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A spacecraft launched into orbit around the Earth or entering an orbit around some other body in the solar system. By signing up for this email, you are agreeing to news, offers, and information from Encyclopaedia Britannica.Be on the lookout for your Britannica newsletter to get trusted stories delivered right to your inbox.

Australia's AUSSAT-1 communications satellite being released in low Earth orbit from the payload bay of the U.S. space shuttle orbiter

Satellite communications is the use of satellite technology in the field of communications.

Virtually any topic for the virtual learner.

Virtually any topic for the virtual learner. This delay poses some problems for applications such as voice services and mobile Launching a satellite into space requires a very powerful multistage rocket to propel it into the right orbit.

Meaning \"planet that revolves about a larger one\" first attested 1660s, in reference to the moons of Jupiter, from Latin satellites, which was used in this s… A launch vehicle is a rocket that places a satellite into orbit. Satellite communication, in telecommunications, the use of artificial satellites to provide communication links between various points on Earth.

Constant radio links became possible in 1963.

They transmit radio, telephone, and television signals.

Our editors will review what you’ve submitted and determine whether to revise the article.Satellite communication has two main components: the ground segment, which consists of fixed or mobile transmission, reception, and

Satellite communications play a vital role in the global telecommunications system. Satellites are used for gathering information, intelligence, and for communication.

The frequency ranges or bands are identified by letters: (in order from low to high frequency) L-, S-,

Advances in miniaturization and digitalization have substantially increased the capacity of satellites over the years. Our editors will review what you’ve submitted and determine whether to revise the article.The main components of a satellite consist of the communications system, which includes the A satellite in orbit has to operate continuously over its entire life span. The Boeing 702 series of satellites, in contrast, can have more than 100 transponders, and with the use of digital compression A signal that is bounced off a GEO satellite takes approximately 0.22 second to travel at the speed of light from Earth to the satellite and back. Early Bird had just one transponder capable of sending just one TV channel. The services provided by satellite communications are … a device sent up into space to travel around the earth, used for collecting information or communicating by radio, television, etc.

a spy / weather …

1540s, \"follower or attendant of a superior person,\" from Middle French satellite (14c.

Your preference has been recorded Satellite orbits vary greatly, depending on the purpose of the satellite, and are classified in a number of ways.

A satellite also has batteries on board to provide power when the Sun is blocked by Satellites operate in extreme temperatures from −150 °C (−238 °F) to 150 °C (300 °F) and may be subject to Communication satellites range from microsatellites weighing less than 1 kg (2.2 pounds) to large satellites weighing over 6,500 kg (14,000 pounds).

Intelsat VI, a communications satellite, after being repaired, 1992.