Maritime navigation and radiocommunication equipment and systems - Automatic Identification Systems (AIS) - Part 2: Class A shipborne equipment of the automatic identification system (AIS) - Operational and performance requirements, methods of test and required test results (IEC 61993-2:2018)

This part of IEC 61993 specifies the minimum operational and performance requirements,
methods of testing and required test results conforming to performance standards adopted by
IMO in Resolution MSC.74(69):1998, Annex 3. This document incorporates the applicable
technical characteristics of Class A shipborne equipment included in Recommendation ITU-R
M.1371 and takes into account the ITU Radio Regulations, where applicable. In addition, it
takes account of IMO Resolution A.694(17) to which IEC 60945 is associated. When a
requirement in this document is different from IEC 60945, the requirement of this document
takes precedence.
This document also specifies the minimum requirements both for the means to input and
display data and for the interfaces to other equipment suitable to be used as means of input
and display data.
NOTE All text of this document that is identical to that in IMO resolution MSC.74(69):1998, Annex 3, or to that in
ITU-R Recommendation M.1371 is printed in italics, and references to the resolution (abbreviated to "A3") or the
recommendation (abbreviated to "M.1371") and paragraph numbers are indicated in parentheses, for instance
(A3/3.3) or (M.1371-5/A2-3.3) respectively.

Navigations- und Funkkommunikationsgeräte und -systeme für die Seeschifffahrt - Automatische Identifikationssysteme (AIS) - Teil 2: Geräte der Klasse A des universellen automatischen Identifikationssystems (AIS) für Schiffe - Betriebs- und Leistungsanforderungen, Prüfverfahren und geforderte Prüfergebnisse (IEC 61993-2:2018)

Matériels et systèmes de navigation et de radiocommunications maritimes - Systèmes d'identification automatique (AIS) - Partie 2: Equipements AIS de type Classe A embarqués - Exigences d'exploitation et de fonctionnement, méthodes d'essai et résultats d'e (IEC 61993-2:2018)

NEW!IEC 61993-2:2018 est disponible sous forme de IEC 61993-2:2018 RLV qui contient la Norme internationale et sa version Redline, illustrant les modifications du contenu technique depuis l'édition précédente. L'IEC 61993-2:2018 spécifie les exigences minimales d'exploitation et de fonctionnement, les méthodes d'essai et les résultats d'essai exigés selon les normes de fonctionnement adoptées par l'OMI dans la Résolution MSC.74(69):1998, Annexe 3. Le présent document intègre les caractéristiques techniques applicables des équipements de bord de Classe A inclus dans la Recommandation UIT-R M.1371 et tient compte des Règlements des radiocommunications de l'UIT, le cas échéant. De plus, elle tient compte de la Résolution A.694(17) de l'OMI à laquelle l'IEC 60945 est associée. Si une exigence du présent document est différente de l'IEC 60945, cette exigence prévaut. Le présent document spécifie également les exigences minimales en matière d'entrée et d'affichage des données, et pour les interfaces avec d'autres matériels utilisables comme moyens d'entrée et d'affichage des données. Cette troisième édition annule et remplace la deuxième édition publiée en 2012. Cette édition constitue une révision technique. Cette édition inclut les modifications techniques majeures suivantes par rapport à l'édition précédente: a) elle intègre les caractéristiques techniques incluses dans la Recommandation UIT R M.1371-5:2014; b) elle introduit le concept de localisation de groupes de dispositifs afin d'inclure EPIRB AIS et MOB AIS en plus d'AIS SART; c) elle ajoute des fonctions de sécurité pour l'entrée de configuration en introduisant une nouvelle sentence SSA; d) elle ajoute une mise en œuvre facultative des interfaces IEC 61162-450/460; e) elle ajoute des exigences en matière de gestion des alertes à la passerelle (BAM); f) elle introduit des valeurs de dimension étendues utilisées par les bateaux-remorqueurs; g) elle ajoute une exigence de mise à jour logicielle.

Pomorska navigacijska in radiokomunikacijska oprema in sistemi - Sistemi za avtomatično identifikacijo (AIS) - 2. del: Ladijska oprema razreda A sistema za avtomatično identifikacijo (AIS) - Operativne in tehnične zahteve, preskusne metode in pričakovani rezultati preskušanja (IEC 61993-2:2018)

Ta del standarda IEC 61993 določa minimalne operativne in izvedbene zahteve, preskusne metode in pričakovane rezultate preskušanja v skladu z izvedbenimi standardi, ki jih je sprejela Mednarodna pomorska organizacija v dodatku 3 k resoluciji MSC.74(69):1998. Ta dokument vključuje veljavne tehnične lastnosti ladijske opreme razreda A, ki je zajeta v priporočilu ITU-R M.1371, in upošteva pravilnik ITU o radiokomunikacijah, kadar je to primerno. Poleg tega je upoštevana Resolucija Mednarodne pomorske organizacije A.694(17), s katero je povezan standard IEC 60945. Če se zahteva iz tega dokumenta razlikuje od zahteve iz standarda IEC 60945, velja zahteva iz tega dokumenta.
Ta dokument določa tudi minimalne zahteve za sredstva za vnos in prikaz podatkov ter vmesnike za drugo opremo, ki se lahko uporabljajo kot sredstva za vnos in prikaz podatkov.
OPOMBA: Celotno besedilo tega dokumenta, ki je enako besedilu v dodatku 3 k resoluciji MSC.74(69):1998 Mednarodne pomorske organizacije ali priporočilu ITU-R M.1371, je natisnjeno s poševno pisavo, sklici na resolucijo (krajše A3) ali priporočilo (krajše M.1371) in številke odstavkov pa so navedeni v oklepajih, npr. (A3/3.3) oziroma (M.1371-5/A2-3.3).

General Information

Status
Published
Publication Date
25-Nov-2018
Technical Committee
Current Stage
6060 - National Implementation/Publication (Adopted Project)
Start Date
09-Nov-2018
Due Date
14-Jan-2019
Completion Date
26-Nov-2018

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SIST EN IEC 61993-2:2019
01-januar-2019
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SIST EN 61993-2:2013
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Maritime navigation and radiocommunication equipment and systems - Automatic

Identification Systems (AIS) - Part 2: Class A shipborne equipment of the automatic

identification system (AIS) - Operational and performance requirements, methods of test

and required test results (IEC 61993-2:2018)
Navigations- und Funkkommunikationsgeräte und -systeme für die Seeschifffahrt -

Automatische Identifikationssysteme (AIS) - Teil 2: Geräte der Klasse A des universellen

automatischen Identifikationssystems (AIS) für Schiffe - Betriebs- und
Leistungsanforderungen, Prüfverfahren und geforderte Prüfergebnisse (IEC 61993-
2:2018)

Matériels et systèmes de navigation et de radiocommunications maritimes - Systèmes

d'identification automatique (AIS) - Partie 2: Equipements AIS de type Classe A
embarqués - Exigences d'exploitation et de fonctionnement, méthodes d'essai et
résultats d'e (IEC 61993-2:2018)
Ta slovenski standard je istoveten z: EN IEC 61993-2:2018
ICS:
47.020.70 Navigacijska in krmilna Navigation and control
oprema equipment
SIST EN IEC 61993-2:2019 en

2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

---------------------- Page: 1 ----------------------
SIST EN IEC 61993-2:2019
---------------------- Page: 2 ----------------------
SIST EN IEC 61993-2:2019
EUROPEAN STANDARD EN IEC 61993-2
NORME EUROPÉENNE
EUROPÄISCHE NORM
October 2018
ICS 47.020.70 Supersedes EN 61993-2:2013
English Version
Maritime navigation and radiocommunication equipment and
systems - Automatic Identification Systems (AIS) - Part 2: Class
A shipborne equipment of the automatic identification system
(AIS) - Operational and performance requirements, methods of
test and required test results
(IEC 61993-2:2018)

Matériels et systèmes de navigation et de Navigations- und Funkkommunikationsgeräte und -systeme

radiocommunication maritimes - Systèmes d'identification für die Seeschifffahrt - Automatische Identifikationssysteme

automatique (AIS) Partie 2: Équipements AIS de type (AIS) - Teil 2: Geräte der Klasse A des universellen

Classe A embarqués - Exigences d'exploitation et de automatischen Identifikationssystems (AIS) für Schiffe -

fonctionnement, méthodes d'essai et résultats d'essai Betriebs- und Leistungsanforderungen, Prüfverfahren und

exigés geforderte Prüfergebnisse
(IEC 61993-2:2018) (IEC 61993-2:2018)

This European Standard was approved by CENELEC on 2018-08-23. CENELEC members are bound to comply with the CEN/CENELEC

Internal Regulations which stipulate the conditions for giving this European Standard the status of a national standard without any alteration.

Up-to-date lists and bibliographical references concerning such national standards may be obtained on application to the CEN-CENELEC

Management Centre or to any CENELEC member.

This European Standard exists in three official versions (English, French, German). A version in any other language made by translation

under the responsibility of a CENELEC member into its own language and notified to the CEN-CENELEC Management Centre has the

same status as the official versions.

CENELEC members are the national electrotechnical committees of Austria, Belgium, Bulgaria, Croatia, Cyprus, the Czech Republic,

Denmark, Estonia, Finland, Former Yugoslav Republic of Macedonia, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia,

Lithuania, Luxembourg, Malta, the Netherlands, Norway, Poland, Portugal, Romania, Serbia, Slovakia, Slovenia, Spain, Sweden,

Switzerland, Turkey and the United Kingdom.
European Committee for Electrotechnical Standardization
Comité Européen de Normalisation Electrotechnique
Europäisches Komitee für Elektrotechnische Normung
CEN-CENELEC Management Centre: Rue de la Science 23, B-1040 Brussels

© 2018 CENELEC All rights of exploitation in any form and by any means reserved worldwide for CENELEC Members.

Ref. No. EN IEC 61993-2:2018 E
---------------------- Page: 3 ----------------------
SIST EN IEC 61993-2:2019
EN IEC 61993-2:2018 (E)
European foreword

The text of document 80/888/FDIS, future edition 3 of IEC 61993-2, prepared by IEC/TC 80 "Maritime

navigation and radiocommunication equipment and systems" was submitted to the IEC-CENELEC

parallel vote and approved by CENELEC as EN IEC 61993-2:2018.
The following dates are fixed:

• latest date by which the document has to be implemented at national (dop) 2019-05-23

level by publication of an identical national standard or by endorsement

• latest date by which the national standards conflicting with the (dow) 2021-08-23

document have to be withdrawn
This document supersedes EN 61993-2:2013.

Attention is drawn to the possibility that some of the elements of this document may be the subject of

patent rights. CENELEC shall not be held responsible for identifying any or all such patent rights.

Endorsement notice

The text of the International Standard IEC 61993-2:2018 was approved by CENELEC as a European

Standard without any modification.

In the official version, for Bibliography, the following notes have to be added for the standards

indicated:
IEC 61097-14 NOTE Harmonized as EN 61097-14
IEC 61108-1 NOTE Harmonized as EN 61108-1
IEC 61108-2 NOTE Harmonized as EN 61108-2
IEC 61162-3 NOTE Harmonized as EN 61162-3
IEC 61924-2 NOTE Harmonized as EN 61924-2
IEC 62287-1 NOTE Harmonized as EN 62287-1
IEC 62320-1 NOTE Harmonized as EN 62320-1
IEC 62320-2 NOTE Harmonized as EN 62320-2
---------------------- Page: 4 ----------------------
SIST EN IEC 61993-2:2019
EN IEC 61993-2:2018 (E)
Annex ZA
(normative)
Normative references to international publications
with their corresponding European publications

The following documents are referred to in the text in such a way that some or all of their content

constitutes requirements of this document. For dated references, only the edition cited applies. For

undated references, the latest edition of the referenced document (including any amendments)

applies.

NOTE 1 Where an International Publication has been modified by common modifications, indicated by (mod), the relevant

EN/HD applies.

NOTE 2 Up-to-date information on the latest versions of the European Standards listed in this annex is available here:

www.cenelec.eu.
Publication Year Title EN/HD Year
IEC 60945 2002 Maritime navigation and radiocommunication EN 60945 2002
equipment and systems - General requirements
- Methods of testing and required test results
IEC 61108 series Mar itime navigation and radiocommunication EN 61108 series
equipment and systems - Global navigation
satellite systems (GNSS)
IEC 61162-1 2016 Maritime navigation and radiocommunication EN 61162-1 2016
equipment and systems - Digital interfaces -
Part 1: Single talker and multiple listeners
IEC 61162-2 - Maritime navigation and radiocommunication EN 61162-2 -
equipment and systems - Digital interfaces -
Part 2: Single talker and multiple listeners, high-
speed transmission

IEC 61162-450 2018 Maritime navigation and radiocommunication EN IEC 61162-450 2018

equipment and systems - Digital interfaces -
Part 450: Multiple talkers and multiple listeners
- Ethernet interconnection
IEC 61162-460 - Maritime navigation and radiocommunication EN IEC 61162-460 -
equipment and systems - Digital interfaces -
Part 460: Multiple talkers and multiple listeners
- Ethernet interconnection - Safety and security
IEC 62288 - Maritime navigation and radiocommunication EN 62288 -
equipment and systems - Presentation of
navigation-related information on shipborne
navigational displays - General requirements,
methods of testing and required test results
IEC 62388 - Maritime navigation and radiocommunication EN 62388 -
equipment and systems - Shipborne radar -
Performance requirements, methods of testing
and required test results
---------------------- Page: 5 ----------------------
SIST EN IEC 61993-2:2019
EN IEC 61993-2:2018 (E)
IEC 62923-1 - Maritime navigation and radiocommunication - -
equipment and systems - Bridge alert
management - Part 1: Operational and
performance requirements, methods of testing
and required test results
IEC 62923-2 - Maritime navigation and radiocommunication EN 62923-2 -
equipment and systems – Bridge alert
management - Part 2: Alert and cluster
identifiers and other additional features
ITU-R 2012 Interim solutions for improved efficiency in the - -
Recommendation use of the band 156-174 MHz by stations in the
M.1084-5 maritime mobile service
ITU-R 2014 Technical characteristics for an automatic - -
Recommendation identification system using time-division multiple
M.1371-5 access in the VHF maritime mobile band
ITU-R - Digital selective-calling system for use in the - -
Recommendation maritime mobile service
M.493-14
ITU-R - Operational procedures for the use of digital - -
Recommendation selectivecalling equipment in the maritime
M.541-10 mobile service
ITU-R - Characteristics of a transponder system using - -
Recommendation digital selective calling techniques for use with
M.825-3 vessel traffic services and ship-to-ship
identification
ITU-T - Basic parameters for the measurement of error - -
Recommendation performance at bit rates below the primary rate
O.153
IMO Resolution - General requirements for shipborne radio
A.694 (17) equipment forming part of the Global Maritime
Distress and Safety System (GMDSS) and for
electronic navigational aids
IMO Resolution - Performance standards for Bridge Alert
MSC.302(87) Management
IMO Resolution - Guidelines and Criteria for Ship Reporting
MSC.43(64) Systems (as amended by MSC.111(73))
IMO Resolution - Performance standards for an Universal
MSC.74(69) sphipborne automatic identification systems
(AIS)
Under preparation. Stage at the time of publication: FprEN 62923-2:2018.
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SIST EN IEC 61993-2:2019
IEC 61993-2
Edition 3.0 2018-07
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
Maritime navigation and radiocommunication equipment and systems –
Automatic identification systems (AIS) –
Part 2: Class A shipborne equipment of the automatic identification
system (AIS) – Operational and performance requirements, methods of test
and required test results
Matériels et systèmes de navigation et de radiocommunication maritimes –
Systèmes d'identification automatique (AIS)
Partie 2: Équipements AIS de type Classe A embarqués – Exigences
d'exploitation et de fonctionnement, méthodes d'essai et résultats
d'essai exigés
INTERNATIONAL
ELECTROTECHNICAL
COMMISSION
COMMISSION
ELECTROTECHNIQUE
INTERNATIONALE
ICS 47.020.70 ISBN 978-2-8322-5865-1

Warning! Make sure that you obtained this publication from an authorized distributor.

Attention! Veuillez vous assurer que vous avez obtenu cette publication via un distributeur agréé.

® Registered trademark of the International Electrotechnical Commission
Marque déposée de la Commission Electrotechnique Internationale
---------------------- Page: 7 ----------------------
SIST EN IEC 61993-2:2019
– 2 – IEC 61993-2:2018 © IEC 2018
CONTENTS

FOREWORD ....................................................................................................................... 10

1 Scope .......................................................................................................................... 12

2 Normative references................................................................................................... 12

3 Terms, definitions and abbreviated terms ..................................................................... 13

3.1 Terms and definitions .......................................................................................... 13

3.2 Abbreviated terms ............................................................................................... 14

4 General requirements .................................................................................................. 15

4.1 General ............................................................................................................... 15

4.1.1 Overview ..................................................................................................... 15

4.1.2 General requirements ................................................................................... 15

4.1.3 Capabilities of the AIS .................................................................................. 15

4.1.4 Additional requirements ................................................................................ 15

4.1.5 Transmitter shutdown procedure .................................................................. 16

4.1.6 Quality assurance ........................................................................................ 16

4.2 Modes of operation ............................................................................................. 16

4.3 Manuals .............................................................................................................. 16

4.4 Marking and identification .................................................................................... 16

5 Other requirements ...................................................................................................... 17

5.1 Environmental, power supply, special purpose and safety requirements ............... 17

5.2 Display of information .......................................................................................... 17

5.3 Update of software .............................................................................................. 17

6 Performance requirements ........................................................................................... 17

6.1 Composition ........................................................................................................ 17

6.2 Time and position ................................................................................................ 18

6.2.1 Source for UTC ............................................................................................ 18

6.2.2 Source for AIS position reporting .................................................................. 18

6.3 User interface ..................................................................................................... 19

6.4 Identification ....................................................................................................... 19

6.5 Information.......................................................................................................... 19

6.5.1 Information provided by the AIS .................................................................... 19

6.5.2 Information reporting intervals ...................................................................... 20

6.5.3 Ship reporting capacity ................................................................................. 21

6.6 Event log ............................................................................................................ 21

6.7 Permissible initialization period ........................................................................... 22

6.8 Power supply ...................................................................................................... 22

6.9 Technical characteristics ..................................................................................... 22

6.10 Alerts and indications, fall-back arrangements ..................................................... 22

6.10.1 Built-in test equipment ................................................................................. 22

6.10.2 Status messages ......................................................................................... 25

6.11 Display, input and output ..................................................................................... 29

6.11.1 Minimum keyboard and display (MKD) .......................................................... 29

6.11.2 Communication test ..................................................................................... 33

6.11.3 Alerts and status information ........................................................................ 33

6.11.4 Data protection ............................................................................................ 34

6.11.5 Distance calculation ..................................................................................... 34

6.12 Protection from invalid controls ............................................................................ 35

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IEC 61993-2:2018 © IEC 2018 – 3 –

7 Technical requirements ................................................................................................ 35

7.1 General ............................................................................................................... 35

7.2 Physical layer ..................................................................................................... 35

7.2.1 General ....................................................................................................... 36

7.2.2 Transmitter parameters ................................................................................ 36

7.2.3 Receiver parameters .................................................................................... 37

7.3 Link layer ............................................................................................................ 37

7.3.1 General ....................................................................................................... 37

7.3.2 Link sublayer 1: Medium Access Control (MAC) ............................................ 38

7.3.3 Link sublayer 2: Data Link Service (DLS) ...................................................... 38

7.3.4 Link sublayer 3 – Link Management Entity (LME) .......................................... 38

7.4 Network layer ...................................................................................................... 41

7.4.1 General ....................................................................................................... 41

7.4.2 Management of regional operating settings ................................................... 41

7.5 Transport layer .................................................................................................... 42

7.6 Presentation interface ......................................................................................... 42

7.6.1 General ....................................................................................................... 42

7.6.2 Automatic input of sensor data ..................................................................... 43

7.6.3 High speed input/output ports ....................................................................... 44

7.6.4 Long-range communication ports .................................................................. 50

7.6.5 Optional IEC 61162-450/-460 interface ......................................................... 52

7.6.6 Test of the optional IEC 61162-450/-460 interface ........................................ 55

7.6.7 BIIT alert output ........................................................................................... 56

8 Long-range applications ............................................................................................... 57

8.1 General ............................................................................................................... 57

8.2 Long-range application by two-way interface ........................................................ 57

8.2.1 General ....................................................................................................... 57

8.2.2 Interrogations and responses ....................................................................... 57

8.2.3 Manual and automatic response ................................................................... 57

8.2.4 Data formats and contents ........................................................................... 57

8.2.5 Addressing AIS-units .................................................................................... 58

8.3 Long-range application by broadcast ................................................................... 58

9 Test conditions ............................................................................................................ 59

9.1 Normal and extreme test conditions ..................................................................... 59

9.1.1 Normal test conditions .................................................................................. 59

9.1.2 Extreme test conditions ................................................................................ 59

9.2 Standard test environment ................................................................................... 59

9.3 Additional test arrangements ............................................................................... 60

9.3.1 Arrangements for test signals applied to the receiver input ............................ 60

9.3.2 Encoder for receiver measurements ............................................................. 60

9.3.3 Waiver for receivers ..................................................................................... 60

9.3.4 Impedance ................................................................................................... 60

9.3.5 Artificial antenna (dummy load) .................................................................... 60

9.3.6 Facilities for access ..................................................................................... 60

9.3.7 Modes of operation of the transmitter ........................................................... 60

9.4 Common test conditions for protection from invalid controls ................................. 61

9.5 Measurement uncertainties .................................................................................. 61

10 Test signals ................................................................................................................. 61

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SIST EN IEC 61993-2:2019
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10.1 Standard test signal number 1 (DSC) ................................................................... 61

10.2 Standard test signal number 2 (TDMA) ................................................................ 61

10.3 Standard test signal number 3 (TDMA) ................................................................ 61

10.4 Standard test signal number 4 (PRBS) ................................................................. 62

10.5 Standard test signal number 5 (PRBS) ................................................................. 62

11 Power supply, special purpose and safety tests ............................................................ 63

12 Environmental tests ..................................................................................................... 63

13 EMC tests ................................................................................................................... 63

14 Operational tests ......................................................................................................... 63

14.1 Identification and operating modes ...................................................................... 63

14.1.1 Autonomous mode ....................................................................................... 63

14.1.2 Assigned mode ............................................................................................ 64

14.1.3 Polled mode ................................................................................................. 64

14.1.4 Addressed operation .................................................................................... 65

14.1.5 Broadcast operation ..................................................................................... 66

14.1.6 Multiple slot messages ................................................................................. 67

14.2 Manuals, marking and identification ..................................................................... 67

14.2.1 Method of measurement ............................................................................... 67

14.2.2 Required results ........................................................................................... 68

14.3 Information.......................................................................................................... 68

14.3.1 Information provided by the AIS .................................................................... 68

14.3.2 Reporting intervals ....................................................................................... 68

14.4 Event log ............................................................................................................ 70

14.4.1 Method of measurement ............................................................................... 70

14.4.2 Required results ........................................................................................... 70

14.5 Software update .................................................................................................. 70

14.5.1 Method of measurement ............................................................................... 70

14.5.2 Required results ........................................................................................... 71

14.6 Initialization period .............................................................................................. 71

14.6.1 Method of measurement ............................................................................... 71

14.6.2 Required results ........................................................................................... 71

14.7 Technical characteristics ..................................................................................... 71

14.7.1 Channel selection ........................................................................................ 71

14.7.2 Transceiver protection .................................................................................. 71

14.7.3 Automatic power setting ............................................................................... 72

14.8 Alerts and indicators, fall-back arrangements ....................................................... 72

14.8.1 Loss of power supply ................................................................................... 72

14.8.2 Monitoring of functions and integrity ............................................................. 72

14.8.3 Monitoring of sensor data ............................................................................. 75

14.9 Display, input and output ..................................................................................... 78

14.9.1 Data input/output facilities ............................................................................ 79

14.9.2 Initiate message transmission ...................................................................... 79

14.9.3 Communication test ..................................................................................... 80

14.9.4 System control ............................................................................................. 80

14.9.5 Display of received targets ........................................................................... 81

14.9.6 Display of position quality ............................................................................. 82

14.9.7 Display of targets if optional filter is implemented ......................................... 82

14.9.8 Display of received safety related messages ................................................. 83

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SIST EN IEC 61993-2:2019
IEC 61993-2:2018 © IEC 2018 – 5 –

14.9.9 Presentation of navigation information .......................................................... 83

15 Physical tests .............................................................................................................. 83

15.1 TDMA transmitter ................................................................................................ 84

15.1.1 Frequency error ........................................................................................... 84

15.1.2 Carrier power ............................................................................................... 84

15.1.3 Slotted transmission spectrum ...................................................................... 85

15.1.4 Modulation accuracy .................................................................................... 86

15.1.5 Transmitter output power characteristics ....................................................... 86

15.2 TDMA receivers ..........................................................................

...

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