chapter  10
12 Pages

Wi-Fi and the Spectrum Commons

It is now becoming almost more important for cafes to offer free Wi-Fi than coffee. This is because for many end-users, Wi-Fi is the Internet. But Wi-Fi really is only a family of technologies that uses a small part of the radio spectrum, typically just 83 MHz in the 2.4 GHz band and around 400 MHz in the 5 GHz band.