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Use of radio frequency bands of the electromagnetic spectrum is regulated by governments in most countries, in a Spectrum management process known as frequency allocation or spectrum allocation. Radio propagation does not stop at national boundaries. Giving technical and economic reasons, governments have sought to harmonise the allocation of RF bands and their standardization.
A number standards bodies work on standards for frequency allocation, including:
- International Telecommunication Union (ITU)
- European Conference of Postal and Telecommunications Administrations (CEPT)
- Inter-American Telecommunication Commission (CITEL)
In order to improve harmonisation in spectrum utilisation, the majority of service-allocations stipulated in this document[clarification needed] were incorporated in national Tables of Frequency Allocations and Utilisations which is with-in the responsibility of the appropriate national administration. The allocation might be primary, secondary, exclusive, and shared.
- primary allocation: is indicated by writing in capital letters (see example below)
- secondary allocation: is indicated by small letters
- exclusive or shared utilization: is within the responsibility of administrations
However, military usage, in bands where there is civil usage, will be in accordance with the ITU Radio Regulations. In NATO countries military mobile utilizations will be in accordance with the NATO Joint Civ-il/Military Frequency Agreement (NJFA).
|Allocation to services|
|Region 1||Region 2||Region 3|
Allotment (of a radio frequency or radio frequency channel) (also: frequency allotment | short: allotment) is – according to Article 1.17 of the International Telecommunication Union´s (ITU) Radio Regulations (RR) – defined as «Entry of a designated frequency channel in an agreed plan, adopted by a competent conference, for use by one or more (frequency) administrations for a terrestrial or space radiocommunication service in one or more identified countries or geographical areas and under specified conditions.»
Frequency allocation is also a special term, used by national frequency assignment authorities. Other terms are:
|ITU languages||ITU RR
|Regions or countries||allotisement
- Haim, Mazar (2008-08-01). An Analysis of Regulatory Frameworks for Wireless Communications, Societal Concerns and Risk: The Case of Radio Frequency (RF) Allocation and Licensing (PDF). Middlesex University.
- ITU Radio Regulations, Section IV. Radio Stations and Systems – Article 1.17, definition: allotment (of a radio frequency or radio frequency channel)