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en.wikipedia.org/wiki/Communications_satellite

A communications satellite is an artificial satellite that relays and amplifies radio telecommunications 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 applications.

truththeory.com/2016/05/27/7-uses-for-communications-satellites

Now that you’ve learned a bit about how communications satellites work, check out their many important uses: Telephone On airplanes, satellites offer phone communications in-flight. They provide the main operative use for voice communication in rural areas, especially during a disaster where phone lines have been compromised. TV

www.ucsusa.org/resources/what-are-satellites-used

Satellites provide in-flight phone communications on airplanes, and are often the main conduit of voice communication for rural areas and areas where phone lines are damaged after a disaster. Satellites also provide the primary timing source for cell phones and pagers.

www.online-sciences.com/technology/what-are-the-importance-and-uses-of...

The satellites are used for many things such as the communication, the oceanography, the astronomy, the surveillance, They help many scientists get a perceptive view at all kinds of objects anywhere in the world.. The satellites send television signals directly to homes, They send the signals from a central station that generates programming to smaller stations that send the signals locally ...

history.nasa.gov/satcomhistory.html

Communications Satellites: Making the Global Village Possible . by David J. Whalen . In 500 years, when humankind looks back at the dawn of space travel, Apollo's landing on the Moon in 1969 may be the only event remembered.

www.britannica.com/technology/satellite-communication

Satellite communication, in telecommunications, the use of artificial satellites to provide communication links between various points on Earth.Satellite communications play a vital role in the global telecommunications system. Approximately 2,000 artificial satellites orbiting Earth relay analog and digital signals carrying voice, video, and data to and from one or many locations worldwide.

en.wikipedia.org/wiki/List_of_satellites_in_geosynchronous_orbit

This is a list of satellites in geosynchronous orbit. These satellites are commonly used for communication purposes, such as radio and television networks, back-haul, and direct broadcast. Traditional global navigation systems do not use geosynchronous satellites, but some SBAS navigation satellites do.

www.cse.wustl.edu/~jain/cis788-97/ftp/satellite_nets/index.html

Various Uses of Satellite Communications. ... Systems such as the Digital Broadcast Satellites used for television signal distribution would become inordinately expensive if they had to make use of ARR, since the home based receiver would now need to be a transmitter, and the 18 inch dish would be inadequate for the requirements of transmitting ...

www.physics-and-radio-electronics.com/satellite-communication/typesofsatellitesbasedon...

Hence, in order to transmit the information or signal over long distances, a single satellite or multiple satellites are used to redirect the signals. Types of communication satellites . Communication satellites are of two types: passive satellites and active satellites. Passive satellites

www.britannica.com/technology/satellite-communication/Satellite-applications

Satellite applications. 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.