Wi-Fi Channels, Frequencies, Bands & Bandwidths

Understanding Wi-Fi bands, channels and bandwidths can enhance the performance of professional Wireless LANS as well as home local area networks with a router & Wi-Fi repeaters, etc.

WiFi IEEE 802.11 Includes:
Wi-Fi IEEE 802.11 introduction     Standards     Wi-Fi Alliance generations     Security     How to stay safe on public Wi-Fi     Wi-Fi Bands     Router location & coverage     How to get best Wi-Fi performance     How to buy the best Wi-Fi router     Wi-Fi boosters, range extenders & repeaters     Wi-Fi wired & powerline extender    

Wi-Fi IEEE 802.11 is used by very many devices from smartphones to laptops and tablets to remote sensors, actuators televisions and many more. It is used as the main wireless communications bearer in wireless LANs as well as for small home WLANs as well.

There are several frequency bands within the radio spectrum that are used for the Wi-Fi and within these there are many channels that have been designated with numbers so they can be identified.

Although many Wi-Fi channels and Wi-Fi bands are normally selected automatically by home Wi-FI routers, for larger wireless LANs and systems it is often necessary to plan the frequencies used. Using many Wi-Fi access points around a large building or area, frequency planning is essential so that the best performance can be obtained from the wireless LAN.