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Goliath Transmitter
Goliath transmitter was a very low frequency (VLF) transmitter for communicating with submarines, built by Nazi Germany's ''Kriegsmarine'' navy near Kalbe an der Milde in Saxony-Anhalt, Germany, which was in service from 1943 to 1945. It was capable of transmission power of between 100 and 1000 kW and was the most powerful transmitter of its time. History Submarines are shielded by conducting seawater from ordinary radio communication frequencies, but radio waves in the very low frequency (VLF) band from 3 to 30 kHz can penetrate seawater to depths of about 50 feet, allowing submarines to receive communications without surfacing and becoming vulnerable to detection. From 1943 to the end of World War II, Goliath was the main radio transmitter for German submarine radio communications, operating on frequencies between 15 and 25 kHz with a main working frequency of 16.55 kHz. Transmitting up to 1000 kilowatts of power, Goliath's transmissions could be receiv ... [...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] |
Naval Ranks And Insignia Of The Russian Federation
The Navy of the Russian Federation inherited the ranks of the Soviet Navy, although the insignia and uniform were slightly altered. The navy predominantly uses naval-style ranks but also uses army-style ranks for some specialisations, including naval aviation, marine infantry, medical and legal. Ranks and insignia - naval services Officers The following table of navy ranks illustrates those of the Russian Federation. The English translation is given first, followed by the rank in Russian.Addenda to the Decree of the President of Russian Federation #531 , '''', 19 May 2005 Warrant officers and ratings Warrant officers ...[...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Relocated Buildings And Structures
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Relocated may refer to: * ''Relocated'' (album), 2006 album by Camouflage *'' Red vs. Blue: Relocated'', 2009 television miniseries *"The Relocated", Inuit of the High Arctic relocation The High Arctic relocation (french: La délocalisation du Haut-Arctique, iu, ᖁᑦᑎᒃᑐᒥᐅᑦᑕ ᓅᑕᐅᓂᖏᑦ, Quttiktumut nuutauningit) took place during the Cold War in the 1950s, when 92 Inuit were moved by the Government of Ca ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Radio Masts And Towers In Germany
Radio is the technology of signaling and communicating using radio waves. Radio waves are electromagnetic waves of frequency between 30 hertz (Hz) and 300 gigahertz (GHz). They are generated by an electronic device called a transmitter connected to an antenna which radiates the waves, and received by another antenna connected to a radio receiver. Radio is very widely used in modern technology, in radio communication, radar, radio navigation, remote control, remote sensing, and other applications. In radio communication, used in radio and television broadcasting, cell phones, two-way radios, wireless networking, and satellite communication, among numerous other uses, radio waves are used to carry information across space from a transmitter to a receiver, by modulating the radio signal (impressing an information signal on the radio wave by varying some aspect of the wave) in the transmitter. In radar, used to locate and track objects like aircraft, ships, spacecraft a ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Former Radio Masts And Towers
A former is an object, such as a template, gauge or cutting die, which is used to form something such as a boat's hull. Typically, a former gives shape to a structure that may have complex curvature. A former may become an integral part of the finished structure, as in an aircraft fuselage, or it may be removable, being using in the construction process and then discarded or re-used. Aircraft formers Formers are used in the construction of aircraft fuselage, of which a typical fuselage has a series from the nose to the empennage, typically perpendicular to the longitudinal axis of the aircraft. The primary purpose of formers is to establish the shape of the fuselage and reduce the column length of stringers to prevent instability. Formers are typically attached to longerons, which support the skin of the aircraft. The "former-and-longeron" technique (also called stations and stringers) was adopted from boat construction, and was typical of light aircraft built until the ad ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Military Radio Systems
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 f ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Communications In The Soviet Union
Communication (from la, communicare, meaning "to share" or "to be in relation with") is usually defined as the transmission of information. The term may also refer to the message communicated through such transmissions or the field of inquiry studying them. There are many disagreements about its precise definition. John Peters argues that the difficulty of defining communication emerges from the fact that communication is both a universal phenomenon and a specific discipline of institutional academic study. One definitional strategy involves limiting what can be included in the category of communication (for example, requiring a "conscious intent" to persuade). By this logic, one possible definition of communication is the act of developing meaning among entities or groups through the use of sufficiently mutually understood signs, symbols, and semiotic conventions. An important distinction is between verbal communication, which happens through the use of a language, and ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Buildings And Structures In Nizhny Novgorod Oblast
A building, or edifice, is an enclosed structure with a roof and walls standing more or less permanently in one place, such as a house or factory (although there's also portable buildings). Buildings come in a variety of sizes, shapes, and functions, and have been adapted throughout history for a wide number of factors, from building materials available, to weather conditions, land prices, ground conditions, specific uses, prestige, and aesthetic reasons. To better understand the term ''building'' compare the list of nonbuilding structures. Buildings serve several societal needs – primarily as shelter from weather, security, living space, privacy, to store belongings, and to comfortably live and work. A building as a shelter represents a physical division of the human habitat (a place of comfort and safety) and the ''outside'' (a place that at times may be harsh and harmful). Ever since the first cave paintings, buildings have also become objects or canvasses of much artistic ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Vileyka VLF Transmitter
The "Vileyka" VLF transmitter is the site of the 43rd Communications Center of the Russian Navy (russian: 43-й узел связи ВМФ России), located west of the town of Vileyka in Belarus (). The "Vileyka" VLF transmitter is an important facility for transmitting orders to submarines in the very low frequency range. Beside this, it is used for transmitting the time signal RJH69 at certain times. In common with the former Goliath transmitter of the ''Kriegsmarine'' in World War II World War II or the Second World War, often abbreviated as WWII or WW2, was a world war that lasted from 1939 to 1945. It involved the vast majority of the world's countries—including all of the great powers—forming two opposin ..., the antenna system of the "Vileyka" VLF transmitter consists of three antenna systems with a central mast insulated against ground from which antenna wires run to six grounded ring masts, where they are fixed by insulators. As at former Goliat ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Beta (time Signal)
Beta is a time signal service in the VLF range in Russia, operated by the Russian Navy.C3 Systems of the CIS Navy It is controlled by .. Official signal specification. There are 6 transmitter stations, which take turns transmitting time signals and other communications. Each transmitter has 1 or 2 scheduled sessions per day lasting 31–41 minutes, depending on transmi ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Kstovsky District
Kstovsky District (russian: Ксто́вский райо́н) is an administrative district (raion), one of the forty in Nizhny Novgorod Oblast, Russia.Order #3-od Municipally, it is incorporated as Kstovsky Municipal District.Resolution #670 It is located in the center of the oblast. The area of the district is . Its administrative center is the town of Kstovo. Population: 112,823 ( 2010 Census); The population of Kstovo accounts for 59.1% of the district's total population. Geography Kstovsky District is located along the southern shore of the Volga River. The westernmost part of the district is adjacent to the city of Nizhny Novgorod. It is gradually becoming more suburban, its housing developments and shopping centers closely linked to the life of the city. The east of the district is more rural, with potato, root crops, and grain fields and cattle pastures alternating with forests and dacha areas. History The district was established in 1929 and given its present name in 19 ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
