IMO ID951E-2012 Navtex Manual (Fifth Edition).pdf

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1、IMOID951EID951Ewww.imo.orgNAVTEX is an international automated direct-printing service for promulgation of navigational and meteorological warnings and other urgent information to ships. It is one of the two principle methods used for broadcasting maritime safety information in accordance with the p

2、rovisions of the International Convention for the Safety of Life at Sea, 1974, as amended. It has been developed to provide a low-cost, simple and automated means of receiving maritime safety information and Search and Rescue alerts on board ships at sea and in coastal waters. The information transm

3、itted may be relevant to all sizes and types of vessel and the selective message-rejection feature ensures that every mariner can receive safety information broadcasts which are relevant to their voyage.This manual is intended, primarily, for use by maritime Administrations and others concerned with

4、 the preparation and broadcasting of maritime safety information. It will also be of interest to seafarers, shipowners and others who need to receive such information in order to safely go about their business at sea.This fi fth edition includes a number of amendments which refl ect the recent updat

5、es to the Joint IMO/IHO/WMO Manual on Maritime Safety Information. The defi nitions have been extensively expanded, along with the technical explanations of the “B” characters which make up the alphanumeric code of each NAVTEX message. New sections include examples of navigational warnings and meteo

6、rological messages, responsibilities of a NAVTEX Co-ordinator and mutual interference between NAVTEX stations. 2012 EDITION2012 EDITIONLondon, 2012First published in 1988 by the INTERNATIONAL MARITIME ORGANIZATION 4 Albert Embankment, London SE1 7SR www.imo.orgFifth edition 2012Printed by CPI Group

7、(UK) Ltd, Croydon, CR0 4YYISBN: 978-92-801-1562-8IMO PUBLICATIONSales number: ID951ECopyright International Maritime Organization 2012All rights reserved. No part of this publication may be reproduced, stored in a retrieval system, or transmitted in any form or by any means, without prior permission

8、 in writing from the International Maritime Organization.Reproduction and/or translation rights may be available for this title. For further details please contact IMO Publishing at copyrightimo.org.This publication has been prepared from official documents of IMO, and every effort has been made to

9、eliminate errors and reproduce the original text(s) faithfully. Readers should be aware that, in case of inconsistency, the official IMO text will prevail.iiiContentsForeword . v1 General information. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12 NAVTEX service . 13 General feat

10、ures of the NAVTEX system 104 Planning NAVTEX services 115 NAVTEX message technical characters. . . . . . . . . . . . . . . . . . . 156 Message identity . 207 Message format 218 Language and national broadcast options . 269 Information control . 2610 Message content . 2611 Message priorities and bro

11、adcast procedures in the International NAVTEX service . 2912 Responsibilities of a NAVTEX Co-ordinator . 3113 Best practice for those using the service 3414 Mutual interference between NAVTEX stations 3415 Notification of NAVTEX services . 36Annex 1 IMO NAVTEX Co-ordinating Panel terms of reference

12、. 37Annex 2 Recommendation ITU-R M.540 Operational and technical characteristics for an automated direct-printing telegraph system for promulgation of navigational and meteorological warnings and urgent information to ships . 39PageNAVTEX ManualivAnnex 3 Resolution MSC.148(77) Adoption of the revise

13、d performance standards for narrow-band direct-printing telegraph equipment for the reception of navigational and meteorological warnings and urgent information to ships (NAVTEX) 45Annex 4 Resolution A.801(19), annex 4 Criteria for use when providing a NAVTEX service . 51Annex 5 Procedure for amendi

14、ng the NAVTEX Manual 53PagevForewordSOLAS regulation IV/12.2 states that “Every ship, while at sea, shall maintain a radio watch for broadcasts of maritime safety information on the appropriate frequency or frequencies on which such information is broadcast for the area in which the ship is navigati

15、ng”.At the request of the IMO Sub-Committee on Radiocommunications, the NAVTEX Manual was first produced in 1988. Three subsequent editions have been produced, with the fourth edition published in 2005 containing amendments endorsed by the Maritime Safety Committee at its seventy-eighth session in M

16、ay 2004 by MSC/Circ.1122.At its seventh meeting in September 2005, the IHO Commission on the Promul-gation of Radio Navigational Warnings (CPRNW)*established a Working Group to review all World-Wide Navigational Warning Service (WWNWS) documen-tation. The Working Group included representation from t

17、he WMO and firstly prepared revisions to IMO resolutions A.705(17), Promulgation of Maritime Safety Information and A.706(17), World-Wide Navigational Warning Service. The proposed revisions of these resolutions were circulated to IHO Member States under IHB CL 104/2007, endorsed by COMSAR at its tw

18、elfth session in April 2008 and subsequently approved by the Maritime Safety Committee at its eighty-fifth session in November/December 2008 by MSC.1/Circ.1287 and MSC.1/Circ.1288 respectively.The Working Group then prepared the revised Joint IMO/IHO/WMO Manual on Maritime Safety Information incorpo

19、rating the revised information from resolutions A.705(17), as amended, and A.706(17), as amended. The revised text was circulated to IHO Member States under cover of IHB CL 70/2008, endorsed by COMSAR at its thirteenth session in January 2009 and subse-quently approved by the Maritime Safety Committ

20、ee at its eighty-sixth session in May/June 2009.The Working Group subsequently prepared the third revision of the Inter-national SafetyNET Manual. The revised text of the International SafetyNET *CPRNW was renamed the IHO WWNWS Sub Committee (WWNWS) with effect from 1 January 2009.NAVTEX ManualviMan

21、ual was circulated to IHO Member States under cover of IHB CL 68/2009, endorsed by COMSAR at its fourteenth session in March 2010 and approved by the Maritime Safety Committee at its eighty-seventh session in May 2010 by MSC.1/Circ.1364.Continuing with the holistic approach of reviewing all maritime

22、 safety informa-tion documents from the top-down, the Working Group prepared the fifth revision of the NAVTEX Manual. The revised text of the NAVTEX Manual was circulated to IHO Member States under cover of IHB CL 74/2010, endorsed by COMSAR at its fifteenth session in March 2011 and subsequently ap

23、proved by the Maritime Safety Committee at its eighty-ninth session in May 2011 by MSC.1/Circ.1403.The Maritime Safety Committee decided that the revised text of the NAVTEX Manual will come into force on 1 January 2013.11 General information1.1 NAVTEX is an international automated direct-printing se

24、rvice for promulgation of navigational and meteorological warnings, meteorological forecasts and other urgent information to ships. It was developed to provide a low-cost, simple and automated means of receiving maritime safety infor-mation on board ships at sea in coastal waters. The information tr

25、ansmitted may be relevant to all sizes and types of vessel and the selective message-rejection feature ensures that mariners can receive a safety information broadcast which is tailored to their particular needs.1.2 NAVTEX fulfils an integral role in the Global Maritime Distress and Safety System (G

26、MDSS) developed by the International Maritime Organiza-tion (IMO) and incorporated into the 1988 amendments to the International Convention for the Safety of Life at Sea (SOLAS), 1974, as amended, as a requirement for ships to which the Convention applies.1.3 This Manual describes the structure and

27、operation of the NAVTEX service. It is intended primarily for use by Maritime Administrations and others concerned with the preparation and broadcasting of maritime safety informa-tion. It will also be of interest to seafarers, shipowners and others who need to receive such information in order to s

28、afely go about their business at sea. It should be used in conjunction with the Joint IMO/IHO/WMO Manual on Maritime Safety Information (also published as the IHO/IMO World-Wide Navigational Warning Service Guidance Document, IHO Publication S-53, and S-53 Appendix 1).2 NAVTEX service2.1 Introductio

29、n2.1.1 NAVTEX provides shipping with navigational and meteorological warnings, meteorological forecasts and other urgent information (as listed in table 1, section 5) by automatic display or printout from a dedicated receiver. It is suitable for use in all sizes and types of ships. Figure 1 illustra

30、tes the way the service is typically structured.NAVTEX Manual2Figure 1 Basic concept of the NAVTEX system2.1.2 NAVTEX is a component of the IMO/IHO World-Wide Naviga-tional Warning Service (WWNWS) defined by IMO Assembly resolution A.706(17), as amended, and the WMO Manual on Marine Meteorological S

31、ervices, Part 1bis, Provision of warnings and weather and sea bulletins (GMDSS application). It has also been included as an element of the Global Maritime Distress and Safety System (GMDSS).NAVIGATIONALWARNINGSARINFORMATIONMETEOROLOGICALINFORMATIONNAVTEX CO-ORDINATORNAVTEX STATIONOPERATOR SELECTION

32、OTHER URGENTSAFETY-RELATEDINFORMATIONSelect transmitteridentification characterSuppress optionalmessage subjects not requiredINFORMATION PROVIDERS(e.g., Hydrographic office, Meteorological office, RCC)NAVTEX RECEIVER AUTOMATIC FUNCTIONSDedicated display deviceand/or printerAssess signal qualityCompa

33、re with memoryReject incompletemessages and suppressed message typesNAVTEX Manual32.1.3 In the GMDSS, a NAVTEX receiving capability is part of the manda-tory equipment which is required to be carried in certain vessels under the provisions of the International Convention for the Safety of Life at Se

34、a (SOLAS), 1974, as amended.2.1.4 Authority for co-ordinating the use of the frequencies 518 kHz, 490 kHz and 4209.5 kHz for NAVTEX services worldwide was effectively delegated by ITU to IMO at WRC-95 through Resolution 339. This was reaffirmed at WRC-97. IMO has vested responsibility for the overal

35、l manage-ment and co-ordination of the global NAVTEX services in its Co-ordinating Panel on NAVTEX Services. The co-ordination function of the panel with respect to National NAVTEX broadcasts on 490 kHz and 4209.5 kHz is limited to the allocation of transmission identification characters.*The Terms

36、of Reference for this panel are attached at annex 1. It shall be noted that the provisions of the NAVTEX Manual do not apply when planning a national NAVTEX service on other nationally assigned frequencies.2.1.5 Details of operational and planned NAVTEX services are published periodically in the var

37、ious national lists of radio signals, in an annex to the International Telecommunication Unions (ITU) List IV List of coast stations and special service stations, and in the GMDSS Master Plan published by IMO in its series of GMDSS Circulars.2.2 Definitions2.2.1 For the purposes of this Manual, the

38、following definitions apply:.1 Coastal warning means a navigational warning or in-force bulletin promulgated as part of a numbered series by a National co-ordinator. Broadcast shall be made by the International NAVTEX service to defined NAVTEX service areas and/or by the International SafetyNET serv

39、ice to coastal warning areas. (In addition, Administrations may issue coastal warnings by other means).2 Coastal warning area means a unique and precisely defined sea area within a NAVAREA/METAREA or Sub-Area estab-lished by a coastal State for the purpose of co-ordinating the broadcast of coastal m

40、aritime safety information through the SafetyNET service.*The transmitter identification character is a single letter allocated to each transmit-ter to identify the NAVTEX station and broadcast times.NAVTEX Manual4.3 Global Maritime Distress and Safety System (GMDSS) means the global communications

41、service based upon automated systems, both satellite and terrestrial, to provide distress alerting and promulgation of maritime safety information for mariners.4 HF NBDP means High Frequency Narrow-Band Direct-Print-ing, using radio telegraphy as defined in Recommendation ITU-R M.688.5 In-force bull

42、etin means a list of serial numbers of those NAVAREA, Sub-Area or coastal warnings in force issued and broadcast by the NAVAREA Co-ordinator, Sub-Area Co-ordinator or National Co-ordinator during at least the previous six weeks.6 International NAVTEX service means the co-ordinated broadcast and auto

43、matic reception on 518 kHz of maritime safety information by means of narrow-band direct-printing telegraphy using the English language.*.7 International SafetyNET service means the co-ordinated broadcasting and automated reception of maritime safety information via the Inmarsat Enhanced Group Call

44、(EGC) system, using the English language, in accordance with the provisions of the International Convention for the Safety of Life at Sea, 1974, as amended.8 Local warning means a navigational warning which covers inshore waters, often within the limits of jurisdiction of a harbour or port authority

45、.9 Maritime safety information (MSI)means navigational and meteorological warnings, meteorological forecasts and other urgent safety-related messages broadcast to ships.10 Maritime safety information service means the internationally and nationally co-ordinated network of broadcasts contain-ing info

46、rmation which is necessary for safe navigation.11 METAREA means a geographical sea areaestablished for the purpose of co-ordinating the broadcast of marine meteoro-logical information. The term METAREA followed by a roman numeral may be used to identify a particular sea area. The * As set out in thi

47、s Manual.As defined in regulation IV/2 of the 1974 SOLAS Convention, as amended.Which may include inland seas, lakes and waterways navigable by seagoing ships.NAVTEX Manual5delimitation of such areas is not related to and shall not preju-dice the delimitation of any boundaries between States.12 META

48、REA issuing service means the National Meteorological Service which has accepted responsibility for ensuring that meteorological forecasts and warnings for shipping are disseminated through the international SafetyNET and NAVTEX services to the designated area for which the Service has accepted resp

49、onsibility under the broadcast requirements of the GMDSS.*.13 Meteorological information means the marine meteorologi-cal warning and forecast information in accordance with the provisions of the International Convention for the Safety of Life at Sea, 1974, as amended.14 National Co-ordinator means the national authority charged with collating and issuing coastal warnings within a national area of responsibility.15 National NAVTEX service means the broadcast and automatic reception of maritime safety information by means of narrow-band direct-printing telegraphy