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Sunday, December 29, 2013

Satellite Networks, history and modern use.

INTRODUCTIONThere are approximately over 8,000 artificial butts orbiting around proboscis politic and about 2,500 of those are transmits. The public has expendd airs as, relay systems to meditate and receive planetary ho single-valued functions from everywhere on nation for over triad decades now. Now with technology advancements in gild and more contrasted areas requiring info connectivity, satellites are becoming more park in the world today. Satellite technology works by direct data to a satellite in orbit, which relays the note hazard to an reality set providing connectivity among users. The satellite networks are intentional to piddle virtually everywhere in the world including the remote areas that cod?t have land based lines. SATELLITESA satellite is an object that orbits in the sky and acts a repeater of a signal. starting signal a source from a station transmits a data signal to the satellite, and therefore the satellite receives, processes, and th en retransmits it to the receiving station. Satellites act as a medium between these earth stations for the signal being transmitted. When the satellite retransmits the received signal, any receiving station in the coverage area can assimilate the signal. This action is called multicasting, where the satellite sends a signal to multiple receivers. (Akyildiz)Satellite networks are designed for use with two different types of satellites, the Ku-band and the Ka-band.
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The Ku-band satellites are a 3-meter dish that is usually utilise for cable television bare and operates on frequencies ranging from 12 to 18GHz. The Ka-band satellites use a 1-meter dish and ar! e usually used for communication and operate on frequencies ranging from 18 to 40GHz. (Akyildiz)The satellites altitude to a higher place the surface has a direct impact on it?s performance and characteristics. maiden there is the low earth orbiting satellites, which use orbital altitudes of 750 to 1500 kilometers. This is the around common used satellite orbit... If you ask to get a full essay, order it on our website: OrderCustomPaper.com

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