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Circular 70
Desirable Levels of Performance of Teletypewriter Personnel
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CIRCULAR Prepared by the Secretariat and published by authority of the Secretary General I INTERNATIONAL CIVIL AVlATlOW ORGAN IZATIOW MONTREAL CANADA DESIRABLE LEVELS OF PERFORMANCE OF TELETYPEWRITER PERSONNEL
Published in separate English, French and Spankh editionp by the lnternatibnul Civil Aoiation Organization. All correspondence, except orders and subscriptions, shouM be addressed to the Secretary General of ICAO, international Autation Building, 1080 UnioersihJ Street, Montreal 3 Quebec, Canada. Orders for thrs publcation should be sent to one of the followng addresses, together wcth the appropriate remttance by bank draft or post office money order rn U.S. dollars or the currency of the country in whch the order IS placed or in a freely convertible currency Regional Olces Sales Agencies France Reprksentant de I'OACI, Bureau Ar entina Editorial Sudarnericana S.A., Europe, 60 bls, avenue d'Ikna, Paris, XVIe. cafe AIsina 500, Buenos Aires. Peru Representante de la OACI, Oficina Australia Robertson and hddem, 107 Eli- SudarnCrica, Apartado 4127, Lima. zabeth Street, Melbourne, C. 1. Senegal Reprcsentunt de I'OACI. Bureau Canada Depament of public Printing Afrque. Boie postale 2356. Dakar. and Stationery, Ottawa Ontario. Thailand ICAO Representative, Far East India Oxford Book 6r Stationery Co., and Pacific Office, P.O. Box 614, Bangkok. Scindia House New Debi or 17 Park Street, Calcutta. United Arab Republic ICAO Represen- tative, iddl E office, 16 H sat,, Mexico Editorial Hermes S.A., Ignacio Zamalek, Cairo. Mariscal 41, Mbxico 4, D.F. New Zealand Government Printer, Govern- ment Printing Office, 20 Molesworth Street, Wellington. United Kingdom Her Majesty's Stationery Office, P.O. Box 589, London, S.E. 1. International Civil Aviation Organization Attention Distribution Officer, International Aviation Building, 1080 University Street, Montreal 3 Quebec, Canada. Do you receive the ICAO BULLETIN he ICAO Bulletin contains a concise account of the activities of the Organization as well as articles of interest to the aero- nautical world. The Bulletin will also keep you up to date on the bed ICAO publications, their contents, amendments, supplements, corri- genda, and prices. Available in hree separaio editions English, French and Spanish. Annual subscription U.S. 2.00.
TABLE OF CONTENTS Page CHAPTER 1 .. INTRODUCTION .......................................... 3 CHAPTER 2 .. BASIC CONSIDERATIONS .................................. 5 ............................................ 2.1 Outline of problem 5 ................................. 2 . 2 Automation of the fixed service 6 2 . 3 Automation of preparation of messages .......................... 6 ........................ 2.4 Developments in communications centres 7 ................................................... 2 . 5 Definitions 7 CHAPTER 3 . . TRAINING OF TELETYPEWRITER OPERATORS EMPLOYED IN THE PREPARATION AND ............................. TRANSMISSION OF MESSAGES 9 Selection and recruitment ...................................... 9 ......... Classroom instruction in the use of telegraphic equipment 9 Codes andabbreviations ....................................... 11 Messages normally routed on the AFTN ......................... 13 Message format standardized by ICAO for transmission on the AFTN ................................................ 14 Other formats used in the aeronautical fixed service if any ....... 15 Transfer to the AFTN of messages received in another formatandvice-versa ....................................... 15 Organization of the aeronautical telecommunications service ...... 15 . Practical instruction in keyboard typing ......................... 16 ........................................... Duration of courses 18 Final tests ................................................... 19 Marking of practical tests ...................................... 19 .............. CHAPTER 4 .. TELECOMMUNICATIONS CENTRE OPERATOR 25 .............................. 4 . 1 Method of recruitment and training 25 4.2 Classroomtraining ............................................ 26 4 . 3 Practical training ............................................. 27 .. ............................... CHAPTER 5 SUPERVISORY PERSONNEL 29 . 5 1 Responsibilities ............................................... 29 .................................................. 5.2 Recruitment 29
2 ICAO Circular 70-AN/62 Page ATTACHMENT L - A SUMMARY OF REPLIES FROM 23 STATES TO THE ICAO QUESTIONNAIRE ON CRITERIA FOR A DESIRABLE LEVEL OF PERFORMANCE FOR TELETYPEWRITER OPERATING PERSONNEL ............................. 3 1 ATTACHMENT 11. - TRAINING AIDS FOR TELETYPEWRITER OPERATING PERSONNEL. ......................................... 34 1. Posters ....................................................... 34 2. Hints on training posters.. ...................................... 34 3. List of publications ............................................ 48 ATTACHMENT 111. - A PRACTICAL METHOD FOR DETECTING MESSAGES REQUIRING THE ADDITION OF A SHORTENED ADDRESS IN ACCORDANCE WITH THE ROUTING RESPONSIBILITIES OF THE CENTRE ..................................... 49
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Table Of Contents
COVER PAGE
TABLE OF CONTENTS
CHAPTER 1.
CHAPTER 2.
CHAPTER 3.
CHAPTER 4.
CHAPTER 5.
ATTACHMENT I
ATTACHMENT II
ATTACHMENT III