15_16_86 - ALLOCATION OF FREQUENCIES IN THE RADIO SPECTRUM...

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ALLOCATION OF FREQUENCIES IN THE RADIO SPECTRUM In the United States the National Telecommunications and Information Administration (NTIA) has responsibility for assign- ing each portion of the radio spectrum (9 kHz to 300 GHz) for dif- ferent uses. These assignments must be compatible with the rules of the International Telecommunications Union (ITU), to which the United States is bound by treaty. The current assignments are given in a wall chart (Reference 1) and may also be found on the NTIA web site (Reference 2). The list below summarizes the broad features of the spectrum allocation, with particular attention to those sections of scientific interest. The references should be con- sulted for details of the allocations in the frequency bands listed here, which in some cases are quite complex. References 1. United States Frequency Allocations , 1996 Spectrum Wall Chart, Stock No. 003-000-00652-2, U. S. Government Printing Office, P. O. Box 371954, Pittsburgh, PA 15250-7954. 2. http://www.ntia.doc.gov/osmhome/allochrt.html Frequency range Allocation 9 - 19.95 kHz Maritime communication, navigation 19.95 - 20.05 kHz Standard frequency and time signal (also at 60 kHz and 2.5, 5, 10, 15, 20, 25 MHz)
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This note was uploaded on 12/31/2011 for the course CHEMISTRY 101 taught by Professor Dr.dason during the Fall '08 term at Davenport.

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15_16_86 - ALLOCATION OF FREQUENCIES IN THE RADIO SPECTRUM...

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