Holding(s) in Company

TR-1(i): NOTIFICATION OF MAJOR INTERESTS IN SHARES

1. Identity of the issuer or the underlying issuer of existing shares to which
voting rights are attached (ii):

Software Radio Technology plc

2. Reason for the notification (please state Yes/No): ( )

An acquisition or disposal of voting rights: (NO)

An acquisition or disposal of financial instruments which may result in the
acquisition of shares already issued to which voting rights are attached: (NO)

An event changing the breakdown of voting rights: (NO)

Other (please specify): (YES) Notification for FSA 20 March 2007 deadline

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

Gartmore Investment Limited

4. Full name of shareholder(s) (if different from 3.) (iv):

GARTMORE FUND MANAGERS LTD A/C GARTMORE UK & IRISH SMALLER COMPANIES 5.179%;

THE ALPHA GEN VOLANTIS FUND LIMITED 4.050%;

STRATHCLYDE PENSION FUND 3.059%

5. Date of the transaction (and date on which the threshold is crossed or 
reached if different) (v):

N/A

6. Date on which issuer notified:

19 March 2007

7. Threshold(s) that is/are crossed or reached:

15%

8. Notified details:

A: Voting rights attached to shares

Class/type of shares  Situation of previous to the Triggering transaction (vi) 
if possible using                                                              
ISIN code                   Number of shares         Number of voting Rights   
                                                              (viii)           
                                                                               
GB00B0M8KM36                                                   15%             

Resulting situation after the triggering transaction (vii)

Class/type of         Number of    Number of voting rights  % of voting rights 
shares if possible     shares               (ix)                               
using the ISIN                                                                 
CODE                   Direct       Direct (x)  Indirect     Direct    Indirect
                                                   (xi)                        
                                                                               
GB00B0M8KM36         12,047,604                 12,047,604             15.389% 

B: Financial Instruments

Resulting situation after the triggering transaction (xii)

Type of     Expiration  Exercise/          Number of voting      % of voting   
financial   Date (xiii) Conversion Period/ rights that may be    rights        
instrument              Date (xiv)         acquired if the                     
                                           instrument is                       
                                           exercised/ converted.               
                                                                               
    N/A         N/A            N/A                  N/A               N/A      

Total (A + B)

 Number of Voting Rights       % of voting rights    
                                                     
        12,047,604                  15.389%          

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



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 information:

14. Contact name:

Alison Averono

15. Contact telephone number:

[phone]

Software Radio Technology plc                                     01761 409 500
                                                                               
Matthew Rogers                                                                 

Hanson Westhouse Limited                                          0113 246 2610
                                                                               
Tim Feather / Matthew Johnson