Lualualei VLF transmitter
Encyclopedia
VLF transmitter Lualualei is a facility of the United States Navy
near Lualualei, Hawaii
transmitting orders to submerged submarines in the very low frequency
(VLF) range. VLF transmitter Lualualei, which operates under the callsign NPM on 21.4 kHz and 23.4 kHz, uses as antenna two guyed masts, each 458.11 metres (1503 feet) tall. Both masts, which were built in 1972, were not only the tallest towers in the Western hemisphere at the time, used for military purposes, they are also the tallest towers used for long wave transmissions in the Western hemisphere and since the collapse of Warsaw Radio Mast
perhaps the tallest structures electrically insulated against ground.
An image can be found at this link
United States Navy
The United States Navy is the naval warfare service branch of the United States Armed Forces and one of the seven uniformed services of the United States. The U.S. Navy is the largest in the world; its battle fleet tonnage is greater than that of the next 13 largest navies combined. The U.S...
near Lualualei, Hawaii
Lualualei, Hawaii
Lualualei, Hawaii is the largest coastal valley on the leeward side of Oahu in Hawaii. Inside the valley are several government communication stations including USN VLF Lualualei and the USCG Communication Station Honolulu. The closest town is Māili....
transmitting orders to submerged submarines in the very low frequency
Very low frequency
225px|thumb|right|A VLF receiving antenna at [[Palmer Station]], Antarctica, operated by Stanford UniversityVery low frequency or VLF refers to radio frequencies in the range of 3 kHz to 30 kHz. Since there is not much bandwidth in this band of the radio spectrum, only the very simplest signals...
(VLF) range. VLF transmitter Lualualei, which operates under the callsign NPM on 21.4 kHz and 23.4 kHz, uses as antenna two guyed masts, each 458.11 metres (1503 feet) tall. Both masts, which were built in 1972, were not only the tallest towers in the Western hemisphere at the time, used for military purposes, they are also the tallest towers used for long wave transmissions in the Western hemisphere and since the collapse of Warsaw Radio Mast
Warsaw radio mast
The Warsaw radio mast was the world's tallest structure until its collapse on 8 August 1991. It is the second tallest land-based structure ever built, being surpassed as tallest by the Burj Khalifa, completed in 2010....
perhaps the tallest structures electrically insulated against ground.
An image can be found at this link
External links
- Entry at Wikimapia
- http://skyscraperpage.com/cities/?buildingID=57182, http://skyscraperpage.com/cities/?buildingID=57183 Entries at Skyscraperpage
- Frequency list ( search there for Lualualei )
See also
- VLF Transmitter CutlerVLF Transmitter CutlerThe VLF Transmitter Cutler is the United States Navy's very low frequency station at Cutler, Maine. The station provides one-way communication to the United States strategic submarine forces.- History :...
- Jim Creek Naval Radio StationJim Creek Naval Radio StationJim Creek Naval Radio Station is a United States Navy facility at Jim Creek near Oso, Washington.-VLF radio facility:The primary mission of this radio site is to provide VLF radio transmitting capabilities for the Pacific submarine fleet...
- Naval Communication Station Harold E. HoltNaval Communication Station Harold E. HoltNaval Communication Station Harold E. Holt is located on the northwest coast of Australia, north of the town of Exmouth, Western Australia. The town of Exmouth was built at the same time as the communications station to provide support to the base and to house dependent families of U.S...
- List of masts