US$18m AIS Order

SOFTWARE RADIO TECHNOLOGY PLC                         

                            US$18 MILLION AIS ORDER                            

Software Radio Technology plc ("SRT") is pleased to announce that it has
received an order worth US$18 million for its AIS (Automatic Identification
System) Class B product.

The Class B units are to be delivered in variable quarterly quantities over a
period of three years. The first quarterly delivery has been made and payment
received.

The agreement is with an Asia-based customer and the units will be used to meet
local demand in a single country arising from a national mandate which will
ultimately require up to an estimated 220,000 vessels to be fitted with an AIS
device. The current agreement represents only a proportion of this potential
market.

Following the mandate of AIS by the International Maritime Organisation on most
vessels over 300GT in 2002, AIS became a global technology standard and is now
used on a daily basis by many authorities and port operators. Since that time,
its ability to identify and track vessels of all sizes precisely irrespective
of the weather or topography has driven many countries to place it at the core
of their coastal and inland waterway safety and security plans. A number of
regions such as India, the EU, Turkey and the USA have announced plans to
introduce mandates. This has created a growing global market for AIS devices
which SRT's module and product solutions are well positioned to address with a
range of high performance, low cost products.

SRT Managing Director, Simon Tucker, said: "Our technology provides the high
performance, low cost solution required for this market. We have worked with
this partner for several years and are delighted to have concluded this
agreement.

"We foresaw the opportunity provided by the global AIS market in 2005 and
invested heavily in the development of our AIS technologies and supporting
customers to make use of our solutions. This investment has put us in a strong
position, both technically and commercially, to benefit from the growth in
demand for AIS products in the years to come. Clearly, as this is a relatively
new market we can expect periodic delays, however there is no doubt that the
market is now moving forward positively. Today's announcement is real evidence
of the opportunity that exists."

Enquiries:

Enquiries:                                                                   
                                                                             
Software Radio Technology plc                              [phone]
                                                                             
Simon Tucker                                     [e-mail]
                                                                             
Group Managing Director                                                      
                                                                             
Hanson Westhouse Limited                                 [phone]
                                                                             
Tim Feather                                                                  
                                                                             
Matthew Johnson                                                              


                                                                                                                                                             
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