IEC 61097-4:2012

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

IEC 61097-4:2012

Name:IEC 61097-4:2012   Standard name: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
Standard number:IEC 61097-4:2012   language:English language
Release Date:26-Jun-2019   technical committee:TC 80 - Maritime navigation and radiocommunication equipment and systems
Drafting committee:WG 8 - TC 80/WG 8   ICS number:01 - GENERALITIES. TERMINOLOGY. STANDARDIZATION. DOCUMENTATION

IEC 61097-4
Edition 3.0 2012-05
INTERNATIONAL
STANDARD
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


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,
please contact the address below or your local IEC member National Committee for further information.

IEC Central Office Tel.: +41 22 919 02 11
3, rue de Varembé Fax: +41 22 919 03 00
CH-1211 Geneva 20 [email protected]
Switzerland
About the IEC
The International Electrotechnical Commission (IEC) is the leading global organization that prepares and publishes
International Standards for all electrical, electronic and related technologies.

About IEC publications
The technical content of IEC publications is kept under constant review by the IEC. Please make sure that you have the
latest edition, a corrigenda or an amendment might have been published.

Useful links:
IEC publications search - /searchpub Electropedia - www.electropedia.org
The advanced search enables you to find IEC publications The world's leading online dictionary of electronic and
by a variety of criteria (reference number, text, technical electrical terms containing more than 30 000 terms and
committee,…). definitions in English and French, with equivalent terms in
It also gives information on projects, replaced and additional languages. Also known as the International
withdrawn publications. Electrotechnical Vocabulary (IEV) on-line.

IEC Just Published - webstore.iec.ch/justpublished Customer Service Centre - webstore.iec.ch/csc
Stay up to date on all new IEC publications. Just Published If you wish to give us your feedback on this publication
details all new publications released. Available on-line and or need further assistance, please contact the
also once a month by email. Customer Service Centre: [email protected].

IEC 61097-4
Edition 3.0 2012-05
INTERNATIONAL
STANDARD
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
PRICE CODE
U
ICS 47.020.70 ISBN 978-2-83220-108-4

– 2 – 61097-4 © IEC:2012(E)
CONTENTS
FOREWORD . 4
1 Scope . 6
2 Normative references . 6
3 Performance requirements . 7
3.1 Overview . 7
3.2 Non-operational requirements . 8
3.2.1 General . 8
3.2.2 Warning of radiation hazard . 8
3.2.3 Power supply changeover . 8
3.3 Operational requirements for ship earth stations . 8
3.3.1 Capabilities . 8
3.3.2 Ship station identity . 8
3.3.3 Distress alerting . 8
3.3.4 Position updating . 9
3.4 Operational requirements for EGC receivers . 9
3.4.1 Capabilities . 9
3.4.2 General . 10
3.4.3 Position and area code updating . 10
3.4.4 Indication of receipt of priority message . 10
3.4.5 Indication of tuning and synchronisation . 10
3.4.6 Printing selection . 11
3.4.7 Printing device . 11
3.5 Performance related requirements from IEC 60945 . 11
3.6 Other requirements . 11
3.7 Long-range identification and tracking . 12
3.7.1 General . 12
3.7.2 Capabilities . 12
3.7.3 Functionality . 13
3.7.4 Communication system . 14
4 Technical characteristics . 14
4.1 Overview . 14
4.2 Environmental and electromagnetic compatibility requirement . 14
4.3 Radiated spurious emissions . 15
5 Methods of testing and required test results . 15
5.1 Overview . 15
5.1.1 General . 15
5.1.2 Performance requirements . 15
5.1.3 Technical characteristics . 16
5.2 Tests of non-operational requirements . 16
5.3 Tests of operational requirements for ship earth stations . 16
5.3.1 Capabilities . 16
5.3.2 Ship station identity . 16
5.3.3 Distress alerting . 16
5.3.4 Position updating . 16
5.4 Tests of operational requirements for EGC receivers . 17

61097-4 © IEC:2012(E) – 3 –
5.4.1 Capabilities . 17
5.4.2 General . 17
5.4.3 Position and area code updating . 17
5.4.4 Indication of receipt of priority message . 17
5.4.5 Indication of tuning and synchronisation . 17
5.4.6 Printing selection . 18
5.4.7 Printing device . 18
5.5 Tests of performance related requirements from IEC 60945 . 18
5.6 Tests of other requirements . 18
5.7 Long-range identification and tracking . 18
5.7.1 General . 18
5.7.2 Capabilities . 18
5.7.3 Functionality . 19
5.7.4 Communication system . 19
5.8 Tests of technical characteristics . 20
5.8.1 Inmarsat tests . 20
5.8.2 Tests for environmental and electromagnetic compatibility . 20
Annex A (normative) Requirements relating to installation . 21
Annex B (normative) Radiated unwanted emissions . 22
Annex C (informative) Inmarsat RTP schedule of tests. 25
Bibliography . 29

Table 1 – Data to be transmitted from the shipborne equipment . 14
Table 2 – Environmental conditions . 15
Table B.1 – Limits of unwanted emissions up to 1 000 MHz . 22
Table B.2 – Limits of unwanted emissions above 1 000 MHz . 23
Table B.3 – Limits of unwanted emission within the operating band with carrier-on . 24
Table C.1 – Phase I Inmarsat-C schedule of tests . 25
Table C.2 – Phase I EGC receiver schedule of tests . 27
Table C.3 – Phase II schedule of tests . 28

– 4 – 61097-4 © IEC:2012(E)
INTERNATIONAL ELECTROTECHNICAL COMMISSION
____________
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

FOREWORD
1) The International Electrotechnical Commission (IEC) is a worldwide organization for standardization comprising
all national electrotechnical committees (IEC National Committees). The object of IEC is to promote
international co-operation on all questions concerning standardization in the electrical and electronic fields. To
this end and in addition to other activities, IEC publishes International Standards, Technical Specifications,
Technical Reports, Publicly Available Specifications (PAS) and Guides (hereafter referred to as “IEC
Publication(s)”). Their preparation is entrusted to technical committees; any IEC National Committee interested
in the subject dealt with may participate in this preparatory work. International, governmental and non-
governmental organizations liaising with the IEC also participate in this preparation. IEC collaborates closely
with the International Organization for Standardization (ISO) in accordance with conditions determined by
agreement between the two organizations.
2) The formal decisions or agreements of IEC on technical matters express, as nearly as possible, an international
consensus of opinion on the relevant subjects since each technical committee has representation from all
interested IEC National Committees.
3) IEC Publications have the form of recommendations for international use and are accepted by IEC National
Committees in that sense. While all reasonable efforts are made to ensure that the technical content of IEC
Publications is accurate, IEC cannot be held responsible for the way in which they are used or for any
misinterpretation by any end user.
4) In order to promote international uniformity, IEC National Committees undertake to apply IEC Publications
transparently to the maximum extent possible in their national and regional publications. Any divergence
between any IEC Publication and the corresponding national or regional publication shall be clearly indicated in
the latter.
5) IEC itself does not provide any attestation of conformity. Independent certification bodies provide conformity
assessment services and, in some areas, access to IEC marks of conformity. IEC is not responsible for any
services carried out by independent certification bodies.
6) All users should ensure that they have the latest edition of this publication.
7) No liability shall attach to IEC or its directors, employees, servants or agents including individual experts and
members of its techn
...

  • Relates Information
  • ISO 8130-9:1992

    ISO 8130-9:1992 - Coating powders
    09-28
  • EN 352-2:2020/FprA1

    EN 352-2:2021/oprA1:2023
    09-28
  • IEC TS 61158-4:1999

    IEC TS 61158-4:1999 - Digital data communications for measurement and control - Fieldbus for use in industrial control systems - Part 4: Data Link protocol specification Released:3/24/1999 Isbn:2831847656
    09-28
  • HD 566 S1:1990

    HD 566 S1:1998
    09-28
  • ISO 5131:1982/Amd 1:1992

    ISO 5131:1982/Amd 1:1992
    09-28
  • EN 60598-2-22:1990

    EN 60598-2-22:1996
    09-27
  • ISO 8504-2:1992

    ISO 8504-2:1992 - Preparation of steel substrates before application of paints and related products -- Surface preparation methods
    09-27
  • EN 12165:2024

    prEN 12165:2022
    09-27
  • IEC TS 61158-6:1999

    IEC TS 61158-6:1999 - Digital data communications for measurement and control - Fieldbus for use in industrial control systems - Part 6: Application Layer protocol specification Released:3/24/1999 Isbn:2831847613
    09-27
  • ISO 4252:1992

    ISO 4252:1992 - Agricultural tractors -- Operator's workplace, access and exit -- Dimensions
    09-27