The A-weighting curve has been widely adopted for environmental noise measurement, and is standard in many sound level meters ( see ITU-R 468 weighting for a further explanation ).

The DAH model has become an ITU recommendation since 2001 ( Recommendation No. ITU-R P. 618-7 ).

For theoretical considerations of mutual interference ( at frequencies between 2 and c. 30 GHz-typically in the Fixed Satellite Service ) where specific antenna performance has not been defined, a reference antenna based on Recommendation ITU-R S. 465 is used to calculate the interference, which will include the likely sidelobes for off-axis effects.

PsF has been recognized by Recommendation ITU-R BT. 709 as a legitimate way to transport progressive frames within an interlaced system.

This system of codes has now been standardised by ITU-R.

* ITU Radiocommunication Sector ( ITU-R )

The ITU Radiocommunication Sector ( ITU-R ) is one of the three sectors ( divisions or units ) of the International Telecommunication Union ( ITU ) and is responsible for radio communication.

Ultra wideband was formerly known as " pulse radio ", but the FCC and the International Telecommunication Union Radiocommunication Sector ( ITU-R ) currently define UWB in terms of a transmission from an antenna for which the emitted signal bandwidth exceeds the lesser of 500 MHz or 20 % of the center frequency.

Deliberations in the International Telecommunication Union Radiocommunication Sector ( ITU-R ) resulted in a Report and Recommendation on UWB in November 2005.

The ITU Radiocommunication Sector ( ITU-R ), a division of the International Telecommunication Union, codifies international standards agreed-upon through multinational discourse.

The ITU-R 468 noise weighting curve, originally proposed in CCIR recommendation 468, but later adopted by numerous standards bodies ( IEC, BSI, JIS, ITU ) was based on the research, and incorporates a special Quasi-peak rectifier to account for our reduced sensitivity to short bursts and clicks.

In March 2008, the International Telecommunications Union-Radio communications sector ( ITU-R ) specified a set of requirements for 4G standards, named the International Mobile Telecommunications Advanced ( IMT-Advanced ) specification, setting peak speed requirements for 4G service at 100 megabit per second ( Mbit / s ) for high mobility communication ( such as from trains and cars ) and 1 gigabit per second ( Gbit / s ) for low mobility communication ( such as pedestrians and stationary users ).

( Source: An Official Document on the WRC 2015 Agenda ( Item 1. 4 ) and its associated Working Party WP5A-1 is now available on the ITU website at http :// www. itu. int / ITU-R / index. asp? category = study-groups & rlink = rcpm-wrc-15-studies & lang = en # rcpm-chapters-wrc-15 )

For play-back of 5. 1 music recommendations of the International Telecommunication Union ( ITU ) have been released and propose following configuration ( ITU-R BS 775 ):

* Radiocommunications Vocabulary, Recommendation ITU-R V. 573-4, ITU-R, Geneva, 2000

* Determination of Necessary Bandwidths Including Examples for their Calculation, Recommendation ITU-R SM. 1138, Geneva, 1995

The continued existence of TAI was questioned in a 2007 letter from the BIPM to the ITU-R which stated " In the case of a redefinition of UTC without leap seconds, the CCTF would consider discussing the possibility of suppressing TAI, as it would remain parallel to the continuous UTC.

In 1992, the CCIR became the ITU-R.

The ISM bands are defined by the ITU-R in 5. 138, 5. 150, and 5. 280 of the Radio Regulations.

ITU-R 468 noise weighting was therefore developed to more accurately reflect the subjective loudness of all types of noise, as opposed to tones.

ITU-R 468 noise weighting with quasi-peak detection is widely used in Europe, especially in telecommunications, and in broadcasting particularly after it was adopted by the Dolby corporation who realised its superior validity for their purposes.

* 120p ( 120. 00 Hz exactly ) is a progressive format and is standardized for UHDTV by the ITU-R BT. 2020 recommendation.

This signal noise is commonly measured using A-weighting or ITU-R 468 weighting.

The ITU-R 468 noise weighting was devised specifically for this purpose, and is widely used in broadcasting, especially in the UK and Europe.

In Europe, it is preferable to apply a ITU-R BS. 468 weighed curve, which is intended to accentuate what is most audible to the human ear, contributing to a more accurate measurement.

Closely following ITU-R Rec.

The subject was extensively covered in the proceedings that led to the adoption of the FCC rules in the U. S. and in the meetings relating to UWB of the ITU-R leading to its Report and Recommendations on UWB technology.

Erikson has noted that, unless this trust developed early, the time ambivalence experienced, in varying degree and temporarily, by all adolescents ( as a result of their remembering the more immediate gratification of wants during childhood, while not yet having fully accepted the long-range planning required by adulthood ) may develop into a more permanent sense of time diffusion.

As such, it has to be distinguished from agricultural land, which, according to Food and Agriculture Organization's ( FAO ) definition, additionally includes land under permanent crops as well as permanent pastures.

The body has a permanent secretariat, the Anglican Communion Office, of which the Archbishop of Canterbury is president.

This last scenario has long been discarded because of the lack of any evidence of a permanent army.

Once the expander has reached an acceptable size, it may be removed and replaced with a more permanent implant.

However, Clipperton has had no permanent inhabitants since 1945.

Costa Rica maintains small forces capable of law enforcement and foreign peacekeeping, but has no permanent standing army.

It is the largest single donation in the history of CUNY and has been used to buy a landmark building on the Upper West Side of Manhattan that is to become the permanent home of the Honors College, and will add support to its endowment.

Camelot has become a permanent fixture in interpretations of the Arthurian legend.

Instead, the team has a " Ring of Honor ", which is on permanent display encircling the field.

The younger the injured victim with a permanent injury the longer that person has to live with the PSLA.

It is the largest city bordering the Mississippi that has no permanent flood wall or levee.

The permanent headquarters for the League of Arab States ( The Arab League ) is located in Cairo. The Secretary General of the League has traditionally been an Egyptian.

Furthermore, this improvement has been proven to be permanent and remains upon the completion of TMS therapy.

The territory has no permanent population ; the population consists of military personnel, civilian officials, scientific researchers and support staff.

David Gold has loaned this trophy to the National Football Museum which is housed in Preston North End's Deepdale Stadium and it is on permanent display to the public.

Comparing this data with the 2001 census shows that the number of permanent residents born on the island has increased by just 3, 000.

Fair Isle has a permanent bird observatory, founded by George Waterston in 1948.

James Burnham's theory has been much discussed, but few people have yet considered its ideological implications ;— this is, the kind of world-view, the kind of beliefs, and the social structure that would probably prevail in a State which was at once unconquerable and in a permanent state of ' cold war ' with its neighbours.

Until recently, the Preclassic was regarded as a formative period, consisting of small villages of farmers who lived in huts and few permanent buildings, but this notion has been challenged by recent discoveries of monumental architecture from that period, such as an altar in La Blanca, San Marcos, from 1000 BC ; ceremonial sites at Miraflores and El Naranjo from 801 BC ; the earliest monumental masks ; and the Mirador Basin cities of Nakbé, Xulnal, El Tintal, Wakná and El Mirador.

It has a small number of permanent professors, appointed for life, and invites about 200 visitors a year for varying terms averaging three months.

ITU-T has a permanent secretariat, the Telecommunication Standardization Bureau ( TSB ), based at the ITU HQ in Geneva, Switzerland.

The General Assembly cannot make binding resolutions, only ' recommendations ', but through its adoption of the " Uniting for Peace " resolution ( A / RES / 377 A ), of 3 November 1950, the Assembly declared that it has the power to authorize the use of force, under the terms of the UN Charter, in cases of breaches of the peace or acts of aggression, provided that the Security Council, owing to the negative vote of a permanent member, fails to act to address the situation.