RNLI Supply Agreement

SOFTWARE RADIO TECHNOLOGY PLC                         

                Agreement to Supply AIS Technology to the RNLI                 

The Directors of Software Radio Technology plc ("SRT") are pleased to announce
that SRT Marine Technology Limited has signed an agreement with Raycomm
Electronics Limited to supply SRT's AIS Class B transceivers for use in a
system being developed by Raycomm for the RNLI to assist in tracking and
management of its fleet of lifeboats.

Adopting new technology which enhances search and rescue capability is a high
on the agenda for the RNLI. Extensive trials of SRT Marine Technology's AIS
Class B transceivers carried out in the Solent on a number of RNLI All-Weather
Lifeboats demonstrated the significant benefits for the RNLI.

Neil Peniket, SRT Marine Technology's Managing Director said: "We have invested
significantly in sea trials of our Class B products here in the UK and
throughout the world. The reliability and functionality of our solution is
crucial for the RNLI."

Mark Morgan, Radiocommunications Project Officer with the RNLI said: "The RNLI
considers AIS Class B to be an important technology in augmenting existing
search and rescue systems."

Richard Thatcher, Raycomm's Managing Director said: "Our expertise in
integrating leading edge technologies to provide complete product solutions is
enabling the RNLI to achieve an ever more rapid and successful response in a
search and rescue situation."

About SRT Marine Technology

SRT Marine Technology Limited is a wholly owned subsidiary of Software Radio
Technology plc and is a leading supplier of AIS technology and solutions.

Software Radio Technology plc is a developer and licensor of digital wireless
technology reference designs that facilitate and fast-track the manufacture of
sophisticated digital communications and tracking/surveillance products for use
within the professional homeland security market. Currently SRT develops and
supplies technology solutions for Marine AIS and PMR-TETRA.

About RNLI

The RNLI is a registered charity and is reliant upon donations and volunteers
to save lives at sea. It provides, on call, the 24-hour service necessary to
cover search and rescue requirements to 100 miles out from the coasts of the
United Kingdom and the Republic of Ireland.

About Raycomm Electronics

Raycomm Electronics Limited is a leading UK based technical consultancy and
developer of innovative custom software and electronic solutions for product
manufacturers and service providers in diverse applications.

Our expertise embraces bespoke development of advanced web and server software;
digital communication systems and protocols; PC and smart handheld device
software; microprocessor based electronics and firmware. Current clients
include RNLI, Hewlett-Packard, Arqiva, Stanley and others in markets such as
marine safety and location, vehicle and asset tracking, remote key management
data collection, messaging systems and security.