Director Declaration

Spirent PLC
17 December 2004



Regulatory News Service


17 December 2004

Dear Sirs

SPIRENT PLC - APPOINTMENT OF DIRECTOR


Following the appointment of Mr Kurt Hellstrom as a non-executive director of
Spirent plc with effect from 9 December 2004, the following information is
disclosed pursuant to Chapter 16.4 of the Listing Rules:


Directorships held of public quoted companies in the previous five years:


Atlas Copco AB                                 1999 to present
Bharti Televentures Limited                    2004 to present
Gemplus International SA                       2004 to present
Telefonaktiebolaget LM Ericsson                Until 2003



There are no other such details that need to be disclosed pursuant to Chapter
16.4 of the Listing Rules.



Yours faithfully







Luke Thomas
Deputy Company Secretary
Spirent plc
Tel: (44) (0) 1293 767676






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