About: Advanced Extremely High Frequency

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Advanced Extremely High Frequency (AEHF) is a constellation of communications satellites operated by the United States Space Force. They are used to relay secure communications for the United States Armed Forces, the British Armed Forces, the Canadian Armed Forces, the Netherlands Armed Forces and the Australian Defence Force. The system consists of six satellites in geostationary orbits. The final satellite was launched on 26 March 2020. AEHF is backward compatible with, and replaces, the older Milstar system and will operate at 44 GHz uplink (extremely high frequency (EHF) band) and 20 GHz downlink (super high frequency (SHF) band). The AEHF system is a joint service communications system that provides survivable, global, secure, protected, and jam-resistant communications for high-prior

Attributes	Values
rdf:type	yago:WikicatCommunicationsSatellites yago:WikicatMilitarySatellites yago:WikicatUSASatellites yago:Artifact100021939 yago:CommunicationsSatellite103077741 yago:Equipment103294048 yago:Instrumentality103575240 yago:Object100002684 yago:PhysicalEntity100001930 television show yago:Satellite104137444 yago:Whole100003553
rdfs:label	Advanced Extremely High Frequency (en) Advanced Extremely High Frequency System (de) Advanced Extremely High Frequency (fr) Advanced Extremely High Frequency (it) 先進EHF通信衛星 (ja) Advanced Extremely High Frequency (ru) 先进极高频通信卫星 (zh)
rdfs:comment	Das Advanced Extremely High Frequency System (AEHF) ist ein gemeinsames Satellitenkommunikationssystem der US-amerikanischen Streitkräfte für sichere, bandbreitenbeständige, weltweite Kommunikationen und dient zur Sicherung dieser in Krisen- und Kriegszeiten. Es soll das vorhandene Milstar-System zunächst ergänzen und schließlich ersetzen. (de) AEHF è una Costellazione satellitare americana per le comunicazioni militari. (it) 先進EHF通信衛星AEHF(Advanced Extremely High Frequency)衛星はアメリカ空軍が整備を進めている新型の軍用通信衛星システムである。 (ja) 先進極高頻通信衛星(AEHF/Advanced Extremely High Frequency)，是美國太空部隊(United States Space Force)操作的一系列安全通信衛星, 它們用於美國武裝部隊，英國武裝部隊，加拿大武裝部隊，荷蘭皇家武裝部隊和澳大利亞國防軍。該系統將由地球靜止軌道上的六顆衛星組成。最終衛星于2020年3月26日發射升空。AEHF向後兼容並將取代舊的Milstar系統，並將在44 GHz上行鏈路（EHF頻段）和20 GHz下行鏈路（SHF頻段）上運行。 AEHF通信系統，將為高度優先的地面軍事，海洋軍事和空中軍事提供可長存的，全球的，安全的，受保護的和抗干擾的通信。 (zh) Advanced Extremely High Frequency (AEHF) is a constellation of communications satellites operated by the United States Space Force. They are used to relay secure communications for the United States Armed Forces, the British Armed Forces, the Canadian Armed Forces, the Netherlands Armed Forces and the Australian Defence Force. The system consists of six satellites in geostationary orbits. The final satellite was launched on 26 March 2020. AEHF is backward compatible with, and replaces, the older Milstar system and will operate at 44 GHz uplink (extremely high frequency (EHF) band) and 20 GHz downlink (super high frequency (SHF) band). The AEHF system is a joint service communications system that provides survivable, global, secure, protected, and jam-resistant communications for high-prior (en) L’Advanced Extremely High Frequency (AEHF) est une constellation de satellites de télécommunications militaires exploitée à l'origine par le Air Force Space Command puis depuis 2020 par son successeur, la United States Space Force. Ils servent à relayer des communications sécurisées des Forces armées des États-Unis pour répondre à la fois à des besoins tactiques et stratégiques durant des conflits y compris en cas de guerre nucléaire. Le segment spatial opérationnel repose sur la présence de six satellites en orbite géostationnaire couvrant l'ensemble du globe. Ces satellites de plus de six tonnes au lancement disposent de systèmes de communication à très haut débit (SHF et EHF). La constellation AEHF, qui remplace la série des Milstar, a commencé à être déployée en 2010 et assure une couv (fr) Advanced Extremely High Frequency (AEHF) — группировка спутников защищенной связи, которая обеспечивают защищенную и устойчивую к помехам связь представителей американского командования с развернутыми воинскими частями и подразделениями. По оценкам специалистов, стоимость AEHF-4 составляет около $1,8 млрд. Использовать возможности спутника смогут также союзники США, в том числе Великобритания, Канада и Нидерланды. Ожидается, что всего будет произведено семь аппаратов этого типа. (ru)
name	Advanced Extremely High Frequency (en)
foaf:depiction
dcterms:subject	Military communications Military equipment introduced in the 2010s Telecommunications equipment Equipment of the United States Space Force Satellites using the A2100 bus Communications satellite constellations Military satellites Military space program of the United States
Wikipage page ID	13236983 (xsd:integer)
Wikipage revision ID	1123339920 (xsd:integer)
Link from a Wikipage to another Wikipage	Canadian Armed Forces Cape Canaveral Space Force Station Cape Canaveral Space Launch Complex 41 Schriever Space Force Base Electronic warfare National Security Space Launch Apsis Robert Gates United States United States Armed Forces United States Department of Defense United States Space Force Uplink Defense Satellite Communications System Radio jamming Signals intelligence Military communications Null (radio) Electrically powered spacecraft propulsion Geostationary orbit Geostationary transfer orbit Geosynchronous orbit Government Accountability Office Crosslinks Equator Traveling wave tube Lockheed Martin MILSTAR Communications satellite Hall-effect thruster B-2 Spirit Australian Defence Force British Armed Forces USA-214 USA-298 Gimbal Launch vehicle Liquid apogee engine Lockheed Martin A2100 4th Space Operations Squadron Military equipment introduced in the 2010s Telecommunications equipment Earth Extremely high frequency Northrop Grumman Geospatial intelligence Hertz Attitude control Atlas V Equipment of the United States Space Force Satellites using the A2100 bus Aerojet Rocketdyne Communications satellite constellations Military satellites Military space program of the United States Latitude Bit rate Super high frequency Space and Missile Systems Center Frequency-hopping spread spectrum Ground station Military communications

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