C band (IEEE)

The C band is a designation by the Institute of Electrical and Electronics Engineers (IEEE) for a portion of the electromagnetic spectrum in the microwave range of frequencies ranging from 4.0 to 8.0 gigahertz (GHz).[1] However, the U.S. Federal Communications Commission C band proceeding and auction designated 3.7-4.2 GHz as C band.[2] The C band is used for many satellite communications transmissions, some Wi-Fi devices, some cordless telephones as well as some surveillance and weather radar systems.

IEEE C band
Frequency range
4 – 8 GHz
Wavelength range
7.5 – 3.75 cm
Related bands
C-band horn antennas of this type became widespread in the United States in the 1950s for terrestrial microwave relay networks.

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