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Single Channel Ground and Airborne Radio System (SINCGARS) is a Combat Net Radio (CNR) currently used by U.S. and allied military forces. The radios, which handle voice and data communications, are designed to be reliable, secure, and easily maintained. Vehicle-mount, backpack, airborne, and handheld form factors are available. SINCGARS uses 25 kHz channels in the very high frequency (VHF) FM band, from 30 to 87.975 Megahertz (MHz). It has single-frequency and frequency hopping modes. The frequency-hopping mode hops 111 times a second. The SINCGARS family has mostly 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). Over 570,000 radios have been purchased. There have been several system improvement programs, including the Integrated Communications Security (ICOM) models, which have provided integrated voice and data encryption, the Special Improvement Program (SIP) models, which add additional data modes, and the advanced SIP (ASIP) models, which are less than half the size and weight of ICOM and SIP models and provided enhanced FEC (forward error correction) data modes, RS-232 asynchronous data, Packet Data formats, and direct interfacing to Precision Lightweight GPS Receiver (PLGR) devices providing radio level situational awareness capability. In 1992, the U.S. Air Force awarded a contract to replace the AN/ARC-188 for communications between Air Force aircraft and Army units. ==Timeline== *November 1983: ITT Corporation (ITT) wins the contract for the first type of radio, for ground troops. *May 1985: ITT wins the contract for the airborne SINCGARS. *July 1988: General Dynamics wins a second-source contract for the ground radio. *April 1989: ITT reaches "Milestone IIIB": full-rate production. *December 1990: 1st Division is equipped. *December 1991: General Dynamics wins the "Option 1 Award" for the ground radio. *March 1992: ITT wins a "Ground and Airborne" award. *July 1992: Magnavox Electronics Systems Company develops the airborne SINCGARS AN/ARC-222 for the Air Force *August 1993: General Dynamics achieves full rate production. *April 1994: ITT and General Dynamics compete for the ground radio. *May 1994: ITT wins a sole-source contract for the airborne radio. *1997: ITT became the sole source supplier of the new half-size RT-1523E radio to the US Army. *2006: The RT-1523F/SideHat configuration provides a 2-channel capability. *July 2009: ITT wins RT-1523G platform development, $363 Million Dollar Contract. Partnered with Thales Communications Inc. *2012: Capability Set 14 to provide Universal Network Situational Awareness to help prevent air-to-ground friendly fire incidents.〔Thompson, Edric. ("Radio-based combat ID -- for free." ) ''RDECOM'', 2012-10-10. Retrieved 2015-10-12 – Via globalsecurity.org〕 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「SINCGARS」の詳細全文を読む スポンサード リンク
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