SIST EN 301 025-3 V1.3.1:2007

• Abstract:

  The present document covers the minimum requirements for general communication for shipborne fixed installations using a VHF radiotelephone operating in certain frequency bands allocated to the maritime mobile service using both 25 kHz and 12,5 kHz channels with associated equipment for DSC - class D. The present document is intended to cover the provisions of Directive 1999/5/EC [1] (R&TTE Directive) article 3.3 (e), which states that radio equipment within the scope of the present document shall be so constructed that: "it supports certain features ensuring access to emergency services". In addition to the present document, other ENs that specify technical requirements in respect of essential requirements under other parts of article 3 of the R&TTE Directive [1] will apply to equipment within the scope of the present document.

• Status: Published
• Publication Date: 05-Nov-2007
• ICS: 33.060.99 - Other equipment for radiocommunications
• ICS: 33.100.01 - Electromagnetic compatibility in general
• Technical Committee: MOC - Mobile Communications
• Current Stage: 6060 - National Implementation/Publication (Adopted Project)
• Start Date: 05-Nov-2007
• Due Date: 10-Jan-2008
• Completion Date: 06-Nov-2007
• Directive: 1999/5/EC - Directive 1999/5/EC of the European Parliament and of the Council of 9 March 1999 on radio equipment and telecommunications terminal equipment and the mutual recognition of their conformity
• Mandate: M/357
• Ref Project: ETSI EN 301 025-3 V1.3.1 (2007-02) - Electromagnetic compatibility and Radio spectrum Matters (ERM); VHF radiotelephone equipment for general communications and associated equipment for Class D Digital Selective Calling (DSC); Part 3: Harmonized EN under article 3.3 (e) of the R&TTE Directive

• Official Journal Project Relation: SIST EN 301 025-3 V1.2.1:2005 - Electromagnetic compatibility and Radio spectrum Matters (ERM); VHF radiotelephone equipment for general communications and associated equipment for Class D Digital Selective Calling (DSC); Part 3: Harmonized EN under article 3.3 (e) of the R&TTE Directive
• Effective Date: 01-Dec-2009

Overview

SIST EN 301 025-3 V1.3.1:2007 is a European harmonized standard that specifies the minimum requirements for electromagnetic compatibility and radio spectrum matters (ERM) for shipborne fixed installations of VHF radiotelephone equipment. This standard also addresses the associated equipment supporting Class D Digital Selective Calling (DSC) for general communications, covering certain frequency bands allocated to the maritime mobile service and using both 25 kHz and 12.5 kHz channels.

The document fulfills the requirements of Article 3.3(e) of the R&TTE Directive 1999/5/EC, which ensures that radio equipment supports essential features for access to emergency services. This standard provides a framework for manufacturers and ship operators to achieve compliance with maritime safety regulations and guarantees interoperability and reliability for VHF radiocommunications equipment.

Key Topics

• Electromagnetic Compatibility (EMC): Minimum EMC requirements for VHF radio equipment to minimize interference.
• Radio Spectrum Usage: Ensures equipment operates within specified VHF maritime mobile frequency bands.
• Class D Digital Selective Calling (DSC): Specifies the equipment features for DSC-enabling distress, urgency, safety, and routine calling.
• Environmental Testing: Procedures for verifying performance under vibration, temperature changes (dry heat, damp heat, low temperature), and operational stresses.
• General and Technical Requirements: Conformance criteria covering modulation sensitivity, audio frequency response, harmonic distortion, frequency error, and squelch operation.
• Emergency Services Access: Ensures that equipment construction meets the requirement to support access to maritime emergency services.
• Test Methods: Outlines test suites for compliance assessment, including environmental and performance checks.

Applications

SIST EN 301 025-3 V1.3.1:2007 is critical for:

• Shipborne Communication Systems: Applicable to fixed VHF radiotelephone installations on vessels, ensuring robust, reliable communication at sea.
• Maritime Safety: Supports the Global Maritime Distress and Safety System (GMDSS) functions for non-SOLAS vessels, enhancing safety of life at sea.
• Regulatory Compliance: Assists manufacturers in certifying VHF radio equipment to meet European maritime legislative requirements under the R&TTE Directive.
• Routine and Emergency Communication: Facilitates both daily operational communications and vital distress or safety alerts through DSC functionality.
• Marine Regulatory Inspections: Provides a recognized compliance reference for maritime authorities and certification bodies.

Related Standards

• EN 301 025-1: Technical characteristics and methods of measurement for VHF radiotelephone equipment and Class D DSC associated equipment.
• EN 301 025-2: Harmonized EN under Article 3.2 of the R&TTE Directive for the same scope.
• ITU-R Recommendation M.493-11: Digital Selective Calling system specifications for maritime mobile services.
• EC Decision 2004/71/EC: Essential requirements for marine radio equipment used on non-SOLAS vessels within the GMDSS framework.

Keywords: VHF radiotelephone, Class D DSC, electromagnetic compatibility, radio spectrum, maritime mobile, R&TTE Directive, EU standards, shipborne radio, emergency communications, marine safety

By aligning with SIST EN 301 025-3 V1.3.1:2007, stakeholders in the maritime industry ensure that radiocommunication equipment is safe, reliable, and compliant with current European regulatory requirements-reinforcing essential communication and emergency response capabilities at sea.

SLOVENSKI STANDARD
01-december-2007
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Electromagnetic compatibility and Radio spectrum Matters (ERM) - VHF radiotelephone
equipment for general communications and associated equipment for Class D Digital
Selective Calling (DSC) - Part 3: Harmonized EN under article 3.3 (e) of the R&TTE
Directive
Ta slovenski standard je istoveten z: EN 301 025-3 Version 1.3.1
ICS:
33.060.99 Druga oprema za radijske Other equipment for
komunikacije radiocommunications
33.100.01 Elektromagnetna združljivost Electromagnetic compatibility
na splošno in general
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

Harmonized European Standard (Telecommunications series)

Electromagnetic compatibility
and Radio spectrum Matters (ERM);
VHF radiotelephone equipment for general communications
and associated equipment for Class "D"
Digital Selective Calling (DSC);
Part 3: Harmonized EN under article 3.3 (e)
of the R&TTE Directive
2 ETSI EN 301 025-3 V1.3.1 (2007-02)

Reference
REN/ERM-TG26-074-3
Keywords
maritime, radio, regulation, traffic, VHF
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ETSI
3 ETSI EN 301 025-3 V1.3.1 (2007-02)
Contents
Intellectual Property Rights.6
Foreword.6
1 Scope.7
2 References.7
3 Definitions and abbreviations.8
3.1 Definitions.8
3.2 Abbreviations.8
4 Technical requirements specifications.8
4.1 Environmental profile.8
4.2 General, operational and technical requirements.9
4.2.1 General and operational requirements .9
4.2.1.1 Requirements.9
4.2.1.2 Conformance.9
4.2.2 Technical requirements.9
4.2.2.1 Requirements.9
4.2.2.2 Conformance.9
4.3 Environmental requirements.9
4.3.1 Vibration test.9
4.3.1.1 Definition.9
4.3.1.2 Requirement.9
4.3.1.3 Conformance.9
4.3.2 Temperature tests.9
4.3.2.1 Definition.9
4.3.2.2 Dry heat.9
4.3.2.2.1 Definition.9
4.3.2.2.2 Requirement.10
4.3.2.2.3 Conformance.10
4.3.2.3 Damp heat.10
4.3.2.3.1 Definition.10
4.3.2.3.2 Requirement.10
4.3.2.3.3 Conformance.10
4.3.2.4 Low temperature.10
4.3.2.4.1 Definition.10
4.3.2.4.2 Requirement.10
4.3.2.4.3 Conformance.10
4.4 Conformance requirements.10
4.4.1 Sensitivity of the modulator, including microphone.10
4.4.1.1 Definition.10
4.4.1.2 Limit.10
4.4.1.3 Conformance.10
4.4.2 Audio frequency response .11
4.4.2.1 Definition.11
4.4.2.2 Limit.11
4.4.2.3 Conformance.11
4.4.3 Audio frequency harmonic distortion of the emission.11
4.4.3.1 Definition.11
4.4.3.2 Limit.11
4.4.3.3 Conformance.11
4.4.4 Residual modulation of the transmitter.11
4.4.4.1 Definition.11
4.4.4.2 Limit.11
4.4.4.3 Conformance.11
4.4.5 Frequency error (demodulated DSC signal) .11
4.4.5.1 Definition.11
ETSI
4 ETSI EN 301 025-3 V1.3.1 (2007-02)
4.4.5.2 Limit.11
4.4.5.3 Conformance.11
4.4.6 Modulation index for DSC .12
4.4.6.1 Definition.12
4.4.6.2 Limit.12
4.4.6.3 Conformance.12
4.4.7 Modulation rate for DSC .12
4.4.7.1 Definition.12
4.4.7.2 Limit.12
4.4.7.3 Conformance.12
4.4.8 Testing of generated call sequences.12
4.4.8.1 Definition.12
4.4.8.2 Limit.12
4.4.8.3 Conformance.12
4.4.9 Harmonic distortion and rated audio-frequency output power .12
4.4.9.1 Definition.12
4.4.9.2 Limit.12
4.4.9.3 Conformance.12
4.4.10 Receiver audio frequency response .13
4.4.10.1 Definition.13
4.4.10.2 Limit.13
4.4.10.3 Conformance.13
4.4.11 Receiver residual noise level .13
4.4.11.1 Definition.13
4.4.11.2 Limit.13
4.4.11.3 Conformance.13
4.4.12 Squelch operation.13
4.4.12.1 Definition.13
4.4.12.2 Limit.13
4.4.12.3 Conformance.13
4.4.13 Squelch hysteresis.13
4.4.13.1 Definition.13
4.4.13.2 Limit.13
4.4.13.3 Conformance.13
4.4.14 Dynamic range.14
4.4.14.1 Definition.14
4.4.14.2 Limit.14
4.4.14.3 Conformance.14
4.4.15 Verification of correct decoding of various types of DSC calls .14
4.4.15.1 Definition.14
4.4.15.2 Limit.14
4.4.15.3 Conformance.14
5 Testing for compliance with technical requirements.14
5.1 Test conditions, power supply and ambient temperatures.14
5.2 Interpretation of the measurement results .14
5.3 Essential radio test suites.15
5.3.1 Environmental tests.15
5.3.1.1 Introduction.15
5.3.1.2 Procedure.15
5.3.1.3 Performance check.15
5.3.1.4 Vibration test.15
5.3.1.4.1 Definition.15
5.3.1.4.2 Limit.15
5.3.1.4.3 Conformance.15
5.3.1.5 Temperature tests.15
5.3.1.5.1 Dry heat.15
5.3.1.5.1.1 Definition.15
5.3.1.5.1.2 Limit.15
5.3.1.5.1.3 Conformance.16
5.3.1.5.2 Damp heat.16
5.3.1.5.2.1 Definition.16
ETSI
5 ETSI EN 301 025-3 V1.3.1 (2007-02)
5.3.1.5.2.2 Limit.16
5.3.1.5.2.3 Conformance.16
5.3.1.5.3 Low temperature.16
5.3.1.5.3.1 Definition.16
5.3.1.5.3.2 Limit.16
5.3.1.5.3.3 Conformance.16
5.3.2 Conformance tests.16
5.3.2.1 Sensitivity of the modulator, including microphone .16
5.3.2.2 Audio frequency response.16
5.3.2.3 Audio frequency harmonic distortion of the emission .16
5.3.2.4 Residual modulation of the transmitter .16
5.3.2.5 Frequency error (demodulated DSC signal).16
5.3.2.6 Modulation index for DSC.17
5.3.2.7 Modulation rate for DSC.17
5.3.2.8 Testing of generated call sequences .17
5.4 Other test suites.17
5.4.1 General.17
5.4.2 Harmonic distortion and rated audio-frequency output power .17
5.4.3 Receiver audio frequency response .17
5.4.4 Receiver residual noise level .17
5.4.5 Squelch operation.17
5.4.6 Squelch hysteresis.17
5.4.7 Dynamic range.17
5.4.8 Verification of correct decoding of various types of DSC calls .17
Annex A (normative): HS Requirement and conformance Test specifications Table (HS-
RTT).18
Annex B (informative): The EN title in the official languages .21
Annex C (informative): Bibliography.23
History .24

ETSI
6 ETSI EN 301 025-3 V1.3.1 (2007-02)
Intellectual Property Rights
IPRs essential or potentially essential to the present document may have been declared to ETSI. The information
pertaining to these essential IPRs, if any, is publicly available for ETSI members and non-members, and can be found
in ETSI SR 000 314: "Intellectual Property Rights (IPRs); Essential, or potentially Essential, IPRs notified to ETSI in
respect of ETSI standards", which is available from the ETSI Secretariat. Latest updates are available on the ETSI Web
server (http://webapp.etsi.org/IPR/home.asp).
Pursuant to the ETSI IPR Policy, no investigation, including IPR searches, has been carried out by ETSI. No guarantee
can be given as to the existence of other IPRs not referenced in ETSI SR 000 314 (or the updates on the ETSI Web
server) which are, or may be, or may become, essential to the present document.
Foreword
This Harmonized European Standard (Telecommunications series) has been produced by ETSI Technical Committee
Electromagnetic compatibility and Radio spectrum Matters (ERM).
The present document has been produced by ETSI in response to a mandate from the European Commission issued
under Council Directive 98/34/EC laying down a procedure for the provision of information in the field of technical
standards and regulations and following the Commission Decision 2000/638/EC of 22 September 2000.
The present document is intended to become a Harmonized Standard, the reference of which will be published in the
Official Journal of the European Communities referencing the Directive 1999/5/EC [1] of the European Parliament and
of the Council of 9 March 1999 on radio equipment and telecommunications terminal equipment and the mutual
recognition of their conformity ("the R&TTE Directive").
The present document is part 3 of a multi-part deliverable covering the Electromagnetic compatibility and Radio
spectrum Matters (ERM); VHF radiotelephone equipment for general communications and associated equipment for
Class "D" Digital Selective Calling (DSC), as identified below:
Part 1: "Technical characteristics and methods of measurement";
Part 2: "Harmonized EN under article 3.2 of the R&TTE Directive";
Part 3: "Harmonized EN under article 3.3 (e) of the R&TTE Directive".
National transposition dates
Date of adoption of this EN: 19 January 2007
Date of latest announcement of this EN (doa): 30 April 2007
Date of latest publication of new National Standard
or endorsement of this EN (dop/e): 31 October 2007
Date of withdrawal of any conflicting National Standard (dow): 31 October 2008

ETSI
7 ETSI EN 301 025-3 V1.3.1 (2007-02)
1 Scope
The present document covers the minimum requirements for general communication for shipborne fixed installations using
a VHF radiotelephone operating in certain frequency bands allocated to the maritime mobile service using both 25 kHz
and 12,5 kHz channels with associated equipment for DSC - class D.
The present document is intended to cover the provisions of Directive 1999/5/EC [1] (R&TTE Directive) article 3.3 (e),
which states that radio equipment within the scope of the present document shall be so constructed that: "it supports
certain features ensuring access to emergency services".
In addition to the present document, other ENs that specify technical requirements in respect of essential requirements
under other parts of article 3 of the R&TTE Directive [1] will apply to equipment within the scope of the present
document.
NOTE: A list of such ENs is included on the web site http://www.newapproach.org/.
2 References
The following documents contain provisions which, through reference in this text, constitute provisions of the present
document.
• References are either specific (identified by date of publication and/or edition number or version number) or
non-specific.
• For a specific reference, subsequent revisions do not apply.
• For a non-specific reference, the latest version applies.
Referenced documents which are not found to be publicly available in the expected location might be found at
http://docbox.etsi.org/Reference.
NOTE: While any hyperlinks included in this clause were valid at the time of publication ETSI cannot guarantee
their long term validity.
[1] Directive 1999/5/EC of the European Parliament and of the Council of 9 March 1999 on radio
equipment and telecommunications terminal equipment and the mutual recognition of their
conformity (R&TTE Directive).
[2] ITU-R Recommendation M.493-11 (2004): "Digital selective-calling system for use in the
maritime mobile service".
[3] ETSI EN 301 025-1 (V1.3.1): "Electromagnetic compatibility and Radio spectrum Matters (ERM);
VHF radiotelephone equipment for general communications and associated equipment for Class
"D" Digital Selective Calling (DSC); Part 1: Technical characteristics and methods of
measurement".
[4] EC decision 2004/71/EC of 4 September 2003 on essential requirements relating to marine radio
communication equipment which is intended to be used on non-SOLAS vessels and to participate
in the Global Maritime Distress and Safety System (GMDSS).
[5] ETSI TR 100 028-1 (V1.4.1): "Electromagnetic compatibility and Radio spectrum Matters (ERM);
Uncertainties in the measurement of mobile radio equipment characteristics; Part 1".
ETSI
8 ETSI EN 301 025-3 V1.3.1 (2007-02)
3 Definitions and abbreviations
3.1 Definitions
For the purposes of the present document, the terms and definitions given in the R&TTE Directive [1] and the following
apply:
class D: class D equipment i
...