After WWII, GCHQ set up an "experimental radio station", a top secret research facility, on the site of the RAF's wartime airfield at Blakehill Farm. It consisted of huge communications masts arranged in mysterious strategic patterns in the middle of the old airfield. The site was still active in some capacity until the mid 1990s and traces of the former antenna bases can still be seen on satellite photographs. 
Jefford, Wing Commander C.G., MBE, BA, RAF (Retd) (1988). RAF Squadrons, a Comprehensive Record of the Movement and Equipment of all RAF Squadrons and their Antecedents since 1912. Shrewsbury, Shropshire, UK: Airlife Publishing. ISBN1-84037-141-2.
Sturtivant, Ray, ISO and John Hamlin (2007). RAF Flying Training And Support Units since 1912. Tonbridge, Kent, UK: Air-Britain (Historians) Ltd. ISBN0-85130-365-X.