Notice of Full Year Results and AGM

SOFTWARE RADIO TECHNOLOGY PLC                         

                           ("SRT" or the "Company")                            

                  Posting of Annual Report and Notice of AGM                   

                           Live Shareholder Webcast                            

The Company announces that it intends to release its results for the year ended
31 March 2012 on 11 June 2012 and will post its Annual Report and Accounts for
that year, together with a Notice of the Annual General Meeting, to
shareholders on 12 June 2012.

Following the release of its results, SRT will host a live shareholder webcast
at 9:00 a.m. (BST) on Monday 11 June 2012 open to existing and prospective
private and institutional investors. Simon Tucker, SRT's CEO, will provide
responses to questions through a live video webcast which can be accessed by an
interested party worldwide by visiting the website listed below.

The format of the live webcast will be as follows:

  * Investors are invited to email questions prior to the event to 
    [e-mail]. These questions will help form the presentation
    given by Simon Tucker on the webcast. Questions must be submitted before
    8.45am on Monday 11 June 2012.
   
  * Investors will need to go to www.softwarerad.com/investorwebcast, click the
    button then login using a nickname and their email address. Please note
    that investor names and identities will not be broadcast and will be kept
    strictly confidential.
   
  * During the webcast, investors will be able to send instant messages from
    the viewing website to Simon for him to answer and react to live.
   
                                    -ends-                                     

Enquiries:                                                                   
                                                                             
Software Radio Technology plc                              [phone]
                                                                             
Simon Tucker                                     [e-mail]
Chief Executive Officer                          [e-mail]
                                                                             
Richard Hurd                                                                 
Chief Financial Officer                                                      
                                                                             
Westhouse Securities Limited                              [phone]
Richard Baty/ Petre Norton