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MUOS
The Mobile User Objective System (MUOS) is a United States Space Force narrowband military satellite, military communications satellite system that supports a worldwide, multi-service population of users in the ultra high frequency (UHF) band. The system provides increased communications capabilities to newer, smaller terminals while still supporting interoperability with legacy terminals. MUOS is designed to support users who require greater mobility, higher bit rates and improved operational availability. The MUOS was declared fully operational for use in 2019. Overview The Mobile User Objective System (MUOS), through a constellation of five satellites (four operational satellites and one on-orbit spare), provides global narrowband connectivity to terminals, platforms, tactical operators and operations centers. The system replaces the slower and less mobile 1990s-era Ultra High Frequency Follow-On (UFO) satellite communication system. MUOS primarily serves the United Stat ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
MUOS Construction
The Mobile User Objective System (MUOS) is a United States Space Force narrowband military communications satellite system that supports a worldwide, multi-service population of users in the ultra high frequency (UHF) band. The system provides increased communications capabilities to newer, smaller terminals while still supporting interoperability with legacy terminals. MUOS is designed to support users who require greater mobility, higher bit rates and improved operational availability. The MUOS was declared fully operational for use in 2019. Overview The Mobile User Objective System (MUOS), through a constellation of five satellites (four operational satellites and one on-orbit spare), provides global narrowband connectivity to terminals, platforms, tactical operators and operations centers. The system replaces the slower and less mobile 1990s-era Ultra High Frequency Follow-On (UFO) satellite communication system. MUOS primarily serves the United States Department of De ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Atlas V
Atlas V is an expendable launch system and the fifth major version in the Atlas (rocket family), Atlas launch vehicle family. It was developed by Lockheed Martin and has been operated by United Launch Alliance (ULA) since 2006. Primarily used to launch payloads for the United States Department of Defense, NASA, and commercial customers, Atlas V is the longest-serving active rocket in the United States. Each Atlas V vehicle consists of two main stages. The First stage (rocketry), first stage is powered by a single Russian-made RD-180 engine that burns kerosene and liquid oxygen. The Centaur (rocket stage), Centaur upper stage uses one or two American-made Aerojet Rocketdyne RL10 engines that burn liquid hydrogen and liquid oxygen. Strap-on booster, Strap-on Solid rocket booster, solid rocket boosters (SRBs) are used in several configurations. Originally equipped with AJ-60A SRBs, the vehicle switched to Graphite-Epoxy Motor (GEM 63) boosters beginning in November 2020, except for ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Ultra High Frequency Follow-On
Ultra High Frequency Follow-On (UFO) satellite system is a United States Department of Defense (DoD) program sponsored and operated by the United States Space Force to provide communications for airborne, ship, submarine and ground forces. The UFO constellation replaced the U.S. DoD Fleet Satellite Communications System (FLTSATCOM) constellation and consisted of eleven satellites. The ground terminal segment consists of equipment and resident personnel at existing satellite communication stations. The satellites are controlled by the 10th Space Operations Squadron (Space Delta 8) located at the Naval Base Ventura County, Point Mugu, California. Satellite description The Ultra high frequency (UHF) satellites primarily served tactical users. UFO provided almost twice as many channels as FLTSATCOM and has about 10% more power per channel. THe satellites were built by Boeing Integrated Defense Systems (formerly Hughes Space and Communications Company) and were based on the 601 ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
United States Space Force
The United States Space Force (USSF) is the space force branch of the United States Department of Defense. It is one of the six United States Armed Forces, armed forces of the United States and one of the eight uniformed services of the United States. It is also one of two List of space forces, units, and formations#Independent space forces, independent space forces in the world. The United States Space Force traces its origins to the Air Force, Army, and Navy's military space programs created during the beginning of the Cold War. US military space forces first participated in combat operations during the Vietnam War and have participated in every U.S. military operation since, most notably in the Gulf War, which has been referred to as the "first space war." The Strategic Defense Initiative and creation of Air Force Space Command in the 1980s marked a renaissance for military space operations. Proposals for a U.S. Space Force were first seriously considered during the Reagan ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Lockheed Martin Space
Lockheed Martin Space is one of the four major business divisions of Lockheed Martin. It has its headquarters in Littleton, Colorado, with additional sites in Valley Forge, Pennsylvania; Sunnyvale, California; Santa Cruz, California; Huntsville, Alabama; and elsewhere in the United States and United Kingdom. The division currently employs about 20,000 people, and its most notable products are commercial and military satellites, space probes, missile defense systems, NASA's Orion spacecraft, and the Space Shuttle external tank. History The Lockheed Missile Systems Division was established in Van Nuys, California, in late 1953 to consolidate work on the Lockheed X-17 and X-7. The X-17 was a three-stage solid-fuel research rocket designed to test the effects of high mach atmospheric reentry. The X-17 was also used as the booster for the Operation Argus series of three high-altitude nuclear tests conducted in the South Atlantic in 1958. The Lockheed X-7 (dubbed the "Flying Stove ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
General Dynamics Mission Systems
General Dynamics Mission Systems is a business unit of American defense and aerospace company General Dynamics. General Dynamics Mission Systems integrates secure communication and information systems and technology. General Dynamics Mission Systems has core manufacturing in secure communications networks; radios and satellite technology for the defense, cyber, public safety, and intelligence communities. History General Dynamics Mission Systems was formed in January 2015 when General Dynamics combined the company's C4 Systems and Advanced Information Systems. General Dynamics C4 Systems was originally owned by GTE and operated as GTE Government Systems. General Dynamics acquired GTE Government Systems in 1999. ''General Dynamics Advanced Information Systems'' provided mission-related systems development, integration and operations support. ''General Dynamics C4 Systems'' was a leading integrator of secure communications, information systems and technology. General Dynamics SATC ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Military Satellite
A military satellite is an artificial satellite used for a military purpose. The most common missions are intelligence gathering, navigation and military communications. The first military satellites were photographic reconnaissance missions. Some attempts were made to develop satellite based weapons but this work was halted in 1967 following the ratification of international treaties banning the deployment of weapons of mass destruction in orbit. As of 2013, there are 950 satellites of all types in Earth orbit. It is not possible to identify the exact number of these that are military satellites partly due to secrecy and partly due to dual purpose missions such as GPS satellites that serve both civilian and military purposes. As of December 2018 there are 320 known military or dual-use satellites in the sky, half of which are owned by the US, followed by Russia, China and India. [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Naval Information Warfare Systems Command
The Naval Information Warfare Systems Command (NAVWAR), based in San Diego, California, is one of six SYSCOM Echelon II organizations within the United States Navy and is the Navy's technical authority and acquisition command for C4ISTAR, C4ISR (Command, Control, Communications, Computers, Intelligence, Surveillance and Reconnaissance), business information technology and space systems. Echelon II means that the organization reports to someone who, in turn, reports directly to the Chief of Naval Operations on the military side. From a civilian perspective, NAVWAR reports to the Assistant Secretary of the Navy (Research, Development and Acquisition), Assistant Secretary of the Navy (Assistant General Counsel of the Navy (Research, Development and Acquisitions), RDA). The command was formerly known as Space and Naval Warfare Systems Command (SPAWAR) and was renamed in June 2019 to better align its identity with its mission. NAVWAR supports over 150 programs managed by the Program E ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Attenuation
In physics, attenuation (in some contexts, extinction) is the gradual loss of flux intensity through a Transmission medium, medium. For instance, dark glasses attenuate sunlight, lead attenuates X-rays, and water and air attenuate both light and sound at variable attenuation rates. Hearing protection device, Hearing protectors help reduce Sound power, acoustic flux from flowing into the ears. This phenomenon is called acoustic attenuation and is measured in decibels (dBs). In electrical engineering and telecommunications, attenuation affects the Wave propagation, propagation of waves and signals in electrical circuits, in optical fibers, and in air. Attenuator (electronics), Electrical attenuators and optical attenuators are commonly manufactured components in this field. Background In many cases, attenuation is an exponential function of the path length through the medium. In optics and in chemical spectroscopy, this is known as the Beer–Lambert law. In engineering, attenu ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Tactic (method)
A tactic is a conceptual action or short series of actions with the aim of achieving a short-term goal. This action can be implemented as one or more specific tasks. The term is commonly used in business, by protest groups, in military, espionage, and law enforcement contexts, as well as in chess, sports or other Competition, competitive activities. Etymology The word originates from the Ancient Greek adjective (''taktikos''), meaning ''that which pertains to ordinance''. The related Ancient Greek noun is (''tagma''), meaning ''ordinance, command''. Both words root in the verb (''tasso''), meaning ''draw up in order, station, appoint'' Distinction from strategy A strategy is a set of guidelines used to achieve an overall objective, whereas tactics are the specific actions aimed at adhering to those guidelines. Military usage In military usage, a Military tactics, military tactic is used by a military unit of no larger than a Division (military), division to implement a spec ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Cellular Network
A cellular network or mobile network is a telecommunications network where the link to and from end nodes is wireless network, wireless and the network is distributed over land areas called ''cells'', each served by at least one fixed-location transceiver (such as a base station). These base stations provide the cell with the network coverage which can be used for transmission of voice, data, and other types of content via radio waves. Each cell's coverage area is determined by factors such as the power of the transceiver, the terrain, and the frequency band being used. A cell typically uses a different set of frequencies from neighboring cells, to avoid interference and provide guaranteed service quality within each cell. When joined together, these cells provide radio coverage over a wide geographic area. This enables numerous Mobile device, devices, including mobile phones, Tablet computer, tablets, laptops equipped with mobile broadband modems, and Wearable technology, wea ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
