Wireless Interfaces
When a cable is not available or just impractical, a wireless link can serve as a cable replacement for digital data transmission. A wireless link is a free space path between the source transmitter and the destination receiver. The data is serial and modulates a carrier that is converted into an electromagnetic or radio wave by the antenna. There are multiple standards for wireless interfaces, most created for specific applications. This section of the book summarizes the most popular wireless technologies focusing on the factors that are most important in selecting or otherwise working with wireless.
Frequency
Frequency of operation defines where in the electromagnetic spectrum the signal is located. The ...
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