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Naval Radio Transmitter Facility LaMoure
Naval Radio Transmitter Facility LaMoure (NRTF LaMoure) is a United States Navy installation located about 3 km west of LaMoure, North Dakota. The site uses a former OMEGA Navigation System station as a VLF transmitter for communications with the US submarine fleet. Commander Blake Wayne Van Leer lead the construction and opening of the site. The unit operating the facility is the Naval Computer and Telecommunications Area Master Station Atlantic Detachment (NCTAMS LANT Det) LaMoure, part of Naval Network Warfare Command Naval Network Warfare Command (NETWARCOM) is the United States Navy's information operations, intelligence, networks, and space unit. Naval Network Warfare Command's mission is to execute, under Commander TENTH Fleet Operational Control, tactica .... References External linksOfficial website [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
United States Navy
The United States Navy (USN) is the maritime service branch of the United States Armed Forces and one of the eight uniformed services of the United States. It is the largest and most powerful navy in the world, with the estimated tonnage of its active battle fleet alone exceeding the next 13 navies combined, including 11 allies or partner nations of the United States as of 2015. It has the highest combined battle fleet tonnage (4,635,628 tonnes as of 2019) and the world's largest aircraft carrier fleet, with eleven in service, two new carriers under construction, and five other carriers planned. With 336,978 personnel on active duty and 101,583 in the Ready Reserve, the United States Navy is the third largest of the United States military service branches in terms of personnel. It has 290 deployable combat vessels and more than 2,623 operational aircraft . The United States Navy traces its origins to the Continental Navy, which was established during the American Revo ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
LaMoure, North Dakota
LaMoure is a city in LaMoure County, North Dakota, United States. The population was 764 at the 2020 census. It is the county seat of LaMoure County. LaMoure was founded in 1882 and was named after Judson LaMoure, a territorial legislator (LaMoure County and the cities of Jud and Judson are also named after him). LaMoure was one of eight global transmission sites of the Omega Navigation System until its closure on September 30, 1997. The station is now used for VLF communication purposes by the U.S. Navy. Geography LaMoure is located at (46.358569, -98.293697) on the James River. According to the United States Census Bureau, the city has a total area of , all land. Demographics 2010 census As of the census of 2010, there were 889 people, 394 households, and 236 families residing in the city. The population density was . There were 436 housing units at an average density of . The racial makeup of the city was 98.2% White, 1.2% Native American, and 0.6% from two or more ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
OMEGA Navigation System
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. History Previous systems Taking a " fix" in any navigation system requires the determination of two measurements. Typically these are taken in relation to fixed objects like prominent landmarks or the known location of radio transmission towers. By measuring the angle to two such locations, the position of the navigator can be determined. Alternately, one can measure the angle and distance to a single object, or the distance to two objects. The introduction of radio s ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Very Low Frequency
Very low frequency or VLF is the ITU designation for radio frequencies (RF) in the range of 3–30 kHz, corresponding to wavelengths from 100 to 10 km, respectively. The band is also known as the myriameter band or myriameter wave as the wavelengths range from one to ten myriameters (an obsolete metric unit equal to 10 kilometers). Due to its limited bandwidth, audio (voice) transmission is highly impractical in this band, and therefore only low data rate coded signals are used. The VLF band is used for a few radio navigation services, government time radio stations (broadcasting time signals to set radio clocks) and for secure military communication. Since VLF waves can penetrate at least 40 meters (131 ft) into saltwater, they are used for military communication with submarines. Propagation characteristics Because of their long wavelengths, VLF radio waves can diffract around large obstacles and so are not blocked by mountain ranges, and can ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Communication With Submarines
Communication with submarines is a field within military communications that presents technical challenges and requires specialized technology. Because radio waves do not travel well through good electrical conductors like salt water, submerged submarines are cut off from radio communication with their command authorities at ordinary radio frequencies. Submarines can surface and raise an antenna above the sea level, or float a tethered buoy carrying an antenna, then use ordinary radio transmissions, however this makes them vulnerable to detection by anti-submarine warfare forces. Early submarines during World War II mostly traveled on the surface because of their limited underwater speed and endurance, and dove mainly to evade immediate threats or for stealthy approach to their targets. During the Cold War, however, nuclear-powered submarines were developed that could stay submerged for months. In the event of a nuclear war, submerged ballistic missile submarines have to be order ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Blake Wayne Van Leer
Blake Wayne Van Leer (January 13, 1926 – October 3, 1997) was a United States Navy officer who commanded the naval construction Battalion Seabees during World War II and the Vietnam War. He led the expansion of submarine-launched ballistic missile programs and the Omega (navigation system), OMEGA Navigation System used for communication to the U.S. submarine fleet. He received the Legion of Merit award and the Moreel Medal for outstanding contributions to military engineering. He was the son of Georgia Institute of Technology president Blake R. Van Leer and women's rights activist Ella Lillian Wall Van Leer. Early life and education Van Leer was born in Berkeley, California on January 13, 1926 to Blake R. Van Leer, a colonel and university president, and Ella Lillian Wall Van Leer, a technologist and principal draftswoman in the Quartermaster general's research department. He was a member of the influential Van Leer Family, Van Leer family. Van Leer attended Needham B. Broug ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Naval Network Warfare Command
Naval Network Warfare Command (NETWARCOM) is the United States Navy's information operations, intelligence, networks, and space unit. Naval Network Warfare Command's mission is to execute, under Commander TENTH Fleet Operational Control, tactical-level command and control of Navy Networks and to leverage Joint Space Capabilities for Navy and Joint Operations. History In 2002, some 23 organizations from several commands, including the former Naval Space Command, Naval Computer and Telecommunications Command, Fleet Information Warfare Center, and Navy Component Task Force - Computer Network Defense were brought together to form Naval Network Warfare Command, emphasizing the organization's focus on the operation and defense of the Navy's networks. In 2005, with the disestablishment of Naval Security Group (NAVSECGRU), NETWARCOM brought the former Naval Security Group Activities (NSGAs) under its umbrella, designating them Naval Information Operation Center(s) (NIOC) and Naval Info ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Military Installations In North Dakota
A military, also known collectively as armed forces, is a heavily armed, highly organized force primarily intended for warfare. It is typically authorized and maintained by a sovereign state, with its members identifiable by their distinct military uniform. It may consist of one or more military branches such as an army, navy, air force, space force, marines, or coast guard. The main task of the military is usually defined as defence of the state and its interests against external armed threats. In broad usage, the terms ''armed forces'' and ''military'' are often treated as synonymous, although in technical usage a distinction is sometimes made in which a country's armed forces may include both its military and other paramilitary forces. There are various forms of irregular military forces, not belonging to a recognized state; though they share many attributes with regular military forces, they are less often referred to as simply ''military''. A nation's military may ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Transmitter Sites In The United States
In electronics and telecommunications, a radio transmitter or just transmitter is an electronic device which produces radio waves with an antenna. The transmitter itself generates a radio frequency alternating current, which is applied to the antenna. When excited by this alternating current, the antenna radiates radio waves. Transmitters are necessary component parts of all electronic devices that communicate by radio, such as radio and television broadcasting stations, cell phones, walkie-talkies, wireless computer networks, Bluetooth enabled devices, garage door openers, two-way radios in aircraft, ships, spacecraft, radar sets and navigational beacons. The term ''transmitter'' is usually limited to equipment that generates radio waves for communication purposes; or radiolocation, such as radar and navigational transmitters. Generators of radio waves for heating or industrial purposes, such as microwave ovens or diathermy equipment, are not usually called transmitters, even ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
