telecommunication satellites![click to hear](/images/speaker.jpg)
Space vehicles placed into geostationary orbit at an altitude of 22,000 mi to receive and broadcast long-distance signals in the form of radio waves.
Eutelsat ![click to hear](/images/speaker.jpg)
Family of European satellites launched 20 years ago to transmit television, telephone and business communications signals.
transmission dish ![click to hear](/images/speaker.jpg)
Antenna allowing the satellite to broadcast radio waves to an Earth station.
service module ![click to hear](/images/speaker.jpg)
Section of the satellite housing the command and control systems.
propulsion module ![click to hear](/images/speaker.jpg)
Section of the satellite housing the rocket engine, which maintains the position and orientation of the satellite in its orbit.
solar array ![click to hear](/images/speaker.jpg)
Power supply device that converts solar energy into immediately usable electrical energy.
solar reflectors ![click to hear](/images/speaker.jpg)
Protective panels used to deflect the Sun’s rays and lower the heat reaching the satellite equipment so it will not be damaged.
communication module ![click to hear](/images/speaker.jpg)
Part of the satellite that receives and amplifies signals captured by the dish and then relays them to the transmission dish.
transceiving dish ![click to hear](/images/speaker.jpg)
Antenna allowing a satellite to capture radio waves emitted from Earth and to redirect them to ground stations.
Anik ![click to hear](/images/speaker.jpg)
Family of Canadian satellites. Anik A1, launched in 1972, was one of the first national telecommunication satellites.
Intelsat ![click to hear](/images/speaker.jpg)
First network of international telecommunication satellites; it was set up in 1965 to ensure exchanges of telephone and television signals from one end of the globe to the other.