IEC 62320-1:2015

Maritime navigation and radiocommunication equipment and systems - Automatic identification system (AIS) - Part 1: AIS Base Stations - Minimum operational and performance requirements, methods of testing and required test results

IEC 62320-1:2015 specifies the minimum operational and performance requirements, methods of testing and required test results for AIS Base Stations, compatible with the performance standards adopted by IMO Resolution MSC.74 (69), Annex 3, Universal AIS. It incorporates the technical characteristics of non-shipborne, fixed station AIS equipment, included in recommendation ITU-R M.1371 and IALA Recommendation A-124. Where applicable, it also takes into account the ITU Radio Regulations. This standard takes into account other associated IEC international standards and existing national standards, as applicable. This standard is applicable for AIS Base Stations. It does not include specifications for the display of AIS data on shore. This second edition cancels and replaces the first edition published in 2007 and its Amendment 1:2008. This edition constitutes a technical revision. This edition includes the following significant technical changes with respect to the previous edition:
- incorporation of the technical characteristics included in Recommendation ITU R M.1371 5;
- the BCE, BCF and CAB sentences replaced with BCG, BCL and RST;
- comment blocks replaced with TAG blocks;
- scheduled broadcast of Message 26 added;
- Message 27 control added;
- transmitter intermodulation attenuation harmonised with ITU;
- 12,5 kHz channel operation removed;
- transmission of Message 24A, Message 25 and Message 26 added;
- 90 % channel load test with VSI and TAG blocks enabled added.

Matériels et systèmes de navigation et de radiocommunication maritimes - Systèmes d'identification automatique (AIS) - Partie 1: Stations de base AIS - Exigences opérationnelles et de fonctionnement minimales, méthodes d'essai et résultats d'essai exigés

L'IEC 62320-1:2015 spécifie les exigences opérationnelles et de fonctionnement minimales, les méthodes d'essai et les résultats d'essai exigés applicables aux stations de base AIS compatibles avec les normes de fonctionnement adoptées par la Résolution MSC.74(69) de l'OMI (Annexe 3, AIS universel). Elle intègre les caractéristiques techniques des systèmes AIS de station fixe non embarquée, incluses dans la Recommandation UIT-R M.1371 et la Recommandation IALA A-124. Le cas échéant, elle tient compte également des réglementations de radiodiffusion de l'UIT. La présente norme s'appuie sur d'autres Normes internationales de l'IEC associées et sur des normes nationales existantes, selon le cas.
La présente norme s'applique aux stations de base AIS. Elle n'inclut pas les spécifications pour l'affichage des données AIS à terre.

General Information

• Status: Published
• Publication Date: 19-Jan-2015
• 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 15 - TC 80/WG 15
• Current Stage: PPUB - Publication issued
• Start Date: 31-Mar-2015
• Completion Date: 20-Jan-2015

Relations

• Revises: IEC 62320-1:2007 - Maritime navigation and radiocommunication equipment and systems - Automatic identification system (AIS) - Part 1: AIS Base Stations - Minimum operational and performance requirements, methods of testing and required test results
• Effective Date: 05-Sep-2023
• Revises: IEC 62320-1:2007/AMD1:2008 - Amendment 1 - Maritime navigation and radiocommunication equipment and systems - Automatic identification system (AIS) - Part 1: AIS Base Stations - Minimum operational and performance requirements, methods of testing and required test results
• Effective Date: 05-Sep-2023

Standards Content (Sample)

IEC 62320-1 ®
Edition 2.0 2015-01
INTERNATIONAL
STANDARD
colour
inside
Maritime navigation and radiocommunication equipment and systems – Automatic
identification system (AIS) –
Part 1: AIS Base Stations – Minimum operational and performance requirements,
methods of testing and required test results

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.

IEC Central Office Tel.: [phone]
3, rue de Varembé Fax: [phone]
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Switzerland www.iec.ch
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IEC 62320-1 ®
Edition 2.0 2015-01
INTERNATIONAL
STANDARD
colour
inside
Maritime navigation and radiocommunication equipment and systems – Automatic

identification system (AIS) –
Part 1: AIS Base Stations – Minimum operational and performance requirements,

methods of testing and required test results

INTERNATIONAL
ELECTROTECHNICAL
COMMISSION
ICS 47.020.70 ISBN 978-2-8322-2205-8

– 2 – IEC 62320-1:2015  IEC 2015
CONTENTS
FOREWORD . 7
INTRODUCTION . 9
1 Scope . 10
2 Normative references . 10
3 Abbreviations . 11
4 Functional layout of an AIS Base Station . 12
4.1 General . 12
4.2 Functional block diagram of an AIS Base Station . 12
4.3 General VDL requirements . 13
4.3.1 Sources of VDL messages for transmission . 13
4.3.2 Use of access schemes . 14
4.4 Functional diagram for operation of a Base Station . 14
4.5 Base Station input/output sentence formatters . 15
5 Functional definition of the radio interface of the AIS Base Station . 17
5.1 General requirements of the physical layer . 17
5.2 Required parameter settings for the physical layer of the AIS Base Station . 18
5.3 Minimum requirements for the TDMA transmitter of the AIS Base Station . 19
5.4 Minimum requirements for the TDMA receivers of the AIS Base Station . 21
5.5 Shutdown procedure for an AIS Base Station . 21
6 Requirements for AIS Base Station . 21
6.1 General . 21
6.2 Dependent Base Station requirements . 22
6.2.1 General rules . 22
6.2.2 General processing diagram . 22
6.2.3 AIS Base Station response to PI input . 23
6.2.4 AIS Base Station response to VDL input . 23
6.3 Independent Base Station requirements . 23
6.3.1 General rules . 23
6.3.2 General processing diagram . 24
6.3.3 AIS Base Station response to PI input . 24
6.3.4 AIS Base Station interaction on the VDL . 25
6.3.5 Autonomous channel management . 29
6.4 BIIT conditions . 30
6.5 Default settings after reset . 30
6.6 Further requirements for optional features . 31
6.6.1 General . 31
6.6.2 External synchronisation source option . 31
6.6.3 DGNSS dedicated port option . 32
7 Functional definition of the presentation interface of the AIS Base Station . 32
7.1 Physical requirements for the presentation interface . 32
7.2 Presentation interface data exchange . 32
7.2.1 General . 32
7.2.2 Base Station presentation interface output . 32
7.2.3 Base Station presentation interface input . 32
7.2.4 TAG blocks on presentation interface . 32

8 Tests of AIS Base Stations – Method of measurement and required results . 33
8.1 General . 33
8.2 Test conditions . 33
8.2.1 Normal test conditions . 33
8.2.2 Extreme test conditions . 33
8.2.3 Standard test environment . 33
8.2.4 Test signals . 34
8.2.5 Arrangements for test signals applied to the receiver input . 35
8.2.6 Encoder for receiver measurements . 35
8.2.7 Waiver for receivers . 35
8.2.8 Impedance . 35
8.2.9 Artificial antenna (dummy load) . 35
8.2.10 Facilities for access . 35
8.2.11 Operation of the transmitter . 35
8.2.12 Measurement uncertainties . 36
9 Physical radio tests . 36
9.1 Remark . 36
9.2 General transceiver tests . 36
9.2.1 Transceiver protection test . 36
9.2.2 Transmitter shutdown procedure . 37
9.3 TDMA transmitter . 37
9.3.1 General . 37
9.3.2 Frequency error . 37
9.3.3 Carrier power . 38
9.3.4 Modulation spectrum slotted transmission . 38
9.3.5 Transmitter test sequence and modulation accuracy verification . 39
9.3.6 Transmitter output power versus time function . 40
9.3.7 Intermodulation attenuation . 40
9.4 TDMA receivers . 42
9.4.1 Sensitivity . 42
9.4.2 Error behaviour at high input levels. 42
9.4.3 Co-channel rejection . 43
9.4.4 Adjacent channel selectivity . 44
9.4.5 Spurious response rejection . 44
9.4.6 Intermodulation response rejection . 47
9.4.7 Blocking or desensitisation . 48
9.5 Conducted spurious emissions at the antenna . 49
9.5.1 Spurious emissions from the receiver . 49
9.5.2 Spurious emissions from the transmitter . 49
10 Functional tests for Base Station . 49
10.1 Pre-set-up . 49
10.1.1 Basic initialisation . 49
10.1.2 Pre-setup of dependent base station . 50
10.1.3 Pre-setup for independent mode . 50
10.2 Normal operation . 51
10.2.1 Base Station configuration and services . 51
10.2.2 Addressed and broadcast messaging . 66
10.2.3 Interrogations and interrogation response . 69
10.2.4 Addressed operation . 70

– 4 – IEC 62320-1:2015  IEC 2015
10.2.5 Sl
...

IEC 62320-1 ®
Edition 2.0 2015-01
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
colour
inside
Maritime navigation and radiocommunication equipment and systems –
Automatic identification system (AIS) –
Part 1: AIS Base Stations – Minimum operational and performance requirements,
methods of testing and required test results

Matériels et systèmes de navigation et de radiocommunication maritimes –
Systèmes d'identification automatique (AIS) –
Partie 1: Stations de base AIS – Exigences opérationnelles et de fonctionnement
minimales, 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
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International Standards for all electrical, electronic and related technologies.

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IEC 62320-1 ®
Edition 2.0 2015-01
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
colour
inside
Maritime navigation and radiocommunication equipment and systems –

Automatic identification system (AIS) –

Part 1: AIS Base Stations – Minimum operational and performance requirements,

methods of testing and required test results

Matériels et systèmes de navigation et de radiocommunication maritimes –

Systèmes d'identification automatique (AIS) –

Partie 1: Stations de base AIS – Exigences opérationnelles et de fonctionnement

minimales, méthodes d'essai et résultats d'essai exigés

INTERNATIONAL
ELECTROTECHNICAL
COMMISSION
COMMISSION
ELECTROTECHNIQUE
INTERNATIONALE
ICS 47.020.70 ISBN 978-2-8322-1100-9

– 2 – IEC 62320-1:2015  IEC 2015
CONTENTS
FOREWORD . 7
INTRODUCTION . 9
1 Scope . 10
2 Normative references . 10
3 Abbreviations . 11
4 Functional layout of an AIS Base Station . 12
4.1 General . 12
4.2 Functional block diagram of an AIS Base Station . 12
4.3 General VDL requirements . 13
4.3.1 Sources of VDL messages for transmission . 13
4.3.2 Use of access schemes . 14
4.4 Functional diagram for operation of a Base Station . 14
4.5 Base Station input/output sentence formatters . 15
5 Functional definition of the radio interface of the AIS Base Station . 17
5.1 General requirements of the physical layer . 17
5.2 Required parameter settings for the physical layer of the AIS Base Station . 18
5.3 Minimum requirements for the TDMA transmitter of the AIS Base Station . 19
5.4 Minimum requirements for the TDMA receivers of the AIS Base Station . 21
5.5 Shutdown procedure for an AIS Base Station . 21
6 Requirements for AIS Base Station . 21
6.1 General . 21
6.2 Dependent Base Station requirements . 22
6.2.1 General rules . 22
6.2.2 General processing diagram . 22
6.2.3 AIS Base Station response to PI input . 23
6.2.4 AIS Base Station response to VDL input . 23
6.3 Independent Base Station requirements . 23
6.3.1 General rules . 23
6.3.2 General processing diagram . 24
6.3.3 AIS Base Station response to PI input . 24
6.3.4 AIS Base Station interaction on the VDL . 25
6.3.5 Autonomous channel management . 29
6.4 BIIT conditions . 30
6.5 Default settings after reset . 30
6.6 Further requirements for optional features . 31
6.6.1 General . 31
6.6.2 External synchronisation source option . 31
6.6.3 DGNSS dedicated port option . 32
7 Functional definition of the presentation interface of the AIS Base Station . 32
7.1 Physical requirements for the presentation interface . 32
7.2 Presentation interface data exchange . 32
7.2.1 General . 32
7.2.2 Base Station presentation interface output . 32
7.2.3 Base Station presentation interface input . 32
7.2.4 TAG blocks on presentation interface . 32

8 Tests of AIS Base Stations – Method of measurement and required results . 33
8.1 General . 33
8.2 Test conditions . 33
8.2.1 Normal test conditions . 33
8.2.2 Extreme test conditions . 33
8.2.3 Standard test environment . 33
8.2.4 Test signals . 34
8.2.5 Arrangements for test signals applied to the receiver input . 35
8.2.6 Encoder for receiver measurements . 35
8.2.7 Waiver for receivers . 35
8.2.8 Impedance . 35
8.2.9 Artificial antenna (dummy load) . 35
8.2.10 Facilities for access . 35
8.2.11 Operation of the transmitter . 35
8.2.12 Measurement uncertainties . 36
9 Physical radio tests . 36
9.1 Remark . 36
9.2 General transceiver tests . 36
9.2.1 Transceiver protection test . 36
9.2.2 Transmitter shutdown procedure . 37
9.3 TDMA transmitter . 37
9.3.1 General . 37
9.3.2 Frequency error . 37
9.3.3 Carrier power . 38
9.3.4 Modulation spectrum slotted transmission . 38
9.3.5 Transmitter test sequence and modulation accuracy verification . 39
9.3.6 Transmitte
...