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171.3°W TDRS-10 (J), GE 2 (174°W) United States NASA: 5 December 2002, Atlas IIA: 171.1°W TDRS-11: United States NASA: 31 January 2013, Atlas V 401: 169.5°W NSS-6: Lockheed Martin A2100AXS: Netherlands SES: Direct broadcasting, video distribution Asia: 17 December 2002 Ariane 44L: Ku-band satellite 167.6°W TDRS-5: United States NASA: 2 ...
How satellite internet works. Satellite Internet generally relies on three primary components: a satellite – historically in geostationary orbit (or GEO) but now increasingly in Low Earth orbit (LEO) or Medium Earth orbit MEO) [24] – a number of ground stations known as gateways that relay Internet data to and from the satellite via radio waves (), and further ground stations to serve each ...
F2 propagation (F2-skip) is the reflection of VHF signals off the F2 layer of the ionosphere. The phenomenon is rare compared to other forms of propagation (such as sporadic E propagation , or E-skip) but can reflect signals thousands of miles beyond their intended broadcast area, substantially farther than E-skip.
ViaSat-3 is a planned global constellation of three geostationary K a-band communications satellites, the first of which was launched in 2023. [1] Operated by Viasat, Inc., the satellites are intended to provide broadband connectivity with speeds of 100-plus megabits per second to homes, business and enterprise internet users, commercial, government and business aircraft, as well as government ...
Anik F2 has lost two of its four thrusters. As a result, continued operation uses significantly more fuel. Telesat has announced [23] that it is acquiring an in-orbit satellite to replace Anik F2. An FCC filing by Telesat has since revealed [24] that the company is buying AMC-11 from SES. Once the FCC has issued its permit, Telesat can take ...
IEEE 802.3 is a working group and a collection of standards defining the physical layer and data link layer's media access control (MAC) of wired Ethernet. The standards are produced by the working group of the Institute of Electrical and Electronics Engineers (IEEE).
[8] [9] Specifically, geosynchronous Earth orbit (GEO) may be a synonym for geosynchronous equatorial orbit, [10] or geostationary Earth orbit. [ 11 ] The first geosynchronous satellite was designed by Harold Rosen while he was working at Hughes Aircraft in 1959.
Geo-replication software is a network performance-enhancing technology that is designed to provide improved access to portal or intranet content for uses at the most remote parts of large organizations. It is based on the principle of storing complete replicas of portal content on local servers, and then keeping the content on those servers up ...