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Combat-net Radio
In telecommunications, a combat-net radio (CNR) is a radio operating in a network that (a) provides a half-duplex circuit and (b) uses either a single radio frequency or a discrete set of radio frequencies when in a frequency hopping mode. CNRs are primarily used for push-to-talk-operated radio nets for command and control of combat, combat support, and combat service support operations among military ground, sea, and air forces. In the United States, two military standards govern the use of combat net radios and the host applications that communicate over the network: MIL-STD-188-220 and MIL-STD-2045-47001. In addition to IETF RFCs governing UDP, TCP, and IPv4/IPv6, all seven layers of the OSI communications architecture are addressed. MIL-STD-2045-47001 covers layer 7 ( application), while MIL-STD-188-220 covers layers 1 through 3 ( physical, data link, and network). Examples * AN/PRC-152 by Harris Corporation * AN/PRC-117 * AN/PRC-77 *SINCGARS * AN/PRC-148 MBITR *PR4G by ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Telecommunications
Telecommunication, often used in its plural form or abbreviated as telecom, is the transmission of information over a distance using electronic means, typically through cables, radio waves, or other communication technologies. These means of transmission may be divided into communication channels for multiplexing, allowing for a single medium to transmit several concurrent Session (computer science), communication sessions. Long-distance technologies invented during the 20th and 21st centuries generally use electric power, and include the electrical telegraph, telegraph, telephone, television, and radio. Early telecommunication networks used metal wires as the medium for transmitting signals. These networks were used for telegraphy and telephony for many decades. In the first decade of the 20th century, a revolution in wireless communication began with breakthroughs including those made in radio communications by Guglielmo Marconi, who won the 1909 Nobel Prize in Physics. Othe ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Physical Layer
In the seven-layer OSI model of computer networking, the physical layer or layer 1 is the first and lowest layer: the layer most closely associated with the physical connection between devices. The physical layer provides an electrical, mechanical, and procedural interface to the transmission medium. The shapes and properties of the electrical connectors, the frequencies to transmit on, the line code to use and similar low-level parameters, are specified by the physical layer. At the electrical layer, the physical layer is commonly implemented in a dedicated PHY chip or, in electronic design automation (EDA), by a design block. In mobile computing, the MIPI Alliance *-PHY family of interconnect protocols are widely used. Role The physical layer defines the means of transmitting a stream of raw bits over a physical data link connecting network nodes. The bitstream may be grouped into code words or symbols and converted to a physical signal that is transmitted over ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Joint Electronics Type Designation System
The Joint Electronics Type Designation System (JETDS), which was previously known as the Joint Army-Navy Nomenclature System (AN System. JAN) and the Joint Communications-Electronics Nomenclature System, is a method developed by the U.S. War Department during World War II for assigning an unclassified designator to electronic equipment. In 1957, the JETDS was formalized in MIL-STD-196. Computer software and commercial unmodified electronics for which the manufacturer maintains design control are not covered. Applicability Electronic material, from a military point of view, generally includes those electronic devices employed in data processing, detection and tracking (underwater, sea, land-based, air and space), recognition and identification, communications, aids to navigation, weapons control and evaluation, flight control, and electronics countermeasures. The JETDS applies to equipment throughout the DoD and select NATO allies today. Nomenclature is assigned to: * Electronic ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
JTRS
The Joint Tactical Radio System (JTRS) aimed to replace existing radios in the American military with a single set of software-defined radios that could have new frequencies and modes (“waveforms”) added via upload, instead of requiring multiple radio types in ground vehicles, and using circuit board swaps in order to upgrade. JTRS has seen cost overruns and full program restructurings, along with cancellation of some parts of the program. JTRS HMS (Handheld, Manpack & Small Form-Fit (SFF)) radios are jointly developed and manufactured by Thales and General Dynamics Mission Systems. These software-defined radios are designed as successors to the JTRS-compatible CSCHR (Consolidated Single Channel Handheld Radios, ie. AN/PRC-148 and AN/PRC-152), securely transmitting voice and data simultaneously using Type 2 cryptography and the new Soldier Radio Waveform. The Army announced in June 2015 a Request for Proposal (RFP) for full-rate production of the HMS program. Goal was se ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Clansman (military Radio)
Clansman, clansmen, Klansman, klansmen, or variations, may refer to: People * Clansman, a member of a clan ** especially, a member of a Scottish clan Literature * '' The Clansman'' (1905), a pro-Ku Klux Klan novel and play by Thomas F. Dixon, Jr. * '' Klansmen: Guardians of Liberty'', 1926 political manifesto by Alma Bridwell White * ''The Clansman'' (1959 novel), a historical novel written by Nigel Tranter, see Historical novels by Nigel Tranter set after 1603 * ''The Klansman'', 1965 novel by William Bradford Huie Film * ''The Birth of a Nation'', 1915 American drama film also called ''The Clansman'', by D. W. Griffith * '' The Klansman'', 1974 American drama film based on the 1965 novel Other entertainment * "The Clansman", a song by Iron Maiden from the 1998 album '' Virtual XI'' * "Klansmen" (''The Professionals''), an episode of the television series Transportation * ''The Clansman'', a train service between London and the Highlands, replaced by '' Highland Chieftain'' * ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Thales Communications
Thales Defense & Security, Inc. (formerly Thales Communications Inc.) is a subsidiary of the Thales Group, is a leading manufacturer of tactical communications equipment, including the AN/PRC-148 MBITR and JEM (JTRS Enhanced Module), currently fielded with the US Army and NATO forces worldwide. It is currently involved in the Joint Tactical Radio System The Joint Tactical Radio System (JTRS) aimed to replace existing radios in the American military with a single set of software-defined radios that could have new frequencies and modes (“waveforms”) added via upload, instead of requiring mu ... program, fielding its JEM MBITR radio. Sources Defense companies of the United States Telecommunications companies of the United States Thales Group divisions and subsidiaries {{DEFAULTSORT:Thales Defense and Security ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
AN/PRC-148
The AN/PRC-148 Multiband Inter/Intra Team Radio (MBITR) is the most widely fielded handheld multiband, tactical software-defined radio, used by NATO forces around the world. The radio is built by Thales Communications, a subsidiary of the France-based Thales Group. The MBITR was developed by the United States Special Operations Command (USSOCOM) and Thales Communications in the 1990s and went into production in 1994, to address the need for a secure multiband handheld radio.Thales PRC-148 JEM: The First Tactically Deployed JTRS Radio? Defense Industry Daily It has been more widely deployed with Stryker Combat Teams and with troops deploying to Iraq and Afghanistan. As of August 2007, 100,000 MBITRs have been fielded, ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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] |
AN/PRC-77 Portable Transceiver
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/PRC-117
The AN/PRC-117 translates to "Army/Navy, Portable, Radio, Communication". It is a man-portable, tactical software-defined combat-net radio, manufactured by Harris Corporation (now L3Harris), in two different versions: * AN/PRC-117F Falcon II MBMMR (Multiband Multimission Manpack Radio), also referred to as AN/PRC-117F-MP, covering the 30-512 MHz frequency range, provided without an internal GPS (optionally an external commercial GPS can be connected, or a GPS SAASM as a PLGR (Precision Lightweight GPS Receiver) or a DAGR (Defense Advanced GPS Receiver); * AN/PRC-117G Falcon III MNMR (Multiband Networking Manpack Radio), also referred to as AN/PRC-117G-MP, covering the 30-2000 MHz frequency range, and provided with internal SAASM GPS (optionally an external commercial GPS can be connected). Both radios have NSA certification for the transmission of voice and data traffic up to the Top Secret level. In accordance with the Joint Electronics Type Designation System (J ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Harris Corporation
Harris Corporation was an American technology company, defense contractor, and information technology service (economics), services provider that produced wireless equipment, tactical radios, electronic systems, night vision device, night vision equipment and both terrestrial and spaceborne antenna (radio), antennas for use in the government, defense, emergency service, and commercial sectors. They specialized in surveillance solutions, microwave weaponry, and electronic warfare. In 2019, it merged with L3 Technologies to form L3Harris Technologies. Headquartered in Melbourne, Florida, the company had approximately $7 billion of annual revenue. It was the largest private-sector employer in Brevard County, Florida (approximately 6,000). From 1988 to 1999, the company was the parent of Intersil, under the name Harris Semiconductor. In 2016, Harris was named one of the top hundred federal contractors by ''Defense News''. In January 2015, Wired Magazine, ''Wired'' Magazine ranked ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
