SRT" or the "Company") are
pleased to announce that the Chinese Air Force has taken delivery of its first
trial TETRA handsets in the first step of its rollout of TETRA.

The handset has been designed and manufactured by a Chinese government-owned
company for supply to the Chinese military. The handset is based on SRT's core
TETRA handset technology reference design.

The technology licence agreement between SRT and the local manufacturer
provides the manufacturer with the core technology, development and production
tools and training to develop its own unique handset. The manufacturer is
therefore able to create its own range of handsets which are tailored to the
form and function required by local customers. SRT receives licence and product
development fees during the development of the customer's handset and a royalty
on every handset manufactured.

Simon Tucker, SRT's Commercial Director said "This is an important milestone
for both SRT and our customer and we are extremely proud. We expect this
delivery to mark the start of a gradual delivery programme across this target
market. Our agreement is a long term partnership and we will continue to work
with this customer to improve and expand its TETRA product range."

Software Radio Technology plc                                      01761 409500
                                                                               
Simon Tucker                                       [e-mail]
                                                                               
Shamus Kelly                                       [e-mail]
                                                                               
Hanson Westhouse LLP                                              0113 246 2611
                                                                               
Tim Feather                                     [e-mail]

About SRT

Founded in 1987, SRT is a UK based company that develops complete, ready to
manufacture wireless technology solutions for applications within homeland
security tracking and digital communications applications. SRT's solutions
enable manufacturers to localise, significantly fast track, de-risk and cost
reduce the development and manufacture of complex wireless technology products.
The Company has a worldwide customer base for its Marine-AIS and TETRA
technology solutions. SRT earns a per unit royalty on every product
manufactured based on its technology.

SRT was one of the first companies to recognise the demand in Asia and other
non-EU countries for TETRA and has built multiple relationships with
strategically located customers to facilitate the local manufacture of TETRA
equipment and access to these large markets. Today all non-EU manufacturers of
TETRA equipment use SRT technology.