Where are radio frequencies in the electromagnetic spectrum?
Radio frequencies are a subset of the larger electromagnetic spectrum. Generally, the frequencies between 3 kHz and 300 GHz are referred to as the “radio frequency (RF) spectrum.” The diagram below identifies the smaller RF spectrum within the electromagnetic spectrum. Who owns the spectrum? The electromagnetic spectrum is a resource of each country around the globe. The governments of each country establish a system to manage, protect and regulate the use of the spectrum within their borders. Is anyone in charge of the spectrum? Yes and no. The International Telecommunication Union Radiocommunication Sector (ITU-R) is an organization within the United Nations System that establishes radio regulations. These are the foundation of radio frequency regulations in most countries including the United States. There are more than 190 member countries in the ITU; however, since the spectrum is a resource of each nation, governments are free to regulate their spectrum resources in their best in
