Marine Division Update

SOFTWARE RADIO TECHNOLOGY PLC                         

                            MARINE DIVISION UPDATE                             

The Directors of Software Radio Technology plc ("SRT" or the "Company") are
pleased to announce that the Company's subsidiary, Software Radio Technology
(Marine Technology) Limited, has entered into an agreement with Saab
Transponder Tech AB of Sweden for the supply of its low cost AIS (Automatic
Identification System) Class B technology solution. In addition, one of SRT's
existing marine customers, Comar Systems Limited, has been awarded US Coast
Guard approval for its AIS Class B product.

Saab is the world's leading provider of AIS network solutions and other marine
electronics with an established network of distributors worldwide. The
agreement with Saab will involve SRT providing its AIS technology for Saab to
integrate into a range of products which will be sold through its distribution
channels. In addition to this agreement, SRT and Saab have entered a memorandum
of understanding which lays the foundation for closer co-operation to tackle
particular national markets where a system approach is required.

Neil Peniket, SRT's Operations Director said: "Saab has been a leader in AIS
systems for many years and therefore our companies are natural partners in AIS
as the market grows. Our low cost technology solutions will enable Saab to
capitalise on its brand and the networks installed and to be installed around
the world."

Comar has been successfully shipping its AIS Class B product containing SRT's
core AIS solution since late 2006. With over 10 million vessels, the US market
offers significant potential for all manufacturers of AIS products and
therefore USCG and Federal Communications Commission approvals are a necessary
step. SRT's AIS platform became the first and only AIS Class B platform to be
approved by the USCG in February this year. This approval should enable all SRT
AIS customers to obtain this approval quickly for their products.

Simon Tucker, SRT's Managing Director said, "Our marine business continues to
make significant progress. Our strategy of building a global network of
partners, each with their own multiple sales channels and brand proposition and
all using our core technology, is starting to yield meaningful results."

Enquiries:                                                                     
                                                                               
Software Radio Technology plc                                      01761 409500
                                                                               
Simon Tucker                                       [e-mail]
                                                                               
Managing Director                                                              
                                                                               
CityRoad Communications                                           020 7248 8010
                                                                               
Paul Quade                                                         07947 186694
                                                                               
Hanson Westhouse Limited                                          0113 246 2610
                                                                               
Tim Feather                                                                    

About SRT:

Founded in 1987 and quoted on AIM in 2005, SRT focuses on the development of
turnkey technology product solutions for homeland security applications. SRT's
technologies are used by manufacturers to fast track and de-risk the
development of their own products. SRT has focused on the areas of professional
voice and data radio communications such as TETRA and maritime identification
and tracking systems, such as AIS: both of which are global standards. The
company has a worldwide customer base with a business model based on customers
paying royalties on each product manufactured.

About Saab:

Based in Sweden, Saab Transpondertech AB is a wholly owned subsidiary of the
Saab Group. The company manufacturers, supplies and installs complete AIS
system solutions as well as individual transponders through a global network of
agents. http://www.transpondertech.se

About Comar:

Based in the UK, Comar is a privately owned company that specialises in the
provision of AIS products. www.comarsystems.com