Radio spectrum - Wikipedia
WEBThe radio spectrum is the part of the electromagnetic spectrum with frequencies from 3 Hz to 3,000 GHz (3 THz). Electromagnetic waves in this frequency range, called radio waves, are widely used in modern technology, particularly in telecommunication.
What is Radio Spectrum? | US Department of Transportation
WEBSep 21, 2017 · Radio spectrum is the part of the electromagnetic spectrum ranging from 1 Hz to 3000 GHz (3 THz). Electromagnetic waves in this frequency range, called radio waves, have become widely used in modern technology, particularly in telecommunication.
United States Frequency Allocation Chart
WEBUnited States Frequency Allocation Chart. A printed version of the most recent version of the United States Frequency Allocations: The Radio Spectrum Chart (published in January 2016 from data as of September 2015) is available from the U. S. Government Publishing Office at a cost of $6.00 per copy.
How the Radio Spectrum Works - HowStuffWorks
WEBApr 10, 2023 · AM radio, FM radio, CB radio... These are all different chunks of the radio spectrum. Find out about the thousands of different uses for radio waves!
Radio Spectrum Allocation - Federal Communications Commission
WEBThe radio spectrum is the radio frequency (RF) portion of the electromagnetic spectrum. In the United States, regulatory responsibility for the radio spectrum is divided between the Federal Communications Commission (FCC) and the National Telecommunications and Information Administration (NTIA).
Radio Spectrum Management and Allocations - RadioReference
WEBJan 5, 2023 · In the United States the radio spectrum is managed by various agencies. See Basic Elements of Spectrum Management. The Federal Communications Commission (FCC) assigns frequencies and issues licenses to non-federal radio spectrum users.
The beautiful complexity of the US radio spectrum
WEBAug 23, 2023 · The complete frequency spectrum. The US government lays claim to a large chunk of spectrum for military use, communications, and transportation. FM radio operates between 88 and 108.0 MHz, and AM...
Radio-frequency spectrum | communications | Britannica
WEBIn telecommunications media: The radio-frequency spectrum. Before 1930 the radio spectrum above 30 megahertz was virtually empty of man-made signals. Today, civilian radio signals populate the radio spectrum in eight frequency bands, ranging from very low frequency (VLF), starting at 3 kilohertz, and extending to …
ITU-R: Managing the radio-frequency spectrum for the world
WEBEstablishment and updating of worldwide recommendations, reports, and handbooks for the most efficient use of the radio-frequency spectrum and satellite orbits, including best practices on national spectrum management activities
Radio wave | Examples, Uses, Facts, & Range | Britannica
WEBJul 26, 2024 · radio wave, wave from the portion of the electromagnetic spectrum at lower frequencies than microwaves. The wavelengths of radio waves range from thousands of metres to 30 cm. These correspond to frequencies as low as 3 Hz and as high as 1 gigahertz (10 9 Hz).