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SINCGARS
Single Channel Ground and Airborne Radio System (SINCGARS) is a VHF combat network radio (CNR) used by U.S. and allied military forces. In the CNR network, the SINCGARS’ primary role is voice transmission between surface and airborne command and control (C2) assets. The SINCGARS family replaced the Vietnam War-era synthesized single frequency radios ( AN/PRC-77 and AN/VRC-12), although it can work with them. The airborne AN/ARC-201 radio is phasing out the older tactical air-to-ground radios (AN/ARC-114 and AN/ARC-131). The SINCGARS is designed on a modular basis to achieve maximum commonality among various ground, maritime, and airborne configurations. A common receiver/transmitter (RT) is used in the ground configurations. The modular design also reduces the burden on the logistics system to provide repair parts. The SINCGARS can operate in either the single-channel (SC) or frequency hopping (FH) mode, and stores both SC frequencies and FH loadsets. The system is compa ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] [Amazon] |
AN/PRC-77
The AN/PRC-77 Portable Transceiver, also known as AN/PRC 77 Radio Set, is a man-pack, portable VHF FM combat-net radio transceiver manufactured by Associated Industries Manufacturer's website. and used to provide short-range, two-way voice communication. In accordance with the (JETDS), the "''AN/PRC-77''" designation represents the 77th design of an Army-Navy electronic device for portable two-way communications radio. The JETDS system also now is used to name all |
AN/VRC-12
The AN/VRC-12 is the lowest-numbered element of a family of vehicular Very high frequency, VHF-Frequency modulation, FM Frequency synthesizer, synthesized vehicular radio communications systems developed by Avco Corporation and introduced around 1963 and used extensively by the U.S. military during the Vietnam War and for many years after. It replaced the earlier AN/GRC-3 through 8 series and was, in turn, replaced by the Single Channel Ground and Airborne Radio System (SINCGARS) in the early 1990s. The sets were manufactured by its original developer, Avco based in Cincinnati, Oh, Cincinnati, Ohio (originally by its Electronic & Ordnance Div., Evendale, Ohio), and Magnavox, Ft. Wayne, Indiana (with LTV Corporation, LTV Electrosystems, Inc. and Memcor, Inc., supplying certain components, such as receivers and transmitters.) Texas Instruments was one of the principal bidders that proposed improved, ultra-reliable (failure-free) variant of VRC-12 in the late 1960s, but failed to win ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] [Amazon] |
Frequency-hopping Spread Spectrum
Frequency-hopping spread spectrum (FHSS) is a method of transmitting radio signals by rapidly changing the carrier frequency among many frequencies occupying a large spectral band. The changes are controlled by a code known to both transmitter and receiver (radio), receiver. FHSS is used to avoid interference, to prevent eavesdropping, and to enable code-division multiple access (CDMA) communications. The frequency band is divided into smaller sub-bands. Signals rapidly change ("hop") their carrier frequencies among the center frequencies of these sub-bands in a determined order. Interference at a specific frequency will affect the signal only during a short interval. FHSS offers four main advantages over a fixed-frequency transmission: # FHSS signals are highly resistant to narrowband Interference (communication), interference because the signal hops to a different frequency band. # Signals are difficult to intercept if the frequency-hopping pattern is not known. # Jamming is ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] [Amazon] |
Exelis SINCGARS In HMMWV
''Exelis'' is a genus of moths in the family Geometridae erected by Achille Guenée in 1857. Species *''Exelis dicolus'' Rindge, 1952 *''Exelis mundaria'' Dyar, 1916 *''Exelis ophiurus'' Rindge, 1952 *''Exelis pyrolaria'' Guenee, 1857 References * Boarmiini {{Boarmiini-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] [Amazon] |
Exelis SINCGARS RT-1523C
''Exelis'' is a genus of moths in the family Geometridae erected by Achille Guenée in 1857. Species *''Exelis dicolus'' Rindge, 1952 *''Exelis mundaria'' Dyar, 1916 *''Exelis ophiurus'' Rindge, 1952 *''Exelis pyrolaria ''Exelis pyrolaria'', the fine-lined gray moth or plumose gray moth, is a species of moth in the family Geometridae. It is found in North America, where it has been recorded east of the Mississippi River and south of Illinois and the District of ...'' Guenee, 1857 References * Boarmiini {{Boarmiini-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] [Amazon] |
Exelis SINCGARS RT-1523F With SideHat®
''Exelis'' is a genus of moths in the family Geometridae erected by Achille Guenée Achille Guenée (sometimes M.A. Guenée; 1 January 1809 – 30 December 1880) was a French lawyer and entomologist. Biography Achille Guenée was born in Chartres and died in Châteaudun. He was educated in Chartres, where he showed a very ear ... in 1857. Species *'' Exelis dicolus'' Rindge, 1952 *'' Exelis mundaria'' Dyar, 1916 *'' Exelis ophiurus'' Rindge, 1952 *'' Exelis pyrolaria'' Guenee, 1857 References * Boarmiini {{Boarmiini-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] [Amazon] |
Exelis SINCGARS RT-1523G
''Exelis'' is a genus of moths in the family Geometridae erected by Achille Guenée in 1857. Species *''Exelis dicolus'' Rindge, 1952 *''Exelis mundaria'' Dyar, 1916 *''Exelis ophiurus'' Rindge, 1952 *''Exelis pyrolaria ''Exelis pyrolaria'', the fine-lined gray moth or plumose gray moth, is a species of moth in the family Geometridae. It is found in North America, where it has been recorded east of the Mississippi River and south of Illinois and the District of ...'' Guenee, 1857 References * Boarmiini {{Boarmiini-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] [Amazon] |
Wideband
In communications, a system is wideband when the message bandwidth significantly exceeds the coherence bandwidth of the channel. Some communication links have such a high data rate that they are forced to use a wide bandwidth; other links may have relatively low data rates, but deliberately use a wider bandwidth than "necessary" for that data rate in order to gain other advantages; see '' spread spectrum''. A wideband antenna is one with approximately or exactly the same operating characteristics over a very wide Passband. It is distinguished from broadband antennas, where the passband is large, but the antenna gain and/or radiation pattern need not stay the same over the passband. The term Wideband Audio or (also termed HD Voice or Wideband Voice) denotes a telephony using a wideband codec, which uses a greater frequency range of the audio spectrum than conventional voiceband telephone calls, resulting in a clearer sound. Wideband in this context is usually consid ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] [Amazon] |
RT-1523-VRC-89
The RT-15 was a mobile theatre ballistic missile deployed by the Soviet Union during the Cold War. It was assigned the NATO reporting name SS-14 Scamp (alternately the SS-14 Scapegoat) and carried the GRAU index 8K96. The RT-15 was an early Soviet attempt to develop a road-mobile theatre ballistic missile. It was intended to be capable of being launched from both sea and ground sites and had a maximum range of 2000–2500 km. The weapon's 'reaction time' in the normal readiness condition after its arrival at the launch site would have been 20 to 30 minutes and the 'holding time' at peak readiness (with a time of two to ten minutes before the missile could be launched) would be about a day. History RT-15 was developed by the S. P. Korolev design bureau (OKB-1) on the basis of the second and third stages of the RT-2 ICBM. The missile was carried on a T-10 heavy tank chassis in a sealed container with a striking resemblance to the US Atlas D ICBM. After missile erection, the ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] [Amazon] |
Exelis Inc
''Exelis'' is a genus of moths in the family Geometridae erected by Achille Guenée Achille Guenée (sometimes M.A. Guenée; 1 January 1809 – 30 December 1880) was a French lawyer and entomologist. Biography Achille Guenée was born in Chartres and died in Châteaudun. He was educated in Chartres, where he showed a very ear ... in 1857. Species *'' Exelis dicolus'' Rindge, 1952 *'' Exelis mundaria'' Dyar, 1916 *'' Exelis ophiurus'' Rindge, 1952 *'' Exelis pyrolaria'' Guenee, 1857 References * Boarmiini {{Boarmiini-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] [Amazon] |
