SIST EN 301 025 V2.3.1:2022

VHF radiotelephone equipment for general communications and associated equipment for Class D Digital Selective Calling (DSC) - Harmonised Standard for access to radio spectrum and for features for emergency services

The present document specifies technical characteristics and methods of measurements for VHF radiotelephone with the
following characteristics:
• operating in the channels and frequencies specified in the ITU Radio Regulations appendix 18 [1] as
applicable, allocated to the maritime mobile service;
• using either 25 kHz or 25 kHz and 12,5 kHz channels and associated equipment for DSC - class D;
• capable of operating on single frequency and two-frequency channels with manual control (simplex);
• supporting dual frequency simplex operation only;
• using phase modulation, G3E (frequency modulation with pre-emphasis of 6 dB/octave) for speech, and G2B
for DSC signalling.
Full duplex operation is not supported.
The present document does not provide technical requirements for conformance with the essential requirements of
Directive 2014/53/EU [i.3] for any integrated GNSS receiver providing locating function.
NOTE 1: Additional VHF channels for maritime use outside those defined by appendix 18 to the ITU Radio
Regulations [1] may also be provided where permitted by administration.
NOTE 2: The relationship between the present document and essential requirements of article 3.2 and article 3.3(g)
of Directive 2014/53/EU [i.3] is given in annex A.

Radiotelefonska oprema za območje VHF za splošne komunikacije in pripadajoča oprema za digitalni selektivni klic (DSC) razreda D - Harmonizirani standard za dostop do radijskega spektra in za funkcije storitev v sili

Ta dokument določa tehnične lastnosti in merilne metode za radiotelefonsko opremo za območje VHF z naslednjimi lastnostmi: • deluje v kanalih in na frekvencah, določenih v dodatku 18 [1] k Pravilniku o radiokomunikacijah ITU (kot je ustrezno) in dodeljenih pomorskim mobilnim storitvam; • uporablja kanale s frekvenco 25 kHz ali 25 kHz in 12,5 kHz ter pripadajočo opremo za digitalni selektivni klic razreda D; • lahko deluje v enofrekvenčnih in dvofrekvenčnih kanalih z ročnim krmiljenjem (simpleks); • podpira samo dvofrekvenčno simpleksno delovanje; • uporablja fazno modulacijo, G3E (frekvenčna modulacija s predpoudarkom 6 dB/oktavo) za govor in G2B za signalizacijo digitalnega selektivnega klica. Delovanje s polnim dupleksom ni podprto. Ta dokument ne podaja tehničnih zahtev za skladnost z bistvenimi zahtevami Direktive 2014/53/EU [i.3] za kateri koli integrirani sprejemnik GNSS, ki zagotavlja funkcijo lociranja. OPOMBA 1: Poleg kanalov, opredeljenih v dodatku 18 k Pravilniku o radiokomunikacijah ITU [1], se lahko zagotovijo tudi dodatni kanali VHF za pomorsko uporabo, če to dovoli izvršni organ. OPOMBA 2: Razmerje med tem dokumentom in bistvenimi zahtevami člena 3.2 in člena 3.3(g) Direktive 2014/53/EU [i.3] je podano v dodatku A.

General Information

• Status: Published
• Public Enquiry End Date: 20-Dec-2021
• Publication Date: 05-Jan-2022
• ICS: 33.060.99 - Other equipment for radiocommunications
• Technical Committee: MOC - Mobile Communications
• Current Stage: 6060 - National Implementation/Publication (Adopted Project)
• Start Date: 27-Dec-2021
• Due Date: 03-Mar-2022
• Completion Date: 06-Jan-2022
• Directive: 2014/53/EU - Directive 2014/53/EU of The European Parliament and of the Council of 16 April 2014 on the harmonisation of the laws of the Member States relating to the making available on the market of radio equipment and repealing Directive 1999/5/EC
• Ref Project: ETSI EN 301 025 V2.3.1 (2021-12) - VHF radiotelephone equipment for general communications and associated equipment for Class D Digital Selective Calling (DSC); Harmonised Standard for access to radio spectrum and for features for emergency services

Standards Content (Sample)

SLOVENSKI STANDARD
SIST EN 301 025 V2.3.1:2022
01-februar-2022
Radiotelefonska oprema za območje VHF za splošne komunikacije in pripadajoča
oprema za digitalni selektivni klic (DSC) razreda D - Harmonizirani standard za
dostop do radijskega spektra in za funkcije storitev v sili
VHF radiotelephone equipment for general communications and associated equipment
for Class D Digital Selective Calling (DSC) - Harmonised Standard for access to radio
spectrum and for features for emergency services
Ta slovenski standard je istoveten z: ETSI EN 301 025 V2.3.1 (2021-12)
ICS:
33.060.99 Druga oprema za radijske Other equipment for
komunikacije radiocommunications
SIST EN 301 025 V2.3.1:2022 en
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

---------------------- Page: 1 ----------------------
SIST EN 301 025 V2.3.1:2022

---------------------- Page: 2 ----------------------
SIST EN 301 025 V2.3.1:2022
ETSI EN 301 025 V2.3.1 (2021-12)






HARMONISED EUROPEAN STANDARD
VHF radiotelephone equipment for general communications
and associated equipment for Class "D"
Digital Selective Calling (DSC);
Harmonised Standard for access to radio spectrum and
for features for emergency services

---------------------- Page: 3 ----------------------
SIST EN 301 025 V2.3.1:2022

2 ETSI EN 301 025 V2.3.1 (2021-12)

Reference
REN/ERM-TGMAR-608
Keywords
DSC, harmonised standard, maritime, radio, traffic,
VHF

ETSI
650 Route des Lucioles
F-06921 Sophia Antipolis Cedex - FRANCE

Tel.: [phone]  Fax: [phone]

Siret N° 348 623 562 00017 - APE 7112B
Association à but non lucratif enregistrée à la
Sous-Préfecture de Grasse (06) N° w061004871

Important notice
The present document can be downloaded from:
http://www.etsi.org/standards-search
The present document may be made available in electronic versions and/or in print. The content of any electronic and/or
print versions of the present document shall not be modified without the prior written authorization of ETSI. In case of any
existing or perceived difference in contents between such versions and/or in print, the prevailing version of an ETSI
deliverable is the one made publicly available in PDF format at www.etsi.org/deliver.
Users of the present document should be aware that the document may be subject to revision or change of status.
Information on the current status of this and other ETSI documents is available at
https://portal.etsi.org/TB/ETSIDeliverableStatus.aspx
If you find errors in the present document, please send your comment to one of the following services:
https://portal.etsi.org/People/CommiteeSupportStaff.aspx
Notice of disclaimer & limitation of liability
The information provided in the present deliverable is directed solely to professionals who have the appropriate degree of
experience to understand and interpret its content in accordance with generally accepted engineering or
other professional standard and applicable regulations.
No recommendation as to products and services or vendors is made or should be implied.
In no event shall ETSI be held liable for loss of profits or any other incidental or consequential damages.

Any software contained in this deliverable is provided "AS IS" with no warranties, express or implied, including but not
limited to, the warranties of merchantability, fitness for a particular purpose and non-infringement of intellectual property
rights and ETSI shall not be held liable in any event for any damages whatsoever (including, without limitation, damages
for loss of profits, business interruption, loss of information, or any other pecuniary loss) arising out of or related to the use
of or inability to use the software.
Copyright Notification
No part may be reproduced or utilized in any form or by any means, electronic or mechanical, including photocopying and
microfilm except as authorized by written permission of ETSI.
The content of the PDF version shall not be modified without the written authorization of ETSI.
The copyright and the foregoing restriction extend to reproduction in all media.

© ETSI 2021.
All rights reserved.

ETSI

---------------------- Page: 4 ----------------------
SIST EN 301 025 V2.3.1:2022

3 ETSI EN 301 025 V2.3.1 (2021-12)
Contents
Intellectual Property Rights . 9
Foreword . 9
Modal verbs terminology . 10
1 Scope . 11
2 References . 11
2.1 Normative references . 11
2.2 Informative references . 12
3 Definition of terms, symbols and abbreviations . 12
3.1 Terms . 12
3.2 Symbols . 13
3.3 Abbreviations . 13
4 General and operational requirements . 13
4.1 General . 13
4.2 Composition . 14
4.3 Controls and indicators . 14
4.4 Display . 14
4.5 Handset and loudspeaker . 15
4.6 Labelling. 15
4.7 GNSS receiver antenna . 15
5 General technical requirements . 15
5.1 Warm up . 15
5.2 Switching time . 15
5.3 DSC operation . 15
5.3.1 General . 15
5.4 Multiple watch facilities . 15
5.4.1 General . 15
5.4.2 Scanning provisions . 16
5.4.3 Test for Priority Channel Scanning Procedure. 16
5.5 Availability of position data . 16
5.5.1 General . 16
5.5.2 Test for DSC Radios with a GNSS position data interface only . 17
5.5.3 Test for DSC Radios with an integrated GNSS receiver only . 17
5.5.4 Test for DSC Radios with an integrated GNSS receiver and a GNSS position data interface . 17
6 General conditions of measurement . 17
6.1 Arrangements for test signals applied to the receiver input . 17
6.2 Squelch . 18
6.3 Transmission time limitation . 18
6.4 Normal test modulation . 18
6.5 Artificial antenna . 18
6.6 Arrangements for test signals applied to the transmitter input . 18
6.7 Test channels . 18
6.8 Generation and examination of the digital selective call signal . 18
6.9 Standard test signals for DSC . 19
6.10 Determination of the symbol error ratio in the output of the receiving part . 19
6.11 Arrangements for monitoring the receiver output . 19
6.12 Test conditions, power sources, and ambient temperatures . 19
6.12.1 Normal and extreme test conditions. 19
6.12.2 Test power source . 19
6.13 Normal test conditions . 20
6.13.1 Normal temperature and humidity . 20
6.13.2 Normal power sources . 20
6.13.2.1 Battery power source. 20
6.13.2.2 Other power sources . 20
ETSI

---------------------- Page: 5 ----------------------
SIST EN 301 025 V2.3.1:2022

4 ETSI EN 301 025 V2.3.1 (2021-12)
6.14 Extreme test conditions . 20
6.14.1 Extreme temperatures . 20
6.14.2 Extreme values of test power sources . 20
6.14.2.1 Battery power source. 20
6.14.2.2 Other power sources . 20
6.15 Procedure for tests at extreme temperatures . 20
6.16 Reference Bandwidths for emission measurements . 21
7 Environmental tests . 21
7.1 Introduction . 21
7.2 Procedure . 21
7.3 Performance check . 21
7.4 Vibration test . 22
7.4.1 Definition . 22
7.4.2 Method of measurement . 22
7.4.3 Requirement . 22
7.5 Temperature tests . 22
7.5.1 Definition . 22
7.5.2 Dry heat . 22
7.5.2.1 Definition . 22
7.5.2.2 Method of measurement . 23
7.5.2.3 Requirement . 23
7.5.3 Damp heat . 23
7.5.3.1 Definition . 23
7.5.3.2 Method of measurement . 23
7.5.3.3 Requirement . 23
7.5.4 Low temperature . 23
7.5.4.1 Definition . 23
7.5.4.2 Method of measurement . 23
7.5.4.3 Requirement . 23
8 Transmitter . 24
8.1 Frequency error . 24
8.1.1 Definition . 24
8.1.2 Method of measurement . 24
8.1.3 Limits . 24
8.2 Carrier power . 24
8.2.1 Definition . 24
8.2.2 Method of measurement . 24
8.2.3 Limits . 24
8.2.3.1 Normal test conditions . 24
8.2.3.2 Extreme test conditions . 25
8.3 Frequency deviation . 25
8.3.1 Definition . 25
8.3.2 Maximum permissible frequency deviation . 25
8.3.2.1 Method of measurement . 25
8.3.2.2 Limits . 25
8.3.3 Reduction of frequency deviation at modulation frequencies above 2,55 kHz . 25
8.3.3.1 Method of measurement . 25
8.3.3.2 Limits . 25
8.4 Sensitivity of the modulator, including microphone . 26
8.4.1 Definition . 26
8.4.2 Method of measurement . 26
8.4.3 Limits . 26
8.5 Audio frequency response . 27
8.5.1 Definition . 27
8.5.2 Method of measurement . 27
8.5.3 Limit . 27
8.6 Audio frequency harmonic distortion of the emission. 28
8.6.1 Definition . 28
8.6.2 Method of measurement . 28
8.6.2.1 General . 28
ETSI

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SIST EN 301 025 V2.3.1:2022

5 ETSI EN 301 025 V2.3.1 (2021-12)
8.6.2.2 Normal test conditions . 28
8.6.2.3 Extreme test conditions . 28
8.6.3 Limits . 28
8.7 Adjacent channel power . 28
8.7.1 Definition . 28
8.7.2 Method of measurement . 28
8.7.3 Limits . 29
8.8 Conducted spurious emissions conveyed to the antenna . 29
8.8.1 Definition . 29
8.8.2 Method of measurement . 29
8.8.3 Limit . 29
8.9 Cabinet radiation and conducted spurious emissions other than those conveyed to the antenna . 30
8.9.1 Definitions . 30
8.9.2 Method of measurement . 30
8.9.3 Limits . 31
8.10 Transient frequency behaviour of the transmitter . 31
8.10.1 Definitions . 31
8.10.2 Method of measurement . 31
8.10.3 Limits . 34
8.11 Residual modulation of the transmitter . 34
8.11.1 Definition . 34
8.11.2 Method of measurement . 34
8.11.3 Limit . 34
8.12 Frequency error (demodulated DSC signal) . 34
8.12.1 Definition . 34
8.12.2 Method of measurement . 34
8.12.3 Limits . 35
8.13 Modulation index for DSC . 35
8.13.1 Definition . 35
8.13.2 Method of measurement . 35
8.13.3 Limits . 35
8.14 Modulation rate for DSC . 35
8.14.1 Definition . 35
8.14.2 Method of measurement . 35
8.14.3 Limits . 35
8.15 Free channel transmission on DSC channel 70 . 35
8.15.1 Definition . 35
8.15.2 Method of measurement . 36
8.15.3 Requirement . 36
8.16 Protection of the transmitter . 36
8.16.1 Definition . 36
8.16.2 Method of measurement . 36
8.16.3 Limits . 36
9 Radiotelephone receiver .
...

SLOVENSKI STANDARD
oSIST prEN 301 025 V2.2.2:2020
01-december-2020
Radiotelefonska oprema za območje VHF za splošne komunikacije in pripadajoča
oprema za digitalni selektivni klic (DSC) razreda D - Harmonizirani standard za
dostop do radijskega spektra in za funkcije storitev v sili
VHF radiotelephone equipment for general communications and associated equipment
for Class D Digital Selective Calling (DSC) - Harmonised Standard for access to radio
spectrum and for features for emergency services
Ta slovenski standard je istoveten z: ETSI EN 301 025 V2.2.2 (2020-10)
ICS:
33.060.99 Druga oprema za radijske Other equipment for
komunikacije radiocommunications
oSIST prEN 301 025 V2.2.2:2020 en
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

---------------------- Page: 1 ----------------------
oSIST prEN 301 025 V2.2.2:2020

---------------------- Page: 2 ----------------------
oSIST prEN 301 025 V2.2.2:2020
Draft ETSI EN 301 025 V2.2.2 (2020-10)






HARMONISED EUROPEAN STANDARD
VHF radiotelephone equipment for general communications
and associated equipment for Class "D"
Digital Selective Calling (DSC);
Harmonised Standard for access to radio spectrum and for
features for emergency services

---------------------- Page: 3 ----------------------
oSIST prEN 301 025 V2.2.2:2020
 2 Draft ETSI EN 301 025 V2.2.2 (2020-10)



Reference
REN/ERM-TGMAR-608
Keywords
DSC, harmonised standard, maritime, radio,
traffic, VHF

ETSI
650 Route des Lucioles
F-06921 Sophia Antipolis Cedex - FRANCE

Tel.: [phone]  Fax: [phone]

Siret N° 348 623 562 00017 - NAF 742 C
Association à but non lucratif enregistrée à la
Sous-Préfecture de Grasse (06) N° 7803/88

Important notice
The present document can be downloaded from:
http://www.etsi.org/standards-search
The present document may be made available in electronic versions and/or in print. The content of any electronic and/or
print versions of the present document shall not be modified without the prior written authorization of ETSI. In case of any
existing or perceived difference in contents between such versions and/or in print, the prevailing version of an ETSI
deliverable is the one made publicly available in PDF format at www.etsi.org/deliver.
Users of the present document should be aware that the document may be subject to revision or change of status.
Information on the current status of this and other ETSI documents is available at
https://portal.etsi.org/TB/ETSIDeliverableStatus.aspx
If you find errors in the present document, please send your comment to one of the following services:
https://portal.etsi.org/People/CommiteeSupportStaff.aspx
Copyright Notification
No part may be reproduced or utilized in any form or by any means, electronic or mechanical, including photocopying
and microfilm except as authorized by written permission of ETSI.
The content of the PDF version shall not be modified without the written authorization of ETSI.
The copyright and the foregoing restriction extend to reproduction in all media.

© ETSI 2020.
All rights reserved.

DECT™, PLUGTESTS™, UMTS™ and the ETSI logo are trademarks of ETSI registered for the benefit of its Members.

3GPP™ and LTE™ are trademarks of ETSI registered for the benefit of its Members and
of the 3GPP Organizational Partners.
oneM2M™ logo is a trademark of ETSI registered for the benefit of its Members and
of the oneM2M Partners.
®
GSM and the GSM logo are trademarks registered and owned by the GSM Association.
ETSI

---------------------- Page: 4 ----------------------
oSIST prEN 301 025 V2.2.2:2020
 3 Draft ETSI EN 301 025 V2.2.2 (2020-10)
Contents
Intellectual Property Rights . 9
Foreword . 9
Modal verbs terminology . 9
1 Scope . 10
2 References . 10
2.1 Normative references . 10
2.2 Informative references . 11
3 Definition of terms, symbols and abbreviations . 11
3.1 Terms . 11
3.2 Symbols . 12
3.3 Abbreviations . 12
4 General and operational requirements . 12
4.1 General . 12
4.2 Composition . 13
4.3 Construction . 13
4.4 Controls and indicators . 13
4.5 DSC interface for non-integrated controllers . 14
4.6 Display . 14
4.7 Handset and loudspeaker . 14
4.8 Safety precautions . 14
4.9 Labelling. 14
4.10 Warm up . 15
4.11 GNSS position data . 15
4.12 GNSS receiver antenna . 15
5 General technical requirements . 15
5.1 Switching time . 15
5.2 Class of emission and modulation characteristics . 15
5.3 DSC operation . 15
5.3.1 General . 15
5.4 Multiple watch facilities . 15
5.4.1 General . 15
5.4.2 Scanning provisions . 16
5.4.3 Scanning characteristics . 16
5.5 Availability of position data . 16
5.5.1 General . 16
5.5.2 Radios with a GNSS position data interface only . 17
5.5.3 Radios with an integrated GNSS receiver only. 17
5.5.4 Radios with an integrated GNSS receiver and a GNSS position data interface . 17
6 General conditions of measurement . 18
6.1 Arrangements for test signals applied to the receiver input . 18
6.2 Squelch . 18
6.3 Transmission time limitation . 18
6.4 Normal test modulation . 18
6.5 Artificial antenna . 18
6.6 Arrangements for test signals applied to the transmitter input . 18
6.7 Test channels . 18
6.8 Generation and examination of the digital selective call signal . 19
6.9 Standard test signals for DSC . 19
6.10 Determination of the symbol error ratio in the output of the receiving part . 19
6.11 Arrangements for monitoring the receiver output . 19
6.12 Test conditions, power sources, and ambient temperatures . 19
6.12.1 Normal and extreme test conditions. 19
6.12.2 Test power source . 20
ETSI

---------------------- Page: 5 ----------------------
oSIST prEN 301 025 V2.2.2:2020
 4 Draft ETSI EN 301 025 V2.2.2 (2020-10)
6.13 Normal test conditions . 20
6.13.1 Normal temperature and humidity . 20
6.13.2 Normal power sources . 20
6.13.2.1 Battery power source. 20
6.13.2.2 Other power sources . 20
6.14 Extreme test conditions . 20
6.14.1 Extreme temperatures . 20
6.14.2 Extreme values of test power sources . 20
6.14.2.1 Battery power source. 20
6.14.2.2 Other power sources . 20
6.15 Procedure for tests at extreme temperatures . 21
6.16 Reference Bandwidths for emission measurements . 21
7 Environmental tests . 21
7.1 Introduction . 21
7.2 Procedure . 21
7.3 Performance check . 21
7.4 Vibration test . 22
7.4.1 Definition . 22
7.4.2 Method of measurement . 22
7.4.3 Requirement . 22
7.5 Temperature tests . 23
7.5.1 Definition . 23
7.5.2 Dry heat . 23
7.5.2.1 Definition . 23
7.5.2.2 Method of measurement . 23
7.5.2.3 Requirement . 23
7.5.3 Damp heat . 23
7.5.3.1 Definition . 23
7.5.3.2 Method of measurement . 23
7.5.3.3 Requirement . 23
7.5.4 Low temperature . 24
7.5.4.1 Definition . 24
7.5.4.2 Method of measurement . 24
7.5.4.3 Requirement . 24
8 Transmitter . 24
8.1 Frequency error . 24
8.1.1 Definition . 24
8.1.2 Method of measurement . 24
8.1.3 Limits . 24
8.2 Carrier power . 24
8.2.1 Definition . 24
8.2.2 Method of measurement . 25
8.2.3 Limits . 25
8.2.3.1 Normal test conditions . 25
8.2.3.2 Extreme test conditions . 25
8.3 Frequency deviation . 25
8.3.1 Definition . 25
8.3.2 Maximum permissible frequency deviation . 25
8.3.2.1 Method of measurement . 25
8.3.2.2 Limits . 25
8.3.3 Reduction of frequency deviation at modulation frequencies above 3 kHz . 26
8.3.3.1 Method of measurement . 26
8.3.3.2 Limits . 26
8.4 Sensitivity of the modulator, including microphone . 27
8.4.1 Definition . 27
8.4.2 Method of measurement . 27
8.4.3 Limits . 27
8.5 Audio frequency response . 27
8.5.1 Definition . 27
8.5.2 Method of measurement . 27
ETSI

---------------------- Page: 6 ----------------------
oSIST prEN 301 025 V2.2.2:2020
 5 Draft ETSI EN 301 025 V2.2.2 (2020-10)
8.5.3 Limit . 27
8.6 Audio frequency harmonic distortion of the emission. 28
8.6.1 Definition . 28
8.6.2 Method of measurement . 28
8.6.2.1 General . 28
8.6.2.2 Normal test conditions . 28
8.6.2.3 Extreme test conditions . 28
8.6.3 Limits . 29
8.7 Adjacent channel power . 29
8.7.1 Definition . 29
8.7.2 Method of measurement . 29
8.7.3 Limits . 29
8.8 Conducted spurious emissions conveyed to the antenna . 30
8.8.1 Definition . 30
8.8.2 Method of measurement . 30
8.8.3 Limit . 30
8.9 Cabinet radiation and conducted spurious emissions other than those conveyed to the antenna . 30
8.9.1 Definitions . 30
8.9.2 Method of measurement . 30
8.9.3 Limits . 31
8.10 Transient frequency behaviour of the transmitter . 31
8.10.1 Definitions . 31
8.10.2 Method of measurement . 32
8.10.3 Limits . 34
8.11 Residual modulation of the transmitter . 34
8.11.1 Definition . 34
8.11.2 Method of measurement . 34
8.11.3 Limit . 34
8.12 Frequency error (demodulated DSC signal) . 34
8.12.1 Definition . 34
8.12.2 Method of measurement . 34
8.12.3 Limits . 35
8.13 Modulation index for DSC . 35
8.13.1 Definition . 35
8.13.2 Method of measurement . 35
8.13.3 Limits . 35
8.14 Modulation rate for DSC . 35
8.14.1 Definition . 35
8.14.2 Method of measurement . 35
8.14.3 Limits . 35
8.15 Free channel transmission on DSC channel 70 . 35
8.15.1 Definition . 35
8.15.2 Method of measurement . 36
8.15.3 Requirement . 36
8.16 Protection of the transmitter . 36
8.16.1 Definition . 36
8.16.2 Method of measurement . 36
8.16.3 Limits .
...

SLOVENSKI STANDARD
oSIST prEN 301 025 V2.2.4:2021
01-december-2021
Radiotelefonska oprema za območje VHF za splošne komunikacije in pripadajoča
oprema za digitalni selektivni klic (DSC) razreda D - Harmonizirani standard za
dostop do radijskega spektra in za funkcije storitev v sili
VHF radiotelephone equipment for general communications and associated equipment
for Class D Digital Selective Calling (DSC) - Harmonised Standard for access to radio
spectrum and for features for emergency services
Ta slovenski standard je istoveten z: ETSI EN 301 025 V2.2.4 (2021-09)
ICS:
33.060.99 Druga oprema za radijske Other equipment for
komunikacije radiocommunications
oSIST prEN 301 025 V2.2.4:2021 en
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

---------------------- Page: 1 ----------------------
oSIST prEN 301 025 V2.2.4:2021

---------------------- Page: 2 ----------------------
oSIST prEN 301 025 V2.2.4:2021
Draft ETSI EN 301 025 V2.2.4 (2021-09)






HARMONISED EUROPEAN STANDARD
VHF radiotelephone equipment for general communications
and associated equipment for Class "D"
Digital Selective Calling (DSC);
Harmonised Standard for access to radio spectrum and
for features for emergency services

---------------------- Page: 3 ----------------------
oSIST prEN 301 025 V2.2.4:2021

2 Draft ETSI EN 301 025 V2.2.4 (2021-09)

Reference
REN/ERM-TGMAR-608
Keywords
DSC, harmonised standard, maritime, radio, traffic,
VHF

ETSI
650 Route des Lucioles
F-06921 Sophia Antipolis Cedex - FRANCE

Tel.: [phone]  Fax: [phone]

Siret N° 348 623 562 00017 - APE 7112B
Association à but non lucratif enregistrée à la
Sous-Préfecture de Grasse (06) N° w061004871

Important notice
The present document can be downloaded from:
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The present document may be made available in electronic versions and/or in print. The content of any electronic and/or
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ETSI

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oSIST prEN 301 025 V2.2.4:2021

3 Draft ETSI EN 301 025 V2.2.4 (2021-09)
Contents
Intellectual Property Rights . 9
Foreword . 9
Modal verbs terminology . 10
1 Scope . 11
2 References . 11
2.1 Normative references . 11
2.2 Informative references . 12
3 Definition of terms, symbols and abbreviations . 12
3.1 Terms . 12
3.2 Symbols . 13
3.3 Abbreviations . 13
4 General and operational requirements . 13
4.1 General . 13
4.2 Composition . 14
4.3 Controls and indicators . 14
4.4 Display . 14
4.5 Handset and loudspeaker . 15
4.6 Labelling. 15
4.7 GNSS receiver antenna . 15
5 General technical requirements . 15
5.1 Warm up . 15
5.2 Switching time . 15
5.3 DSC operation . 15
5.3.1 General . 15
5.4 Multiple watch facilities . 15
5.4.1 General . 15
5.4.2 Scanning provisions . 16
5.4.3 Test for Priority Channel Scanning Procedure. 16
5.5 Availability of position data . 16
5.5.1 General . 16
5.5.2 Test for DSC Radios with a GNSS position data interface only . 17
5.5.3 Test for DSC Radios with an integrated GNSS receiver only . 17
5.5.4 Test for DSC Radios with an integrated GNSS receiver and a GNSS position data interface . 17
6 General conditions of measurement . 17
6.1 Arrangements for test signals applied to the receiver input . 17
6.2 Squelch . 18
6.3 Transmission time limitation . 18
6.4 Normal test modulation . 18
6.5 Artificial antenna . 18
6.6 Arrangements for test signals applied to the transmitter input . 18
6.7 Test channels . 18
6.8 Generation and examination of the digital selective call signal . 18
6.9 Standard test signals for DSC . 19
6.10 Determination of the symbol error ratio in the output of the receiving part . 19
6.11 Arrangements for monitoring the receiver output . 19
6.12 Test conditions, power sources, and ambient temperatures . 19
6.12.1 Normal and extreme test conditions. 19
6.12.2 Test power source . 19
6.13 Normal test conditions . 20
6.13.1 Normal temperature and humidity . 20
6.13.2 Normal power sources . 20
6.13.2.1 Battery power source. 20
6.13.2.2 Other power sources . 20
ETSI

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oSIST prEN 301 025 V2.2.4:2021

4 Draft ETSI EN 301 025 V2.2.4 (2021-09)
6.14 Extreme test conditions . 20
6.14.1 Extreme temperatures . 20
6.14.2 Extreme values of test power sources . 20
6.14.2.1 Battery power source. 20
6.14.2.2 Other power sources . 20
6.15 Procedure for tests at extreme temperatures . 20
6.16 Reference Bandwidths for emission measurements . 21
7 Environmental tests . 21
7.1 Introduction . 21
7.2 Procedure . 21
7.3 Performance check . 21
7.4 Vibration test . 22
7.4.1 Definition . 22
7.4.2 Method of measurement . 22
7.4.3 Requirement . 22
7.5 Temperature tests . 22
7.5.1 Definition . 22
7.5.2 Dry heat . 22
7.5.2.1 Definition . 22
7.5.2.2 Method of measurement . 23
7.5.2.3 Requirement . 23
7.5.3 Damp heat . 23
7.5.3.1 Definition . 23
7.5.3.2 Method of measurement . 23
7.5.3.3 Requirement . 23
7.5.4 Low temperature . 23
7.5.4.1 Definition . 23
7.5.4.2 Method of measurement . 23
7.5.4.3 Requirement . 23
8 Transmitter . 24
8.1 Frequency error . 24
8.1.1 Definition . 24
8.1.2 Method of measurement . 24
8.1.3 Limits . 24
8.2 Carrier power . 24
8.2.1 Definition . 24
8.2.2 Method of measurement . 24
8.2.3 Limits . 24
8.2.3.1 Normal test conditions . 24
8.2.3.2 Extreme test conditions . 25
8.3 Frequency deviation . 25
8.3.1 Definition . 25
8.3.2 Maximum permissible frequency deviation . 25
8.3.2.1 Method of measurement . 25
8.3.2.2 Limits . 25
8.3.3 Reduction of frequency deviation at modulation frequencies above 2,55 kHz . 25
8.3.3.1 Method of measurement . 25
8.3.3.2 Limits . 25
8.4 Sensitivity of the modulator, including microphone . 26
8.4.1 Definition . 26
8.4.2 Method of measurement . 26
8.4.3 Limits . 26
8.5 Audio frequency response . 27
8.5.1 Definition . 27
8.5.2 Method of measurement . 27
8.5.3 Limit . 27
8.6 Audio frequency harmonic distortion of the emission. 28
8.6.1 Definition . 28
8.6.2 Method of measurement . 28
8.6.2.1 General . 28
ETSI

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oSIST prEN 301 025 V2.2.4:2021

5 Draft ETSI EN 301 025 V2.2.4 (2021-09)
8.6.2.2 Normal test conditions . 28
8.6.2.3 Extreme test conditions . 28
8.6.3 Limits . 28
8.7 Adjacent channel power . 28
8.7.1 Definition . 28
8.7.2 Method of measurement . 28
8.7.3 Limits . 29
8.8 Conducted spurious emissions conveyed to the antenna . 29
8.8.1 Definition . 29
8.8.2 Method of measurement . 29
8.8.3 Limit . 29
8.9 Cabinet radiation and conducted spurious emissions other than those conveyed to the antenna . 30
8.9.1 Definitions . 30
8.9.2 Method of measurement . 30
8.9.3 Limits . 31
8.10 Transient frequency behaviour of the transmitter . 31
8.10.1 Definitions . 31
8.10.2 Method of measurement . 31
8.10.3 Limits . 34
8.11 Residual modulation of the transmitter . 34
8.11.1 Definition . 34
8.11.2 Method of measurement . 34
8.11.3 Limit . 34
8.12 Frequency error (demodulated DSC signal) . 34
8.12.1 Definition . 34
8.12.2 Method of measurement . 34
8.12.3 Limits . 35
8.13 Modulation index for DSC . 35
8.13.1 Definition . 35
8.13.2 Method of measurement . 35
8.13.3 Limits . 35
8.14 Modulation rate for DSC . 35
8.14.1 Definition . 35
8.14.2 Method of measurement . 35
8.14.3 Limits . 35
8.15 Free channel transmission on DSC channel 70 . 35
8.15.1 Definition . 35
8.15.2 Method of measurement . 36
8.15.3 Requirement . 36
8.16 Protection of the transmitter . 36
8.16.1 Definition . 36
8.16.2 Method of measurement . 36
8.16.3 Limits . 36
9 Radiotelephone receiver .
...