SIST EN 61996-2:2007

Maritime navigation and radiocommunication equipment and systems - Shipborne voyage data recorder (VDR) -- Part 2: Simplified voyage data recorder (S-VDR) - Performance requirements, methods of testing and required test results

This part of IEC 61996 specifies the minimum performance requirements, technical characteristics and methods of testing, and required test results, for simplified shipborne voyage data recorders (S-VDRs) as required by IMO MSC.163(78). It takes into account IMO resolution A.694(17) and is associated with IEC 60945. When a requirement in this standard is different from IEC 60945, the requirement in this standard takes precedence.

Navigations- und Funkkommunikationsgeräte und -systeme für die Seeschifffahrt - Fahrtdatenaufzeichnungsgerät auf Seeschiffen (VDR) -- Teil 2: Vereinfachtes Fahrtdatenaufzeichnungsgerät (S-VDR) - Leistungsanforderungen - Prüfverfahren und geforderte Prüfergebnisse

Matériels et systèmes de navigation et de radiocommunication maritimes - Enregistreurs des données du voyage (VDR) de bord -- Partie 2:Enregistreur des données du voyage simplifié (S-VDR) - Exigences de fonctionnement, méthodes d'essai et résultats d'essai exigibles

Pomorska navigacijska in radiokomunikacijska oprema in sistemi - Ladijski zapisovalnik podatkov o plovbi (VDR) - 2. del: Poenostavljeni zapisovalnik podatkov o plovbi (S-VDR) - Zahteve za lastnosti, preskusne metode in zahtevani rezultat preskušanja (IEC 61996-2:2006)

General Information

• Status: Withdrawn
• Publication Date: 31-Dec-2006
• Withdrawal Date: 24-Sep-2008
• ICS: 47.020.70 - Navigation and control equipment
• Technical Committee: I11 - Imaginarni 11
• Current Stage: 9900 - Withdrawal (Adopted Project)
• Start Date: 23-Sep-2008
• Due Date: 16-Oct-2008
• Completion Date: 25-Sep-2008
• Ref Project: EN 61996-2:2006 - Maritime navigation and radiocommunication equipment and systems - Shipborne voyage data recorder (VDR) - Part 2: Simplified voyage data recorder (S-VDR) - Performance requirements, methods of testing and required test results

Relations

• Revised: SIST EN 61996-2:2008 - Maritime navigation and radiocommunication equipment and systems - Shipborne voyage data recorder (VDR) -- Part 2: Simplified voyage data recorder (S-VDR) - Performance requirements, methods of testing and required test results
• Effective Date: 07-Jun-2011
• Replaced By: SIST EN 61996-2:2008 - Maritime navigation and radiocommunication equipment and systems - Shipborne voyage data recorder (VDR) -- Part 2: Simplified voyage data recorder (S-VDR) - Performance requirements, methods of testing and required test results
• Effective Date: 01-Nov-2008
• Replaced By: SIST EN 61996-2:2008 - Maritime navigation and radiocommunication equipment and systems - Shipborne voyage data recorder (VDR) -- Part 2: Simplified voyage data recorder (S-VDR) - Performance requirements, methods of testing and required test results
• Effective Date: 29-Jan-2023

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---------------------- Page: 1 ----------------------

EUROPEAN STANDARD
EN 61996-2

NORME EUROPÉENNE
June 2006
EUROPÄISCHE NORM

ICS 47.020.70

English version

Maritime navigation and radiocommunication
equipment and systems -
Shipborne voyage data recorder (VDR)
Part 2: Simplified voyage data recorder (S-VDR) -
Performance requirements, methods of testing
and required test results
(IEC 61996-2:2006)

Matériels et systèmes de navigation  Navigations- und
et de radiocommunication maritimes - Funkkommunikationsgeräte
Enregistreurs des données du voyage und -systeme für die Seeschifffahrt -
(VDR) de bord Fahrtdatenaufzeichnungsgerät auf
Partie 2: Enregistreur des données du Seeschiffen (VDR)
voyage simplifié (S-VDR) - Teil 2: Vereinfachtes
Exigences de fonctionnement, méthodes Fahrtdatenaufzeichnungsgerät (S-VDR) -
d'essai et résultats d'essai exigibles Leistungsanforderungen -
(CEI 61996-2:2006) Prüfverfahren und geforderte
Prüfergebnisse
(IEC 61996-2:2006)

This European Standard was approved by CENELEC on 2006-05-01. 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 Central Secretariat or to any CENELEC member.

This European Standard exists in two official versions (English and 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
Central Secretariat has the same status as the official versions.

CENELEC members are the national electrotechnical committees of Austria, Belgium, Cyprus, the Czech
Republic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia,
Lithuania, Luxembourg, Malta, the Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain,
Sweden, Switzerland and the United Kingdom.
CENELEC
European Committee for Electrotechnical Standardization
Comité Européen de Normalisation Electrotechnique
Europäisches Komitee für Elektrotechnische Normung

Central Secretariat: rue de Stassart 35, B - 1050 Brussels


© 2006 CENELEC - All rights of exploitation in any form and by any means reserved worldwide for CENELEC members.
Ref. No. EN 61996-2:2006 E

---------------------- Page: 2 ----------------------

EN 61996-2:2006 - 2 -

Foreword
The text of document 80/430/FDIS, future edition 1 of IEC 61996-2, prepared by IEC TC 80, Maritime
navigation and radiocommunication equipment and systems, was submitted to the IEC-CENELEC
parallel vote and was approved by CENELEC as EN 61996-2 on 2006-05-01.
The following dates were fixed:
– latest date by which the EN has to be implemented
at national level by publication of an identical
(dop) 2007-02-01
national standard or by endorsement
– latest date by which the national standards conflicting
(dow) 2009-05-01
with the EN have to be withdrawn
Annex ZA has been added by CENELEC.
__________
Endorsement notice
The text of the International Standard IEC 61996-2:2006 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 60936-1 NOTE  Harmonized as EN 60936-1:2000 (not modified).
IEC 60936-3 NOTE  Harmonized as EN 60936-3:2002 (not modified).
ISO/IEC 11674 NOTE  Harmonized as EN ISO 11674:2001 (not modified).
ISO 8728 NOTE  Harmonized as EN ISO 8728:1998 (not modified).

__________

---------------------- Page: 3 ----------------------

- 3 - EN 61996-2:2006

Annex ZA
(normative)

Normative references to international publications
with their corresponding European publications

The following referenced documents are indispensable for the application 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  When an international publication has been modified by common modifications, indicated by (mod), the relevant EN/HD
applies.

Publication Year Title EN/HD Year

IEC 60068-2-27 1987 Environmental testing - EN 60068-2-27 1993
Part 2: Tests - Test Ea and guidance: Shock


IEC 60268-16 2003 Sound system equipment - EN 60268-16 2003
Part 16: Objective rating of speech
intelligibility by speech transmission index


IEC 61672-1 2002 Electroacoustics - Sound level meters - EN 61672-1 2003
Part 1: Specifications


IEC 60945 2002 Maritime navigation and radiocommunication EN 60945 2002
equipment and systems - General
requirements - Methods of testing and
required test results


IEC 61097-2 2002 Global maritime distress and safety system - -
(GMDSS) -
Part 2: COSPAS-SARSAT EPIRB - Satellite
emergency position indicating radio beacon
operating on 406 MHz - Operational and
performance requirements, methods of
testing and required test results


IEC 61097-7 1996 Global maritime distress and safety system - -
(GMDSS) -
Part 7: Shipborne VHF radiotelephone
transmitter and receiver - Operational and
performance requirements, methods of
testing and required test results


1) 2)
IEC 61162-1 - Maritime navigation and radiocommunication EN 61162-1 2000
equipment and systems - Digital interfaces -
Part 1: Single talker and multiple listeners


1) 2)
IEC 61162-2 - Maritime navigation and radiocommunication EN 61162-2 1998
equipment and systems - Digital interfaces -
Part 2: Single talker and multiple listeners,
high-speed transmission


IEC 61260 1995 Electroacoustics - Octave-band and EN 61260 1995
fractional-octave-band filters



1)
Undated reference.
2)
Valid edition at date of issue.

---------------------- Page: 4 ----------------------

EN 61996-2:2006 - 4 -
Publication Year Title EN/HD Year
1)
IMO A.658(16) - Use and fitting of retro-reflective materials on - -
life-saving appliances


1)
IMO A.662(16) - Performance standards for float-free release - -
and activation arrangements for emergency
radio equipment


1)
IMO A.694(17) - General requirements for shipborne radio - -
equipment forming part of the global maritime
distress and safety system (GMDSS) and for
electronic navigational aids


1)
IMO A.810(19) - Performance standards for float-free satellite - -
emergency position-indicating radio beacons
(EPIRBs) operating on 406 MHz


1)
IMO A.830(19) - Code on alarms and indicators - -


1)
IMO A.861(20) - Performance standards for shipborne voyage - -
data recorders (VDRs)


1)
IMO MSC.81(70) - Testing of life saving appliances - -


1)
IMO MSC.163(78) - Performance standards for shipborne - -
simplified voyage data recorders (S-VDR)


IMO 1974 International Convention on Safety of Life at - -
Sea (SOLAS)


ITU-R M.633-3 2004 Transmission characteristics of a satellite - -
emergency position-indicating radiobeacon
(satellite EPIRB) system operating through a
low polar-orbiting satellite system in the
406 MHz band.


1)
Eurocae:ED56A - Minimum operational performance - -
Amendment 1 specification (MOPS) for cockpit voice
recorder system


VESA 1996 Video electronics standards association - - -
Discrete monitor timings standard 1.0,
Revision 0.7 (DMT)


SAE AS 8045 1988 Minimum performance standard for - -
underwater locating devices (acoustic) (self-
powered)

---------------------- Page: 5 ----------------------

INTERNATIONAL IEC


STANDARD 61996-2





First edition
2006-03


Maritime navigation and radiocommunication
equipment and systems –
Shipborne voyage data recorder (VDR) –
Part 2:
Simplified voyage data recorder (S-VDR) –
Performance requirements, methods of
testing and required test results

 IEC 2006  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
XA
Commission Electrotechnique Internationale
International Electrotechnical Commission
МеждународнаяЭлектротехническаяКомиссия
For price, see current catalogue

---------------------- Page: 6 ----------------------

– 2 – 61996-2  IEC:2006(E)
CONTENTS
FOREWORD.4
INTRODUCTION.6

1 Scope.7
2 Normative references .7
3 Terms, definitions and abbreviations .8
4 Performance requirements .10
4.1 General .10
4.2 Purpose .11
4.3 Operational requirements .11
4.4 Data selection and security .13
4.5 Continuity of operation .14
4.6 Data items to be recorded .15
5 Technical characteristics .18
5.1 Co-relation in date and time .18
5.2 Particular design requirements for the protective capsule.18
5.3 Location beacon(s) for the protective capsule.19
5.4 Survivability of recorded data .20
5.5 Information to be included in the manufacturer’s documentation.20
5.6 Bridge audio specifications.21
5.7 Communications audio .22
5.8 Radar data – post-display selection.23
6 Methods of testing and required test results .24
6.1 General .24
6.2 Data items to be recorded .31

Annex A (informative) IEC 61162 sentence formats .47
Annex B (informative) Cross-references between VDR and S-VDR .48
Annex C (informative)  SN/Circ.246 Recommended means for extracting stored data
from voyage data recorders (VDRs) and simplified voyage data recorders (S-VDRs) for
investigation authorities .49
Annex D (informative) Mandatory alarms .50
Annex E (informative) Requirement/test – cross-references .52

Bibliography.54

Figure 1 – Test set-up block diagram .39
Figure 2 – Comparison of images .42

Table 1 – Bridge audio, signal to noise measurements .33
Table 2 – Bridge audio, signal to noise and distortion (SINAD) measurements.34
Table 3 – Communications audio, signal to no-signal measurements .36
Table 4 – Communications audio, signal to noise and distortion (SINAD) measurements .37
Table 5 – Intersection colours of test images 1 and 2.41

---------------------- Page: 7 ----------------------

61996-2  IEC:2006(E) – 3 –
Table A.1 – References in this standard .47
Table B.1 – Subject list and clauses .48
Table D.1 – IMO instrument: SOLAS Chapter II-1 .50
Table D.2 – IMO instrument: SOLAS Chapter II-2 .51
Table D.3 – IMO instrument: Resolution A.481.51
Table E.1 – Subject list and clauses .52

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– 4 – 61996-2  IEC:2006(E)
INTERNATIONAL ELECTROTECHNICAL COMMISSION
____________

MARITIME NAVIGATION AND RADIOCOMMUNICATION
EQUIPMENT AND SYSTEMS –
SHIPBORNE VOYAGE DATA RECORDER (VDR) –

Part 2: Simplified voyage data recorder (S-VDR) –
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 or any other IEC
Publications.
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.
9) Attention is drawn to the possibility that some of the elements of this IEC Publication may be the subject of
patent rights. IEC shall not be held responsible for identifying any or all such patent rights.
International Standard IEC 61996-2 has been prepared by IEC technical committee 80:
Maritime navigation and radiocommunication equipment and systems.
This standard cancels and replaces IEC PAS 61996-2 published in 2005. This first edition
constitutes a technical revision and additionally incorporates new IMO recommendations on
means for extracting data from the S-VDR.

---------------------- Page: 9 ----------------------

61996-2  IEC:2006(E) – 5 –
The text of this standard is based on the following documents:
FDIS Report on voting
80/430/FDIS 80/439/RVD

Full information on the voting for the approval of this standard can be found in the report on
voting indicated in the above table.
This publication has been drafted in accordance with the ISO/IEC Directives, Part 2.
IEC 61996 consists of the following parts under the general title Maritime navigation and
radiocommunication equipment and systems – Shipborne voyage data recorder (VDR):
Part 1: Performance requirements, methods of testing and required test results
Part 2: Simplified voyage data recorder (S-VDR) – Performance requirements, methods of
testing and required test results.
The committee has decided that the contents of this publication will remain unchanged until
the maintenance result date indicated on the IEC web site under "http://webstore.iec.ch" in
the data related to the specific publication. At this date, the publication will be
• reconfirmed,
• withdrawn,
• replaced by a revised edition, or
• amended.
A bilingual version of this publication may be issued at a later date.

---------------------- Page: 10 ----------------------

– 6 – 61996-2  IEC:2006(E)
INTRODUCTION
The S-VDR has been introduced by IMO for fitting to existing ships as a simplified alternative
to the voyage data recorder (VDR) which is required for all new ships.
This part of IEC 61996 provides information on the testing requirements for S-VDR as defined
in IMO performance standard MSC.163(78).
The specification for S-VDR differs significantly from that for VDR in two areas:
a) the requirements for monitoring certain sensors are reduced when the data is not
provided in IEC 61162 format, and
b) the requirements for the protective S-VDR capsule are different from the VDR capsule,
both for the fixed and float-free versions.
Annex B provides a cross-reference between this standard and IEC 61996-1 to aid test
houses who may already have test results for VDRs which are being submitted as S-VDRs.
Subsequent to publishing the performance standard for S-VDR, MSC.163(78), in 2004, the
IMO sub-committee on Safety of Navigation (NAV) at its fifty-first session in June 2005,
discussed the issue of download and playback of information. Recognising that after an
accident there is a need for investigators to be able to download the stored data and playback
the information from VDRs/S-VDRs without delay, the sub-committee agreed on
recommended means for extracting stored data for investigation authorities as SN/Circ.246.
This Circular is reproduced as Annex C and its recommendations are referenced in this
standard.

---------------------- Page: 11 ----------------------

61996-2  IEC:2006(E) – 7 –
MARITIME NAVIGATION AND RADIOCOMMUNICATION
EQUIPMENT AND SYSTEMS –
SHIPBORNE VOYAGE DATA RECORDER (VDR) –

Part 2: Simplified voyage data recorder (S-VDR) –
Performance requirements,
methods of testing and required test results



1 Scope
This part of IEC 61996 specifies the minimum performance requirements, technical
characteristics and methods of testing, and required test results, for simplified shipborne
voyage data recorders (S-VDRs) as required by IMO MSC.163(78). It takes into account IMO
resolution A.694(17) and is associated with IEC 60945. When a requirement in this standard
is different from IEC 60945, the requirement in this standard takes precedence.
NOTE All text of this standard, whose wording is identical to that of IMO MSC.163(78) or A.861(20) is printed in
italics, and the Resolution and associated performance standard paragraph numbers are indicated in brackets.
2 Normative references
The following referenced documents are indispensable for the application 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.
IEC 60068-2-27:1987, Environmental testing – Part 2: Tests – Test Ea and guidance: Shock
IEC 60268-16:2003, Sound system equipment – Part 16: Objective rating of speech
intelligibility by speech transmission index
IEC 61672-1:2002, Electroacoustics – Sound level meters – Part 1: Specifications
IEC 60945:2002, Maritime navigation and radiocommunication equipment and systems –
General requirements – Methods of testing and required test results
IEC 61097-2:2002, Global maritime distress and safety system (GMDSS) – Part 2: COSPAS
SARSAT EPIRB – Satellite emergency position-indicating radio beacon operating on 406 MHz
– Operational and performance requirements, methods of testing and required test results
IEC 61097-7:1996, Global maritime distress and safety system (GMDSS) – Part 7: Shipborne
VHF radiotelephone transmitter and receiver – Operational and performance requirements,
methods of testing and required test results
IEC 61162-1, Maritime navigation and radiocommunication equipment and systems – Digital
interfaces – Part 1: Single talker and multiple listeners
IEC 61162-2, Maritime navigation and radiocommunication equipment and systems – Digital
interfaces – Part 2: Single talker and multiple listeners, high-speed transmission
IEC 61260:1995, Electroacoustics – Octave-band and fractional-octave-band filters

---------------------- Page: 12 ----------------------

– 8 – 61996-2  IEC:2006(E)
IMO A.658(16): Use and fitting of retro-reflective materials on life-saving appliances
IMO A.662(16): Performance standards for float-free release and activation arrangements for
emergency radio equipment
IMO A.694(17): General requirements for shipborne radio equipment forming part of the
Global maritime distress and safety system (GMDSS) and for electronic navigational aids
IMO A.810(19): Performance standards for float-free satellite emergency position-indicating
radio beacons (EPIRBs) operating on 406 MHz
IMO A.830(19): Code on alarms and indicators
IMO A.861(20): Performance standards for shipborne voyage data recorders (VDRs)
IMO MSC.81(70): Testing of life saving appliances
IMO MSC.163(78): Performance standards for shipborne simplified voyage data recorders
(S-VDR).
IMO:1974, International Convention for the Safety of Life at Sea (SOLAS), as amended
ITU-R M.633-3:2004, Transmission characteristics of a satellite emergency position-indicating
radiobeacon (satellite EPIRB) system operating through a low polar-orbiting satellite system
in the 406 MHz band
Eurocae: ED56A Amendment 1 – Minimum operational performance specification (MOPS) for
cockpit voice recorder system
VESA:1996, Video electronics standards association – Discrete monitor timings standard 1.0,
Revision 0.7 (DMT)
SAE AS 8045:1988, Engineering Society for advancing mobility land sea air and space –
Minimum performance standard for underwater locating devices – acoustic-self-powered
3 Terms, definitions and abbreviations
For the purposes of this document, the following terms, definitions and abbreviations apply.
3.1 Definitions
3.1.1
activation of a suitable alarm
mutable audible alarm and persistent visual indication, given according to the requirements of
IMO A.830(19) but with an audible level in the range of 55 dBA to 65 dBA
3.1.2
combined EPIRB/S-VDR capsule
a single unit which meets all the requirements of a satellite EPIRB (as required by the
carriage requirements of SOLAS IV) and all the requirements of a S-VDR (as required by the
carriage requirements of SOLAS V)

---------------------- Page: 13 ----------------------

61996-2  IEC:2006(E) – 9 –
3.1.3
bridge work station
position at which a person is expected to be when performing one of the normal bridge duties
at, for example, the following work stations:
• centre line conning
• bridge wing(s)
• main radar
• chart table
• helms
• communication
3.1.4
data
any item of information received by the S-VDR for recording, including numerical values, text
and audio or radar signals, except where specifically stated or the context dictates otherwise
3.1.5
dedicated reserve power source (MSC.163(78) 4.5)
secondary battery, with suitable automatic charging arrangements, dedicated solely to the S-
VDR, of sufficient capacity to operate it as required by 4.5.3
3.1.6
final recording medium (MSC.163(78) 4.3)
any item of hardware on which the data is recorded such that access to it would enable the
data to be recovered and played back by use of suitable equipment
3.1.7
playback equipment (MSC.163(78) 4.4)
any equipment, compatible with the recording medium and the format used during recording,
employed for recovering the data. It includes also the display or presentation hardware and
software that is appropriate to the original data source equipment
3.1.8
recorder (S-VDR) (MSC.163(78) 4.1)
complete system, including any items required to interface with the sources of input data, for
processing and encoding the data, the final recording medium in its capsule, the power supply
and dedicated reserve power source
3.1.9
resolution
smallest detectable increment between two values
3.1.10
sensor (MSC.163(78) 4.2)
any unit external to the S-VDR to which the S-VDR is connected and from which it obtains
data to be recorded
3.2 Abbreviations
AIS Automatic identification system
ALR IEC 61162 sentence: Set alarm state
DPT IEC 61162 sentence: Depth relative to the transducer
DTM IEC 61162 sentence: Geodetic datum reference
EPFS Electronic position fixing system
EPIRB Emergency position-indicating radio beacon

---------------------- Page: 14 ----------------------

– 10 – 61996-2  IEC:2006(E)
EUT Equipment under test
GMDSS Global maritime distress and safety system
GNS IEC 61162 sentence: GNSS fix data
GNSS Global navigation satellite system
HDG IEC 61162 sentence: Magnetic compass heading
HDT IEC 61162 sentence: True heading
HTC IEC 61162 sentence: Heading/track control command
HTD IEC 61162 sentence: Heading/track control data
IMO International Maritime Organization
INS Integrated navigation system
ITU International Telecommunication Union
MWV IEC 61162 sentence: Wind speed and angle
OOW Officer of the watch
ROV Remotely operated vehicle
RPM IEC 61162 sentence: Revolutions per minute
RSA IEC 61162 sentence: Rudder sense angle
SAR Search and rescue
SENC System electronic navigation chart
SINAD Signal to noise and distortion
STI Sound transmission index
TXT IEC 61162 sentence: Text message
UTC Coordinated universal time
VDM IEC 61162 sentence: AIS – VHF data link message
VDO IEC 61162 sentence: AIS – VHF data link own-vessel message
VHF Very high frequency
VBW IEC 61162 sentence: Dual ground water speed
XDR IEC 61162 sentence: Transducer measurements
ZDA IEC 61162 sentence: Time and date
NOTE For IEC 61162 sentences, see Annex A.
4 Performance requirements
Performance requirements described in the following clauses are specified, where relevant,
by reference to the numbered paragraphs of IMO MSC.163(78), if not otherwise indicated.
4.1 General
Requirements specified in this standar
...