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Table Of Contents  CertiGuide to A+ (A+ 4 Real)
 9  Chapter 13: Basic Networking Terminology
      9  Wireless

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Asymmetrical Access
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Internet from Unstable Satellites
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Symmetrical Access

Today systems of bi-directional satellite access in Internet are getting increasing popularity. The advantages of the given kind of communication are indisputable - it is no specific equipment necessary, except for installation of a satellite dish, no wires, no dependence on local influences. It means a complete autonomy and independence. Plus to all it is real direct access to largest Internet - highways of the world. In a basis principle of work there is a split of the system in two - system of reception and system of transfer of the information. Taking into account natural asymmetry of Internet’s flow, the reception complete set provides speeds up to 8 Mbps, and transmitting - 64/128/256 Kbps.

An obstacle for universal introduction of these systems price, they are expensive so estimated cost of the minimal complete set of the equipment - about $ 1500.


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Asymmetrical Access
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Internet from Unstable Satellites
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