Radio quiet zone

A radio quiet zone is an area where radio transmissions are restricted in order to protect a radio telescope or a communications station from radio frequency interference. Equipment that can cause interference includes mobile phones, television transmitters, and CB radios, as well as other electrical equipment.

Quiet zones are located in areas that are sparsely populated. They may be divided into zones with different levels of protection. They may be enforced by government legislation.

Formal radio quiet zones exist around many observatories, including the Murchison Radio-astronomy Observatory in Australia, the National Radio Astronomy Observatory and the Sugar Grove Station in West Virginia, United States (the United States National Radio Quiet Zone).

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