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Deploying License-Free Wireless Wide-Area Networks by Jack Unger

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Working with Wireless Power

  • Working with wireless WANs requires knowing how to work with wireless power. Following are facts about wireless power:

  • Power can be either increased (a power gain) or decreased (a power loss).

  • Power can be relative, for example, twice as much power or 1/2 as much power or Power can be absolute, for example, 1 watt or 4 watts.

  • Both absolute and relative power are always referenced to initial power level, either to a relative power level or to an absolute power level.

  • Wireless WAN power levels become very small, very quickly after leaving a transmitting antenna.

  • Wireless WAN power does not decrease linearly with distance; it decreases inversely as the square of the distance increases. Here are some examples:

    - If we double ...

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