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Radio Essex - Fort and Location

Knock John Fort

Built: 1942

Formerly a British Navy Fort (U4) constructed to protect coastal sea lanes during World War 2

Other offshore radio use:

Also housed BBMS (Britain’s Better Music Station)

Knock John Fort is located in the Thames Estuary, 8.5 nautical miles off Foulness, Essex and 12 nautical miles off Herne Bay, Kent

51.33.72 North 1.09.83 East

Ships and Sea Structures

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Key Dates

Fort and Location




Key Dates Technical Staff Programmes History

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