Radio quiet zone, that is. The Quiet Zone is a 13,000 square mile area in the mountains straddling the states of VA and WV. The reason it was declared a quiet zone is to allow radio astronomers at the National Radio Astronomy Observatory to do their research and an NSA group to perform surveillance.
The Quiet Zone even has its own full-time interference monitor. His job is to track down any source of RFI, including power line interference and wireless speakers.
PBS’ Wired Science program recently aired a feature on this zone. It’s very interesting.
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