1、 InternatIonal SafetyNET Manual2011 EditionLondon, 2011First published in 1994 by the INTERNATIONAL MARITIME ORGANIZATION 4 Albert Embankment, London SE1 7SR www.imo.orgThird edition 2011Printed and bound by CPI Group (UK) Ltd, Croydon, CR0 4YYISBN: 978-92-801-1533-8IMO PUBLICATIONSales number: IB90
2、8ECopyright International Maritime Organization 2011All 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 in writing from the International Maritime Organization.Reproduction and/or trans
3、lation 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 eliminate errors and reproduce the original text(s) faithfully. Readers should be
4、aware that, in case of inconsistency, the official IMO text will prevail.iiiContentsForeword . 11 General information 32 SafetyNET service 33 General features of the EGC system 144 Planning of new SafetyNET services 145 Changes to existing SafetyNET services 156 Operation of the International Safety
5、NET Service 157 Promulgation of maritime safety information 198 Message formatting and C codes 209 Monitoring of MSI broadcasts . 2210 Quality control of MSI broadcasts 2511 Accessing the SafetyNET service . 2812 Land Earth Station functions 2813 Receiving SafetyNET broadcasts . 2914 Charges for Saf
6、etyNET services 32Annex 1 International SafetyNET Co-ordinating Panel 33Annex 2 Authorization, certification and registration of SafetyNET information providers . 35Annex 3 The Inmarsat system 39Annex 4 Operational guidance . 41Part A Navigational warning services 45Part B Meteorological services .
7、47Part C Search and rescue services 49Part D Piracy countermeasures broadcast messages . 53Part E Repetition codes (C4) . 56Annex 5 EGC receiver specifications 61Annex 6 Procedure for amending the International SafetyNET Manual . 71Page1ForewordSOLAS regulation IV/12.2 states that “Every ship, while
8、 at sea, shall maintain a radio watch for broadcasts of maritime safety information on the appropri-ate frequency or frequencies on which such information is broadcast for the area in which the ship is navigating”.At the request of the IMO Sub-Committee on Radiocommunications, the International Safe
9、tyNET Manual was first produced in 1994. The second edition was published in 2003 containing amendments endorsed by the Maritime Safety Committee at its seventy-sixth session in December 2002 by MSC/Circ.1064.At its seventh meeting in September 2005, the IHOs Commission on the Promulgation of Radio
10、Navigational Warnings (CPRNW*) established a Working Group to review all World-Wide Navigational Warning Service (WWNWS) documentation. The Working Group included representation from the WMO and prepared at first, revisions to IMO resolutions A.705(17), “Promulgation of Maritime Safety Information”
11、and A.706(17), “World-Wide Navigational Warning Service”. The proposed revisions of the resolutions were circulated to IHO Member States under IHB CL 104/2007, endorsed by COMSAR at its twelfth session in April 2008 and subsequently approved by the Maritime Safety Committee at its eighty-fifth sessi
12、on in November/December 2008 by MSC.1/Circ.1287 and MSC.1/Circ.1288 respectively.The IHO CPRNW*Working Group then prepared the revised Joint IMO/IHO/WMO Manual on Maritime Safety Information incorporating the revised information from resolutions A.705(17), as amended and A.706(17), as amended. The r
13、evised text of the Joint IMO/IHO/WMO Manual on Maritime Safety Information was circulated to IHO Member States under cover of IHB CL 70/2008, endorsed by COMSAR at its thirteenth session in January 2009 and subsequently approved by the Maritime Safety Committee at its eighty-sixth session in May/Jun
14、e 2009 by MSC.1/Circ.1310.*CPRNW was renamed the IHO WWNWS Sub-Committee (WWNWS) with effect from 1 January 2009.International SafetyNET Manual2Continuing with the holistic approach of reviewing all the MSI documents from the top-down, the IHO WWNWS Working Group prepared the third revision of the I
15、nternational SafetyNET Manual. The revised text of the International SafetyNET Manual was circulated to IHO Member States under cover of IHB CL 68/2009, endorsed by COMSAR at its fourteenth session in March 2010 and subsequently approved by the Maritime Safety Committee at its eighty-seventh session
16、 in May 2010 by MSC.1/Circ.1364 and will come into force on 1 January 2012.31 General informationSafetyNET is an international automatic direct-printing satellite-based service for the promulgation of Maritime Safety Information (MSI), navigational and meteorological warnings, meteorological forecas
17、ts, Search and Rescue (SAR) information and other urgent safety-related messages to ships. It has been developed as a safety service of the Inmarsat-C Enhanced Group Call (EGC) system to provide a simple and automated means of receiving MSI on board ships at sea. The message-selection features of Sa
18、fetyNET receivers enable mariners to receive safety information broadcasts that are tailored to their particular needs.SafetyNET fulfils an integral role in the Global Maritime Distress and Safety System (GMDSS) developed by the International Maritime Organization (IMO) and incorporated into the 198
19、8 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.This Manual describes the structure and operation of the International SafetyNET Service. It is intended primarily for national Administrat
20、ions and registered information providers, but may also be useful to the mariner who requires more operational information than is found in manufacturers equipment manuals.2 SafetyNET service2.1 Introduction2.1.1 SafetyNET provides shipping with navigational and meteorological warnings, meteorologic
21、al forecasts, shore-to-ship distress alerts, SAR infor-mation and other urgent information in accordance with the requirements of the International Convention for the Safety of Life at Sea (SOLAS), 1974, as amended. It is suitable for use in all sizes and types of ships. Figure 1 illustrates the way
22、 the service is structured.2.1.2 SafetyNET is a service of Inmarsats EGC system and was specifically designed for promulgation of MSI as a part of the GMDSS. The EGC system (technically a part of the Inmarsat-C system) provides an automatic method of broadcasting messages to both fixed and variable
23、geographical areas. It is designed with the capability to provide services within the coverage areas of geostationary satellites, known as satellite ocean regions (approximately between 76nullN and 76nullS). In addition to providing services to ships operating International SafetyNET Manual4in sea a
24、rea A3, it also provides the means of disseminating MSI to coastal warning areas not covered by the International NAVTEX service.NavigationalwarningMeteorological informationSAR informationOther urgent safety-related informationMARITIME SAFETY INFORMATION (international and national co-ordination)IN
25、FORMATIONSERVICESBROADCAST SERVICESCO-ORDINATED BROADCAST SERVICESNAVAREA/ METAREASub-areaCoastal warning areaUser defined areaSatellite ocean regionOperator input optionsAdditional NAVAREA/METAREACoastal warning area (B1code)Coastal warning service (B2code)EGC receiver only modeFixed positionsRoute
26、ing of EGC messagesPrint decision for “Safety” priority messagesEGC SafetyNET receiverReception decodingAutomated functionsPosition comparisonRecognize additional areas: NAVAREA/METAREA User dened areaSuppress already received messagesPrint decision Inmarsat-C land earth stationInmarsat-C network co
27、-ordination stationINFORMATIONSERVICESBROADCAST SERVICESINFORMATIONSERVICESBROADCAST SERVICESFigure 1 The International SafetyNET Service systemInternational SafetyNET Manual5Data for SafetyNET broadcasts is prepared and submitted for transmission by: Registered information providersData for FleetNE
28、T broadcasts is prepared and submitted for transmission by: Shipping companies News services Other commercial information providersSpecific addressing for FleetNET: Selected ships Shipping company fleet Selected flagsArea addressing for SafetyNET: NAVAREA/METAREA Coastal warning area User dened area
29、 Satellite ocean regionFigure 2 Basic concept of the Inmarsat Enhanced Group Call system2.1.3 SafetyNET offers the ability to direct a message to a given geographical area. The area may be fixed, as in the case of a NAVAREA/METAREA or coastal warning area; or it may be a user defined area (circular
30、or rectangu-lar). A user defined area is used for messages, such as a local storm warning or a shore-to-ship distress alert, for which it is inappropriate to alert ships in an entire satellite ocean region or NAVAREA/METAREA. The general EGC system capabilities are shown in figure 2.2.1.4 SafetyNET
31、messages are submitted by registered information providers for broadcast to the appropriate satellite ocean region(s) via an Inmarsat-C Land Earth Station (LES). Messages are broadcast according to their prior-ity, i.e. distress, urgency or safety. Aboard ship, messages are received by type-approved
32、 Inmarsat-C or Mini-C mobile terminals with EGC SafetyNET capability.2.2 Definitions2.2.1 For the purposes of this manual, the following definitions apply:.1 Coastal warning means a navigational warning promulgated as part of a numbered series by a National co-ordinator. Broadcast shall be made by t
33、he International NAVTEX service to defined NAVTEX service areas and/or by the International SafetyNET service to coastal warning areas. (In addition, Administrations may issue coastal warnings by other means.)International SafetyNET Manual6.2 Coastal warning area means a unique and precisely defined
34、 sea area within a NAVAREA/METAREA or Sub-Area established by a coastal state for the purpose of co-ordinating the broadcast of coastal maritime safety information through the SafetyNET service.3 Enhanced Group Call (EGC) means the system for broadcast-ing messages via the mobile satellite communica
35、tions system operated by Inmarsat Global Limited. EGC is a part of the Inmarsat-C system and supports two services: SafetyNET and FleetNET.4 FleetNET means the commercial service for the broadcasting and automatic reception of fleet management and general public information by means of direct printi
36、ng through Inmarsats EGC system. Some receivers for FleetNET may not be able to receive SafetyNET.5 Global Maritime Distress and Safety System (GMDSS) means the global communications service based upon automated systems, both satellite and terrestrial, to provide distress alerting and promulgation o
37、f maritime safety information for mariners.6 HF NBDP means high frequency narrow-band direct-printing, using radio telegraphy as defined in Recommendation ITU-R M.688.7 In-force bulletin means a list of serial numbers of those NAVAREA, Sub-Area or coastal warnings in force issued and broadcast by th
38、e NAVAREA co-ordinator, Sub-Area co-ordinator or National co-ordinator during at least the previous six weeks.8 Inmarsat-B means the digital satellite communications system for transmission of voice, telex, facsimile or data using directional antennas. (Note: Inmarsat-B will be discontinued from 31
39、December 2014.).9 Inmarsat-C means the digital satellite communications system for store-and-forward text or data messaging using mobile terminals with omni-directional antennas. Inmarsat-C is the only system that allows ships to meet the majority of the satellite communication requirements of the G
40、MDSS including distress alerting, reception of maritime safety information and general communications.International SafetyNET Manual7.10 Inmarsat Mini-C means smaller terminals, based on the same technical requirements as Inmarsat-C terminals. Some models are approved as GMDSS compliant terminals.11
41、 Inmarsat Fleet means the digital satellite communication system that provides voice and flexible data communication services, e-mail and secure internet access for maritime users, comprising a family of Fleet F77, F55 and F33 mobile terminals. The Inmarsat Fleet F77 system provides voice distress a
42、nd safety functionality and meets the requirements of IMO resolution A.1001(25).12 Inmarsat FleetBroadband means the communication service that provides voice and high-speed data services, simultaneously, through compact terminals for maritime users.13 International NAVTEX service means the co-ordin
43、ated broadcast and automatic reception on 518 kHz of maritime safety informa-tion by means of narrow-band direct-printing telegraphy using the English language.*.14 International SafetyNET service means the co-ordinated broad-casting and automated reception of maritime safety information via the Inm
44、arsat Enhanced Group Call (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.15 Land Earth Station (LES) means a fixed terrestrial station acting as a gateway between terrestrial communication ne
45、tworks and the Inmarsat satellites in the maritime mobile-satellite service. This may also be referred to as a Coast Earth Station (CES).16 Land Earth Station Operator (LESO) means an Inmarsat service provider which owns and operates the LES.17 Local warning means a navigational warning which covers
46、 inshore waters, often within the limits of jurisdiction of a harbour or port authority.18 Maritime safety information (MSI)nullmeans navigational and meteorological warnings, meteorological forecasts and other urgent safety-related messages broadcast to ships.*As set out in the IMO NAVTEX Manual.nu
47、llAs defined in Regulation IV/2 of the 1974 SOLAS Convention, as amended.International SafetyNET Manual8.19 Maritime safety information service means the internationally and nationally co-ordinated network of broadcasts containing information which is necessary for safe navigation.20 METAREA means a
48、 geographical sea area*established for the purpose of co-ordinating the broadcast of marine meteorological information. The term METAREA followed by a roman numeral may be used to identify a particular sea area. The delimitation of such areas is not related to and shall not prejudice the delimita-ti
49、on of any boundaries between States (see figure 4).21 METAREA issuing service means the National Meteorological Service which has accepted responsibility for ensuring that meteorological forecasts and warnings are disseminated through the Inmarsat SafetyNET service to the designated METAREA or other area.22 Meteorological information means the marine meteorological warning and forecast information in accordance with the provi-sions of the International Conventi
