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Bawdsey Manor was the nerve centre for new technology that would change the course of the World War II

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Robert Watson-Watt established the world's first operational radar station at Bawdsey Manor

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Four transmitter masts could detect enemy aircraft up to 160 miles away

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Once, a sealed doorway guarded against gas attacks

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Four years ago the last transmitter tower was demolished

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'T' block is all that is left of the Bawdsey radar station