The
ITU Radiocommunication Sector (
ITU-R) is one of the three sectors (divisions or units) of the
International Telecommunication UnionThe International Telecommunication Union is the second-oldest international organization still in existence , established to standardize and regulate international radio and telecommunications. It was founded as the International Telegraph Union in Paris on 17 May 1865...
(ITU) and is responsible for
radioRadio is the transmission of signals by modulation of electromagnetic waves with frequencies below those of visible light. Electromagnetic radiation travels by means of oscillating electromagnetic fields that pass through the air and the vacuum of space...
communication.
Its role is to manage the international radio-frequency spectrum and satellite orbit resources and to develop standards for radiocommunications systems with the objective of ensuring the effective use of the
spectrumA spectrum is a condition that is not limited to a specific set of values but can vary infinitely within a continuum. The word saw its first scientific use within the field of optics to describe the rainbow of colors in visible light when separated using a prism; it has since been applied by...
.
The
ITU Radiocommunication Sector (
ITU-R) is one of the three sectors (divisions or units) of the
International Telecommunication UnionThe International Telecommunication Union is the second-oldest international organization still in existence , established to standardize and regulate international radio and telecommunications. It was founded as the International Telegraph Union in Paris on 17 May 1865...
(ITU) and is responsible for
radioRadio is the transmission of signals by modulation of electromagnetic waves with frequencies below those of visible light. Electromagnetic radiation travels by means of oscillating electromagnetic fields that pass through the air and the vacuum of space...
communication.
Its role is to manage the international radio-frequency spectrum and satellite orbit resources and to develop standards for radiocommunications systems with the objective of ensuring the effective use of the
spectrumA spectrum is a condition that is not limited to a specific set of values but can vary infinitely within a continuum. The word saw its first scientific use within the field of optics to describe the rainbow of colors in visible light when separated using a prism; it has since been applied by...
.
ITUItu is an old and historic municipality in the state of São Paulo in Brazil. The population in 2004 is 149,758 and the area is 641.68 km². The elevation is 583 m. This place name comes from the Tupi language. Itu is linked with the highway numbered the SP-75 and are flowed with two rivers, Tietê...
is required, according to its Constitution, to allocate spectrum and register
frequency allocationThe radio frequency electromagnetic spectrum is an aspect of the physical world which, like land, water, and air, is subject to usage limitations. Use of radio frequency bands of the electromagnetic spectrum is regulated by governments in most countries, in a Spectrum management process known as...
, orbital positions and other parameters of satellites, “in order to avoid harmful interference between radio stations of different countries”. The international
spectrum managementThe radio frequency spectrum is a conceptual tool used to organize and map the physical phenomena of electromagnetic waves. These waves propagate through space at different frequencies, and the set of all possible frequencies is called the electromagnetic spectrum...
system is therefore based on regulatory procedures for
frequency coordinationFrequency Coordination is a technical and regulatory process which is intended to remove or mitigate radio-frequency interference between different radio systems which utilise the same operational frequency....
, notification and registration.
ITU-R has a permanent secretariat, the Radiocommunication Bureau, based at the ITU HQ in
GenevaGeneva, is the second-most-populous city in Switzerland and is the most populous city of Romandie...
,
SwitzerlandSwitzerland , officially the Swiss Confederation , is a federal republic consisting of 26 states named cantons, with Bern as the seat of the federal authorities...
. The elected Director of the Bureau is Mr. Valery Timofeev of
RussiaRussia , officially known as both Russia and the Russian Federation , is a country in northern Eurasia . It is a semi-presidential republic, comprising 83 federal subjects...
. First elected by the ITU Membership to the Directorship in 2002, Mr. Timofeev was re-elected for a 2nd 4-year term in November 2006.
History
The CCIR—
Comité consultatif international pour la radio, "Consultative Committee on International Radio" or "International Radio Consultative Committee"—was founded in 1927.
In 1932 the CCIR and several other organizations (including the original
ITUItu is an old and historic municipality in the state of São Paulo in Brazil. The population in 2004 is 149,758 and the area is 641.68 km². The elevation is 583 m. This place name comes from the Tupi language. Itu is linked with the highway numbered the SP-75 and are flowed with two rivers, Tietê...
, which had been founded as the International Telegraph Union in 1865) merged to form what would in 1934 become known as the International Telecommunication Union. In 1992, the CCIR became the ITU-R.
See also
- ITU-T
The Telecommunication Standardization Sector coordinates standards for telecommunications on behalf of the International Telecommunication Union and is based in Geneva, Switzerland....
ITU-R Recommendations
- Rec. 601
- Rec. 709
ITU-R Recommendation BT.709, more commonly known by the abbreviations Rec. 709 or BT.709, standardizes the format of High-definition television, having 16:9 aspect ratio.-Pixel count:...
- Global Standards Collaboration
The "Global Standards Collaboration" started life as The "Inter-regional Telecommunications Standards conference in 1990. This was an initiative of the T1 Committee of the United States who invited the other founding partner organizations ITU-T, ETSI and the Japanese TTC to the first ISC Meeting...
External links