Appendix A. Understanding Wi-Fi Signals

Learning more about wireless, such as the mechanics of Wi-Fi networks and challenges of radio frequency (RF) interference, can help you during the installation and administration of your Wi-Fi hotspot.

Comparing 802.11 Standards

As mentioned in Chapter 1, “The Basics of Wi-Fi Hotspots,” Wi-Fi networks use a technology that is specified within a standard called 802.11. The standard is basically written documents formed by members of the IEEE. These documents help manufacturers develop wireless products so that they will work together with wireless devices from every vendor that follows the standard.

802.11 comes in several versions that have different characteristics, as shown in Table A-1.

Table A-1. Comparison ...

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