SOFTWARE RADIO TECHNOLOGY PLC                         

                          DIRECTOR/PDMR SHAREHOLDING                           

Software Radio Technology plc ("SRT" or the "Company") has been notified that
Simon Rogers, a Non-Executive Director of the Company, acquired 3,500,000
ordinary shares of 0.1p each in SRT at a price of 2 pence per share on 10 July
2009. Following this acquisition, Mr. Rogers is interested in 16,983,900
ordinary shares, representing 17.36 per cent. of the issued share capital.

Enquiries:

Enquiries:                                                                   
                                                                             
Software Radio Technology plc                              +44 (0)1761 409500
                                                                             
Simon Tucker                                     simon.tucker@softwarerad.com
                                                                             
Group Managing Director                                                      
                                                                             
Hanson Westhouse Limited                                 +44 (0) 20 7601 6100
                                                                             
Tim Feather                                                                  
                                                                             
Matthew Johnson