SRT Marine Systems: Issue of Equity and Directors' Dealings

Software Radio Technology plc ("SRT" or the "Company") Issue of Equity and Directors' Dealings The Directors of SRT announce that on 12 July 2007 the Company received notices of exercise from two directors in relation to options over an aggregate of 1,040,000 ordinary shares at an exercise price of 1p per share. The shares resulting from the exercise of options have today been issued and allotted. The options were exercised by the following directors: Options exercised Percentage of enlarged issued share capital Simon Tucker 940,000 1.06 Matthew Rogers 100,000 0.11 The shares resulting from the exercise of options represent the entire holding of each director in the Company. Following the issue of the new shares, there are 88,850,892 ordinary shares of 0.1p of SRT in issue with each share carrying the right to one vote. There are 11,352,850 warrants to subscribe for ordinary shares in issue. Application will be made for the new shares to be admitted to AIM. It is expected that admission will occur on 18 July 2007. Enquiries: Software Radio Technology plc 01761 409500 Matthew Rogers Hanson Westhouse Limited 0113 246 2610 Tim Feather / Matthew Johnson