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

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 Res. MSC.74 (69), Annex 3, Universal AIS. It incorporates the technical characteristics of non-shipborne, fixed station AIS equipment, included in the relevant ITU and IALA recommendations. Where applicable, takes into account the ITU Radio Regulations.

General Information

• Status: Published
• Publication Date: 26-May-2009
• ICS: 47.020.70 - Navigation and control equipment
• Technical Committee: TC 80 - Maritime navigation and radiocommunication equipment and systems
• Drafting Committee: WG 14 - TC 80/WG 14
• Current Stage: DELPUB - Deleted Publication
• Completion Date: 20-Jan-2015

Relations

• Amended By: 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
• Revised: 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
• Effective Date: 05-Sep-2023

Standards Content (Sample)

INTERNATIONAL IEC
STANDARD 62320-1
First edition
2007-02
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
Reference number
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INTERNATIONAL IEC
STANDARD 62320-1
First edition
2007-02
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 2007 ⎯ 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 XD
International Electrotechnical Commission
МеждународнаяЭлектротехническаяКомиссия
For price, see current catalogue

– 2 – 62320-1 © IEC:2007(E)
CONTENTS
FOREWORD.4
INTRODUCTION.6

1 Scope.7
2 Normative references .7
3 Symbols and abbreviations.8
4 Functional layout of an AIS Base Station .8
4.1 General .8
4.2 Functional block diagram of an AIS Base Station.9
4.3 General VDL requirements .10
4.4 Functional diagram for operation of a Base Station .11
4.5 Base Station input/output sentence formatters.11
5 Functional definition of the radio interface of the AIS Base Station .13
5.1 General requirements of the physical layer.13
5.2 Required parameter settings for the physical layer of the AIS Base Station .13
5.3 Minimum requirements for the TDMA transmitter of the AIS Base Station.14
5.4 Minimum requirements for the TDMA receivers of the AIS Base Station .15
5.5 Shutdown procedure for an AIS Base Station .15
6 Requirements for AIS Base Station.15
6.1 General .15
6.2 Dependent Base Station requirements.16
6.3 Independent Base Station requirements .17
6.4 BIIT conditions .22
6.5 Further requirements for optional features.22
7 Functional definition of the presentation interface of the AIS Base Station.23
7.1 Physical requirements for the presentation interface .23
7.2 Presentation interface data exchange.23
8 Tests of AIS Base Stations – method of measurement and required results.24
8.1 Test conditions.24
9 Physical radio tests .27
9.1 Transceiver protection test .27
9.2 TDMA transmitter .28
9.3 TDMA receivers.35
9.4 Conducted spurious emissions at the antenna.43
10 Functional tests for Base Station .44
10.1 Pre-set-up .44
10.2 Normal operation.45
10.3 Intentional slot reuse (link congestion) .72
10.4 Comment Block Encapsulation .73

Annex A (informative)  Proposed additional IEC 61162 AIS sentences.75

Figure 1 – Functional block diagram of an AIS Base Station .9
Figure 2 – Functional block diagram dependent and independent operation.11
Figure 3 – General processing diagram .17
Figure 4 – General processing diagram .18

62320-1 © IEC:2007(E) – 3 –
Figure 5 – Flow diagram for AIS Base Station response to VDM input.21
Figure 6 – Format for repeating four-packet cluster.25
Figure 7 – Measurement arrangement .28
Figure 8 – Measurement arrangement .29
Figure 9 – Modulation spectrum for slotted transmission 25 kHz .30
Figure 10 – Modulation spectrum for slotted transmission at optional 12,5 kHz .31
Figure 11 – Measurement arrangement for modulation accuracy.31
Figure 12 – Power versus time mask .33
Figure 13 – Measurement arrangement.34
Figure 14 – Measurement arrangement.35
Figure 15 – Measurement arrangement.36
Figure 16 – Measurement arrangement.37
Figure 17 – Measurement arrangement.38
Figure 18 – PER/BER or SINAD measuring equipment .40
Figure 19 – Measurement arrangement for inter-modulation .42
Figure 20 – Measurement arrangement for blocking or de-sensitisation .43

Table 1 – Base Station input/output sentence formatters .12
Table 2 – Required parameter settings for an AIS Base Station .14
Table 3 – Required settings of physical layer constants .14
Table 4 – Bandwidth related parameters of the physical layer of the AIS Base Station.14
Table 5 – Minimum required TDMA transmitter characteristics .15
Table 6 – Minimum TDMA receiver characteristics .15
Table 7 – Base Station response to input messages from the VDL.17
Table 8 – Base Station response to input messages from the VDL.19
Table 9 – BIIT alarm conditions monitored by an AIS Base Station .22
Table 10 – Content of first two packets .25
Table 11 – Fixed PRS data derived from ITU-T O.153 .25
Table 12 – Maximum values of absolute measurement uncertainties.27
Table 13 – Definition of timings for Figure 12.33
Table 14 – Frequencies for inter-modulation tests.42

– 4 – 62320-1 © IEC:2007(E)
INTERNATIONAL ELECTROTECHNICAL COMMISSION
___________
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

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 interna-
tional 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, Techni-
cal 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 organiza-
tions liaising with the IEC also participate in this preparation. IEC collaborates closely with the International Or-
ganization 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 inter-
ested 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 misinter-
pretation 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 be-
tween 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 equip-
ment 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 ex-
penses arising out of the publication, use of, or reliance upon, this IEC Publication or any other IEC Publica-
tions.
8) Attention is drawn to the Normativ
...

IEC 62320-1
Edition 1.1 2009-05
INTERNATIONAL
STANDARD
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
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IEC 62320-1
Edition 1.1 2009-05
INTERNATIONAL
STANDARD
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
PRICE CODE
CS
ICS 47.020.70 ISBN 978-2-88910-671-4
– 2 – 62320-1 © IEC:2007+A1:2008(E)
CONTENTS
FOREWORD.4
INTRODUCTION.6

1 Scope.7
2 Normative references .7
3 Symbols and abbreviations.8
4 Functional layout of an AIS Base Station .8
4.1 General .8
4.2 Functional block diagram of an AIS Base Station.9
4.3 General VDL requirements .10
4.4 Functional diagram for operation of a Base Station .11
4.5 Base Station input/output sentence formatters.11
5 Functional definition of the radio interface of the AIS Base Station .13
5.1 General requirements of the physical layer.13
5.2 Required parameter settings for the physical layer of the AIS Base Station .13
5.3 Minimum requirements for the TDMA transmitter of the AIS Base Station.14
5.4 Minimum requirements for the TDMA receivers of the AIS Base Station .15
5.5 Shutdown procedure for an AIS Base Station .15
6 Requirements for AIS Base Station.15
6.1 General .15
6.2 Dependent Base Station requirements.16
6.3 Independent Base Station requirements .17
6.4 BIIT conditions .22
6.5 Further requirements for optional features.23
7 Functional definition of the presentation interface of the AIS Base Station.24
7.1 Physical requirements for the presentation interface .24
7.2 Presentation interface data exchange.24
8 Tests of AIS Base Stations – method of measurement and required results.24
8.1 Test conditions.24
9 Physical radio tests .28
9.1 Transceiver protection test .28
9.2 TDMA transmitter .28
9.3 TDMA receivers.36
9.4 Conducted spurious emissions at the antenna.45
10 Functional tests for Base Station .45
10.1 Pre-set-up .46
10.2 Normal operation.47
10.3 Intentional slot reuse (link congestion) .74
10.4 Comment Block Encapsulation .75

Annex A (normative) Additional AIS Base Station sentences .77

of an AIS Base Station .9
Figure 1 – Functional block diagram
Figure 2 – Functional block diagram dependent and independent operation.11
Figure 3 – General processing diagram .17
Figure 4 – General processing diagram .18

62320-1 © IEC:2007+A1:2008(E) – 3 –
Figure 5 – Flow diagram for AIS Base Station response to VDM input.21
Figure 6 – Format for repeating four-packet cluster.25
Figure 7 – Measurement arrangement .29
Figure 8 – Measurement arrangement .30
Figure 9 – Modulation spectrum for slotted transmission 25 kHz .30
Figure 10 – Modulation spectrum for slotted transmission at optional 12,5 kHz .31
Figure 11 – Measurement arrangement for modulation accuracy.32
Figure 12 – Power versus time mask .34
Figure 13 – Measurement arrangement.35
Figure 14 – Measurement arrangement.36
Figure 15 – Measurement arrangement.37
Figure 16 – Measurement arrangement.38
Figure 17 – Measurement arrangement.39
Figure 18 – PER/BER or SINAD measuring equipment .41
Figure 19 – Measurement arrangement for inter-modulation .43
Figure 20 – Measurement arrangement for blocking or de-sensitisation .44

Table 1 – Base Station input/output sentence formatters .12
Table 2 – Required parameter settings for an AIS Base Station .14
Table 3 – Required settings of physical layer constants .14
Table 4 – Bandwidth related parameters of the physical layer of the AIS Base Station.14
Table 5 – Minimum required TDMA transmitter characteristics .15
Table 6 – Minimum TDMA receiver characteristics .15
Table 7 – Base Station response to input messages from the VDL.17
Table 8 – Base Station response to input messages from the VDL.19
Table 9 – BIIT alarm conditions monitored by an AIS Base Station .23
Table 10 – Content of first two packets .26
Table 11 – Fixed PRS data derived from ITU-T O.153 .26
Table 12 – Maximum values of absolute measurement uncertainties.27
Table 13 – Definition of timings for Figure 12.34
Table 14 – Frequencies for inter-modulation tests.43

– 4 – 62320-1 © IEC:2007+A1:2008(E)
INTERNATIONAL ELECTROTECHNICAL COMMISSION
___________
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

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 interna-
tional 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, Techni-
cal 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 organiza-
tions liaising with the IEC also participate in this preparation. IEC collaborates closely with the International Or-
ganization 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 inter-
ested 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 misinter-
pretation 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 be-
tween 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 equip-
ment 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 ex-
penses arising out of the publication, use of, or reliance upon, this IEC Publication or any other IEC Publica-
tions.
8) Attention is drawn to the Normative references cited in this publication. Use of the referenced publications is
indispensable for the correct application of this publication.
...