ACS

Communication satellites are platforms launched into orbit around the Earth, in outer space, for the purpose of relaying and amplifying radio communication signals by using transponders.

Communication satellites provide Line-of-Sight (LOS) communication channels between transmitting and receiving stations positioned at considerable distances from one another around the globe.

Communication satellites support TV broadcasting, telephony and wireless communication, Internet and military applications. More than 2,000 active communication satellites are currently in orbit around the Earth, operated by business and government organizations.

Wireless communication generates electromagnetic waves that travel through the ether. The propagation characteristics of radio waves in certain frequency bands (usually the higher and more reliable frequency bands) require that a Line-of-Sight exist between the transmitting station and the receiving station so that the waves may propagate along a straight and unobstructed line, thereby ensuring uninterrupted transmission and reception. Naturally, the curvature of the Earth obstructs waves in these frequency bands when they are exchanged by stations between which no Line-of-Sight exists. As they are positioned in outer space, communication satellites can relay the transmitted signals under Line-of-Sight conditions: they can pick up a transmission from a station located on one side of the globe and relay that transmission to a station located on the other side of the globe, thereby providing unobstructed communication between geographically separated stations.

Communication satellites utilize various radio and microwave frequencies. To prevent signal interference, international organizations enforce rules and regulations that effectively allocate the frequency resources to the satellite users.

Our communication satellite services include stationary and mobile communication support for commercial TV broadcasters, DBS (Direct Broadcast Satellite TV) operators, government organizations and VSAT (Very Small Aperture Terminal) networks.