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Chapter 1. Wireless Networking Fundamentals > Understanding Radio Waves

1.2. Understanding Radio Waves

Most of the wireless technologies mentioned in the last section make use of radio waves. Wi-Fi, GPRS, GPS, and Bluetooth all utilize radio waves to transmit signals.

1.2.1. Radio Wave Basics

Put simply, a radio wave is an electromagnetic wave. It can propagate through a vacuum, air, liquid, or even solid objects. It can be depicted mathematically as a sinusoidal curve as shown in Figure 1-5.


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