The 18 GHz ITU wireless band, as defined by the International Telecommunication Union (ITU) Radio Regulations ITU-R F.595, is a frequency band that falls within the range of 17.7 to 19.7 GHz. This band is categorised under the super high frequency (SHF) range of the radio spectrum, often used for high-capacity satellite communication, fixed and broadcasting services. The 18 GHz band is also utilised for radar systems and data transmission for wireless networks. The allocation of this band is subject to regional regulations and may vary across different countries.