SIST EN 301 025-3 V1.2.1:2005

SLOVENSKI STANDARD
01-februar-2005
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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 1.2.1
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.

ETSI EN 301 025-3 V1.2.1 (2004-09)
Candidate 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 V1.2.1 (2004-09)

Reference
REN/ERM-TG26-057-3
Keywords
maritime, radio, regulation, traffic, VHF
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ETSI
3 ETSI EN 301 025-3 V1.2.1 (2004-09)
Contents
Intellectual Property Rights.7
Foreword.7
Introduction .8
1 Scope.10
2 References.10
3 Definitions and abbreviations.11
3.1 Definitions.11
3.2 Abbreviations.11
4 Technical requirements specifications.12
4.1 Environmental profile.12
4.2 General, operational and technical requirements.12
4.2.1 General and operational requirements .12
4.2.1.1 Composition.12
4.2.1.2 Construction.12
4.2.1.3 Controls and indicators .12
4.2.1.4 Facilities for coding and decoding of DSC .13
4.2.1.4.1 Call functions.13
4.2.1.4.2 MANUAL calls.14
4.2.1.4.3 Distress calls.14
4.2.1.4.4 ALL SHIPS calls .14
4.2.1.4.5 Incoming calls.15
4.2.1.4.6 Other calls.15
4.2.1.5 DSC display.15
4.2.1.6 Handset and loudspeaker.15
4.2.1.7 Safety precautions.15
4.2.1.8 Labelling.16
4.2.1.9 Warm up.16
4.2.2 Technical requirements.16
4.2.2.1 Switching time.16
4.2.2.2 Class of emission and modulation characteristics .16
4.2.2.3 Facilities for DSC transmission and reception .16
4.2.2.3.1 General.16
4.2.2.3.2 Decoding.16
4.2.2.3.3 Automatic acknowledgement.17
4.2.2.3.4 Automatic re-transmission of distress calls .17
4.2.2.4 Ships identity - MMSI and Group MMSI .17
4.2.2.5 Entry of position information.17
4.2.2.6 Alarm circuits.17
4.2.2.6.1 Distress and urgency.17
4.2.2.6.2 Other categories.18
4.2.2.6.3 Acoustic alarms.18
4.2.2.6.4 Cancellation of alarms.18
4.2.2.7 Facilities for automatic identification.18
4.2.2.8 Multiple watch facilities.18
4.2.2.8.1 General.18
4.2.2.8.2 Scanning provisions.18
4.2.2.8.3 Scanning characteristics.19
4.3 Environmental requirements.19
4.3.1 Vibration test.19
4.3.1.1 Definition.19
4.3.1.2 Requirement.19
4.3.1.3 Conformance.19
4.3.2 Temperature tests.19
ETSI
4 ETSI EN 301 025-3 V1.2.1 (2004-09)
4.3.2.1 Definition.19
4.3.2.2 Dry heat.19
4.3.2.2.1 Definition.19
4.3.2.2.2 Requirement.19
4.3.2.2.3 Conformance.20
4.3.2.3 Damp heat.20
4.3.2.3.1 Definition.20
4.3.2.3.2 Requirement.20
4.3.2.3.3 Conformance.20
4.3.2.4 Low temperature.20
4.3.2.4.1 Definition.20
4.3.2.4.2 Requirement.20
4.3.2.4.3 Conformance.20
4.4 Conformance requirements.20
4.4.1 Sensitivity of the modulator, including microphone.20
4.4.1.1 Definition.20
4.4.1.2 Limit.20
4.4.1.3 Conformance.20
4.4.2 Audio frequency response .20
4.4.2.1 Definition.20
4.4.2.2 Limit.21
4.4.2.3 Conformance.21
4.4.3 Audio frequency harmonic distortion of the emission.21
4.4.3.1 Definition.21
4.4.3.2 Limit.21
4.4.3.3 Conformance.21
4.4.4 Residual modulation of the transmitter.22
4.4.4.1 Definition.22
4.4.4.2 Limit.22
4.4.4.3 Conformance.22
4.4.5 Testing of generated call sequences.22
4.4.5.1 Definition.22
4.4.5.2 Limit.22
4.4.5.3 Conformance.22
4.4.6 Harmonic distortion and rated audio-frequency output power .22
4.4.6.1 Definition.22
4.4.6.2 Limit.22
4.4.6.3 Conformance.23
4.4.7 Receiver audio frequency response .23
4.4.7.1 Definition.23
4.4.7.2 Limit.23
4.4.7.3 Conformance.23
4.4.8 Radio-telephone receiver Maximum Usable Sensitivity.24
4.4.8.1 Definition.24
4.4.8.2 Limits.24
4.4.8.3 Conformance.24
4.4.9 Radio-telephone receiver co-channel rejection.24
4.4.9.1 Definition.24
4.4.9.2 Limit.24
4.4.9.3 Conformance.24
4.4.10 Radio-telephone receiver adjacent channel selectivity .24
4.4.10.1 Definition.24
4.4.10.2 Limits.24
4.4.10.3 Conformance.24
4.4.11 Radio-telephone receiver spurious response rejection.25
4.4.11.1 Definition.25
4.4.11.2 Limit.25
4.4.11.3 Conformance.25
4.4.12 Radio-telephone receiver intermodulation response.25
4.4.12.1 Definition.25
4.4.12.2 Limit.25
4.4.12.3 Conformance.25
ETSI
5 ETSI EN 301 025-3 V1.2.1 (2004-09)
4.4.13 Radio-telephone receiver blocking or desensitization .25
4.4.13.1 Definition.25
4.4.13.2 Limit.25
4.4.13.3 Conformance.25
4.4.14 Receiver residual noise level .25
4.4.14.1 Definition.25
4.4.14.2 Limit.26
4.4.14.3 Conformance.26
4.4.15 Squelch operation.26
4.4.15.1 Definition.26
4.4.15.2 Limit.26
4.4.15.3 Conformance.26
4.4.16 Squelch hysteresis.26
4.4.16.1 Definition.26
4.4.16.2 Limit.26
4.4.16.3 Conformance.26
4.4.17 Dynamic range.26
4.4.17.1 Definition.26
4.4.17.2 Limit.26
4.4.17.3 Conformance.27
4.4.18 Verification of correct decoding of various types of DSC calls .27
4.4.18.1 Definition.27
4.4.18.2 Limit.27
4.4.18.3 Conformance.27
5 Testing for compliance with technical requirements.27
5.1 Test conditions, power supply and ambient temperatures.27
5.1.1 Arrangements for test signals applied to the receiver input .27
5.1.2 Squelch.27
5.1.3 Normal test modulation.27
5.1.4 Artificial antenna.28
5.1.5 Arrangements for test signals applied to the transmitter input.28
5.1.6 Test channels.28
5.1.7 Generation and examination of the digital selective call signal.28
5.1.8 Standard test signals for DSC .28
5.1.9 Determination of the symbol error ratio in the output of the receiving part .28
5.1.10 Test conditions, power sources, and ambient temperatures .28
5.1.10.1 Normal and extreme test conditions.28
5.1.10.2 Test power source .29
5.1.11 Normal test conditions .29
5.1.11.1 Normal temperature and humidity .29
5.1.11.2 Normal power sources.29
5.1.11.2.1 Battery power source.29
5.1.11.2.2 Other power sources .29
5.1.12 Extreme test conditions.29
5.1.12.1 Extreme temperatures.29
5.1.12.2 Extreme values of test power sources .29
5.1.12.2.1 Battery power source.29
5.1.12.2.2 Other power sources .29
5.1.13 Procedure for tests at extreme temperatures .30
5.2 Interpretation of the measurement results .30
5.3 Essential radio test suites.30
5.3.1 Environmental tests.30
5.3.1.1 Introduction.30
5.3.1.2 Procedure.30
5.3.1.3 Performance check.31
5.3.1.4 Vibration test.31
5.3.1.5 Temperature tests.32
5.3.1.5.1 Dry heat.32
5.3.1.5.2 Damp heat.32
5.3.1.5.3 Low temperature.32
5.3.2 Conformance tests.32
ETSI
6 ETSI EN 301 025-3 V1.2.1 (2004-09)
5.3.2.1 Sensitivity of the modulator, including microphone .32
5.3.2.2 Audio frequency response.32
5.3.2.3 Audio frequency harmonic distortion of the emission .33
5.3.2.3.1 Methodology.33
5.3.2.3.2 Normal test conditions.33
5.3.2.3.3 Extreme test conditions .33
5.3.2.4 Residual modulation of the transmitter .33
5.3.2.5 Testing of generated call sequences .33
5.4 Other test suites.33
5.4.1 General.33
5.4.2 Harmonic distortion and rated audio-frequency output power .34
5.4.3 Receiver audio frequency response .34
5.4.4 Radio-telephone receiver maximum usable sensitivity.34
5.4.5 Radio-telephone receiver co-channel rejection.34
5.4.6 Radio-telephone receiver adjacent channel selectivity .35
5.4.7 Radio-telephone receiver spurious response rejection.35
5.4.8 Radio-telephone receiver intermodulation response.35
5.4.9 Radio-telephone receiver blocking or desensitization .36
5.4.10 Receiver residual noise level .36
5.4.11 Squelch operation.36
5.4.12 Squelch hysteresis.37
5.4.13 Dynamic range.37
5.4.14 Verification of correct decoding of various types of DSC calls .37
Annex A (normative): The EN Requirements Table (EN-RT) .38
Annex B (normative): DSC Calls .40
Annex C (informative): The EN title in the official languages .41
Annex D (informative): Bibliography.42
History .43

ETSI
7 ETSI EN 301 025-3 V1.2.1 (2004-09)
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 Candidate 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: 10 September 2004
Date of latest announcement of this EN (doa): 31 December 2004
Date of latest publication of new National Standard
or endorsement of this EN (dop/e): 30 June 2005
Date of withdrawal of any conflicting National Standard (dow): 30 June 2006

ETSI
8 ETSI EN 301 025-3 V1.2.1 (2004-09)
Introduction
The present document is part of a set of standards designed to fit in a modular structure to cover all radio and
telecommunications terminal equipment under the R&TTE Directive [1]. Each standard is a module in the structure.
The modular structure is shown in figure 1.

Disability*
3.3f
Emergency*
3.3e
Fraud*
3.3d
3.3c
Privacy*
No harm to the network*
3.3b
* If needed
Scoped by
Interworking via the network*
equipment
3.3a class or type
Interworking with the network
Use of spectrum
3.2
New radio harmonized standards
Spectrum
Scoped by frequency and/or equipment type
Maritime Radio Product EMC
EN 301 843 a, single, multi-part
standard
3.1b
EMC
Generic and product standards also notified under EMC Directive
- If needed, new standards for human exposure to
Electromagnetic Fields,
- if needed, new standards for acoustic safety
3.1a
Standards also notified under LV Directive
Safety
Non-radio Radio (RE)
TTE Non-TTE
Figure 1: Modular structure for the various standards used under the R&TTE Directive
ETSI
9 ETSI EN 301 025-3 V1.2.1 (2004-09)
The left hand edge of the figure 1 shows the different clauses of article 3 of the R&TTE Directive [1].
For article 3.3 various horizontal boxes are shown. Dotted lines indicate that at the time of publication of the present
document essential requirements in these areas have to be adopted by the Commission. If such essential requirements
are adopted, and as far and as long as they are applicable, they will justify individual standards whose scope is likely to
be specified by function or interface type.
The vertical boxes show the standards under article 3.2 for the use of the radio spectrum by radio equipment. The
scopes of these standards are specified either by frequency (normally in the case where frequency bands are
harmonized) or by radio equipment type.
For article 3.1b the diagram shows EN 301 843, the multi-part product EMC standard for maritime radio, and the
existing collection of generic and product standards currently used under the EMC Directive [2].
For article 3.1a the diagram shows the existing safety standards currently used under the LV Directive [3] and new
standards covering human exposure to electromagnetic fields. New standards covering acoustic safety may also be
required.
The bottom of the figure shows the relationship of the standards to radio equipment and telecommunications terminal
equipment. A particular equipment may be radio equipment, telecommunications terminal equipment or both. A radio
spectrum standard will apply if it is radio equipment. An article 3.3 standard will apply as well only if the relevant
essential requirement under the R&TTE Directive [1] is adopted by the Commission and if the equipment in question is
covered by the scope of the corresponding standard. Thus, depending on the nature of the equipment, the essential
requirements under the R&TTE Directive [1] may be covered in a set of standards.
The modularity principle has been taken because:
• it minimizes the number of standards needed. Because equipment may, in fact, have multiple interfaces and
functions it is not practicable to produce a single standard for each possible combination of functions that may
occur in an equipment;
• it provides scope for standards to be added:
- under article 3.2 when new frequency bands are agreed; or
- under article 3.3 should the Commission take the necessary decisions
without requiring alteration of standards that are already published;
• it clarifies, simplifies and promotes the usage of Harmonized Standards as the relevant means of conformity
assessment.
ETSI
10 ETSI EN 301 025-3 V1.2.1 (2004-09)
1 Scope
The present document applies to VHF radiotelephone equipment for general communications and associated equipment
for class "D" Digital Selective Calling (DSC).
This radio equipment operates within all or any part of the frequency band 156 MHz to 174 MHz allocated to the
Maritime Mobile Service and utilizes class of emission G3E, and G2B.
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 European Standards (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.
[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] Council Directive 89/336/EEC of 3 May 1989 on the approximation of the laws of the Member
States relating to electromagnetic compatibility (EMC Directive).
[3] Council Directive 73/23/EEC of 19 February 1973 on the harmonization of the laws of Member
States relating to electrical equipment designed for use within certain voltage limits
(LV Directive).
[4] ITU Radio Regulations, Appendix 18 (2001): "Table of transmitting frequencies in the VHF
ma
...