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EC-130E Hercules
The Lockheed Martin EC-130 series comprises several slightly different versions of the Lockheed C-130 Hercules that have been and continue to be operated by the U.S. Air Force and, until the 1990s, the U.S. Navy. The EC-130E Airborne Battlefield Command and Control Center (ABCCC) was based on a basic C-130E platform and provided tactical airborne command post capabilities to air commanders and ground commanders in low air threat environments. The EC-130E ABCCC aircraft were retired in 2002 and the mission was 'migrated' to the E-8 JSTARS and E-3 AWACS fleets. The EC-130E Commando Solo was an earlier version of a U.S. Air Force and Air National Guard psychological operations (PSYOPS) aircraft and this aircraft also employed a C-130E airframe, but was modified by using the mission electronic equipment from the retired EC-121S Coronet Solo aircraft. This airframe served during the first Gulf War (Operation Desert Storm), Operation Uphold Democracy, the second Gulf War (Operat ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Lockheed Corporation
The Lockheed Corporation was an American aerospace manufacturer. Lockheed was founded in 1926 and later merged with Martin Marietta to form Lockheed Martin in 1995. Its founder, Allan Lockheed, had earlier founded the similarly named but otherwise-unrelated Loughead Aircraft Manufacturing Company, which was operational from 1912 to 1920. History Origins Allan Loughead and his brother Malcolm Loughead had operated an earlier aircraft company, Loughead Aircraft Manufacturing Company, which was operational from 1912 to 1920. The company built and operated aircraft for paying passengers on sightseeing tours in California and had developed a prototype for the civil market, but folded in 1920 due to the flood of surplus aircraft deflating the market after World War I. Allan went into the real estate market while Malcolm had meanwhile formed a successful company marketing brake systems for automobiles. On December 13, 1926, Allan Lockheed, Jack Northrop, John Northrop, Kenneth K ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Harrisburg International Airport
Harrisburg International Airport is a public airport in Middletown, Dauphin County, Pennsylvania, Middletown, Pennsylvania, nine miles (15 km) southeast of Harrisburg, Pennsylvania, Harrisburg. It is owned by the Susquehanna Area Regional Airport Authority., effective September 16, 2022 The airport code MDT refers to Middletown, Dauphin County, Pennsylvania, Middletown, the town in which the airport is located. Planes landing at MDT from the south are often routed near Three Mile Island Nuclear Generating Station a few miles from the airport. The airport, frequently referred to as HIA, is the primary commercial airport in South Central Pennsylvania and is the third-busiest airport in Pennsylvania for passenger enplanements and cargo shipments behind Philadelphia International Airport and Pittsburgh International Airport. History Harrisburg International Airport has been serving south-central Pennsylvania for over 100 years. Beginning in 1898, the Signal Corps (United State ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Air Force Special Operations Command
Air Force Special Operations Command (AFSOC), headquartered at Hurlburt Field, Florida, is the special operations component of the United States Air Force. An Air Force major command (MAJCOM), AFSOC is also the U.S. Air Force component command to United States Special Operations Command (USSOCOM), a unified combatant command located at MacDill Air Force Base, Florida. AFSOC provides all Air Force Special Operations Forces (SOF) for worldwide deployment and assignment to regional unified combatant commands. Before 1983, Air Force special operations forces were primarily assigned to the Tactical Air Command (TAC) and were generally deployed under the control of U.S. Air Forces in Europe (USAFE) or, as had been the case during the Vietnam War, Pacific Air Forces (PACAF). Just as it had relinquished control of the C-130 theater airlift fleet to Military Airlift Command (MAC) in 1975, TAC relinquished control of Air Force SOF to MAC in December 1982. AFSOC was initially establishe ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Pennsylvania Air National Guard
The Pennsylvania Air National Guard (PA ANG) is the aerial militia of the Commonwealth of Pennsylvania, United States of America. It is, along with the Pennsylvania Army National Guard, an element of the Pennsylvania National Guard. As commonwealth militia units, the units in the Pennsylvania Air National Guard are not in the normal United States Air Force chain of command. They are under the jurisdiction of the Governor of Pennsylvania through the office of the Pennsylvania Adjutant General unless they are federalized by order of the President of the United States. The Pennsylvania Air National Guard is headquartered at Fort Indiantown Gap, Pennsylvania, and its commander is Brigadier General Michael J. Regan Jr.. Overview Under the "Total Force" concept, Pennsylvania Air National Guard units are considered to be Air Reserve Components (ARC) of the United States Air Force (USAF). Pennsylvania ANG units are trained and equipped by the Air Force and are operationally gained by ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
193d Special Operations Wing
The 193rd Special Operations Wing is a unit of the Pennsylvania Air National Guard, stationed at Harrisburg Air National Guard Base, Middletown, Pennsylvania. The wing is gained by the Commonwealth of Pennsylvania when in a "state" status, as well as by the United States Air Force and Air Force Special Operations Command in its Federal capacity as part of the Air National Guard. The wing was organized as a group, the 193rd Tactical Electronic Warfare Group. Although it has never been mobilized as a unit, most of its equipment and personnel have been individually called up to serve in Southeast Asia and in Desert Storm. Mission The 193rd's primary wartime and contingency operations mission is to broadcast radio and television signals to target populations from an airborne transmitter, jamming existing television and radio signals where necessary. Messages are not developed within the wing itself, but are provided by staff of the United States Army's 4th Psychological Operations ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
High Frequency
High frequency (HF) is the ITU designation for the range of radio frequency electromagnetic waves (radio waves) between 3 and 30 megahertz (MHz). It is also known as the decameter band or decameter wave as its wavelengths range from one to ten decameters (ten to one hundred meters). Frequencies immediately below HF are denoted medium frequency (MF), while the next band of higher frequencies is known as the very high frequency (VHF) band. The HF band is a major part of the shortwave band of frequencies, so communication at these frequencies is often called shortwave radio. Because radio waves in this band can be reflected back to Earth by the ionosphere layer in the atmosphere – a method known as "skip" or " skywave" propagation – these frequencies are suitable for long-distance communication across intercontinental distances and for mountainous terrains which prevent line-of-sight communications. The band is used by international shortwave broadcasting stations ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Frequency Modulation
Frequency modulation (FM) is the encoding of information in a carrier wave by varying the instantaneous frequency of the wave. The technology is used in telecommunications, radio broadcasting, signal processing, and Run-length limited#FM: .280.2C1.29 RLL, computing. In Analog signal, analog frequency modulation, such as radio broadcasting, of an audio signal representing voice or music, the instantaneous frequency deviation, i.e. the difference between the frequency of the carrier and its center frequency, has a functional relation to the modulating signal amplitude. Digital data can be encoded and transmitted with a type of frequency modulation known as frequency-shift keying (FSK), in which the instantaneous frequency of the carrier is shifted among a set of frequencies. The frequencies may represent digits, such as '0' and '1'. FSK is widely used in computer modems, such as fax modems, telephone caller ID systems, garage door openers, and other low-frequency transmissions. R ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
AM Broadcasting
AM broadcasting is radio broadcasting using amplitude modulation (AM) transmissions. It was the first method developed for making audio radio transmissions, and is still used worldwide, primarily for medium wave (also known as "AM band") transmissions, but also on the longwave and shortwave radio bands. The earliest experimental AM transmissions began in the early 1900s. However, widespread AM broadcasting was not established until the 1920s, following the development of vacuum tube receivers and transmitters. AM radio remained the dominant method of broadcasting for the next 30 years, a period called the "Golden Age of Radio", until television broadcasting became widespread in the 1950s and received most of the programming previously carried by radio. Subsequently, AM radio's audiences have also greatly shrunk due to competition from FM (FM broadcasting, frequency modulation) radio, Digital audio broadcasting, Digital Audio Broadcasting (DAB), satellite radio, HD Radio, HD (digi ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
C-130J Hercules
The Lockheed Martin C-130J Super Hercules is a four-engine turboprop military transport aircraft. The C-130J is a comprehensive update of the Lockheed C-130 Hercules, with new engines, flight deck, and other systems. The C-130J is the newest version of the C-130 Hercules and the only model in production. , 500 C-130J aircraft were delivered to 26 operators in 22 countries. Development On 16 December 1994, Lockheed received the launch order for the J-model from the United Kingdom's Royal Air Force (RAF). The C-130J launch order occurred after a UK government stalemate of several months that concerned whether to buy new transport aircraft from Europe or the United States. It was paired with a commitment to buy 40 to 50 of the proposed European Future Large Aircraft aircraft (FLA, which was later designated as the A400M). The FLA commitment, which reduced the size of the C-130J launch order, was intended to ensure a 20 percent British workshare in the FLA program, and to prevent ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Islamic State Of Iraq And The Levant
An Islamic state is a State (polity), state that has a form of government based on sharia, Islamic law (sharia). As a term, it has been used to describe various historical Polity, polities and theories of governance in the Islamic world. As a translation of the Arabic term ''dawlah islāmiyyah'' ( ar, دولة إسلامية) it refers to a modern notion associated with political Islam (Islamism). Notable examples of historical Islamic states include the State of Medina, established by the Islamic prophet Muhammad, and the Arab Caliphate which continued under his successors and the Umayyad Caliphate, Umayyads. The concept of the modern Islamic state has been articulated and promoted by ideologues such as Rashid Rida, Sayyid Rashid Rida, Mullah Omar, Mohammed Omar, Abul A'la Maududi, Ayatollah Ruhollah Khomeini, Israr Ahmed, Sayyid Qutb and Hassan al-Banna. Implementation of Islamic law plays an important role in modern theories of the Islamic state, as it did in classical Islami ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
