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(ITU) ﻟﻼﺗﺼﺎﻻﺕ ﺍﻟﺪﻭﻟﻲ ﺍﻻﺗﺤﺎﺩ ﻓﻲ ﻭﺍﻟﻤﺤﻔﻮﻇﺎﺕ ﺍﻟﻤﻜﺘﺒﺔ ﻗﺴﻢ ﺃﺟﺮﺍﻩ ﺍﻟﻀﻮﺋﻲ ﺑﺎﻟﻤﺴﺢ ﺗﺼﻮﻳﺮ ﻧﺘﺎﺝ (PDF) ﺍﻹﻟﻜﺘﺮﻭﻧﻴﺔ ﺍﻟﻨﺴﺨﺔ ﻫﺬﻩ .ﻭﺍﻟﻤﺤﻔﻮﻇﺎﺕ ﺍﻟﻤﻜﺘﺒﺔ ﻗﺴﻢ ﻓﻲ ﺍﻟﻤﺘﻮﻓﺮﺓ ﺍﻟﻮﺛﺎﺋﻖ ﺿﻤﻦ ﺃﺻﻠﻴﺔ ﻭﺭﻗﻴﺔ ﻭﺛﻴﻘﺔ ﻣﻦ ﻧﻘﻼ ً◌ 此电子版（PDF版本）由国际电信联盟（ITU）图书馆和档案室利用存于该处的纸质文件扫描提供。 Настоящий электронный вариант (PDF) был подготовлен в библиотечно-архивной службе Международного союза электросвязи путем сканирования исходного документа в бумажной форме из библиотечно-архивной службы МСЭ. © International Telecommunication Union INTERNATIONAL RADIO CONSULTATIVE COMMITTEE C.C.I.R. DOCUMENTS OF THE IXth PLENARY ASSEMBLY LOS ANGELES, 1959 VOLUME III REPORTS Published by the INTERNATIONAL TELECOMMUNICATION UNION GENEVA, 1959 INTERNATIONAL RADIO CONSULTATIVE COMMITTEE C.C.I.R. DOCUMENTS OF THE IXth PLENARY ASSEMBLY LOS ANGELES, 1959 VOLUME III REPORTS Published by the INTERNATIONAL TELECOMMUNICATION UNION GENEVA, 1959 PAGE INTENTIONALLY LEFT BLANK PAGE LAISSEE EN BLANC INTENTIONNELLEMENT Section A: Transmission Section B: Reception Section C: Fixed services Section D: Mobile services and space systems Section E: Sound broadcasting and television REPORTS Section F: Radio-relay systems Section G: Propagation Section H: Standard-frequencies and Time signals Section J: Monitoring of Transmissions Section K: Vocabulary PAGE INTENTIONALLY LEFT BLANK PAGE LAISSEE EN BLANC INTENTIONNELLEMENT TABLE OF CONTENTS OF VOLUMES I TO V of the documents of the IXth Plenary Assembly of the C.C.I.R. (Los Angeles, 1959) Page VOLUME I Recommendations of the C.C.I.R. VOLUME II Questions, Resolutions and Study Programmes of the C.C.I.R. VOLUME III Table of contents of Volumes I to V ........................................................................... 5 Layout of Volumes I, II and III . ....................... 6 Note by the Director of the C.C.I.R............................................................................... 9 Complete list of Reports of the C.C.I.R. ................................................................. 10 Reports of the C.C.I.R., classified under the following subject headings: A Transmission..................................................... 15 B Reception ..................................................... 39 C Fixed Services........................ ........................................................................... 55 D Mobile services and Space-systems ...................................................... 101 E Sound broadcasting and Television ...................................................... 125 F Radio-relay systems......................................................................................... 189 G Propagation............................................................................ 217 H Standard-frequencies and Time sig n a ls.......................................................... 383 J International monitoring ................................................................................. 393 K Vocabulary........................................................................................................ 417 (A numerical list of all valid Reports appearing therein is given at the head of each section) VOLUME IV Report of the Director of the C.C.I.R., the Finance Committee and the Organization Committee List of Delegates Numerical list of documents List of documents classified by Study Groups VOLUME V Minutes of Plenary Meetings Note. — For ease o f reference the page numbering in the English and French editions has been made the same. LAYOUT OF VOLUMES I, II AND III (Recommendations, Reports, Resolutions, Questions and Study Programmes of the C.C.I.R.) General The Recommendations, Reports, Resolutions, Questions and Study Programmes of the C.C.I.R., the texts of which appear in Volumes I, II and III, are those which have been approved by the IXth Plenary Assembly of the C.C.I.R., together with those which, approved by the Vth, Vlth, Vllth and VUIth Plenary Assemblies, have been retained. The Recommendations, Reports and Resolutions of a general nature are arranged in numerical order. The Questions and Study Programmes are grouped together and arranged in the numerical order of the Study Groups. For each Study Group the Questions are laid out in numerical order, each being followed by the Resolution(s) and Study Programme(s) to which they are related. Study Programmes which are not the result of a Question are indicated by a note. Questions submitted to the C.C.I.T.T. form the subject of a separate chapter. References to the texts, if any, forming the basis of Recommendations, Reports, Resolutions, Questions and Study Programmes are given below the title. On the right under this reference is shown the Plenary Assembly or Assemblies which have approved or subsequently modified the text. Mention is made in a footnote, when the occasion arises, of the texts or text which have been replaced by the text in question; in the case of a Question, the Study Programmes are shown which arise from it; and in the case of Study Programmes, mention has been made where necessary of the Questions to which they refer. To facilitate reference to a desired document, and to reduce the bulk of the bound edition, the previous Volume I has been divided into three: Volume I : Recommendations of the C.C.I.R. Volume II : Resolutions, Questions and Study Programmes of the C.C.I.R. Volume III: Reports of the C.C.I.R. Further to facilitate the tracing of a desired document, the Recommendations and Reports of the C.C.I.R., while retaining their serial numbering, have been grouped into ten sections desig­ nated by capital letters: A. Transmission F. Radio-relay systems B. Reception G. Propagation C. Fixed services H. Standard-frequencies and time signals D. Mobile services and space-systems J. International monitoring E. Sound broadcasting and television K. Vocabulary Definitions of the Recommendations, Reports, Resolutions, Questions and Study Programmes of the C.C.I.R. * The following definitions of Recommendations, Resolutions and Questions are those which appear in Doc. No. 272 of Geneva (Drafting Committee). The definition given for Study Program­ mes is that which appears in Doc. No. 630 of London (Drafting Committee). The definition given for Reports is that which appears in Doc. No. 731 of London (U.S.A.) modified by the addi­ tion of the words “ by a Study Group — 7 — Recommendation Statement issued when the study of a Question, or part of a Question, has been concluded. Report Statement for information, on the studies carried out by a Study Group on a given subject. Resolution Statement of an opinion of the C.C.I.R. on a non-technical subject. Question Statement of a technical problem which the C.C.I.R. is to consider. Study Programme Text describing the work to be done on a given technical problem forming the subject of a Question. Origin of certain documents referred to in these volumes The documents referred to in these volume as “ Stockholm ”, “ Geneva ”, “ London ”, “ Warsaw ” and “ Los Angeles ” are respectively the documents of the Vth, Vlth, Vllth, VUIth and IXth Plenary Assemblies of the C.C.I.R. held in Stockholm in 1948, Geneva in 1951, London in 1953, Warsaw in 1956 and Los Angeles in 1959. The documents referred to in these volumes as “ Mexico ” and “ Florence/Rapallo ”, are respectively those of the High-Frequency Broadcasting Conferences of Mexico City in 1948-49 and of Florence/Rapallo in 1950. Other documents referred to in these volumes are the documents of the meetings of certain Study Groups of the C.C.I.R. The following list of the meetings of these Study Groups is given for information: Zurich (July 1949) Study Group No. XI Washington (March 1950) Study Groups Nos. VI and X London (May 1950) Study Group No. XI Geneva (July 1950) Sub-Group Gerber of Study Group No. XI The Hague (April 1952) Study Groups Nos. I and III Stockholm (May 1952) Study Groups Nos. V, VI and XI Geneva (August 1952) Study Group No. X Geneva (September 1952) Study Group No. IX Brussels (March-April 1955) Study Groups Nos. I and XI Paris (July 1957) C.M.T.T. (Joint Study Group for television transmission) Geneva (December 1957) Sub-Group Lepechinsky Moscow (May-June 1958) Study Group No. XI Geneva (July-August 1958) Study Groups Nos. I, II, III, IV, V, VI, VII & IX Monte-Carlo (October 1958) C.M.T.T. Numbering of the Recommendations, Reports, Resolutions, Questions and Study Programmes of the C.C.I.R. The Recommendations, Reports, Resolutions, Questions and Study Programmes of the C.C.I.R. are numbered consecutively in five series, each starting at No. 1. The series of Recommendations, Questions and Resolutions were started at the Vth Plenary Assembly (Stockholm, 1948). The series of Reports and Study Programmes were started at the Vlth Plenary Assembly (Geneva 1951). Questions and Study Programmes remaining for study after the VUIth Plenary Assembly (Warsaw, 1956) carry in Roman