Holding in Company

Spirent PLC
21 September 2000


                  DEALINGS BY SUBSTANTIAL SHAREHOLDERS


1)   NAME OF COMPANY

SPIRENT PLC


2)   NAME OF SHAREHOLDER HAVING A MAJOR INTEREST

SCOTTISH WIDOWS INVESTMENT PARTNERSHIP LIMITED


3)   Please state whether notification indicates that it is in respect of 
     holding of the Shareholder named in 2 above or in respect of a 
     non-beneficial interest or in the case of an individual holder if it is a
     holding of that person's spouse or children under the age of 18

SHAREHOLDER IN 2 ABOVE


4)   Name of the registered holder(s) and, if more than one holder, the 
     number of shares held by each of them.

NOT KNOWN


5)   Number of shares/amount of stock acquired.

NOT KNOWN


6)   ( NOT KNOWN %) of issued Class


7)   Number of shares/amount of stock disposed

NOT KNOWN


8)   ( NOT KNOWN %) of issued Class


9)   Class of security

ORDINARY SHARES OF 3 1/3p EACH


10)  Date of transaction

NOT KNOWN


11)  Date company informed

21 SEPTEMBER 2000 


12)  Total holding following this notification

NOT KNOWN
               
              
13)  Total percentage holding of issued class following this notification

NOT KNOWN


14)  Any additional information

NOTIFICATION UNDER S198 COMPANIES ACT 1985 THAT NOTIFIABLE HOLDING NO LONGER
EXISTS PURSUANT TO S199(2)(b)


15)  Name of contact and telephone number for queries

JAMES WALL - 01293 767676

16)  Name and signature of authorised company official responsible for 
     making this notification

     Date of Notification ... 21 SEPTEMBER 2000 ......................