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Wireless signal propagation

Wireless signal propagation

课程: ISC2 Certified Information Systems Security Professional (CISSP) (2024) Cert Prep

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Wireless signal propagation

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- [Narrator] The radio waves that carry wireless network traffic can be affected by many different characteristics of the area where they're operating. Building materials, antenna placement, power levels, and many other characteristics can alter the flow or propagation of wireless signals. There are many different types of wireless antennas that you can use. While some organizations use the simple antennas built into their wireless access points, there are other options available. The basic antennas used with wireless access points are known as omnidirectional antennas. They transmit radio waves equally in every direction using a donut shaped pattern. The short, stubby pole-like antennas attached to some wireless access points are known as rubber ducks, and they're examples of omnidirectional antennas. In some cases, network administrators may wish to point a wireless signal in a specific direction, such as when they're creating a point-to-point network between two buildings. This…

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