Holding(s) in Company

26 Mar 2010 16:26

TR-1: NOTIFICATION OF MAJOR INTEREST IN SHARES

1. Identity of the issuer or the underlying issuer of Software Radio existing shares to which voting rights are attached: Technology plc

2 Reason for the notification (please tick the appropriate box or boxes):

An acquisition or disposal of voting rights Yes

An acquisition or disposal of qualifying financial instruments which may result in the acquisition of shares already issued to which voting rights are attached

No

An acquisition or disposal of instruments with similar economic effect to qualifying financial instruments

No An event changing the breakdown of voting rights No No Other (please specify):

3. Full name of person(s) subject to the notification Gartmore Investment obligation:

Limited 4. Full name of shareholder(s): See attached schedule

5. Date of the transaction and date on which the threshold 23 March 2010 is crossed or reached:

6. Date on which issuer notified: 25 March 2010 7. Threshold(s) that is/are crossed or reached: 5% 8. Notified details: A: Voting rights attached to shares Class/type of Situation previous Resulting situation after the triggering shares to the triggering transaction transaction if possible Number Number Number Number of voting % of voting using of of of shares rights rights the ISIN CODE Shares Voting Rights Direct Direct Indirect Direct Indirect GB00B0M8KM36

9,648,315 9,648,315 4,700,000 4,700,000 4.805% B: Qualifying Financial Instruments Resulting situation after the triggering transaction Type of financial Expiration Exercise/ Number of voting % of voting instrument date Conversion rights that may be rights Period acquired if the instrument is exercised/ converted. N/A

C: Financial Instruments with similar economic effect to Qualifying Financial Instruments

Resulting situation after the triggering transaction Type of Exercise Expiration Exercise/ Number of % of voting financial price date Conversion voting rights instrument period rights instrument refers to Nominal Delta Total (A+B+C) Number of voting rights Percentage of voting rights 4,700,000 4.805%

9. Chain of controlled undertakings through which the voting rights and/or the financial instruments are effectively held, if applicable:

N/A Proxy Voting: 10. Name of the proxy holder: N/A 11. Number of voting rights proxy holder will cease to hold: N/A 12. Date on which proxy holder will cease to hold voting rights: N/A 13. Additional All figures are based on the Company's issued share capitalinformation: of 97,817,107 as provided by Exshare Email contact: RDU@Gartmore.com 14. Contact name: RDU 15. Contact 0207 782 2324 telephone number:

Annex Notification of Major Interests in Shares:

Fund No. of Per UK registered managing shares cent. owner Beneficial owner company held HSBC Global Gartmore Fund Managers Ltd A/c GFM 2,169,229 2.218% Custody Nominee UK Gartmore UK & Irish Smaller Ltd Companies GIL 2,169,230 2.218% Nortrust Nominees Strathclyde Pension Fund Ltd GIL 361,541 0.370% Gartmore Growth Gartmore Growth Opportunities plc Opportunities TOTAL 4,700,000 4.805%

"GFM" Gartmore Fund Managers Limited

"GIL" Gartmore Investment Limited

Enquiries: Software Radio Technology plc +44 (0)1761 409500 Simon Tucker simon.tucker@softwarerad.com Group Managing Director

Westhouse Securities Limited +44 (0) 20 7601 6100

Tim Feather

Matthew Johnson