Issue of Equity

SOFTWARE RADIO TECHNOLOGY PLC                         

                           ("SRT" or the "Company")                            

                                Issue of Equity                                

The Directors of SRT announce that they have issued and allotted 102,000 new
ordinary shares of 0.1p each in the Company as a result of the receipt of
notices of conversion of employee options in the Company at 2.5p per share.

Following the issue of the new shares, there are 98,108,107 ordinary shares of
0.1p of SRT in issue with each share carrying the right to one vote.

Application will be made for the new shares to be admitted to AIM which is
expected to occur on 17 June 2010.

Enquiries:                                                                   
                                                                             
Software Radio Technology plc                                    01761 409500
                                                                             
Simon Tucker / Richard Hurd                                                  
                                                                             
Westhouse Securities Limited                                    0113 246 2610
                                                                             
Tim Feather                                                                  
                                                                             
Matthew Johnson