1、 Recommendation ITU-R V.573-6 (08/2015) Radiocommunication vocabulary V Series Vocabulary and related subjects ii Rec. ITU-R V.573-6 Foreword The role of the Radiocommunication Sector is to ensure the rational, equitable, efficient and economical use of the radio-frequency spectrum by all radiocommu
2、nication services, including satellite services, and carry out studies without limit of frequency range on the basis of which Recommendations are adopted. The regulatory and policy functions of the Radiocommunication Sector are performed by World and Regional Radiocommunication Conferences and Radio
3、communication Assemblies supported by Study Groups. Policy on Intellectual Property Right (IPR) ITU-R policy on IPR is described in the Common Patent Policy for ITU-T/ITU-R/ISO/IEC referenced in Annex 1 of Resolution ITU-R 1. Forms to be used for the submission of patent statements and licensing dec
4、larations by patent holders are available from http:/www.itu.int/ITU-R/go/patents/en where the Guidelines for Implementation of the Common Patent Policy for ITU-T/ITU-R/ISO/IEC and the ITU-R patent information database can also be found. Series of ITU-R Recommendations (Also available online at http
5、/www.itu.int/publ/R-REC/en) Series Title BO Satellite delivery BR Recording for production, archival and play-out; film for television BS Broadcasting service (sound) BT Broadcasting service (television) F Fixed service M Mobile, radiodetermination, amateur and related satellite services P Radiowav
6、e propagation RA Radio astronomy RS Remote sensing systems S Fixed-satellite service SA Space applications and meteorology SF Frequency sharing and coordination between fixed-satellite and fixed service systems SM Spectrum management SNG Satellite news gathering TF Time signals and frequency standar
7、ds emissions V Vocabulary and related subjects Note: This ITU-R Recommendation was approved in English under the procedure detailed in Resolution ITU-R 1. Electronic Publication Geneva, 2015 ITU 2015 All rights reserved. No part of this publication may be reproduced, by any means whatsoever, without
8、 written permission of ITU. Rec. ITU-R V.573-6 1 RECOMMENDATION ITU-R V.573-6 Radiocommunication vocabulary (1978-1982-1986-1990-2000-2007-2015) Scope This Recommendation provides the main vocabulary reference, giving synonymous terms in six languages and the associated definitions. It includes term
9、s given in Article 1 of the Radio Regulations (RR) and extends the list to technical terms defined in texts of the ITU-R. Keywords Radiocommunication vocabulary, Radio Regulations Related ITU Recommendations Recommendation ITU-R V.430-4 Use of the international system of units (SI) Recommendation IT
10、U-R V.431-8 Nomenclature of the frequency and wavelength bands used in telecommunications Recommendation ITU-R V.574-5 Use of the decibel and the neper in telecommunications Recommendation ITU-R V.665-3 Traffic intensity unit The ITU Radiocommunication Assembly, considering a) that Article 1 of the
11、Radio Regulations (RR) contains the definitions of terms for regulatory purposes; b) that the Radiocommunication Study Groups have a need to establish definitions for technical terms that do not appear in RR Article 1; c) that it would be desirable for some of these terms and definitions established
12、 by the Radiocommunication Study Groups to be more widely used within the ITU-R, recommends 1 that the terms listed in RR Article 1 and the terms established by the Radiocommunication Study Groups should be used as far as possible with the meaning ascribed to them in the corresponding definition; 2
13、that Study Groups should, where there is a difficulty in using any of the terms with the meaning given in the corresponding definition, forward to the Coordination Committee for Vocabulary (CCV) a proposal for revision or alternative application, accompanied by substantiating argument; 3 that, with
14、regard to diagrams for international use concerning telecommunications, the administrations and recognized operating agencies and the Radiocommunication Bureau should use the graphical symbols for diagrams given in International Electrotechnical Commission (IEC) International Standards of the series
15、 IEC 60617 and should observe the rules for the preparation of documentation and for item designation laid down in International Standards of the series IEC 61082 and IEC 61346. Administrations wishing to use symbols on equipment should refer to International Standards of the series IEC 60417; 2 Rec
16、 ITU-R V.573-6 4 that, as far as the use of abbreviations in texts of the ITU is concerned, the following guidelines should be taken into account: Abbreviations should not be used in titles. The use of abbreviations specific to a text should be limited to cases when they make the text easier to rea
17、d, i.e. when an abbreviation may be used a number of times in the same text, or is used in a table or a diagram. In each text, the meaning of any abbreviation shall be given when this abbreviation is used for the first time; furthermore, the meaning of abbreviations used in a text should be recalled
18、 in an alphabetical list, or in the legend of tables or diagrams. As far as possible, the same abbreviation should be used in the different working languages, in particular in the case of specific abbreviations quoted in the second indent above. The use of abbreviations having fewer than three characters could cause confusion and should be avoided; 5 that the comprehensive list of terms and their definitions that is available at http:/www.itu.int/ITU-R/go/terminology-database should be used.
