Related Research Articles
Loran-C was a hyperbolic radio navigation system that allowed a receiver to determine its position by listening to low frequency radio signals transmitted by fixed land-based radio beacons. Loran-C combined two different techniques to provide a signal that was both long-range and highly accurate, features that were formerly incompatible. The disadvantage was the expense of the equipment needed to interpret the signals, which meant that Loran-C was used primarily by militaries after it was introduced in 1957.
OMEGA was the first global-range radio navigation system, operated by the United States in cooperation with six partner nations. It was a hyperbolic navigation system, enabling ships and aircraft to determine their position by receiving very low frequency (VLF) radio signals in the range 10 to 14 kHz, transmitted by a global network of eight fixed terrestrial radio beacons, using a navigation receiver unit. It became operational around 1971 and was shut down in 1997 in favour of the Global Positioning System.
Anthorn Radio Station is a naval and government radio transmitting station located near Anthorn, Cumbria, England, overlooking the Solway Firth, and is operated by Babcock International. It has three transmitters: one VLF; one LF; and an eLORAN transmitter.
The LORAN-C transmitter Gillette was a LORAN-C transmission facility near Gillette, Wyoming at 44°00′11″N105°37′24″W. Its aerial, a 700-foot (210 m) guyed radio mast, was the tallest structure in Wyoming at one time.
The Jupiter Inlet Light is located in Jupiter, Florida, on the north side of the Jupiter Inlet. The site for the lighthouse was chosen in 1853. It is located between Cape Canaveral Light and Hillsboro Inlet Light. The lighthouse was designed by then Lieutenant George G. Meade of the Bureau of Topographical Engineers. Meade's design was subsequently modified by Lieutenant William Raynolds. The Jupiter Inlet silted shut in 1854, forcing all building supplies to be shipped in light boats down the Indian River. Work was interrupted from 1856 to 1858 by the Third Seminole War. The lighthouse was completed under the supervision of Captain Edward A. Yorke in 1860 at a cost of more than $60,000.
Iwo Jima LORAN-C transmitter was a LORAN-C transmitter at Iwo Jima, Japan of Grid 9970 at 24°48′8″N141°19′32″E. The Iwo Jima LORAN-C transmitter had a transmission power of 4 megawatts, which is more than the most powerful broadcasting stations. The Iwo Jima LORAN-C transmitter had a 411.5 meter (1350 ft) tall guyed mast, which was built in 1963. A guy wire insulator eyebolt failed sending the insulator crashing into the tower, knocking it out of plumb. It collapsed in 1964 on repair of the structural damage caused by the insulator. The collapsing tower killed four construction contract workers, three on the tower and one on the ground. The collapse also destroyed the transmitter building.
The Cape Race LORAN-C transmitter was a LORAN-C transmitter at Cape Race, Newfoundland and Labrador, on Canada's eastern seaboard.
Angissoq LORAN-C transmitter was a LORAN-C transmitter at Nanortalik-Angissoq, Greenland at GRI 7930, 59°59'18"N, 45°10'24" W. It had a transmission power of 1000 kilowatts. Until July 27, 1964, it used a 1350 ft mast radiator, built in 1963. On July 27, 1964, it collapsed from the fatigue failure of an eyebolt head in a compression cone insulator on a structural guy. It was replaced by a 704 ft mast radiator. On December 31, 1994, the transmitter was shut down and the tower dismantled.
Marcus Island LORAN-C transmitter, or Minami Torishima LORAN-C transmitter, is a former LORAN-C transmitter on Minami-Tori-shima in Ogasawara, Tokyo, Japan at. Until 1993 it was part of Grid 9970 and used a transmission power of 4000 kilowatts, which was more than the most powerful broadcasting stations ever used.
LORAN-C transmitter Ejde was the Master station of the Ejde LORAN-C Chain. It used a transmission power of 400 kW. Ejde LORAN-C transmitter, situated near Eiði at. Ejde LORAN-C transmitter used as antenna a 190.5 metre tall mast radiator. In 1962 the mast of LORAN-C transmitter Ejde collapsed as a result of a slipping guy rope. The mast has been demolished.
LORAN-C transmitter Malone was the master station of the Southeast U.S. LORAN-C Chain and the Whiskey Secondary of the Great Lakes chain. It used a transmission power of 800 kW for both chains.
LORAN-C transmitter Fallon was the Master station of the U.S. West Coast LORAN-C Chain. It used a transmission power of 400 kW.
LORAN-C transmitter Lampedusa was the X-Ray secondary station of the Mediterranean Sea LORAN-C Chain. It used a transmission power of 325 kW. The Lampedusa LORAN-C transmitter was situated on the island of Lampedusa at 35°31′21″N12°31′31″E. The Lampedusa LORAN-C transmitter uses as an antenna a 190.5 metre (625 ft) tall mast radiator, which was commissioned in 1972. An Omega monitoring station was also constructed on the base. The LORAN Station ceased transmission on 312400Z DEC 94 and was decommissioned in January 1995.
Coast Guard LORAN-C Station Estartit was the Zulu secondary station of the Mediterrean Sea LORAN-C Chain. It used a transmission power of 165 kW. Estartit LORAN-C transmitter, was situated near Estartit at. Estartit LORAN-C transmitter used as antenna a 190.5 metre tall mast radiator.
LORAN-C transmitter Grangeville was the Whiskey secondary station of the Southeast U.S. LORAN-C Chain. It used a transmission power of 800 kW.
The LORAN-C transmitter Seneca was the master station of the Northeastern United States LORAN-C Chain and the X-Ray secondary station of the Great Lakes Chain. It was located within the Seneca Army Depot in Romulus, New York, south of Geneva. It used a 1000-kilowatt, 742-foot guyed mast that was constructed in 1977 and dedicated on August 2, 1978. The station was operated by United States Coast Guard and was located on a 250-acre (1.0 km2) piece of land within the 10,587-acre (42.84 km2) facility. The transmitter was used to guide ships and aircraft up to 1,000 miles (1,600 km) away. It was the first LORAN station to use solid-state electronics versus vacuum tube components.
LORAN-C transmitter Searchlight was the Yankee secondary of the U.S. West Coast LORAN-C Chain and the Whiskey secondary of the South Central U.S. Chain. The station, established in 1976, consisted of four 700-foot (210 m) transmission towers. It transmitted 540 kW from 13.5 miles (21.7 km) south of Searchlight, Nevada. There were five active duty and 2 reserve duty Coast Guard personnel stationed at LORSTA Searchlight. The station's Officer in Charge was a Chief Electronics Technician.
The Emley Moor transmitting station is a telecommunications and broadcasting facility on Emley Moor, 1 mile (1.6 km) west of the village centre of Emley, between Huddersfield and Wakefield, West Yorkshire, England.
LORAN-C transmitter Kargaburun is the Yankee secondary station of the Mediterranean Sea LORAN-C Chain . It uses a transmission power of 165 kW. Kargaburun LORAN-C transmitter is situated at Kargaburun in Marmara Ereğlisi district of Tekirdağ Province, Turkey at 40°58'21" N, 27°52'2" E,.
References
- ↑ "U.S. Coast Guard dismantles Loran Tower in state park". TCPalm. Retrieved October 9, 2021.