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Radio Survey Approved by

Drumgrange Ltd.,

Drumgrange Ltd is an independent defence contractor specialising in the development, integration and through-life support of military systems with a particular focus in the areas of Underwater Systems, Communications and Information Systems, VLF Communications, Navigation and Precise Timing Systems, Boat Systems Integration, Training and Simulation and Security Systems.


CILAS has developed a recognized expertise in lasers and optronics. It developing cutting-edge technologies and constantly brings innovations to its products and systems.