Day 18

Wireless Technologies

Key Topics

Today we focus on reviewing wireless technologies, including 802.11 and cellular, as well as sources of interference.

Wi-Fi

The IEEE 802.11 WLAN standards define how radio frequencies (RFs) are used for wireless links. To avoid interference, different channels within an RF spectrum can be used.

RF Spectrum

The RF spectrum is shown in Figure 18-1. It includes all types of radio communications, including the 2.4 GHz and 5 GHz ...

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