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TRC-97
The AN/TRC-97 Radio Set, or TRC-97, is a radio set that has 12 multiplex channels (later expanded to 24 channels and 16 telegraph channels connected to an analog radio. The radio set is a mobile terminal that can transmit up to straight line-of-sight at up to 1 watt, using a traveling wave tube amplifier, or in tropospheric scatter at up to 1 kilowatt, using a tunable klystron amplifier, at a frequency range of 4.4 to 5 gigahertz and 1.2 to 2.2 gigahertz. The set has been manufactured by RCA, Camden, N.J. Features The TRC-97 can be connected to one of three mobile antennas, depending on the distance and signal strength needed. One such antenna that can be used with the TRC-97 is the MRT-2 parabolic tropospheric antenna, measuring across, which is designed to cover distances of up to . Another antenna was a simple feed horn type mounted on a pole. The third is a set of parabolic dishes on (pictured in the photo). These antennas are transported on trailer ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
TRC-97
The AN/TRC-97 Radio Set, or TRC-97, is a radio set that has 12 multiplex channels (later expanded to 24 channels and 16 telegraph channels connected to an analog radio. The radio set is a mobile terminal that can transmit up to straight line-of-sight at up to 1 watt, using a traveling wave tube amplifier, or in tropospheric scatter at up to 1 kilowatt, using a tunable klystron amplifier, at a frequency range of 4.4 to 5 gigahertz and 1.2 to 2.2 gigahertz. The set has been manufactured by RCA, Camden, N.J. Features The TRC-97 can be connected to one of three mobile antennas, depending on the distance and signal strength needed. One such antenna that can be used with the TRC-97 is the MRT-2 parabolic tropospheric antenna, measuring across, which is designed to cover distances of up to . Another antenna was a simple feed horn type mounted on a pole. The third is a set of parabolic dishes on (pictured in the photo). These antennas are transported on trailer ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
601st Tactical Control Wing
The 601st Air Expeditionary Wing is a provisional United States Air Force organization. It was last active as the 601st Air Base Wing with the Seventeenth Air Force at Sembach Air Base, Germany, where it was inactivated on 31 March 1995. The wing was first activated as the 601st Tactical Control Wing at Sembach in July 1968, when it replaced the 601st Tactical Control Group as the headquarters for Seventeenth Air Force's tactical control units and the 603d Air Base Wing as the host organization for Sembach. For most of its existence, the unit controlled elements of the Tactical Air Control SystemThe Tactical Air Control (System 407L) was developed in the 1960s by the United States Air Force as a mobile system to provide semi-automatic command and control of forces and to interface with Army and Naval Forces. It incorporated Aircraft Control and Warning, Tactical Air Support, Air Traffic Control and Command Communications subsystems. Study of the U.S.A.F. Tactical Control Sy ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Sembach Air Base
Sembach Kaserne is a United States Army post in Donnersbergkreis, Germany, near Kaiserslautern, and is about 19 miles (30 km) east of Ramstein Air Base. Prior to 2010, the installation was a United States Air Force installation and prior to 1995 it was a U.S. military airfield known as Sembach Air Base. Named for Sembach, it is the home of the 18th Military Police Brigade, 30th Medical Brigade, and United States Army Corrections Facility-Europe. During the Cold War, the installation housed a variety of U.S. tactical reconnaissance, close air support and tactical air control units as a front line NATO air base. History Origins Sembach Kaserne's origins date back to 1919 after World War I when French occupation troops used the eastern half of the present flightline as an airfield. The French facilities consisted of 10 sheet-iron barracks and 26 wooden hangars with canvas coverings. As part of the general withdrawal of French occupation forces from the left bank of the ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Tropospheric Scatter
Tropospheric scatter, also known as troposcatter, is a method of communicating with microwave radio signals over considerable distances – often up to and further depending on frequency of operation, equipment type, terrain, and climate factors. This method of propagation uses the tropospheric scatter phenomenon, where radio waves at Ultra high frequency, UHF and Super high frequency, SHF Frequency, frequencies are randomly scattered as they pass through the upper layers of the troposphere. Radio signals are transmitted in a narrow beam aimed just above the horizon in the direction of the receiver station. As the signals pass through the troposphere, some of the energy is scattered back toward the Earth, allowing the receiver station to pick up the signal. Normally, signals in the microwave frequency range travel in straight lines, and so are limited to ''Line-of-sight propagation, line-of-sight'' applications, in which the receiver can be 'seen' by the transmitter. Communicat ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Solid State (electronics)
Solid-state electronics means semiconductor electronics: electronic equipment using semiconductor devices such as transistors, diodes and integrated circuits (ICs). The term is also used as an adjective for devices in which semiconductor electronics that have no moving parts replace devices with moving parts, such as the solid-state relay in which transistor switches are used in place of a moving-arm electromechanical relay, or the solid-state drive (SSD) a type of semiconductor memory used in computers to replace hard disk drives, which store data on a rotating disk. History The term "solid-state" became popular at the beginning of the semiconductor era in the 1960s to distinguish this new technology based on the transistor, in which the electronic action of devices occurred in a solid state, from previous electronic equipment that used vacuum tubes, in which the electronic action occurred in a gaseous state. A semiconductor device works by controlling an electric current c ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
602nd Tactical Control Squadron
6 (six) is the natural number following 5 and preceding 7. It is a composite number and the smallest perfect number. In mathematics Six is the smallest positive integer which is neither a square number nor a prime number; it is the second smallest composite number, behind 4; its proper divisors are , and . Since 6 equals the sum of its proper divisors, it is a perfect number; 6 is the smallest of the perfect numbers. It is also the smallest Granville number, or \mathcal-perfect number. As a perfect number: *6 is related to the Mersenne prime 3, since . (The next perfect number is 28 (number), 28.) *6 is the only even perfect number that is not the sum of successive odd cubes. *6 is the root of the 6-aliquot tree, and is itself the aliquot sum of only one other number; the square number, . Six is the only number that is both the sum and the product of three consecutive positive numbers. Unrelated to 6's being a perfect number, a Golomb ruler of length 6 is a "perfect ruler". Si ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
