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t. e. A communications satellite is an artificial satellite that relays and amplifies radio telecommunication signals via a transponder; it creates a communication channel between a source transmitter and a receiver at different locations on Earth. Communications satellites are used for television, telephone, radio, internet, and military ...
Laser communication in space is the use of free-space optical communication in outer space. Communication may be fully in space (an inter-satellite laser link) or in a ground-to-satellite or satellite-to-ground application. The main advantage of using laser communications over radio waves is increased bandwidth, enabling the transfer of more ...
Status. Active since 2019 ; 5 years ago(2019) Starlink is a satellite internet constellation operated by Starlink Services, LLC, a wholly owned subsidiary of American aerospace company SpaceX, [ 3 ] providing coverage to over 100 countries and territories. It also aims to provide global mobile broadband.
First communications satellite in geostationary orbit. First Olympic broadcast to international audiences. First tandem satellite broadcast (with Relay 1) August 19, 1964. United States. OSCAR-III. First amateur radio communications satellite (relay/transponder); first OSCAR powered by solar cells. March 9, 1965.
High-throughput satellite (HTS) is a communications satellite that provides more throughput than a classic FSS satellite (at least twice, though usually by a factor of 20 or more [1]) for the same amount of allocated orbital spectrum, thus significantly reducing cost-per-bit. [2] ViaSat-1 and EchoStar XVII (also known as Jupiter-1 [3]) do ...
A ground segment consists of all the ground-based elements of a space system used by operators and support personnel, as opposed to the space segment and user segment. [ 1 ][ 2 ]: 1 The ground segment enables management of a spacecraft, and distribution of payload data and telemetry among interested parties on the ground.
A high-altitude platform station (HAPS, which can also mean high-altitude pseudo-satellite or high-altitude platform systems), also known as atmospheric satellite, is a long endurance, high altitude aircraft able to offer observation or communication services similarly to artificial satellites. Mostly unmanned aerial vehicles (UAVs), they ...
The concept of using orbital satellites to relay communications predated space travel, first being advanced by Arthur C. Clarke in 1945. Experiments using the moon as a passive reflecting way station for messages began as early as 1946. [ 3 ] With the launching of Sputnik 1, Earth's first artificial satellite, in 1957, interest quickly ...
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