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 ...