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Courier 1A
Courier 1B, is the world's first active repeater communications satellite, Courier 1B was successfully launched on October 4, 1960 at 17:45:00 GMT from Cape Canaveral, Florida. The first Courier satellite in Project Courier, Courier 1A, was lost 2.5 minutes after lift-off on August 18, 1960. History As a Cold War initiative, Courier 1B was the 26th satellite launched by the US as opposed to the Soviet Union's six satellites since Sputnik I in 1957. Proposed by the US Army Signal Corps in September 1958, Courier 1B was a follow-up to SCORE program launched December 18, 1958. SCORE "was the first step of an evolutionary program to develop communication satellite systems for use by the military services". The Project Courier was a joint program of the US Department of Defense (ARPA) along with the US Army Signal Research and Development Laboratory at Fort Monmouth, New Jersey. Courier 1B would receive messages or photographs, store them, and then re-transmit them. Courier 1B was ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Communications Satellite
A communications satellite is an artificial satellite that relays and amplifies radio telecommunication signals via a Transponder (satellite communications), transponder; it creates a communication channel between a source transmitter and a Radio receiver, receiver at different locations on Earth. Communications satellites are used for television, telephone, radio, internet, and military applications. Many communications satellites are in geostationary orbit above the equator, so that the satellite appears stationary at the same point in the sky; therefore the satellite dish antennas of ground stations can be aimed permanently at that spot and do not have to move to track the satellite. Others form satellite constellations in low Earth orbit, where antennas on the ground have to follow the position of the satellites and switch between satellites frequently. The radio waves used for telecommunications links travel by Line-of-sight propagation, line of sight and so are obstructe ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Signal Corps (United States Army)
The United States Army Signal Corps (USASC) is a branch of the United States Army responsible for creating and managing communications and information systems for the command and control of combined arms forces. It was established in 1860 by Major Albert J. Myer and played a significant role during the American Civil War. It has the initial responsibility for portfolios and new technologies that are eventually transferred to other U.S. government entities. Such responsibilities included military intelligence, weather forecasting, and aviation. Mission statement Support for the command and control of combined arms forces. Signal support includes network operations (information assurance, information dissemination management, and network management) and management of the electromagnetic spectrum. Signal support encompasses all aspects of designing, installing, data communications networks that employ single and multi-channel satellite, tropospheric scatter, terrestrial microwav ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
PGM-17 Thor
The PGM-17A Thor was the first operative ballistic missile of the United States Air Force (USAF). It was named after the Thor, Norse god of thunder. It was deployed in the United Kingdom between 1959 and September 1963 as an intermediate-range ballistic missile (IRBM) with hydrogen bomb, thermonuclear warheads. Thor was in height and in diameter. The first generation of Thor missiles were rushed into service, and design mistakes resulted in a 24% launch failure rate. The competing PGM-19 Jupiter missile saw more use, but both were quickly eclipsed by the Air Force's long range ICBM program, which could be fired from U.S. soil. By 1959, with the Atlas (rocket family), Atlas missile well on its way to operational status, both Thor and Jupiter programs became obsolete as delivery vehicles, yet continued to be built and deployed until 1963 for political reasons and to maintain aerospace industry employment. The missile's lasting legacy continued as the Thor (rocket family), Thor ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Florida
Florida ( ; ) is a U.S. state, state in the Southeastern United States, Southeastern region of the United States. It borders the Gulf of Mexico to the west, Alabama to the northwest, Georgia (U.S. state), Georgia to the north, the Atlantic Ocean to the east, the Straits of Florida to the south, and The Bahamas to the southeast. About two-thirds of Florida occupies a peninsula between the Gulf of Mexico and the Atlantic Ocean. It has the List of U.S. states by coastline, longest coastline in the contiguous United States, spanning approximately , not including its many barrier islands. It is the only state that borders both the Gulf of Mexico and the Atlantic Ocean. With a population of over 23 million, it is the List of U.S. states and territories by population, third-most populous state in the United States and ranks List of states and territories of the United States by population density, seventh in population density as of 2020. Florida spans , ranking List of U.S. states ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Cape Canaveral
Cape Canaveral () is a cape (geography), cape in Brevard County, Florida, in the United States, near the center of the state's Atlantic Ocean, Atlantic coast. Officially Cape Kennedy from 1963 to 1973, it lies east of Merritt Island, separated from it by the Banana River. It is part of a region known as the Space Coast, and is the site of the Cape Canaveral Space Force Station. Since many U.S. spacecraft have been launched from both the station and the Kennedy Space Center on adjacent Merritt Island, the two are sometimes conflation, conflated with each other. Other features of the cape include Port Canaveral, one of the busiest Maritime passenger terminal, cruise ports in the world, and the Cape Canaveral Lighthouse. The city of Cape Canaveral, Florida, Cape Canaveral lies just south of the Port Canaveral District. Mosquito Lagoon, the Indian River (Florida), Indian River, Merritt Island National Wildlife Refuge and Canaveral National Seashore are also features of this area. ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Diplexer
A diplexer is a passive device that implements frequency-domain multiplexing. Two ports (e.g., L and H) are multiplexed onto a third port (e.g., S). The signals on ports L and H occupy disjoint frequency bands. Consequently, the signals on L and H can coexist on port S without interfering with each other. Typically, the signal on port L will occupy a single low frequency band and the signal on port H will occupy a higher frequency band. In that situation, the diplexer consists of a lowpass filter connecting ports L and S and high pass filter connecting ports H and S. Ideally, all the lowband signal power on port L is transferred to the S port and vice versa. All the highband signal power on port H is transferred to port S and vice versa. Ideally, the separation of the signals is complete. None of the low band signal is transferred from the L port to the H port. In the real world, some power will be lost, and some signal power will leak to the wrong port. The diplexer, being ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Microwave Antenna
A microwave antenna is a physical transmission device used to send and receive microwaves between two or more locations. In addition to broadcasting, antennas are also used in radar, radio astronomy and electronic warfare. Microwave frequency bands Uses * One-way (e.g. television broadcasting) and two-way telecommunication using communications satellites * Terrestrial microwave relay links in telecommunications networks including backbone or backhaul carriers in cellular networks linking BTS- BSC and BSC- MSC. * Radar * Radio astronomy * Communications intelligence * Electronic warfare Antenna types Reflector antennas A parabolic antenna is an antenna that uses a parabolic reflector, a curved surface with the cross-sectional shape of a parabola, to direct the radio waves. These devices range anywhere from 6" to more than 12' diameter depending on application and use. Horn antennas A horn antenna or microwave horn is an antenna that consists of a flaring metal wave ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Whip Antenna
A whip antenna is an antenna consisting of a straight flexible wire or rod. The bottom end of the whip is connected to the radio receiver or transmitter. A whip antenna is a form of monopole antenna. The antenna is designed to be flexible so that it does not break easily, and the name is derived from the whip-like motion that it exhibits when disturbed. Whip antennas for portable radios are often made of a series of interlocking telescoping metal tubes, so they can be retracted when not in use. Longer whips, made for mounting on vehicles and structures, are made of a flexible fiberglass rod around a wire core and can be up to long. The length of a whip antenna is determined by the wavelength of the radio waves it is used with. Their length varies from compact electrically short antennas wavelength long, up to wavelength to improve directivity. The most common type is the ''quarter-wave whip'', which is approximately long. Whips are the most common type o ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Loral Space & Communications
Loral Space & Communications Inc. is a Delaware-domiciled satellite communications company headed by Michael B. Targoff. The company was formed in 1996 from the remnants of Loral Corporation when Loral divested its defense electronics and system integration businesses to Lockheed Martin for $9.1 billion. In 2006, Bernard L. Schwartz retired after leading the company for 34 years. Loral presently has an investment in Telesat Canada in partnership with the Public Sector Pension Investment Board of Canada, and merged into a new stock offering (TSAT) on the Nasdaq in November, 2020. The company also participates in a number of international and domestic joint ventures, including an ownership stake in XTAR. History On March 20, 1998, Loral completed the acquisition of Orion Network Systems, Inc., through the exchange of common stock. The transaction was valued at approximately $479 million. In January 2002, Loral reached a settlement with the U.S. Government in a case relating to t ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Space Systems/Loral
SSL, formerly Space Systems/Loral, LLC (SS/L), of Palo Alto, California, is a wholly owned manufacturing subsidiary of Maxar Technologies. SSL designs and builds satellites and space systems for a wide variety of government and commercial customers. Its products include high-powered direct-to-home broadcast satellites, commercial weather satellites, digital audio radio satellites, Earth observation satellites and spot-beam satellites for data networking applications. History The company was founded as the Western Development Laboratories (WDL) of Philco in 1957, which became Philco-Ford in 1966. The Space Systems Division was made a stand-alone Division of Aeronutronic/Ford Aerospace and was acquired by Loral Corp. in 1990 for $715 million from Ford Motor Company, and renamed Space Systems/Loral. All other divisions of Ford Aerospace including Western Development Labs located in San Jose, California, San Jose were also acquired by Loral at that time. In 2012 Space Systems/Lo ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Loral Corporation
Loral Corporation was a defense contractor founded in 1948 in New York by William Lorenz and Leon Alpert as Loral Electronics Corporation. The company's name was taken from the first syllables of each founder's surname. History Loral Corporation originally developed radar and sonar systems for the US Navy. In 1959 it went public with an initial offering of 250,000 shares at $12 each. Part of the proceeds from this offering were used to build a new headquarters on its site at 825 Bronx River Avenue, in the Soundview section of The Bronx, New York. In 1959 it began to diversify, buying several smaller companies, through which it won more military contracts. Some purchased companies included Willor Manufacturing Corp., American Beryllium Co., Inc., of Sarasota, Florida, Arco Electronics, and several plastics companies. In 1961, it formed a division for developing communications, telemetry, and space navigation systems for satellites. As its expansion increased, it borro ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Ford Aerospace
Ford Aerospace was the aerospace and defense division of Ford Motor Company. It was based in Dearborn, Michigan and was active from 1956 (originally as Philco and then Philco Ford) through 1990, when it was sold to the Loral Corporation. Major divisions were located in Palo Alto CA (Space Systems Division), San Jose CA (Western Development Laboratories) and Newport Beach (Aeronutronic Division). Other operations were located in a number of other states around the United States. History The company was established in 1956. It was renamed to "Ford Aerospace and Communications Corporation" in 1976, and then to "Ford Aerospace Corporation" in 1988. The Engineering and Research Center campus was located on Jamboree Road at Ford Road, overlooking the Santa Catalina Strait of the Pacific Ocean in Newport Beach. [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
