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International Telecommunications Union

The International Telecommunications Union, 150 years of history

Ever since the 17th May 1865, date on which the first telegraphic convention to manage the first international telegraphic networks was signed, the ITU has been at the centre of all communications related technological advances, from telegraph to satellites, the internet and mobile phones. 

The first international radio-telegraphic convention was held in Berlin in 1906, in particular to regulate wireless telegraphy, of which the first spectacular application was in the sea safety field. At the time, the first Radio-broadcasting Regulation (RR) only covered two wavelengths, 300 m and 600 m, used for maritime radio-communications. 

Two famous shipwrecks showed the effectiveness of marine radio:

  1. Thanks to a wireless call in 1909, 920 passengers were saved by the American coastguards when the Republic and the Florida collided.
  2. The Titanic used the SOS code for the first time in 1912: 700 people, or almost a third of the passengers, were rescued by several ships, including the Carpathia, which arrived on site one hour after the ship sank.

This conference established the “SOS” as the global marine distress signal. At the start of that century, the ITU had 29 member nations.

As a direct consequence of the First World War, the 20s experienced a high increase in both domestic and professional use of radio. It became necessary to list and organise frequency bands to improve efficiency and quality. To accompany this rapid growth, the 1927 Washington Conference resulted in the first frequency distribution table.  The frequency unit at the time was the kilocycle (it was only in 1959 that the Hertz became the frequency unit of measurement). In 1932, to better express the range of its responsibilities, the International telegraphic union became the International Telecommunications Union

In 1947, following the Atlantic City conference, the ITU became attached to the United Nations.  During this conference, which was held from 16th May to 2nd October 1947 (four and a half months), the frequency distribution table was completely revised, as the result of the progress in the uses of radio made during the Second World War and the beginning of the Cold War.   The end of the 60s marked the beginning of the first frequency assignments for space programmes (1968).

The very serious RR also provided for possible extra-terrestrial communications. Indeed, n° 5341 of RR article 5 recognises the SETI (Search for Extra-Terrestrial Intelligence programme. This American programme dating from the 60s, groups together projects of which the purpose is to detect signals an extraterrestrial life form might emit, whether deliberately or not, from its planet of origin.   The searches were located in the 1,400-1,727 MHz and 197-220 GHz bands.

Currently, the ITU has 193 member countries and some 700 private sector organisations. A long way from its first international telegraphy harmonisation works, today its actions cover the entire ICT sector, from digital broadcasting to the internet, including mobile technology and 3D television.  

To find out more:

The WRCs and the ITU-R study commissions

The ITU gathers together 193 member states. It is composed of three sectors: standardisation (ITU-T), telecommunications development (ITU-D) and radiocommunications (ITU-R). The ITU's objectives, structure, organisation and operation are governed by its constitution and its convention which are amended every four years during the plenipotentiary conferences. These two fundamental texts lay down the principles on which the Union is founded, in particular the role it is given to assign the radio spectrum frequency bands and record the uses of frequencies and orbital resources in order to avoid interference between member states.

It is the ITU-R's role to assign frequencies to radiocommunications services worldwide, coded in the Radiocommunications Regulations.

  •   The World Radiocommunications conferences (WRC) meet every three or four years to decide on the changes to be made to the Radiocommunications Regulations (RR) in order to adapt the existing framework to the spectrum needs to develop existing applications or introduce new applications. The RR splits the spectrum into frequency bands that are each assigned to one, or more generally several, radiocommunications services; the RR governs the use that these services can make of these bands.  The RR is a treaty that is binding on the public services that are members of the ITU. Each state has a national frequency plan that carries over and completes the relevant RR provisions for that State.
  •  The ITU-R study commissions, which are supervised by the radiocommunications assemblies that meet jointly with the world conferences, adopt Recommendations that tend towards a certain technical standardisation at the worldwide level. Some of these commission work groups are also in charge of preparing the items on the WRC conference agenda.
  • The Radiocommunications Regulations are the regulatory framework for the spectrum use that is applicable to all ITU member states. It is completed by a set of procedural rules which, when applicable, clarify certain obscure aspects or lift certain incoherences.

The ANFR’s action with the ITU

The Agency takes part in the preparatory works in the study commissions and in the ITU-R work groups and actions, in the CEPT groups and in the inter-regional meetings. It defends the French positions drawn up with the assignees and all the French players in the sector in question in the framework of the advisory commission for world radiocommunications conferences and the radiocommunications assembly advisory commissionn.

  • The WRCs, which last four weeks considering the number and complexity of the studies required by crowded agendas and the high economic stakes these decisions put into play, require much prior work. These are carried out within the ITU Radiocommunications sector (ITU-R) by its work and action groups, under the control of the Conference preparation meeting (CPM) which meets about six months prior to the WRC in order to finalise technical and regulatory studies in the form of a report and to identify options to fulfil the different items on the agenda. The purpose of this report is to help all ITU member states to make proposals during the Conference.
  • WRC preparation also occurs in the context of regional organisations (CEPT in Europe, CITEL for the Americas, APT for Asia-Pacific, RCC for the IEC countries, Arab League, UAT for Africa) and inter-regional organisations through exchanges between those organisations.

Démonstration du banc de test #DAS de la start-up ART FI, qui va permettre à l’@anfr de réaliser des contrôles approfondis sur les nouveaux modèles de smartphones #5G

ANFR a Retweeté

Dans les locaux de l’@anfr, @cedric_o face à une machine Art Fi, boîte française spécialisée dans les mesures d’expositions aux ondes.

Ici, un smartphone 5G est étudié sous toutes les coutures.

Art Fi espère faire intégrer ses machines dans les usines de smartphones.

.@cedric_o « les associations d’élus et le comite national de dialogue seront pleinement associés à ce plan de contrôle de la #5G »

.@cedric_o « Pour les contrôles sur l’exposition aux #ondes des antennes, le @gouvernementFR a demandé que l’@anfr engage un plan d’↗️ substantielle des contrôles, qui passeront de 6500 mesures en 2020 à 10 000 en 2021 »

.@cedric_o « j’ai demandé à l’ANFR qu’elle double le nombre de contrôles des #DAS des smartphones en 2021 : elle en contrôlera 140 en 2021, soit au moins 85 % des modèles les plus vendus en France, en ciblant les téléphones #5G »

.@cedric_o « Si la France figure parmi les pays les + rigoureux pour le contrôle de l’exposition aux #ondes, le @gouvernementFR a fait le choix de les renforcer encore pour apporter aux élus et aux citoyens les éléments objectifs de réassurance »

« L’ANFR est la seule agence au niveau européen à réaliser des contrôles sur les smartphones de #DAS. Aucune agence au monde ne réalise autant de contrôles » @cedric_o

.@cedric_o procède à la mesure de l’exposition aux #ondes d’objets connectés grâce à une sonde large bande : ici, une borne #wifi

Bienvenue à @cedric_o qui nous rend visite pour une présentation du dispositif de contrôle des #ondes, dans la perspective du déploiement de la #5G

La 5G conférence c'est déjà demain ! Venez discuter des nouveaux enjeux liés à l'arrivée de la 5G avec nos intervenants ! Un événement organisé en partenariat avec @orange @anfr et @TDFgroupe
📱 Inscription en Live Streaming disponible ici :

.@cedric_o annonce de nouvelles mesures de contrôles de l’exposition aux #ondes « nous allons donner les moyens à l’ANFR de répondre aux interrogations sur l’impact du déploiement de la #5G ». ITW dans @le_Parisien

Saviez-vous que certaines compagnies aériennes offrent des services de connectivités pendant les vols en utilisant les technologies 2G, 3G et 4G ? C’est ce qu’on appelle les réseaux MCA (Mobile Communications Aircraft). Et bientôt la #5G à bord des ✈️ ?

Découvrez le parcours, les missions et les ambitions pour l'ANFR de @ChrisDigne , le nouveau Directeur général adjoint de l’@ANFR .
Lire son interview complète ici :👉

#recrutement 🧐
L'@anfr recrute :
▶️ Un(e) technicien(ne) en radio fréquences


#recrutement 🧐
L'@anfr recrute :

▶️ Un(e) Gestionnaire exécution des dépenses et recouvrement des recettes au sein de l’Agence comptable


#LesEnquêtesANFR 🕵️
Les agents de l’@anfr au secours du réseau radio des #pompiers pour rétablir les communications des secours d’urgence. Découvrez l’enquête ici👇:

[#Newsletter] 🗞️🗞️

🆕 Découvrez notre dernière lettre d'information !


[#ObservatoireANFR] 📱📊

📶 Au 1er octobre, l’ANFR a autorisé près de 500 sites #5G expérimentaux utilisant la bande 3,5 GHz sur le territoire français. Retrouvez, en carte, la liste de ces sites par agglomération. Plus d'informations sur

[#ObservatoireANFR] 📱📊

Le bilan des sites #4G mis en service en métropole au 1er octobre :
📶 @Orange (23 592 sites, + 369 en septembre)
📶 @SFR (20 393 sites, + 211)
📶 @bouyguestelecom (19 737 sites, + 429)
📶 @free (17 673 sites, + 325)


[#ObservatoireANFR] 📱📊
Au 1er octobre 2020, 53 994 sites #4G sont autorisés par l' @anfr en France : découvrez l’étude complète sur l’évolution du déploiement des réseaux #mobiles en métropole et Outre-Mer.


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