IEC IEC 61097-4 Edition 4.02024-02 COMMENTEDVERSION INTERNATIONAL STANDARD colour inside Global maritime distress and safety system (GMDSS) - Part 4: Inmarsat-C ship earth station and Inmarsat enhanced group call (EGC) equipment - Operational and performance requirements, methods of testing and required test results IEC61097-4:2024-02CMV(en) THIS PUBLICATION IS COPYRIGHT PROTECTED Copyright @ 2024 IEC, Geneva, Switzerland or by any means, electronic or mechanical, including photocopying and microfilm, without permission in writing from either IEC or IEC's member National Committee in the country of the requester. If you have any questions about IEC copyright or have an enquiry about obtaining additional rights to this publication, piease contact the address below or your local IEC member National Committee for further information. IEC Secretariat Tel.: +41 22 919 02 11 3,rue de Varembe [email protected] CH-1211Geneva 20 www.iec.ch Switzerland About the IEC International Standards for all electrical, electronic and related technologies. AboutIECpublications The technical content of IEC publications is kept under constant review by the IEC. Please make sure that you have the latest edition,a corrigendumoranamendment mighthavebeen published. IEC publications search - webstore.iec.ch/advsearchform IEc Products & Services Portal - products.iec.ch The advanced search enables to find IEC publications by a Discover our powerful search engine and read freely all the publications previews, graphical symbols and the glossary. varietyofcriteria(reference number,text, technical committee, ...). It also gives information on projects, replaced With a subscription you will always have access to up to date and withdrawn publications. content tailored to your needs. IEc Just Published - webstore.iec.ch/justpublished Electropedia-www.electropedia.org Stay up to date on all new IEC publications. Just Published The world's leading online dictionary on electrotechnology, details all new publications released.Available online and once containing more than 22 500 terminological entries in English a month by email. and French, with equivalent terms in 25 additional languages. Also known as the International Electrotechnical Vocabulary IECCustomerServiceCentre-webstore.iec.ch/csc (IEV) online If you wish to give us yourfeedback on this publication orneed further assistance, please contact the Customer Service Centre: [email protected]. IEC IEC 61097-4 Edition4.0 2024-02 COMMENTED VERSION INTERNATIONAL STANDARD colour inside Global maritime distress and safety system (GMDSS) - Part 4: Inmarsat-C ship earth station and Inmarsat enhanced group call (EGC) equipment - Operational and performance requirements, methods of testing and required test results INTERNATIONAL ELECTROTECHNICAL COMMISSION ICS47.020.70 ISBN 978-2-8322-8342-4 Warning! Make sure that you obtained this publication from an authorized distributor.