Holding(s) in Company

SOFTWARE RADIO TECHNOLOGY PLC ("SRT" or the "Company")             

                              HOLDING IN COMPANY                               

On 15 February 2007, SRT was notified by HSBC Security Services (UK) Limited
that Polar Capital Partners is the beneficial owner of 4,633,895 shares in the
Company representing 5.921 per cent. of the issued share capital.

The shares are registered as follows:


Registered holder                            No. of shares            Account
                                                                             
Chase Nominees Limited                           2,460,638         POLTEC01IT
                                                                             
Goldman Sachs Intl Nominees                      1,473,257         POLTEC04OS
                                                                             
Nortrust Nominees Limited                          700,000         POLTEC05OS



Enquiries:


Software Radio Technology plc                                      01761 409500
                                                                               
Matthew Rogers                                  

                                                                               
Hanson Westhouse Limited                                          0113 246 2610
                                                                               
Tim Feather/Matthew Johnson