Advanced Extremely High Frequency

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-priority military ground, sea and air assets.

Advanced Extremely High Frequency
Artist's impression of an AEHF satellite
ManufacturerLockheed Martin
Northrop Grumman
Country of originUnited States
OperatorUnited States Space Force
ApplicationsMilitary communications
Specifications
BusA2100M
Launch mass6,168 kg (13,598 lb)
RegimeGeosynchronous orbit
Design life14 years (planned)
Dimensions
Production
StatusOperational
Active
On order0
Built6
Launched6
Operational5
Maiden launch14 August 2010 (USA-214)
Last launch26 March 2020 (USA-298)
This article is issued from Wikipedia. The text is licensed under Creative Commons - Attribution - Sharealike. Additional terms may apply for the media files.