Applications of Communications Satellite
Advances in satellite technology have given rise to a healthy satellite services sector that provides various services to broadcasters, Internet service providers (ISPs), governments, the military, and other sectors. There are three types of communication services that satellites provide: telecommunications, broadcasting, and data communications. Telecommunication services include telephone calls and services provided to telephone companies, as well as wireless, mobile, and cellular network providers.
Broadcasting services include radio and television delivered directly to the consumer and mobile broadcasting services. DTH, or satellite television, services (such as the DirecTV and DISH Network services in the United States) are received directly by households. Cable and network programming is delivered to local stations and affiliates largely via satellite. Satellites also play an important role in delivering programming to cell phones and other mobile devices, such as personal digital assistants and laptops.
Today telecommunications satellites are part of our daily lives. Many everyday activities rely on telecommunication satellites that are in orbit, almost 36 000 kilometers above our heads.
Did you know that:
Advances in satellite technology have given rise to a healthy satellite services sector that provides various services to broadcasters, Internet service providers (ISPs), governments, the military, and other sectors. There are three types of communication services that satellites provide: telecommunications, broadcasting, and data communications. Telecommunication services include telephone calls and services provided to telephone companies, as well as wireless, mobile, and cellular network providers.
Broadcasting services include radio and television delivered directly to the consumer and mobile broadcasting services. DTH, or satellite television, services (such as the DirecTV and DISH Network services in the United States) are received directly by households. Cable and network programming is delivered to local stations and affiliates largely via satellite. Satellites also play an important role in delivering programming to cell phones and other mobile devices, such as personal digital assistants and laptops.
Today telecommunications satellites are part of our daily lives. Many everyday activities rely on telecommunication satellites that are in orbit, almost 36 000 kilometers above our heads.
Did you know that:
- When you listen to the radio, it is very likely that the signal you are receiving has been distributed from the central studios by satellite?
- Many newspapers and magazines are produced locally but printed centrally? The content of the paper is sent to the printing plants using satellite links.
- Even when a news or sports event shown on television is taking place just a few kilometers away from the studios, it has probably been transmitted via satellite?
- Most news agencies use satellites to distribute text, audio and video to their affiliates?
- In many countries, access to the Internet is by satellite communication? Internet service providers often link their servers to the core of the Internet network by satellite. With the emergence of very powerful broadband satellites, users – equipped with their own broadband interactive satellite terminals – will get access to the Internet regardless of their distance from the nearest terrestrial node.
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Satellite based defense system.
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Various comsat applications.
References:
- Satellite applications [online] Available: http://global.britannica.com/EBchecked/topic/524891/satellite-communication/288218/Satellite-applications
- Telecommunication satellite [online] Available: http://www.esa.int/Our_Activities/Telecommunications_Integrated_Applications/Telecommunications_satellites