Notice of Interim Results

SOFTWARE RADIO TECHNOLOGY PLC                         

                           Notice of Interim Results                           

Software Radio Technology plc will be announcing its interim results for the
six months ended 30 September 2011 on 28 November 2011.

Enquiries                                                                    
                                                                             
Software Radio Technology plc                              [phone]
                                                                             
Richard Hurd                                     [e-mail]
                                                                             
Chief Financial Officer                                                      
                                                                             
Westhouse Securities Limited                              [phone]
                                                                             
Tim Feather                                                                  
                                                                             
Matthew Johnson