An International Telecommunications Union (United Nations) international telecommunications standards-setting body, specializing in radio-spectrum usage.
International Telecommunications Union - Radio communications Bureau.
ITU Telecommunications Radio Sector.
International Telecommunication Union – Radiocommunication Sector
The ITU Radiocommunication Sector (ITU-R) is a standards body subcommittee of the International Telecommunication Union (ITU) relating to radio communication. Its role is to regulate the allocation of radio frequencies and so reduce the interference between radio stations in various countries. It also has responsibility for regulating orbital positions of satellites relating to radio communications.