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Radio Direction Finding

Radio Direction Finding was used in the Second World War to find the direction, or bearing, of a radio source. It was used as radio navigation for boats and planes.

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RDF measures an incoming signal from two locations. Data from these measurements are then cross-analyzed to determine the location of the transmitter. This information could be used to locate an enemy transmitter or to guide planes and boats. The Chain Home systems used separate omnidirectional broadcasters and large RDF receivers to determine the location of targets.

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© 2016 The Secrets of Radar Museum

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Disclaimer: The audio files available on this virtual exhibit are the result of a long term oral history interview project conducted by the Secrets of Radar Museum. Sections of these interviews have been compiled here to make them accessible to the general public. Interviews were conducted by different museum staff at different times using different recording devices. As a result, some of the audio clips have background noise or other imperfections. The Secrets of Radar Museum has worked to ensure that the recordings shared here have been refined to increase sound quality and reduce these imperfections, but some recordings will still have flaws due to the limitations of the original audio file. The Secrets of Radar Museum appreciates your understanding in this matter. Please contact us for more information.

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