Wi-Fi uses radio waves to transmit data between devices. These waves travel at specific frequencies measured in gigahertz (GHz). Higher frequencies carry more data but travel shorter distances and penetrate walls poorly. Lower frequencies travel farther and pass through obstacles better but offer less bandwidth. You will encounter three main frequency bands: GHz, GHz, and GHz. Each band has different characteristics that affect your network design choices.
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$ curl repovive.com/roadmaps/network-design/wireless-networking/radio-frequency-basics
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