Filter Room
http://dbpedia.org/resource/Filter_Room
A Filter Room was part of RAF Fighter Command's radar defence system in Britain during the Second World War. The filter room at Fighter Command Headquarters lay at the top of the Dowding system - the integrated ground-controlled interception network that covered the United Kingdom. The operations were considered secret and, as such, were covered by the Official Secrets Act.
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Filter Room
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31274287
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A Filter Room was part of RAF Fighter Command's radar defence system in Britain during the Second World War. The filter room at Fighter Command Headquarters lay at the top of the Dowding system - the integrated ground-controlled interception network that covered the United Kingdom. The operations were considered secret and, as such, were covered by the Official Secrets Act.
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5708