International Telecommunication Union

1957 ◽  
Vol 11 (3) ◽  
pp. 538-538
Keyword(s):  
Experimental Data ◽  
Technical Assistance ◽  
Study Groups ◽  
Great Difficulty ◽  
Consultative Committee ◽  
Sufficient Time ◽  
International Telecommunication Union ◽  
International Telecommunication ◽  
Definition Of ◽  
New System

The eighth plenary assembly of the International Radio Consultative Committee (CCIR) was held in Warsaw from August 9 to September 13, 1956, under the chairmanship of Professor Pawel Szulkin (Poland). The assembly elected with an absolute majority Dr. E. Metzler (Switzerland) as Director. The assembly considered a report which dealt with the activities of the fourteen established study groups as well as proposals to reorganize the study groups. The Warsaw decisions modifying procedures experimentally for the future were the outcome of proposals by the Organization and Finance Committees, the CCIR Secretariat and of discussions of the problem in the plenary assembly. The study groups were to remain the same in number and the allocation of work was in general the same, though it was felt desirable to give a more precise definition of their terms of reference. Among the resolutions adopted by the assembly, a number dealt with the length, content and quantity of documents submitted to the chairmen of the study groups, emphasizing that these should be as short as possible, as few as possible and that they should contain only the minimum indispensable mathematical formulae or numerical and experimental data. The new system was also expected to improve the position of distant countries which had so far experienced great difficulty in receiving preliminary documentation in sufficient time before plenary assemblies. The Technical Assistance Committee recommended the creation of a joint CCIR-International Telegraph and Telephone Consultative Committee (CCITT) committee to consider the ways and means whereby technical assistance was at present granted and to make suggestions for improvements, as far as telecommunication was concerned, to the ITU Administrative Council.

International Telecommunication Union

1954 ◽  
Vol 8 (2) ◽  
pp. 267-268
Keyword(s):  
Buenos Aires ◽  
Study Groups ◽  
Best Interests ◽  
Consultative Committee ◽  
International Telecommunication Union ◽  
Technical Aspects ◽  
International Service ◽  
International Telecommunication ◽  
Operational Methods

The seventh plenary assembly of the International Telegraph Consultative Committee (CCIT) of the International Telecommunication Union met in Arnhem, Netherlands, from June 5 through 13, 1953, under the chairmanship of Mr. van der Toorn (Netherlands). Most of the work of the session was carried on in study groups on the following subjects: 1) general telegraphy, 2) technical aspects of the establishment, operation and maintenance of telegraph channels, 3) technical aspects of telegraph apparatus, 4) vocabulary, symbols and classification, 5) phototelegraphy and facsimile, 6) technical aspects of switching in the service of start-stop apparatus, 7) European telegraph network operated by start-stop apparatus, 8) operational methods and quality of service, 9) services offered to users and rates other than telex rates, and 10) international service of telegraph subscribers and rates for such service. At the request of the Buenos Aires Plenipotentiary Conference of ITU, CCIT considered the possibility of amalgamating itself with the International Telephone Consultative Committee (CCIF) and concluded, by a vote of 16 to 11 with 1 abstention, that such a course would not serve the best interests of ITU. CCIT decided to hold its eighth plenary assembly in Geneva in the first half of 1956.

scholarly journals Radio Astronomy and the CCIR

1991 ◽  
Vol 112 ◽  
pp. 288-295
Author(s):  
Vernon Pankonin
Keyword(s):  
Radio Astronomy ◽  
Study Groups ◽  
Space Research ◽  
Study Group ◽  
Consultative Committee ◽  
International Telecommunication Union ◽  
International Telecommunication ◽  
Special Event ◽  
Technical Advice ◽  
Group 2

ABSTRACTThe International Radio Consultative Committee (CCIR) is a permanent organization within the International Telecommunication Union (ITU). The purpose of the CCIR is to provide technical advice to the ITU and its various organs and members on the characteristics of the radio services which are governed by the International Radio Regulations, a product of the ITU. This is accomplished through reports and recommendations which may result from the regularly scheduled meetings of the CCIR or from meetings convened to prepare for a special event such as an upcoming World Administrative Radio Conference (WARC). The CCIR is divided into Study Groups. Study Group 2 covers Space Research and Radioastronomy. This paper describes the interactions of radio astronomers with Study Group 2. The radio astronomy related Study Questions currently before this Study Group are delineated, and the nature of the active reports and recommendations are discussed.

International Telecommunication Union

1955 ◽  
Vol 9 (2) ◽  
pp. 278-278
Keyword(s):  
United Nations ◽  
International Organizations ◽  
Technical Assistance ◽  
Research Work ◽  
Scientific Progress ◽  
Telecommunication Networks ◽  
International Telecommunication Union ◽  
The Public ◽  
International Telecommunication ◽  
Social Council

The annual report of the International Telecommunication Union (ITU) to the Economic and Social Council for the year 1953 stated that considerable progress had been made by the various countries during the year in developing or modernizing existing telecommunication networks, within the limits of technical and scientific progress and of credit available for investment in communications. The grid of telegraph and telephone circuits criss-crossing frontiers had been considerably tightened up and reinforced during 1953, important research work had been carried on, certain practical steps had been taken with a view to providing the public with semi-automatic international telephone service and a direct international telegraph subscribers' service, and the national broadcasting networks and television transmittal services had been expanded and improved. While the credit for these achievements, the report stated, was above all due to the specialists, no extension of telecommunication networks would have been possible without the intervention of the organs of ITU in the coordination of projects and in organizing cooperation between the various countries. The report contained information on ITU membership and on the organization and operation of the permanent organs of ITU, as well as a detailed summary of ITU activities during the year 1953, its relations with the United Nations and other international organizations, and its budgets for 1953 and 1954, for which the overall figures were respectively 6,225,100 and 6,367,500 Swiss francs, exclusive of United Nations technical assistance funds.

International Telecommunication Union

1955 ◽  
Vol 9 (4) ◽  
pp. 551-552
Keyword(s):  
Buenos Aires ◽  
Power Lines ◽  
Consultative Committee ◽  
Transmission Systems ◽  
International Telecommunication Union ◽  
International Operation ◽  
International Service ◽  
International Telecommunication ◽  
Considerable Debate ◽  
Carrier Systems

The seventeenth Plenary Assembly of the International Telephone Consultative Committee (CCIF) was held in Geneva from October 4 to 12, 1954, under the chairmanship of Mr. Wettstein (Switzerland). Delegates from 36 countries attended the Assembly, which in pursuance of a resolution of the Plenipotentiary Conference of the International Telecommunication Union (ITU) held at Buenos Aires in 1952, considered the possible amalgamation of the CCIF and the International Telegraph Consultative Committee (CCIT). After considerable debate, the Assembly by a vote of 21 to 13 with 1 abstention expressed the view that such an amalgamation would be in the interests of the ITU. Among the technical matters dealt with at the seventeenth Plenary Assembly were 1) the general switching program, 2) protection of telecommunication lines from danger and disturbances due to neighboring power lines, 3) protection of telecommunication cables from corrosion, 4) transmission, including telephone transmission in the international service, general characteristics of telephone circuits, the use of telephone circuits for telegraphy or phototelegraphy, broadcast and television relays over metallic lines, specification of carrier systems on metallic lines, radio relay links, links between mobile radiotelephone stations and international telephone lines, the maintenance and regulation of circuits and transmission systems, international operation and rates, and international signalling and switching; and 5) graphic and letter symbols, telephone vocabulary.

scholarly journals International Telecommunication Union

1948 ◽  
Vol 2 (3) ◽  
pp. 536-537 ◽  
Keyword(s):  
The Netherlands ◽  
South African ◽  
Consultative Committee ◽  
International Telecommunication Union ◽  
Vice Chairman ◽  
International Telecommunication ◽  
Quality Of Transmission ◽  
Interim Period ◽  
Chairman Committee

The sixth meeting of the International Telegraph Consultative Committee was held in Brussels from May 10 to 27, 1948, the first meeting of the committee since 1936. C. Caenepenne, head of the Belgian delegation, was elected chairman of the conference, and E. C. Smith, head of the South African delegation, was elected vice-chairman. Committee reports presented to the conference included studies of the quality of transmission, standardization of telegraphic devices, relays, and general telegraphic and telephonic problems. Organizational matters for the interim period between meetings of the committee were discussed and a budget accepted. The seventh meeting of the Consultative Committee was scheduled for 1951 in the Netherlands.

International Telecommunication Union

1959 ◽  
Vol 13 (2) ◽  
pp. 321-321
Keyword(s):  
World Wide ◽  
Large Majority ◽  
Consultative Committee ◽  
International Telecommunication Union ◽  
International Telecommunication ◽  
European System

The Administrative Telegraph and Telephone Conference of the International Telecommunication Union (ITU) was held in Geneva, September 29–November 29, 1958, to revise the regulations in telephony and telegraphy adopted in Paris in 1949. By a large majority the Conference adopted the principle that the Telephone Regulations should be world-wide in scope. The Telegraph Regulations, however, were still to include provisions applicable only to Europe, with reference to rates in the European system, the phototelegraph service, and different rebates for press telegrams. The three resolutions concerning telegraphy which the Conference decided to include in the regulations which it adopted instructed the International Telegraph and Telephone Consultative Committee (CCITT) to study the possibility: 1) of making the provisions relative to the phototelegraph service world-wide in scope; 2) of modifying international alphabet No. 2 so that at least two additional signals from the figure case would be available to administrations or recognized private operating agencies for the needs of their internal services; and 3) of removing difficulties which still existed for the operational services and for the users in the counting of words. The Conference also made certain detailed changes in the Telegraph Regulations.

International Telecommunication Union

1962 ◽  
Vol 16 (3) ◽  
pp. 631-632
Keyword(s):  
Developing Countries ◽  
Technical Assistance ◽  
Telecommunication Networks ◽  
International Telecommunication Union ◽  
International Telecommunication ◽  
Financial Regulations ◽  
Traditional Work

The sixteenth session of the Administrative Council of the International Telecommunication Union (ITU) was held in Geneva from April 22 to May 20, 1961, under the chairmanship of Mr. Vladimir Senk (Yugoslavia). Mr. Šenk spoke of some of the more important matters which the sixteenth session would have to discuss. He stressed that as the Union came to include more developing countries, technical assistance became increasingly important. He pointed out that, in addition to the help of experts and assistance in the training of their staff, these countries needed aid in obtaining essential materials for the development of their telecommunication networks. He stated that technical assistance in all its forms has gradually become a part of the traditional work of the Union. Turning to financial matters, Mr. Šenk mentioned that it would be necessary to revise the financial regulations of the union.

scholarly journals Traditional protection ratios in FM sound broadcasting – still appropriate for interference management?

2011 ◽  
Vol 9 ◽  
pp. 391-396
Author(s):  
J. Philipp
Keyword(s):  
Signal To Noise Ratio ◽  
Interference Management ◽  
Audio Signal ◽  
International Telecommunication Union ◽  
Audio Quality ◽  
International Telecommunication ◽  
Broadcasting System ◽  
Proper Definition ◽  
Definition Of

Abstract. A detailed analysis of the measurement procedures recommended by the International Telecommunication Union (ITU) shows that – with proper definition of audio quality – the FM broadcasting system can provide an audio signal-to-noise ratio of no better than 40 dB, when the interference in the neighboring channels exhausts the limits established by the internationally agreed protection ratios. Thus any attempt to relax the protection, be it motivated by the desire to implement additional FM or new digital services in the FM band, would inevitably degrade reception quality of existing services to levels hardly acceptable by broadcast listeners.

International Telecommunication Union

1950 ◽  
Vol 4 (1) ◽  
pp. 135-136 ◽  
Keyword(s):  
Civil Aviation ◽  
Consultative Committee ◽  
International Telecommunication Union ◽  
International Telecommunication ◽  
The World ◽  
European System

International Telegraph and Telephone Conference: The International Telegraph and Telephone Conference was held in Paris from May 23 to August 4, 1949 to amend the regulations drawn up at Cairo in 1938. In addition the conference considered questions referred to it by the International Telegraph Consultative Committee. Attention was concentrated on two items: unification of categories of telegrams; and tariff principles. The number of categories of telegrams was reduced from five to three, and all member countries were granted freedom to fix their own terminal and transit rates, as the conference abolished the Cairo regulation which had imposed restrictive rates for countries in the European system in their relations with countries in the extra-European system. The conference devised rules and a method of calculating rentals applicable to the joint use of circuits operated by start-stop apparatus in the European civil aviation system. The telephone regulations devised applied only to countries within the European system, whereas the telegraphy regulations were applicable throughout the world.

scholarly journals Radio navigation systems: definitions and classifications

2021 ◽  
pp. 1-10
Author(s):  
Cezary Specht
Keyword(s):  
International Association ◽  
Scientific Discipline ◽  
Civil Aviation ◽  
Navigation Systems ◽  
International Telecommunication Union ◽  
Radio Navigation ◽  
International Telecommunication ◽  
Uniform Definition ◽  
Definition Of ◽  
Marine Navigation

Abstract Radio navigation systems (RNSs) are commonly applied in air, land and marine navigation. They are most often used for position determination. However, when comparing the definitions of this concept provided by global organisations, such as the International Association of Marine Aids to Navigation and Lighthouse Authorities (IALA), International Civil Aviation Organization (ICAO), International Maritime Organization (IMO) or International Telecommunication Union (ITU), it should be noted that the definitions presented differ significantly. Due to the ambiguity and numerous contradictions, the RNS classification varies depending on the definition of the term ‘radio navigation’ adopted, which poses serious interpretation problems. This article analyses the concept of radio navigation based on the most important global documents and legal acts on this issue. It points to fundamental differences in the understanding of the term and proposes the adoption of a new, uniform definition for air, land and marine navigation. Based on this definition, the current paper proposes a uniform RNS classification. The proposed definition of the concept of radio navigation and the resulting RNS classification are essential for the understanding of this term to achieve global uniformity and fundamental to the harmonious development of the scientific discipline of navigation. The current proposal should initiate a discussion on the meaning of the concept of radio navigation and the RNS classification.

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