Mobility

Radios, Antennas and Other Wi-Fi Essentials

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Executive Summary

Wi-Fi (802.11) is an access technology that connects IP devices to a wired network using wireless radios. The client devices have radios (wireless adapters) that connect to Access Point (AP) radios. These radios transmit over unlicensed radio spectrum; either the 2.4 GHz or 5 GHz bands. So how does an IT manager determine the best Wi-Fi solution for their network? While most IT engineers are very familiar with IP networking, they aren't always experts in radio technology - a different beast altogether. Until the commercialization of Wi-Fi, most IP networks did not utilize radio-based technology. Now radios are crammed into virtually every type of device imaginable.

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