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 25,000 new
ordinary shares of 0.1p each in the Company following the conversion of
employee share options in the Company at 2.5p per share.

Following the issue of the new shares, there are 105,889,107 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 trading on AIM
which is expected to occur on 18 July 2011.

Enquiries:                                                                   
                                                                             
Software Radio Technology plc                                    01761 409500
                                                                             
Simon Tucker / Richard Hurd                                                  
                                                                             


Westhouse Securities Limited                                    020 7601 6100
                                                                             
Tim Feather / Matthew Johnson