The Commissioners of Irish Lights advise mariners that due to maintenance work on the main aerial, the transmission of differential GPS signals will be switched to the standby aerial. Users may notice a slight reduction in the range of signals due to this change.

Work will commence on the 18th August 2003 and will continue until approximately the 8th September 2003.

Radio Navigation Warnings will be issued prior to, during, and on completion of this maintenance work.