Australia - Guinea - New Zealand

September 1967 - The U.S. Naval Communication Station, North West Cape, Western Australia, which became operational on 1 September 1967, was built under the guidance and direction of the Naval Facilities Engineering Command. It is the highest man-made structure in the Southern Hemisphere and is the worlds largest facility devoted to vety low frequency transmissions. (Credit Image: (c) Keystone Pictures USA/ZUMAPRESS.com/Mary Evans)

Restrictions Only for United Kingdom

Devoted Facilities Facility Frequency Guidance Hemisphere Highest Man-made Operational Transmissions

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