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- ***[[:Category:United States Metro Areas]] ............... [[:Category:United States|United States]]47 KB (4,714 words) - 13:21, 13 January 2018
- == United States == In the United States the radio [[spectrum]] is managed by various agencies. See [http://w10 KB (1,279 words) - 20:17, 5 January 2023
- Spectrum is the distribution of [[wavelength|wavelengths]] and [[frequency|frequencies]]. ...often refer to a [[bandwidth]] of spectrum as a "band". These "bands" are frequencies that exist in a continuous range and usually have a common characteristic w5 KB (582 words) - 12:16, 11 March 2016