IEC 61108-4:2004

Maritime navigation and radiocommunication equipment and systems - Global navigation satellite systems (GNSS) - Part 4: Shipborne DGPS and DGLONASS maritime radio beacon receiver equipment - Performance requirements, methods of testing and required test results

IEC 61108-4:2004 specifies the minimum operational and performance requirements, methods of testing and required test results conforming to performance standards not inferior to those adopted by the IMO in resolution MSC.114(73). It takes into account IMO resolution A.694(17) and is associated with IEC 60945.

Matériels et systèmes de navigation et de radiocommunication maritimes - Système mondial de navigation par satellite (GNSS) - Partie 4: Equipement pour récepteur de balises radioélectriques DGLONASS et DGPS embarqués - Exigences d'exploitation et de fonctionnement, méthodes d'essai et resultats d'essai exigés

L'IEC 61108-4:2004 spécifie les exigences d'exploitation et de fonctionnement minimales, les méthodes d essai et les résultats d'essai exigés conformément aux normes de performances qui ne sont pas inférieurs à ceux adoptés par l'IMO dans la résolution MSC.114(73). De plus, elle prend en compte la résolution OMI A.694(17) et est associée à l'IEC 60945.

General Information

• Status: Published
• Publication Date: 18-Jul-2004
• ICS: 01 - GENERALITIES. TERMINOLOGY. STANDARDIZATION. DOCUMENTATION
• ICS: 47.020.70 - Navigation and control equipment
• Technical Committee: TC 80 - Maritime navigation and radiocommunication equipment and systems
• Drafting Committee: WG 4A - TC 80/WG 4A
• Current Stage: PPUB - Publication issued
• Start Date: 31-Aug-2004
• Completion Date: 19-Jul-2004

Standards Content (Sample)

INTERNATIONAL IEC
STANDARD 61108-4
First edition
2004-07
Maritime navigation and radiocommunication
equipment and systems –
Global navigation satellite systems (GNSS) –
Part 4:
Shipborne DGPS and DGLONASS maritime
radio beacon receiver equipment –
Performance requirements, methods of
testing and required test results
Reference number
Publication numbering
As from 1 January 1997 all IEC publications are issued with a designation in the
60000 series. For example, IEC 34-1 is now referred to as IEC 60034-1.
Consolidated editions
The IEC is now publishing consolidated versions of its publications. For example,
edition numbers 1.0, 1.1 and 1.2 refer, respectively, to the base publication, the
base publication incorporating amendment 1 and the base publication incorporating
amendments 1 and 2.
Further information on IEC publications
The technical content of IEC publications is kept under constant review by the IEC,
thus ensuring that the content reflects current technology. Information relating to
this publication, including its validity, is available in the IEC Catalogue of
publications (see below) in addition to new editions, amendments and corrigenda.
Information on the subjects under consideration and work in progress undertaken
by the technical committee which has prepared this publication, as well as the list
of publications issued, is also available from the following:
• IEC Web Site (www.iec.ch)
• Catalogue of IEC publications
The on-line catalogue on the IEC web site (www.iec.ch/searchpub) enables you to
search by a variety of criteria including text searches, technical committees
and date of publication. On-line information is also available on recently issued
publications, withdrawn and replaced publications, as well as corrigenda.
• IEC Just Published
This summary of recently issued publications (www.iec.ch/online_news/ justpub)
is also available by email. Please contact the Customer Service Centre (see
below) for further information.
• Customer Service Centre
If you have any questions regarding this publication or need further assistance,
please contact the Customer Service Centre:

Email: [e-mail]
Tel: [phone]
Fax: [phone]
INTERNATIONAL IEC
STANDARD 61108-4
First edition
2004-07
Maritime navigation and radiocommunication
equipment and systems –
Global navigation satellite systems (GNSS) –
Part 4:
Shipborne DGPS and DGLONASS maritime
radio beacon receiver equipment –
Performance requirements, methods of
testing and required test results
© IEC 2004 ⎯ Copyright - all rights reserved
No part of this publication may be reproduced or utilized in any form or by any means, electronic or
mechanical, including photocopying and microfilm, without permission in writing from the publisher.
International Electrotechnical Commission, 3, rue de Varembé, PO Box 131, CH-1211 Geneva 20, Switzerland
Telephone: [phone] Telefax: [phone] E-mail: [e-mail] Web: www.iec.ch
PRICE CODE
Commission Electrotechnique Internationale W
International Electrotechnical Commission
ɆɟɠɞɭɧɚɪɨɞɧɚɹɗɥɟɤɬɪɨɬɟɯɧɢɱɟɫɤɚɹɄɨɦɢɫɫɢɹ
For price, see current catalogue

– 2 – 61108-4 © IEC:2004(E)
CONTENTS
FOREWORD.4
1 Scope.6
2 Normative references .6
3 Terms, definitions and abbreviations .7
3.1 Definitions .7
3.2 Abbreviations .7
4 Performance requirements .7
4.1 Introduction .7
4.2 Composition .8
4.3 Functional requirements .8
4.4 Protection.9
4.5 Integrity.9
4.6 Interfaces .10
4.7 IEC 61162-1, IEC 61162-2 implementation .10
4.8 IEC 61162-3 implementation .10
4.9 Display and control.10
4.10 Installation .10
5 Technical characteristics .11
5.1 Carrier frequency .11
5.2 Frequency tolerance.11
5.3 Message types .11
5.4 Data transmission rate .11
5.5 Dynamic range .11
5.6 Maximum bit error ratio .11
5.7 Receiver selectivity and stability.11
5.8 Automatic frequency selection.12
5.9 Protection ratios .12
6 Methods of testing and required test results .13
6.1 General conditions of measurement and test signals .13
6.2 Operational tests .14
6.3 Protection of external connections.18
6.4 Integrity.18
6.5 Technical tests .18
6.6 Additional functionality tests .20
Annex A (normative) Simulation of noise situations for the test of shipborne DGPS
maritime radio beacon receiver equipment.21
A.1 Parameters describing noise .21
A.2 Noise models .22
A.3 Test procedures .26
Annex B (informative)  Methodology for measuring WER .27
B.1 Recording the RTCM data stream.27
B.2 Analysing the RTCM data stream .27
B.3 Caution .27

61108-4 © IEC:2004(E) – 3 –
Annex C (normative) Tests that are specific to integrated equipment that does not
provide an output port for testing.30
C.1 General requirements .30
C.2 Test of WER display .30
C.3 Comments to Clause 6, methods of testing.30
Annex D (informative) Installation guidelines to counteract the effect of interference .31
D.1 Introduction .31
D.2 Antennas .31
D.3 General installation requirements .32
D.4 Noise/interference sources .34
D.5 Testing .34
D.6 Troubleshooting.35
Annex E (informative) Implementation using a concurrent process.36
Annex F (informative) Data interface guidance.38
Bibliography.39
Figure A.1 – Generating atmospherics according to Feldman.24
Figure A.2 – Test set-up using a PC to program a waveform synthesizer .26
Figure B.1 – Word error rate algorithm (first part) .28
Figure B.2 – Word error rate algorithm (second part) .29
Figure E.1 – Station status update .36
Figure E.2 – Navigation process .37
Table 1 – Message types (M823/1.2) .11
Table 2 – Protection ratios .12
Table A.1 – Parameters for different interference situations .23
Table A.2 – Characteristic parameters of the simulated situations.25
Table D.1 – Troubleshooting conditions .35

– 4 – 61108-4 © IEC:2004(E)
INTERNATIONAL ELECTROTECHNICAL COMMISSION
____________
MARITIME NAVIGATION AND RADIOCOMMUNICATION
EQUIPMENT AND SYSTEMS –
GLOBAL NAVIGATION SATELLITE SYSTEMS (GNSS) –
Part 4: Shipborne DGPS and DGLONASS maritime
radio beacon receiver equipment –
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 provides no marking procedure to indicate its approval and cannot be rendered responsible for any
equipment declared to be in conformity with an IEC Publication.
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 technical committees and IEC National Committees for any personal injury, property damage or
other damage of any nature whatsoever, whether direct or indirect, or for costs (including legal fees) and
expenses arising out of the publication, use of, or reliance upon, this IEC Publication
...

IEC 61108-4 ®
Edition 1.0 2004-07
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
Maritime navigation and radiocommunication equipment and systems – Global
navigation satellite systems (GNSS) –
Part 4: Shipborne DGPS and DGLONASS maritime radio beacon receiver
equipment – Performance requirements, methods of testing and required test
results
Matériels et systèmes de navigation et de radiocommunication maritimes –
Système mondial de navigation par satellite (GNSS) –
Partie 4: Equipement pour récepteur de balises radioélectriques DGLONASS et
DGPS embarqués – Exigences d'exploitation et de fonctionnement, méthodes
d'essai et résultats d'essai exigés

All rights reserved. Unless otherwise specified, no part of this publication may be reproduced or utilized in any form
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, please contact the address below or
your local IEC member National Committee for further information.

Droits de reproduction réservés. Sauf indication contraire, aucune partie de cette publication ne peut être reproduite
ni utilisée sous quelque forme que ce soit et par aucun procédé, électronique ou mécanique, y compris la photocopie
et les microfilms, sans l'accord écrit de l'IEC ou du Comité national de l'IEC du pays du demandeur. Si vous avez des
questions sur le copyright de l'IEC ou si vous désirez obtenir des droits supplémentaires sur cette publication, utilisez
les coordonnées ci-après ou contactez le Comité national de l'IEC de votre pays de résidence.

IEC Central Office Tel.: [phone]
3, rue de Varembé Fax: [phone]
CH-1211 Geneva 20 [e-mail]
Switzerland www.iec.ch
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.

IEC Catalogue - webstore.iec.ch/catalogue Electropedia - www.electropedia.org
The stand-alone application for consulting the entire The world's leading online dictionary of electronic and
bibliographical information on IEC International Standards, electrical terms containing more than 30 000 terms and
Technical Specifications, Technical Reports and other definitions in English and French, with equivalent terms in 14
documents. Available for PC, Mac OS, Android Tablets and additional languages. Also known as the International
iPad. Electrotechnical Vocabulary (IEV) online.

IEC publications search - www.iec.ch/searchpub IEC Glossary - std.iec.ch/glossary
The advanced search enables to find IEC publications by a More than 55 000 electrotechnical terminology entries in
variety of criteria (reference number, text, technical English and French extracted from the Terms and Definitions
committee,…). It also gives information on projects, replaced clause of IEC publications issued since 2002. Some entries
and withdrawn publications. have been collected from earlier publications of IEC TC 37,

77, 86 and CISPR.
IEC Just Published - webstore.iec.ch/justpublished
Stay up to date on all new IEC publications. Just Published IEC Customer Service Centre - webstore.iec.ch/csc
details all new publications released. Available online and If you wish to give us your feedback on this publication or
also once a month by email. need further assistance, please contact the Customer Service
Centre: [e-mail].
A propos de l'IEC
La Commission Electrotechnique Internationale (IEC) est la première organisation mondiale qui élabore et publie des
Normes internationales pour tout ce qui a trait à l'électricité, à l'électronique et aux technologies apparentées.

A propos des publications IEC
Le contenu technique des publications IEC est constamment revu. Veuillez vous assurer que vous possédez l’édition la
plus récente, un corrigendum ou amendement peut avoir été publié.

Catalogue IEC - webstore.iec.ch/catalogue Electropedia - www.electropedia.org
Application autonome pour consulter tous les renseignements
Le premier dictionnaire en ligne de termes électroniques et
bibliographiques sur les Normes internationales,
électriques. Il contient plus de 30 000 termes et définitions en
Spécifications techniques, Rapports techniques et autres
anglais et en français, ainsi que les termes équivalents dans
documents de l'IEC. Disponible pour PC, Mac OS, tablettes
14 langues additionnelles. Egalement appelé Vocabulaire
Android et iPad.
Electrotechnique International (IEV) en ligne.

Recherche de publications IEC - www.iec.ch/searchpub
Glossaire IEC - std.iec.ch/glossary
Plus de 55 000 entrées terminologiques électrotechniques, en
La recherche avancée permet de trouver des publications IEC
en utilisant différents critères (numéro de référence, texte, anglais et en français, extraites des articles Termes et
comité d’études,…). Elle donne aussi des informations sur les Définitions des publications IEC parues depuis 2002. Plus
projets et les publications remplacées ou retirées. certaines entrées antérieures extraites des publications des

CE 37, 77, 86 et CISPR de l'IEC.
IEC Just Published - webstore.iec.ch/justpublished

Service Clients - webstore.iec.ch/csc
Restez informé sur les nouvelles publications IEC. Just
Published détaille les nouvelles publications parues. Si vous désirez nous donner des commentaires sur cette
Disponible en ligne et aussi une fois par mois par email. publication ou si vous avez des questions contactez-nous:
[e-mail].
IEC 61108-4 ®
Edition 1.0 2004-07
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
Maritime navigation and radiocommunication equipment and systems – Global

navigation satellite systems (GNSS) –

Part 4: Shipborne DGPS and DGLONASS maritime radio beacon receiver

equipment – Performance requirements, methods of testing and required test

results
Matériels et systèmes de navigation et de radiocommunication maritimes –

Système mondial de navigation par satellite (GNSS) –

Partie 4: Equipement pour récepteur de balises radioélectriques DGLONASS et

DGPS embarqués – Exigences d'exploitation et de fonctionnement, méthodes

d'essai et résultats d'essai exigés

INTERNATIONAL
ELECTROTECHNICAL
COMMISSION
COMMISSION
ELECTROTECHNIQUE
PRICE CODE
INTERNATIONALE
CODE PRIX W
ICS 47.020.70 ISBN 978-2-8322-1990-4

– 2 – IEC 61108-4:2004 © IEC 2004
CONTENTS
FOREWORD . 4
1 Scope . 6
2 Normative references . 6
3 Terms, definitions and abbreviations . 7
3.1 Definitions . 7
3.2 Abbreviations . 7
4 Performance requirements . 7
4.1 Introduction . 7
4.2 Composition . 8
4.3 Functional requirements . 8
4.4 Protection . 9
4.5 Integrity . 9
4.6 Interfaces . 10
4.7 IEC 61162-1, IEC 61162-2 implementation . 10
4.8 IEC 61162-3 implementation . 10
4.9 Display and control . 10
4.10 Installation . 10
5 Technical characteristics . 11
5.1 Carrier frequency . 11
5.2 Frequency tolerance . 11
5.3 Message types . 11
5.4 Data transmission rate . 11
5.5 Dynamic range . 11
5.6 Maximum bit error ratio . 11
5.7 Receiver selectivity and stability . 11
5.8 Automatic frequency selection . 12
5.9 Protection ratios . 12
6 Methods of testing and required test results . 13
6.1 General conditions of measurement and test signals . 13
6.2 Operational tests . 14
6.3 Protection of external connections . 18
6.4 Integrity . 18
6.5 Technical tests . 18
6.6 Additional functionality tests . 20

Annex A (normative) Simulation of noise situations for the test of shipborne DGPS
maritime radio beacon receiver equipment . 21
A.1 Parameters describing noise . 21
A.2 Noise models . 22
A.3 Test procedures . 26

Annex B (informative)  Methodology for measuring WER . 27
B.1 Recording the RTCM data stream . 27
B.2 Analysing the RTCM data stream . 27
B.3 Caution . 27

Annex C (normative) Tests that are specific to integrated equipment that does not
provide an output port for testing . 30
C.1 General requirements . 30
C.2 Test of WER display . 30
C.3 Comments to Clause 6, methods of testing . 30

Annex D (informative) Installation guidelines to counteract the effect of interference . 31
D.1 Introduction . 31
D.2 Antennas . 31
D.3 General installation requirements . 32
D.4 Noise/interference sources . 34
D.5 Testing . 34
D.6 Troubleshooting. 35

Annex E (informative) Implementation using a concurrent process . 36

Annex F (informative) Data interface guidance . 38

Bibliography . 39

Figure A.1 – Generating atmospheric
...