Director/PDMR Shareholding

SOFTWARE RADIO TECHNOLOGY PLC                         

                           ("SRT" or the "Company")                            

                         Director / PDMR Shareholding                          

SRT announces that it has received notification that Simon Rogers, Chairman of
the Company, has today sold 600,000 ordinary shares of 0.1p each at a price of
39.5p per share. Following the sale Mr. Rogers holds 14,183,900 ordinary shares
representing 13.4 per cent. of the issued share capital of the Company.

Enquiries:                                                                   
                                                                             
Software Radio Technology plc                                    01761 409500
                                                                             
Simon Tucker / Richard Hurd                                                  
                                                                             
Westhouse Securities Limited                                    0113 246 2610
                                                                             
Tim Feather / Matthew Johnson                                                
                                                                             
Leander PR                                                       07795 168157
                                                                             
Christian Taylor-Wilkinson