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Dnepr Radar
Dnestr radar () and Dnepr radar (), both known by the NATO reporting name Hen House, are the first generation of Soviet space surveillance and early warning radars. Six radars of this type were built on the periphery of the Soviet Union starting in the 1960s to provide ballistic missile warnings for attacks from different directions. They were the primary Soviet early warning radars for much of the later Cold War. In common with other Soviet and Russian early warning radars they are named after rivers, the Dnestr and the Dnepr. The Dnestr/Dnepr radars were intended to be replaced by the newer Daryal radars starting in the 1990s. Only two of the planned Daryal radars became operational, due to issues such as the dissolution of the Soviet Union. As of 2012, the Russian early warning network still consists of some radars of this vintage. It is likely that all the existing radars will be replaced by the third generation Voronezh radars by 2020. TsSO-P The Dnestr radar came from w ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Soviet Union
The Union of Soviet Socialist Republics. (USSR), commonly known as the Soviet Union, was a List of former transcontinental countries#Since 1700, transcontinental country that spanned much of Eurasia from 1922 until Dissolution of the Soviet Union, it dissolved in 1991. During its existence, it was the list of countries and dependencies by area, largest country by area, extending across Time in Russia, eleven time zones and sharing Geography of the Soviet Union#Borders and neighbors, borders with twelve countries, and the List of countries and dependencies by population, third-most populous country. An overall successor to the Russian Empire, it was nominally organized as a federal union of Republics of the Soviet Union, national republics, the largest and most populous of which was the Russian SFSR. In practice, Government of the Soviet Union, its government and Economy of the Soviet Union, economy were Soviet-type economic planning, highly centralized. As a one-party state go ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Don River (Russia)
The Don () is the fifth-longest river in Europe. Flowing from Central Russia to the Sea of Azov in Southern Russia, it is one of Russia's largest rivers and played an important role for traders from the Byzantine Empire. Its basin is between the Dnieper basin to the west, the lower Volga basin immediately to the east, and the Oka basin (tributary of the Volga) to the north. Native to much of the basin were Slavic nomads. The Don rises in the town of Novomoskovsk southeast of Tula (in turn south of Moscow), and flows 1,870 kilometres to the Sea of Azov. The river's upper half meanders subtly south; however, its lower half consists of a great eastern curve, including Voronezh, making its final stretch, an estuary, run west south-west. The main city on the river is Rostov-on-Don. Its main tributary is the Seversky Donets, centred on the mid-eastern end of Ukraine, thus the other country in the overall basin. To the east of a series of three great ship locks and as ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
High Altitude Nuclear Explosion
High-altitude nuclear explosions are the result of nuclear weapons testing within the upper layers of the Earth's atmosphere and in outer space. Several such tests were performed at high altitudes by the United States and the Soviet Union between 1958 and 1962. The Partial Test Ban Treaty was passed in October 1963, ending atmospheric and exoatmospheric nuclear tests. The Outer Space Treaty of 1967 banned the stationing of nuclear weapons in space, in addition to other weapons of mass destruction. The Comprehensive Nuclear-Test-Ban Treaty of 1996 prohibits all nuclear testing; whether over- or underground, underwater or in the atmosphere, but hasn't entered into force yet as it hasn't been ratified by some of the states party to the Treaty. EMP generation The strong electromagnetic pulse (EMP) that results has several components. In the first few tenths of nanoseconds, about a tenth of a percent of the weapon yield appears as powerful gamma rays with energies of one to three ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Horn Antenna
A horn antenna or microwave horn is an antenna (radio), antenna that consists of a flaring metal waveguide shaped like a horn (acoustic), horn to direct radio waves in a beam. Horns are widely used as antennas at Ultrahigh frequency, UHF and microwave frequencies, above 300 MHz. They are used as Antenna feed, feed antennas (called feed horns) for larger antenna structures such as parabolic antennas, as standard calibration antennas to measure the Antenna gain, gain of other antennas, and as directive antennas for such devices as radar guns, Sliding door operator, automatic door openers, and microwave radiometers. Their advantages are moderate directivity, broad Bandwidth (signal processing), bandwidth, low losses, and simple construction and adjustment. One of the first horn antennas was constructed in 1897 by Bengali-Indian radio researcher Jagadish Chandra Bose in his pioneering experiments with microwaves. reprinted in The modern horn antenna was invented indepe ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Ultra High Frequency
Ultra high frequency (UHF) is the ITU designation for radio frequencies in the range between 300 megahertz (MHz) and 3 gigahertz (GHz), also known as the decimetre band as the wavelengths range from one meter to one tenth of a meter (one decimetre). Radio waves with frequencies above the UHF band fall into the super-high frequency (SHF) or microwave frequency range. Lower frequency signals fall into the VHF ( very high frequency) or lower bands. UHF radio waves propagate mainly by line of sight; they are blocked by hills and large buildings although the transmission through building walls is strong enough for indoor reception. They are used for television broadcasting, cell phones, satellite communication including GPS, personal radio services including Wi-Fi and Bluetooth, walkie-talkies, cordless phones, satellite phones, and numerous other applications. The IEEE defines the UHF radar band as frequencies between 300 MHz and 1 GHz. Two other IEEE ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
KB-1
JSC NPO Almaz named after A.A. Raspletin (, former SB-1, 1947–1950; KB-1, 1950–1966; MKB Strela, 1966–1971; TsKB Almaz, 1971–1988; NPO Almaz, 1988–2008; GSKB Almaz-Antey, 2008–2015) is a Soviet/Russian military R&D enterprise founded in 1947. It is the core of the Almaz-Antey holding. Headquarters – Moscow, Leningradsky av., 80. History The company is named after its chief designer . Since 1955, KB-1 developed such air defence missile systems as the S-25 Berkut, S-75 Dvina, S-125 Neva/Pechora, S-200 Angara/Vega/Dubna, S-300, S-400 Triumf, S-300PMU, S-300PMU2, and S-350E Vityaz. On 30 November 2009, the board of directors of Almaz-Antey voted to reorganize the joint-stock companies NIEMI, NIIRP, MNIIRE Altair and MNIIPA, merging them with NPO Almaz to form GSKB joint venture. GSKB became the head R&D arm of Almaz-Antey holdings, becoming its Head System Design Bureau (). NIIRP scientific & research center is developing the Joint system of air and ballist ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Kazakh SSR
The Kazakh Soviet Socialist Republic, also known as Soviet Kazakhstan, the Kazakh SSR, KSSR, or simply Kazakhstan, was one of the transcontinental constituent republics of the Soviet Union (USSR) from 1936 to 1991. Located in northern Central Asia, it was created on 5 December 1936 from the Kazakh ASSR, an autonomous republic of the Russian SFSR. At in area, it was the second-largest republic in the USSR, after the Russian SFSR. Its capital was Alma-Ata (today known as Almaty). During its existence as a Soviet Socialist Republic, it was ruled by the Communist Party of the Kazakh SSR (QKP). On 25 October 1990, the Supreme Soviet of the Kazakh SSR declared its sovereignty on its soil. QKP first secretary Nursultan Nazarbayev was elected president in April of that year – a role he remained in until 2019. The Kazakh SSR was renamed the Republic of Kazakhstan on 10 December 1991, which declared its independence six days later, as the last republic to secede from the USSR ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Sary Shagan
Sary Shagan (; ) is an anti-ballistic missile testing range located in Kazakhstan. On 17 August 1956 the Council of Ministers of the Soviet Union authorized plans for an experimental facility for missile defence located at Sary Shagan, on the west bank of Lake Balkhash. The first missile launched from the facility was a V-1000 on 16 October 1958, but the facilities for full-scale testing were not ready until 1961. Sary Shagan remains in use, with the latest known launch on 2 December 2022. The town of Sary Shagan was a closed city until 2005. The administrative centre, Priozersk remained a closed city. The length of the site is 480 km. The Sary Shagan range was the intended landing site for the sample return canister of the Russian Fobos-Grunt mission. History The first and only one in Eurasia test site for the development and testing of anti-missile weapons. In USSR, the official name of the test site was State Research and Testing Site No. 10 USSR Ministry of D ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
A-35 Anti-ballistic Missile System
The A-35 anti-ballistic missile system was a USSR, Soviet military anti-ballistic missile (ABM) system deployed around Moscow to intercept enemy ballistic missiles targeting the city or its surrounding areas. The A-35 was the only Soviet ABM system allowed under the 1972 Anti-Ballistic Missile Treaty. In development as of the 1960s and in operation from June 1972 until the 1990s, it featured the nuclear-armed ABM-1 Galosh, A350 Exosphere, exoatmospheric interceptor missile. The A-35 was supported by two Dunay radars (NATO reporting name, NATO reporting names: Cat House and Dog House) and the Soviet early warning system. It was followed by the A-135 anti-ballistic missile system, A-135 in the early 1990s. System A The first Soviet anti-ballistic missile system was System A, which began development at Sary Shagan, Sary Shagan's Test Range A in July 1956, followed by testing starting in 1959. System A used the Fakel V-1000, V-1000 missile to intercept enemy missiles. First launch of t ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Dissolution Of The Soviet Union
The Soviet Union was formally dissolved as a sovereign state and subject of international law on 26 December 1991 by Declaration No. 142-N of the Soviet of the Republics of the Supreme Soviet of the Soviet Union. Declaration No. 142-Н of the Soviet of the Republics of the Supreme Soviet of the Soviet Union, formally establishing the dissolution of the Soviet Union as a state and subject of international law. It also brought an end to the Soviet Union's federal government and General Secretary (also President) Mikhail Gorbachev's effort to reform the Soviet political and economic system in an attempt to stop a period of political stalemate and economic backslide. The Soviet Union had experienced internal stagnation and ethnic separatism. Although highly centralized until its final years, the country was made up of 15 top-level republics that served as the homelands for different ethnicities. By late 1991, amid a catastrophic political crisis, with several republics al ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
