NLB monitors all its active land and sea-based Aids to Navigation (AtoN) from Monitor Centres in Edinburgh and Harwich.
The NLB estate has over 300 active Aids to Navigation. The correct functioning of all active Aids to Navigation – all those that transmit as part of their function – whether be it light, sound or radio signal, are monitored using a state of art monitoring system. All our lighthouses are fitted with modern and secure Remote Terminal Units (RTU) which communicate using faster 4G communication. This helps us to monitor data from AtoNs in real-time. Web-based monitoring system is regularly used by our monitoring officers, engineers, and technicians and this helps in the operation and maintenance of AtoNs.