RAF Stenigot was a Second World War radar station situated at Stenigot, near Donington on Bain, Lincolnshire. It was part of the Chain Home radar network, intended to provide long range early warning for raids from Luftflotte V and the northern elements of Luftflotte II along the approaches to Sheffield and Nottingham and the central midlands. After the Second World War, the site was retained as part of the Chain Home network. In 1959 it was upgraded to a communications relay site as part of the ACE High program, which involved adding four tropospheric scatter dishes.