The C band is a designation by the Institute of Electrical and Electronics Engineers for a portion of the electromagnetic spectrum in the microwave range of frequencies ranging from 4.0 to 8.0 gigaher
The C band is used by 5 GHz Wi-fi networks, for example to connect laptops (left) to the internet through a wireless router (right)
The back side of a C-Band satellite dish showing the pole, mount, motor, counterweight, and structure of the dish.