Technical characteristics and methods of measurement for equipment for generation, transmission and reception of Digital Selective Calling (DSC) in the maritime MF, MF/HF and/or VHF mobile service - Part 5: Handheld VHF Class H DSC

The present document states the minimum requirements for general communication for handheld VHF radios using the
handheld class H DSC for shipborne use.
Class H DSC may be used in the Very High Frequency (VHF) Maritime Mobile Service (MMS), for distress, urgency
and safety communication and general communications using telephony for subsequent communications.
The present document is part 5 of a multi-part deliverable that covers the requirements to be fulfilled by equipment that
is integrated with a handheld transceiver.
These requirements include the relevant provisions and the guidelines of the IMO as detailed in MSC/Circ.803 [i.1] for
non-SOLAS vessels participating in the GMDSS.

Tehnične karakteristike in merilne metode za naprave, ki generirajo, oddajajo in sprejemajo digitalni selektivni klic (DSC) v pomorski mobilni storitvi, ki deluje v območju MF, MF/HF oziroma VHF - 5. del: Ročne postaje VHF z digitalnim selektivnim klicem razreda H

General Information

Status
Published
Public Enquiry End Date
30-Dec-2019
Publication Date
18-Jun-2020
Technical Committee
Current Stage
6060 - National Implementation/Publication (Adopted Project)
Start Date
08-Jun-2020
Due Date
13-Aug-2020
Completion Date
19-Jun-2020

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ETSI EN 300 338-5 V1.3.1 (2020-06) - Technical characteristics and methods of measurement for equipment for generation, transmission and reception of Digital Selective Calling (DSC) in the maritime MF, MF/HF and/or VHF mobile service; Part 5: Handheld VHF Class H DSC
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ETSI EN 300 338-5 V1.3.1 (2020-03) - Technical characteristics and methods of measurement for equipment for generation, transmission and reception of Digital Selective Calling (DSC) in the maritime MF, MF/HF and/or VHF mobile service; Part 5: Handheld VHF Class H DSC
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ETSI EN 300 338-5 V1.3.0 (2019-10) - Technical characteristics and methods of measurement for equipment for generation, transmission and reception of Digital Selective Calling (DSC) in the maritime MF, MF/HF and/or VHF mobile service; Part 5: Handheld VHF Class H DSC
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SLOVENSKI STANDARD
SIST EN 300 338-5 V1.3.1:2020
01-september-2020
Tehnične karakteristike in merilne metode za naprave, ki generirajo, oddajajo in

sprejemajo digitalni selektivni klic (DSC) v pomorski mobilni storitvi, ki deluje v

območju MF, MF/HF oziroma VHF - 5. del: Ročne postaje VHF z digitalnim
selektivnim klicem razreda H

Technical characteristics and methods of measurement for equipment for generation,

transmission and reception of Digital Selective Calling (DSC) in the maritime MF, MF/HF

and/or VHF mobile service - Part 5: Handheld VHF Class H DSC
Ta slovenski standard je istoveten z: ETSI EN 300 338-5 V1.3.1 (2020-06)
ICS:
33.060.20 Sprejemna in oddajna Receiving and transmitting
oprema equipment
47.020.70 Navigacijska in krmilna Navigation and control
oprema equipment
SIST EN 300 338-5 V1.3.1:2020 en

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

---------------------- Page: 1 ----------------------
SIST EN 300 338-5 V1.3.1:2020
---------------------- Page: 2 ----------------------
SIST EN 300 338-5 V1.3.1:2020
ETSI EN 300 338-5 V1.3.1 (2020-06)
EUROPEAN STANDARD
Technical characteristics and methods of measurement
for equipment for generation, transmission
and reception of Digital Selective Calling (DSC)
in the maritime MF, MF/HF and/or VHF mobile service;
Part 5: Handheld VHF Class H DSC
---------------------- Page: 3 ----------------------
SIST EN 300 338-5 V1.3.1:2020
2 ETSI EN 300 338-5 V1.3.1 (2020-06)
Reference
REN/ERM-TGMAR-603
Keywords
DSC, GMDSS, maritime, radio
ETSI
650 Route des Lucioles
F-06921 Sophia Antipolis Cedex - FRANCE
Tel.: +33 4 92 94 42 00 Fax: +33 4 93 65 47 16
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 ----------------------
SIST EN 300 338-5 V1.3.1:2020
3 ETSI EN 300 338-5 V1.3.1 (2020-06)
Contents

Intellectual Property Rights ................................................................................................................................ 6

Foreword ............................................................................................................................................................. 6

Modal verbs terminology .................................................................................................................................... 6

1 Scope ........................................................................................................................................................ 7

2 References ................................................................................................................................................ 7

2.1 Normative references ......................................................................................................................................... 7

2.2 Informative references ........................................................................................................................................ 7

3 Definition of terms, symbols and abbreviations ....................................................................................... 8

3.1 Terms .................................................................................................................................................................. 8

3.2 Symbols .............................................................................................................................................................. 9

3.3 Abbreviations ................................................................................................................................................... 10

4 Controls and Indicators in handheld Class H DSC Equipment .............................................................. 10

4.1 Visual indication .............................................................................................................................................. 10

4.1.0 General ........................................................................................................................................................ 10

4.1.1 Primary DSC alphanumeric display ............................................................................................................ 10

4.1.1.0 General Requirements ........................................................................................................................... 10

4.1.1.1 Additional display information ............................................................................................................. 11

4.1.2 Handling visual information ....................................................................................................................... 11

5 Technical requirements .......................................................................................................................... 11

5.1 Facilities for DSC transmission and reception ................................................................................................. 11

5.1.1 GNSS receiver ............................................................................................................................................ 11

5.1.2 CH:70 receiver ............................................................................................................................................ 11

5.2 Facilities for coding and decoding of DSC ...................................................................................................... 11

5.2.1 Call functions .............................................................................................................................................. 11

5.2.2 INDIVIDUAL calls .................................................................................................................................... 12

5.2.3 ALL SHIPS calls ........................................................................................................................................ 12

5.2.4 DSC call functionality ................................................................................................................................ 12

6 Automated and Non-Automated Procedure Requirements in handheld Class H DSC Equipment ........ 13

6.1 Introduction ...................................................................................................................................................... 13

6.2 Non-automated features ................................................................................................................................... 13

6.2.1 DSC Message Composition ........................................................................................................................ 13

6.2.2 Transmission of DSC messages and prioritized wait .................................................................................. 14

6.2.3 Alarms ........................................................................................................................................................ 14

6.3 Standby ............................................................................................................................................................. 14

6.4 Sending distress automated procedure ............................................................................................................. 15

6.4.1 Procedure .................................................................................................................................................... 15

6.4.2 Tasks ........................................................................................................................................................... 17

6.4.3 Display ........................................................................................................................................................ 17

6.4.3.0 General Display Requirements .............................................................................................................. 17

6.4.3.1 Examples of sending distress procedure displays on handheld VHF equipment .................................. 18

6.4.4 Dedicated distress button sub procedure ..................................................................................................... 18

6.4.5 Transmission of the alert attempt ................................................................................................................ 19

6.4.6 Updating position ........................................................................................................................................ 19

6.4.7 Handling received DSC Messages .............................................................................................................. 19

6.4.8 Alarms ........................................................................................................................................................ 20

6.4.9 Determining Subsequent communications .................................................................................................. 20

6.4.10 Automated tuning ....................................................................................................................................... 20

6.4.11 Cancelling the Distress Alert ...................................................................................................................... 20

6.4.11.0 General Requirements ........................................................................................................................... 20

6.4.11.1 Examples of cancel-distress displays on VHF equipment..................................................................... 20

6.4.12 Acknowledgements ..................................................................................................................................... 21

6.4.13 Termination................................................................................................................................................. 21

6.4.14 Warnings ..................................................................................................................................................... 21

ETSI
---------------------- Page: 5 ----------------------
SIST EN 300 338-5 V1.3.1:2020
4 ETSI EN 300 338-5 V1.3.1 (2020-06)

6.5 Receiving distress automated procedure .......................................................................................................... 21

6.5.1 Procedure .................................................................................................................................................... 21

6.5.2 Tasks ........................................................................................................................................................... 22

6.5.3 Display ........................................................................................................................................................ 23

6.5.3.0 General Display Requirements .............................................................................................................. 23

6.5.3.1 Examples of received distress procedure displays on VHF equipment ................................................. 23

6.5.4 Handling received DSC Messages .............................................................................................................. 24

6.5.5 Alarms ........................................................................................................................................................ 24

6.5.6 Determining Subsequent communications .................................................................................................. 24

6.5.7 Automated tuning ....................................................................................................................................... 24

6.5.8 Acknowledgements ..................................................................................................................................... 25

6.5.9 Termination................................................................................................................................................. 25

6.5.10 Warnings ..................................................................................................................................................... 25

6.6 Sending non-distress automated procedure ...................................................................................................... 25

6.6.1 Procedure .................................................................................................................................................... 25

6.6.2 Tasks ........................................................................................................................................................... 26

6.6.3 Display ........................................................................................................................................................ 27

6.6.3.0 General Display Requirements .............................................................................................................. 27

6.6.3.1 Examples of sending non-distress procedures displays on VHF equipment ......................................... 28

6.6.4 Handling received DSC Messages .............................................................................................................. 28

6.6.5 Alarms ........................................................................................................................................................ 28

6.6.6 Automated tuning ....................................................................................................................................... 28

6.6.7 Delayed Acknowledgements ...................................................................................................................... 29

6.6.8 Termination................................................................................................................................................. 29

6.6.9 Warnings ..................................................................................................................................................... 29

6.7 Receiving non-distress automated procedure ................................................................................................... 29

6.7.1 Procedure .................................................................................................................................................... 29

6.7.2 Tasks ........................................................................................................................................................... 30

6.7.3 Display ........................................................................................................................................................ 31

6.7.3.0 General Display Requirements .............................................................................................................. 31

6.7.3.1 Examples of receiving non-distress procedures displays on VHF equipment ....................................... 32

6.7.4 Handling received DSC messages .............................................................................................................. 32

6.7.5 Alarms ........................................................................................................................................................ 32

6.7.6 Automated tuning ....................................................................................................................................... 32

6.7.7 Acknowledgements ..................................................................................................................................... 33

6.7.8 Termination................................................................................................................................................. 33

6.7.9 Warnings ..................................................................................................................................................... 33

6.8 Communications automated procedure ............................................................................................................ 33

6.8.1 Procedure .................................................................................................................................................... 33

6.8.2 Tasks ........................................................................................................................................................... 34

6.8.3 Display ........................................................................................................................................................ 34

6.8.4 Handling received DSC Messages .............................................................................................................. 34

6.8.5 Tuning of the receiver and transmitter ........................................................................................................ 34

6.8.6 Termination................................................................................................................................................. 34

6.9 Handling incoming calls while the equipment is engaged ............................................................................... 34

6.9.1 Procedure .................................................................................................................................................... 34

6.9.2 Tasks ........................................................................................................................................................... 35

6.9.2.0 General .................................................................................................................................................. 35

6.9.2.1 Higher priority calls .............................................................................................................................. 35

6.9.2.1.0 General ............................................................................................................................................ 35

6.9.2.1.1 Higher priority calls - acceptance .................................................................................................... 35

6.9.2.1.2 Higher priority calls - non acceptance ............................................................................................. 35

6.9.2.2 Other calls ............................................................................................................................................. 36

6.9.2.3 Termination of automated procedures ................................................................................................... 36

6.9.2.4 Action after termination of an automated procedure ............................................................................. 36

6.9.2.5 Putting automated procedures on hold (optional) ................................................................................. 36

6.9.2.6 Controlling non-terminated automated procedures (optional) .............................................................. 36

Annex A (informative): DSC message composition ............................................................................. 38

A.1 Default values ......................................................................................................................................... 38

ETSI
---------------------- Page: 6 ----------------------
SIST EN 300 338-5 V1.3.1:2020
5 ETSI EN 300 338-5 V1.3.1 (2020-06)

Annex B (normative): Automated non-distress channel selection algorithm ................................. 39

Annex C (normative): Alarms ............................................................................................................. 40

C.1 Alarm specifications ............................................................................................................................... 40

C.2 Alarming with critical errors .................................................................................................................. 41

C.3 Default alarm sounds .............................................................................................................................. 41

C.4 Recommended alarm sounds .................................................................................................................. 41

History .............................................................................................................................................................. 43

ETSI
---------------------- Page: 7 ----------------------
SIST EN 300 338-5 V1.3.1:2020
6 ETSI EN 300 338-5 V1.3.1 (2020-06)
Intellectual Property Rights
Essential patents

IPRs essential or potentially essential to normative deliverables 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 (https://ipr.etsi.org/).

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.
Trademarks

The present document may include trademarks and/or tradenames which are asserted and/or registered by their owners.

ETSI claims no ownership of these except for any which are indicated as being the property of ETSI, and conveys no

right to use or reproduce any trademark and/or tradename. Mention of those trademarks in the present document does

not constitute an endorsement by ETSI of products, services or organizations associated with those trademarks.

Foreword

This European Standard (EN) has been produced by ETSI Technical Committee Electromagnetic compatibility and

Radio spectrum Matters (ERM).

The present document is part 5 of a multi-part deliverable. Full details of the entire series can be found in part 1 [i.2].

National transposition dates
Date of adoption of this EN: 29 May 2020
Date of latest announcement of this EN (doa): 31 August 2020
Date of latest publication of new National Standard
or endorsement of this EN (dop/e): 28 February 2021
Date of withdrawal of any conflicting National Standard (dow): 28 February 2022
Modal verbs terminology

In the present document "shall", "shall not", "should", "should not", "may", "need not", "will", "will not", "can" and

"cannot" are to be interpreted as described in clause 3.2 of the ETSI Drafting Rules (Verbal forms for the expression of

provisions).

"must" and "must not" are NOT allowed in ETSI deliverables except when used in direct citation.

ETSI
---------------------- Page: 8 ----------------------
SIST EN 300 338-5 V1.3.1:2020
7 ETSI EN 300 338-5 V1.3.1 (2020-06)
1 Scope

The present document states the minimum requirements for general communication for handheld VHF radios using the

handheld class H DSC for shipborne use.

Class H DSC may be used in the Very High Frequency (VHF) Maritime Mobile Service (MMS), for distress, urgency

and safety communication and general communications using telephony for subsequent communications.

The present document is part 5 of a multi-part deliverable that covers the requirements to be fulfilled by equipment that

is integrated with a handheld transceiver.

These requirements include the relevant provisions and the guidelines of the IMO as detailed in MSC/Circ.803 [i.1] for

non-SOLAS vessels participating in the GMDSS.
2 References
2.1 Normative references

References are either specific (identified by date of publication and/or edition number or version number) or

non-specific. For specific references, only the cited version applies. For non-specific references, the latest version of the

referenced document (including any amendments) applies.

Referenced documents which are not found to be publicly available in the expected location might be found at

https://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.

The following referenced documents are necessary for the application of the present document.

[1] ITU Radio Regulations (2016).

[2] Recommendation ITU-R M.493-15 (01/2019): "Digital selective-calling system for use in the

maritime mobile service".
2.2 Informative references

References are either specific (identified by date of publication and/or edition number or version number) or

non-specific. For specific references, only the cited version applies. For non-specific references, the latest version of the

referenced document (including any amendments) applies.

NOTE: While any hyperlinks included in this clause were valid at the time of publication, ETSI cannot guarantee

their long term validity.

The following referenced documents are not necessary for the application of the present document but they assist the

user with regard to a particular subject area.

[i.1] IMO Circular MSC/Circ.803: "Participation of non-SOLAS ships in the Global Maritime Distress

and Safety System (GMDSS)".

[i.2] ETSI EN 300 338-1: "Technical characteristics and methods of measurement for equipment for

generation, transmission and reception of Digital Selective Calling (DSC) in the maritime MF,

MF/HF and/or VHF mobile service; Part 1: Common requirements".

[i.3] Recommendation ITU-R M.493: "Digital selective-calling system for use in the maritime mobile

service".
ETSI
---------------------- Page: 9 ----------------------
SIST EN 300 338-5 V1.3.1:2020
8 ETSI EN 300 338-5 V1.3.1 (2020-06)
3 Definition of terms, symbols and abbreviations
3.1 Terms
For the purposes of the present document, the following terms apply:

acknowledged: automated procedure which indicates that the objective of the initial DSC message has been achieved

active: automated procedure which has control of the receiver and transmitter and is thus able to engage in subsequent

communications and receive DSC messages

automated procedure: set of actions necessary to complete the objective of an initiating DSC message or non DSC

communication event

NOTE 1: Four DSC automated procedures are designed to process these. They are the receiving of distress DSC

messages, the receiving of non-distress DSC messages, the sending of distress DSC alert attempts and the

sending of non-distress DSC messages. In addition a fifth procedure is designed to handle non DSC

communication events.
NOTE 2: These automated procedures are called:
 Received distress automated procedure.
 Sending distress automated procedure.
 Received non-distress automated procedure.
 Sending non-distress automated procedure.
 Communications automated procedure.

class H: handheld class intended to provide minimum facilities for VHF DSC distress, urgency and safety as well as

routine calling and reception, not necessarily in full accordance with IMO GMDSS carriage requirements for VHF

installations

NOTE: For handheld Class H VHF a reduced functionality is permitted compared to a fixed VHF class D.

critical errors: set of information characters obtained from one or more received DSC messages is considered to have

critical errors if the automated procedure needs in
...

ETSI EN 300 338-5 V1.3.1 (2020-06)
EUROPEAN STANDARD
Technical characteristics and methods of measurement
for equipment for generation, transmission
and reception of Digital Selective Calling (DSC)
in the maritime MF, MF/HF and/or VHF mobile service;
Part 5: Handheld VHF Class H DSC
---------------------- Page: 1 ----------------------
2 ETSI EN 300 338-5 V1.3.1 (2020-06)
Reference
REN/ERM-TGMAR-603
Keywords
DSC, GMDSS, maritime, radio
ETSI
650 Route des Lucioles
F-06921 Sophia Antipolis Cedex - FRANCE
Tel.: +33 4 92 94 42 00 Fax: +33 4 93 65 47 16
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: 2 ----------------------
3 ETSI EN 300 338-5 V1.3.1 (2020-06)
Contents

Intellectual Property Rights ................................................................................................................................ 6

Foreword ............................................................................................................................................................. 6

Modal verbs terminology .................................................................................................................................... 6

1 Scope ........................................................................................................................................................ 7

2 References ................................................................................................................................................ 7

2.1 Normative references ......................................................................................................................................... 7

2.2 Informative references ........................................................................................................................................ 7

3 Definition of terms, symbols and abbreviations ....................................................................................... 8

3.1 Terms .................................................................................................................................................................. 8

3.2 Symbols .............................................................................................................................................................. 9

3.3 Abbreviations ................................................................................................................................................... 10

4 Controls and Indicators in handheld Class H DSC Equipment .............................................................. 10

4.1 Visual indication .............................................................................................................................................. 10

4.1.0 General ........................................................................................................................................................ 10

4.1.1 Primary DSC alphanumeric display ............................................................................................................ 10

4.1.1.0 General Requirements ........................................................................................................................... 10

4.1.1.1 Additional display information ............................................................................................................. 11

4.1.2 Handling visual information ....................................................................................................................... 11

5 Technical requirements .......................................................................................................................... 11

5.1 Facilities for DSC transmission and reception ................................................................................................. 11

5.1.1 GNSS receiver ............................................................................................................................................ 11

5.1.2 CH:70 receiver ............................................................................................................................................ 11

5.2 Facilities for coding and decoding of DSC ...................................................................................................... 11

5.2.1 Call functions .............................................................................................................................................. 11

5.2.2 INDIVIDUAL calls .................................................................................................................................... 12

5.2.3 ALL SHIPS calls ........................................................................................................................................ 12

5.2.4 DSC call functionality ................................................................................................................................ 12

6 Automated and Non-Automated Procedure Requirements in handheld Class H DSC Equipment ........ 13

6.1 Introduction ...................................................................................................................................................... 13

6.2 Non-automated features ................................................................................................................................... 13

6.2.1 DSC Message Composition ........................................................................................................................ 13

6.2.2 Transmission of DSC messages and prioritized wait .................................................................................. 14

6.2.3 Alarms ........................................................................................................................................................ 14

6.3 Standby ............................................................................................................................................................. 14

6.4 Sending distress automated procedure ............................................................................................................. 15

6.4.1 Procedure .................................................................................................................................................... 15

6.4.2 Tasks ........................................................................................................................................................... 17

6.4.3 Display ........................................................................................................................................................ 17

6.4.3.0 General Display Requirements .............................................................................................................. 17

6.4.3.1 Examples of sending distress procedure displays on handheld VHF equipment .................................. 18

6.4.4 Dedicated distress button sub procedure ..................................................................................................... 18

6.4.5 Transmission of the alert attempt ................................................................................................................ 19

6.4.6 Updating position ........................................................................................................................................ 19

6.4.7 Handling received DSC Messages .............................................................................................................. 19

6.4.8 Alarms ........................................................................................................................................................ 20

6.4.9 Determining Subsequent communications .................................................................................................. 20

6.4.10 Automated tuning ....................................................................................................................................... 20

6.4.11 Cancelling the Distress Alert ...................................................................................................................... 20

6.4.11.0 General Requirements ........................................................................................................................... 20

6.4.11.1 Examples of cancel-distress displays on VHF equipment..................................................................... 20

6.4.12 Acknowledgements ..................................................................................................................................... 21

6.4.13 Termination................................................................................................................................................. 21

6.4.14 Warnings ..................................................................................................................................................... 21

ETSI
---------------------- Page: 3 ----------------------
4 ETSI EN 300 338-5 V1.3.1 (2020-06)

6.5 Receiving distress automated procedure .......................................................................................................... 21

6.5.1 Procedure .................................................................................................................................................... 21

6.5.2 Tasks ........................................................................................................................................................... 22

6.5.3 Display ........................................................................................................................................................ 23

6.5.3.0 General Display Requirements .............................................................................................................. 23

6.5.3.1 Examples of received distress procedure displays on VHF equipment ................................................. 23

6.5.4 Handling received DSC Messages .............................................................................................................. 24

6.5.5 Alarms ........................................................................................................................................................ 24

6.5.6 Determining Subsequent communications .................................................................................................. 24

6.5.7 Automated tuning ....................................................................................................................................... 24

6.5.8 Acknowledgements ..................................................................................................................................... 25

6.5.9 Termination................................................................................................................................................. 25

6.5.10 Warnings ..................................................................................................................................................... 25

6.6 Sending non-distress automated procedure ...................................................................................................... 25

6.6.1 Procedure .................................................................................................................................................... 25

6.6.2 Tasks ........................................................................................................................................................... 26

6.6.3 Display ........................................................................................................................................................ 27

6.6.3.0 General Display Requirements .............................................................................................................. 27

6.6.3.1 Examples of sending non-distress procedures displays on VHF equipment ......................................... 28

6.6.4 Handling received DSC Messages .............................................................................................................. 28

6.6.5 Alarms ........................................................................................................................................................ 28

6.6.6 Automated tuning ....................................................................................................................................... 28

6.6.7 Delayed Acknowledgements ...................................................................................................................... 29

6.6.8 Termination................................................................................................................................................. 29

6.6.9 Warnings ..................................................................................................................................................... 29

6.7 Receiving non-distress automated procedure ................................................................................................... 29

6.7.1 Procedure .................................................................................................................................................... 29

6.7.2 Tasks ........................................................................................................................................................... 30

6.7.3 Display ........................................................................................................................................................ 31

6.7.3.0 General Display Requirements .............................................................................................................. 31

6.7.3.1 Examples of receiving non-distress procedures displays on VHF equipment ....................................... 32

6.7.4 Handling received DSC messages .............................................................................................................. 32

6.7.5 Alarms ........................................................................................................................................................ 32

6.7.6 Automated tuning ....................................................................................................................................... 32

6.7.7 Acknowledgements ..................................................................................................................................... 33

6.7.8 Termination................................................................................................................................................. 33

6.7.9 Warnings ..................................................................................................................................................... 33

6.8 Communications automated procedure ............................................................................................................ 33

6.8.1 Procedure .................................................................................................................................................... 33

6.8.2 Tasks ........................................................................................................................................................... 34

6.8.3 Display ........................................................................................................................................................ 34

6.8.4 Handling received DSC Messages .............................................................................................................. 34

6.8.5 Tuning of the receiver and transmitter ........................................................................................................ 34

6.8.6 Termination................................................................................................................................................. 34

6.9 Handling incoming calls while the equipment is engaged ............................................................................... 34

6.9.1 Procedure .................................................................................................................................................... 34

6.9.2 Tasks ........................................................................................................................................................... 35

6.9.2.0 General .................................................................................................................................................. 35

6.9.2.1 Higher priority calls .............................................................................................................................. 35

6.9.2.1.0 General ............................................................................................................................................ 35

6.9.2.1.1 Higher priority calls - acceptance .................................................................................................... 35

6.9.2.1.2 Higher priority calls - non acceptance ............................................................................................. 35

6.9.2.2 Other calls ............................................................................................................................................. 36

6.9.2.3 Termination of automated procedures ................................................................................................... 36

6.9.2.4 Action after termination of an automated procedure ............................................................................. 36

6.9.2.5 Putting automated procedures on hold (optional) ................................................................................. 36

6.9.2.6 Controlling non-terminated automated procedures (optional) .............................................................. 36

Annex A (informative): DSC message composition ............................................................................. 38

A.1 Default values ......................................................................................................................................... 38

ETSI
---------------------- Page: 4 ----------------------
5 ETSI EN 300 338-5 V1.3.1 (2020-06)

Annex B (normative): Automated non-distress channel selection algorithm ................................. 39

Annex C (normative): Alarms ............................................................................................................. 40

C.1 Alarm specifications ............................................................................................................................... 40

C.2 Alarming with critical errors .................................................................................................................. 41

C.3 Default alarm sounds .............................................................................................................................. 41

C.4 Recommended alarm sounds .................................................................................................................. 41

History .............................................................................................................................................................. 43

ETSI
---------------------- Page: 5 ----------------------
6 ETSI EN 300 338-5 V1.3.1 (2020-06)
Intellectual Property Rights
Essential patents

IPRs essential or potentially essential to normative deliverables 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 (https://ipr.etsi.org/).

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.
Trademarks

The present document may include trademarks and/or tradenames which are asserted and/or registered by their owners.

ETSI claims no ownership of these except for any which are indicated as being the property of ETSI, and conveys no

right to use or reproduce any trademark and/or tradename. Mention of those trademarks in the present document does

not constitute an endorsement by ETSI of products, services or organizations associated with those trademarks.

Foreword

This European Standard (EN) has been produced by ETSI Technical Committee Electromagnetic compatibility and

Radio spectrum Matters (ERM).

The present document is part 5 of a multi-part deliverable. Full details of the entire series can be found in part 1 [i.2].

National transposition dates
Date of adoption of this EN: 29 May 2020
Date of latest announcement of this EN (doa): 31 August 2020
Date of latest publication of new National Standard
or endorsement of this EN (dop/e): 28 February 2021
Date of withdrawal of any conflicting National Standard (dow): 28 February 2022
Modal verbs terminology

In the present document "shall", "shall not", "should", "should not", "may", "need not", "will", "will not", "can" and

"cannot" are to be interpreted as described in clause 3.2 of the ETSI Drafting Rules (Verbal forms for the expression of

provisions).

"must" and "must not" are NOT allowed in ETSI deliverables except when used in direct citation.

ETSI
---------------------- Page: 6 ----------------------
7 ETSI EN 300 338-5 V1.3.1 (2020-06)
1 Scope

The present document states the minimum requirements for general communication for handheld VHF radios using the

handheld class H DSC for shipborne use.

Class H DSC may be used in the Very High Frequency (VHF) Maritime Mobile Service (MMS), for distress, urgency

and safety communication and general communications using telephony for subsequent communications.

The present document is part 5 of a multi-part deliverable that covers the requirements to be fulfilled by equipment that

is integrated with a handheld transceiver.

These requirements include the relevant provisions and the guidelines of the IMO as detailed in MSC/Circ.803 [i.1] for

non-SOLAS vessels participating in the GMDSS.
2 References
2.1 Normative references

References are either specific (identified by date of publication and/or edition number or version number) or

non-specific. For specific references, only the cited version applies. For non-specific references, the latest version of the

referenced document (including any amendments) applies.

Referenced documents which are not found to be publicly available in the expected location might be found at

https://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.

The following referenced documents are necessary for the application of the present document.

[1] ITU Radio Regulations (2016).

[2] Recommendation ITU-R M.493-15 (01/2019): "Digital selective-calling system for use in the

maritime mobile service".
2.2 Informative references

References are either specific (identified by date of publication and/or edition number or version number) or

non-specific. For specific references, only the cited version applies. For non-specific references, the latest version of the

referenced document (including any amendments) applies.

NOTE: While any hyperlinks included in this clause were valid at the time of publication, ETSI cannot guarantee

their long term validity.

The following referenced documents are not necessary for the application of the present document but they assist the

user with regard to a particular subject area.

[i.1] IMO Circular MSC/Circ.803: "Participation of non-SOLAS ships in the Global Maritime Distress

and Safety System (GMDSS)".

[i.2] ETSI EN 300 338-1: "Technical characteristics and methods of measurement for equipment for

generation, transmission and reception of Digital Selective Calling (DSC) in the maritime MF,

MF/HF and/or VHF mobile service; Part 1: Common requirements".

[i.3] Recommendation ITU-R M.493: "Digital selective-calling system for use in the maritime mobile

service".
ETSI
---------------------- Page: 7 ----------------------
8 ETSI EN 300 338-5 V1.3.1 (2020-06)
3 Definition of terms, symbols and abbreviations
3.1 Terms
For the purposes of the present document, the following terms apply:

acknowledged: automated procedure which indicates that the objective of the initial DSC message has been achieved

active: automated procedure which has control of the receiver and transmitter and is thus able to engage in subsequent

communications and receive DSC messages

automated procedure: set of actions necessary to complete the objective of an initiating DSC message or non DSC

communication event

NOTE 1: Four DSC automated procedures are designed to process these. They are the receiving of distress DSC

messages, the receiving of non-distress DSC messages, the sending of distress DSC alert attempts and the

sending of non-distress DSC messages. In addition a fifth procedure is designed to handle non DSC

communication events.
NOTE 2: These automated procedures are called:
 Received distress automated procedure.
 Sending distress automated procedure.
 Received non-distress automated procedure.
 Sending non-distress automated procedure.
 Communications automated procedure.

class H: handheld class intended to provide minimum facilities for VHF DSC distress, urgency and safety as well as

routine calling and reception, not necessarily in full accordance with IMO GMDSS carriage requirements for VHF

installations

NOTE: For handheld Class H VHF a reduced functionality is permitted compared to a fixed VHF class D.

critical errors: set of information characters obtained from one or more received DSC messages is considered to have

critical errors if the automated procedure needs information characters from that set in order to proceed or perform any

task, but the required information characters are in error

EXAMPLE: An acknowledgement cannot be composed to an individual DSC message that has errors in the

sender's MMSI.

default: value selected or an action taken by the equipment software in the absence of any operator input

distress alert: name given to the single distress DSC message with the format symbol 112

distress alert attempt: set of distress alerts sent by a vessel when in distress

NOTE: A distress alert DSC message by itself is never intentionally sent by a vessel in distress. For example, the

single frequency distress alert attempt consists of five consecutive distress alerts with no break in between

each distress alert.

distress DSC message: DSC message or acknowledgement containing the distress information

distress event: unique distress situation identified by two parameters of the distress information; the MMSI of the

vessel in distress and the nature of distress

distress information: symbols within a DSC message describing a distress situation consisting of the MMSI of the

vessel in distress, the nature of distress, the position of the vessel in distress, the UTC time of that position and the mode

of subsequent communication
engaged: equipment that is busy handling an aut
...

Final draft ETSI EN 300 338-5 V1.3.1 (2020-03)
EUROPEAN STANDARD
Technical characteristics and methods of measurement
for equipment for generation, transmission
and reception of Digital Selective Calling (DSC)
in the maritime MF, MF/HF and/or VHF mobile service;
Part 5: Handheld VHF Class H DSC
---------------------- Page: 1 ----------------------
2 Final draft ETSI EN 300 338-5 V1.3.1 (2020-03)
Reference
REN/ERM-TGMAR-603
Keywords
DSC, GMDSS, maritime, radio
ETSI
650 Route des Lucioles
F-06921 Sophia Antipolis Cedex - FRANCE
Tel.: +33 4 92 94 42 00 Fax: +33 4 93 65 47 16
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: 2 ----------------------
3 Final draft ETSI EN 300 338-5 V1.3.1 (2020-03)
Contents

Intellectual Property Rights ................................................................................................................................ 6

Foreword ............................................................................................................................................................. 6

Modal verbs terminology .................................................................................................................................... 6

1 Scope ........................................................................................................................................................ 7

2 References ................................................................................................................................................ 7

2.1 Normative references ......................................................................................................................................... 7

2.2 Informative references ........................................................................................................................................ 7

3 Definition of terms, symbols and abbreviations ....................................................................................... 8

3.1 Terms .................................................................................................................................................................. 8

3.2 Symbols .............................................................................................................................................................. 9

3.3 Abbreviations ..................................................................................................................................................... 9

4 Controls and Indicators in handheld Class H DSC Equipment .............................................................. 10

4.1 Visual indication .............................................................................................................................................. 10

4.1.0 General ........................................................................................................................................................ 10

4.1.1 Primary DSC alphanumeric display ............................................................................................................ 10

4.1.1.0 General Requirements ........................................................................................................................... 10

4.1.1.1 Additional display information ............................................................................................................. 10

4.1.2 Handling visual information ....................................................................................................................... 11

5 Technical requirements .......................................................................................................................... 11

5.1 Facilities for DSC transmission and reception ................................................................................................. 11

5.1.1 GNSS receiver ............................................................................................................................................ 11

5.1.2 CH:70 receiver ............................................................................................................................................ 11

5.2 Facilities for coding and decoding of DSC ...................................................................................................... 11

5.2.1 Call functions .............................................................................................................................................. 11

5.2.2 INDIVIDUAL calls .................................................................................................................................... 11

5.2.3 ALL SHIPS calls ........................................................................................................................................ 12

5.2.4 DSC call functionality ................................................................................................................................ 12

6 Automated and Non-Automated Procedure Requirements in handheld Class H DSC Equipment ........ 12

6.1 Introduction ...................................................................................................................................................... 12

6.2 Non-automated features ................................................................................................................................... 13

6.2.1 DSC Message Composition ........................................................................................................................ 13

6.2.2 Transmission of DSC messages and prioritized wait .................................................................................. 14

6.2.3 Alarms ........................................................................................................................................................ 14

6.3 Standby ............................................................................................................................................................. 14

6.4 Sending distress automated procedure ............................................................................................................. 15

6.4.1 Procedure .................................................................................................................................................... 15

6.4.2 Tasks ........................................................................................................................................................... 16

6.4.3 Display ........................................................................................................................................................ 17

6.4.3.0 General Display Requirements .............................................................................................................. 17

6.4.3.1 Examples of sending distress procedure displays on handheld VHF equipment .................................. 18

6.4.4 Dedicated distress button sub procedure ..................................................................................................... 18

6.4.5 Transmission of the alert attempt ................................................................................................................ 19

6.4.6 Updating position ........................................................................................................................................ 19

6.4.7 Handling received DSC Messages .............................................................................................................. 19

6.4.8 Alarms ........................................................................................................................................................ 19

6.4.9 Determining Subsequent communications .................................................................................................. 20

6.4.10 Automated tuning ....................................................................................................................................... 20

6.4.11 Cancelling the Distress Alert ...................................................................................................................... 20

6.4.11.0 General Requirements ........................................................................................................................... 20

6.4.11.1 Examples of cancel-distress displays on VHF equipment..................................................................... 20

6.4.12 Acknowledgements ..................................................................................................................................... 21

6.4.13 Termination................................................................................................................................................. 21

6.4.14 Warnings ..................................................................................................................................................... 21

ETSI
---------------------- Page: 3 ----------------------
4 Final draft ETSI EN 300 338-5 V1.3.1 (2020-03)

6.5 Receiving distress automated procedure .......................................................................................................... 21

6.5.1 Procedure .................................................................................................................................................... 21

6.5.2 Tasks ........................................................................................................................................................... 22

6.5.3 Display ........................................................................................................................................................ 23

6.5.3.0 General Display Requirements .............................................................................................................. 23

6.5.3.1 Examples of received distress procedure displays on VHF equipment ................................................. 23

6.5.4 Handling received DSC Messages .............................................................................................................. 24

6.5.5 Alarms ........................................................................................................................................................ 24

6.5.6 Determining Subsequent communications .................................................................................................. 24

6.5.7 Automated tuning ....................................................................................................................................... 24

6.5.8 Acknowledgements ..................................................................................................................................... 25

6.5.9 Termination................................................................................................................................................. 25

6.5.10 Warnings ..................................................................................................................................................... 25

6.6 Sending non-distress automated procedure ...................................................................................................... 25

6.6.1 Procedure .................................................................................................................................................... 25

6.6.2 Tasks ........................................................................................................................................................... 26

6.6.3 Display ........................................................................................................................................................ 27

6.6.3.0 General Display Requirements .............................................................................................................. 27

6.6.3.1 Examples of sending non-distress procedures displays on VHF equipment ......................................... 28

6.6.4 Handling received DSC Messages .............................................................................................................. 28

6.6.5 Alarms ........................................................................................................................................................ 28

6.6.6 Automated tuning ....................................................................................................................................... 28

6.6.7 Delayed Acknowledgements ...................................................................................................................... 29

6.6.8 Termination................................................................................................................................................. 29

6.6.9 Warnings ..................................................................................................................................................... 29

6.7 Receiving non-distress automated procedure ................................................................................................... 29

6.7.1 Procedure .................................................................................................................................................... 29

6.7.2 Tasks ........................................................................................................................................................... 30

6.7.3 Display ........................................................................................................................................................ 31

6.7.3.0 General Display Requirements .............................................................................................................. 31

6.7.3.1 Examples of receiving non-distress procedures displays on VHF equipment ....................................... 32

6.7.4 Handling received DSC messages .............................................................................................................. 32

6.7.5 Alarms ........................................................................................................................................................ 32

6.7.6 Automated tuning ....................................................................................................................................... 32

6.7.7 Acknowledgements ..................................................................................................................................... 33

6.7.8 Termination................................................................................................................................................. 33

6.7.9 Warnings ..................................................................................................................................................... 33

6.8 Communications automated procedure ............................................................................................................ 34

6.8.1 Procedure .................................................................................................................................................... 34

6.8.2 Tasks ........................................................................................................................................................... 34

6.8.3 Display ........................................................................................................................................................ 34

6.8.4 Handling received DSC Messages .............................................................................................................. 34

6.8.5 Tuning of the receiver and transmitter ........................................................................................................ 34

6.8.6 Termination................................................................................................................................................. 34

6.9 Handling incoming calls while the equipment is engaged ............................................................................... 35

6.9.1 Procedure .................................................................................................................................................... 35

6.9.2 Tasks ........................................................................................................................................................... 35

6.9.2.0 General .................................................................................................................................................. 35

6.9.2.1 Higher priority calls .............................................................................................................................. 35

6.9.2.1.0 General ............................................................................................................................................ 35

6.9.2.1.1 Higher priority calls - acceptance .................................................................................................... 35

6.9.2.1.2 Higher priority calls - non acceptance ............................................................................................. 36

6.9.2.2 Other calls ............................................................................................................................................. 36

6.9.2.3 Termination of automated procedures ................................................................................................... 36

6.9.2.4 Action after termination of an automated procedure ............................................................................. 36

6.9.2.5 Putting automated procedures on hold (optional) ................................................................................. 36

6.9.2.6 Controlling non-terminated automated procedures (optional) .............................................................. 36

Annex A (informative): DSC message composition ............................................................................. 38

A.1 Default values ......................................................................................................................................... 38

ETSI
---------------------- Page: 4 ----------------------
5 Final draft ETSI EN 300 338-5 V1.3.1 (2020-03)

Annex B (normative): Automated non-distress channel selection algorithm ................................. 39

Annex C (normative): Alarms ............................................................................................................. 40

C.1 Alarm specifications ............................................................................................................................... 40

C.2 Alarming with critical errors .................................................................................................................. 41

C.3 Default alarm sounds .............................................................................................................................. 41

C.4 Recommended alarm sounds .................................................................................................................. 41

History .............................................................................................................................................................. 43

ETSI
---------------------- Page: 5 ----------------------
6 Final draft ETSI EN 300 338-5 V1.3.1 (2020-03)
Intellectual Property Rights
Essential patents

IPRs essential or potentially essential to normative deliverables 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 (https://ipr.etsi.org/).

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.
Trademarks

The present document may include trademarks and/or tradenames which are asserted and/or registered by their owners.

ETSI claims no ownership of these except for any which are indicated as being the property of ETSI, and conveys no

right to use or reproduce any trademark and/or tradename. Mention of those trademarks in the present document does

not constitute an endorsement by ETSI of products, services or organizations associated with those trademarks.

Foreword

This final draft European Standard (EN) has been produced by ETSI Technical Committee Electromagnetic

compatibility and Radio spectrum Matters (ERM), and is now submitted for the Vote phase of the ETSI standards EN

Approval Procedure.

The present document is part 5 of a multi-part deliverable. Full details of the entire series can be found in part 1 [i.2].

Proposed national transposition dates
Date of latest announcement of this EN (doa): 3 months after ETSI publication
Date of latest publication of new National Standard
or endorsement of this EN (dop/e): 6 months after doa

Date of withdrawal of any conflicting National Standard (dow): 18 months after doa

Modal verbs terminology

In the present document "shall", "shall not", "should", "should not", "may", "need not", "will", "will not", "can" and

"cannot" are to be interpreted as described in clause 3.2 of the ETSI Drafting Rules (Verbal forms for the expression of

provisions).

"must" and "must not" are NOT allowed in ETSI deliverables except when used in direct citation.

ETSI
---------------------- Page: 6 ----------------------
7 Final draft ETSI EN 300 338-5 V1.3.1 (2020-03)
1 Scope

The present document states the minimum requirements for general communication for handheld VHF radios using the

handheld class H DSC for shipborne use.

Class H DSC may be used in the Very High Frequency (VHF) Maritime Mobile Service (MMS), for distress, urgency

and safety communication and general communications using telephony for subsequent communications.

The present document is part 5 of a multi-part deliverable that covers the requirements to be fulfilled by equipment that

is integrated with a handheld transceiver.

These requirements include the relevant provisions and the guidelines of the IMO as detailed in MSC/Circ.803 [i.1] for

non-SOLAS vessels participating in the GMDSS.
2 References
2.1 Normative references

References are either specific (identified by date of publication and/or edition number or version number) or

non-specific. For specific references, only the cited version applies. For non-specific references, the latest version of the

referenced document (including any amendments) applies.

Referenced documents which are not found to be publicly available in the expected location might be found at

https://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.

The following referenced documents are necessary for the application of the present document.

[1] ITU Radio Regulations (2016).

[2] Recommendation ITU-R M.493-15 (01/2019): "Digital selective-calling system for use in the

maritime mobile service".
2.2 Informative references

References are either specific (identified by date of publication and/or edition number or version number) or

non-specific. For specific references, only the cited version applies. For non-specific references, the latest version of the

referenced document (including any amendments) applies.

NOTE: While any hyperlinks included in this clause were valid at the time of publication, ETSI cannot guarantee

their long term validity.

The following referenced documents are not necessary for the application of the present document but they assist the

user with regard to a particular subject area.

[i.1] IMO Circular MSC/Circ-803: "Participation of non-SOLAS ships in the Global Maritime Distress

and Safety System (GMDSS)".

[i.2] ETSI EN 300 338-1: "Technical characteristics and methods of measurement for equipment for

generation, transmission and reception of Digital Selective Calling (DSC) in the maritime MF,

MF/HF and/or VHF mobile service; Part 1: Common requirements".

[i.3] Recommendation ITU-R M.493: "Digital selective-calling system for use in the maritime mobile

service".
ETSI
---------------------- Page: 7 ----------------------
8 Final draft ETSI EN 300 338-5 V1.3.1 (2020-03)
3 Definition of terms, symbols and abbreviations
3.1 Terms
For the purposes of the present document, the following terms apply:

acknowledged: automated procedure which indicates that the objective of the initial DSC message has been achieved

active: automated procedure which has control of the receiver and transmitter and is thus able to engage in subsequent

communications and receive DSC messages

automated procedure: set of actions necessary to complete the objective of an initiating DSC message or non DSC

communication event

NOTE 1: Four DSC automated procedures are designed to process these. They are the receiving of distress DSC

messages, the receiving of non-distress DSC messages, the sending of distress DSC alert attempts and the

sending of non-distress DSC messages. In addition a fifth procedure is designed to handle non DSC

communication events.
NOTE 2: These automated procedures are called:
 Received distress automated procedure.
 Sending distress automated procedure.
 Received non-distress automated procedure.
 Sending non-distress automated procedure.
 Communications automated procedure.

class H: handheld class intended to provide minimum facilities for VHF DSC distress, urgency and safety as well as

routine calling and reception, not necessarily in full accordance with IMO GMDSS carriage requirements for VHF

installations

NOTE: For handheld Class H VHF a reduced functionality is permitted compared to a fixed VHF class D.

critical errors: set of information characters obtained from one or more received DSC messages is considered to have

critical errors if the automated procedure needs information characters from that set in order to proceed or perform any

task, but the required information characters are in error

EXAMPLE: An acknowledgement cannot be composed to an individual DSC message that has errors in the

sender's MMSI.

default: value selected or an action taken by the equipment software in the absence of any operator input

distress alert: name given to the single distress DSC message with the format symbol 112

distress alert attempt: set of distress alerts sent by a vessel when in distress

NOTE: A distress alert DSC message by itself is never intentionally sent by a vessel in distress. For example, the

single frequency distress alert attempt consists of five consecutive distress alerts with no break in between

each distress alert.

distress DSC message: DSC message or acknowledgement containing the distress information

distress event: unique distress situation identified by two parameters of the distress information; the MMSI of the

vessel in distress and the nature of distress

distress information: symbols within a DSC message describing a distress situation consisting of the MMSI of the

vessel in distress,
...

Draft ETSI EN 300 338-5 V1.3.0 (2019-10)
EUROPEAN STANDARD
Technical characteristics and methods of measurement
for equipment for generation, transmission
and reception of Digital Selective Calling (DSC)
in the maritime MF, MF/HF and/or VHF mobile service;
Part 5: Handheld VHF Class H DSC
---------------------- Page: 1 ----------------------
2 Draft ETSI EN 300 338-5 V1.3.0 (2019-10)
Reference
REN/ERM-TGMAR-603
Keywords
DSC, GMDSS, maritime, radio
ETSI
650 Route des Lucioles
F-06921 Sophia Antipolis Cedex - FRANCE
Tel.: +33 4 92 94 42 00 Fax: +33 4 93 65 47 16
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:

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3 Draft ETSI EN 300 338-5 V1.3.0 (2019-10)
Contents

Intellectual Property Rights ................................................................................................................................ 6

Foreword ............................................................................................................................................................. 6

Modal verbs terminology .................................................................................................................................... 6

1 Scope ........................................................................................................................................................ 7

2 References ................................................................................................................................................ 7

2.1 Normative references ......................................................................................................................................... 7

2.2 Informative references ........................................................................................................................................ 7

3 Definition of terms, symbols and abbreviations ....................................................................................... 8

3.1 Terms .................................................................................................................................................................. 8

3.2 Symbols .............................................................................................................................................................. 9

3.3 Abbreviations ..................................................................................................................................................... 9

4 Controls and Indicators in handheld Class H DSC Equipment .............................................................. 10

4.1 Visual indication .............................................................................................................................................. 10

4.1.0 General ........................................................................................................................................................ 10

4.1.1 Primary DSC alphanumeric display ............................................................................................................ 10

4.1.1.0 General Requirements ........................................................................................................................... 10

4.1.1.1 Additional display information ............................................................................................................. 10

4.1.2 Handling visual information ....................................................................................................................... 11

5 Technical requirements .......................................................................................................................... 11

5.1 Facilities for DSC transmission and reception ................................................................................................. 11

5.1.1 GNSS receiver ............................................................................................................................................ 11

5.1.2 CH:70 receiver ............................................................................................................................................ 11

5.2 Facilities for coding and decoding of DSC ...................................................................................................... 11

5.2.1 Call functions .............................................................................................................................................. 11

5.2.2 INDIVIDUAL calls .................................................................................................................................... 11

5.2.3 ALL SHIPS calls ........................................................................................................................................ 12

5.2.4 DSC call functionality ................................................................................................................................ 12

6 Automated and Non-Automated Procedure Requirements in handheld Class H DSC Equipment ........ 12

6.1 Introduction ...................................................................................................................................................... 12

6.2 Non-automated features ................................................................................................................................... 13

6.2.1 DSC Message Composition ........................................................................................................................ 13

6.2.2 Transmission of DSC messages and prioritized wait .................................................................................. 14

6.2.3 Alarms ........................................................................................................................................................ 14

6.3 Standby ............................................................................................................................................................. 14

6.4 Sending distress automated procedure ............................................................................................................. 15

6.4.1 Procedure .................................................................................................................................................... 15

6.4.2 Tasks ........................................................................................................................................................... 16

6.4.3 Display ........................................................................................................................................................ 17

6.4.3.0 General Display Requirements .............................................................................................................. 17

6.4.3.1 Examples of sending distress procedure displays on handheld VHF equipment .................................. 18

6.4.4 Dedicated distress button sub procedure ..................................................................................................... 18

6.4.5 Transmission of the alert attempt ................................................................................................................ 19

6.4.6 Updating position ........................................................................................................................................ 19

6.4.7 Handling received DSC Messages .............................................................................................................. 19

6.4.8 Alarms ........................................................................................................................................................ 19

6.4.9 Determining Subsequent communications .................................................................................................. 20

6.4.10 Automated tuning ....................................................................................................................................... 20

6.4.11 Cancelling the Distress Alert ...................................................................................................................... 20

6.4.11.0 General Requirements ........................................................................................................................... 20

6.4.11.1 Examples of cancel-distress displays on VHF equipment..................................................................... 20

6.4.12 Acknowledgements ..................................................................................................................................... 21

6.4.13 Termination................................................................................................................................................. 21

6.4.14 Warnings ..................................................................................................................................................... 21

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4 Draft ETSI EN 300 338-5 V1.3.0 (2019-10)

6.5 Receiving distress automated procedure .......................................................................................................... 21

6.5.1 Procedure .................................................................................................................................................... 21

6.5.2 Tasks ........................................................................................................................................................... 22

6.5.3 Display ........................................................................................................................................................ 23

6.5.3.0 General Display Requirements .............................................................................................................. 23

6.5.3.1 Examples of received distress procedure displays on VHF equipment ................................................. 23

6.5.4 Handling received DSC Messages .............................................................................................................. 24

6.5.5 Alarms ........................................................................................................................................................ 24

6.5.6 Determining Subsequent communications .................................................................................................. 24

6.5.7 Automated tuning ....................................................................................................................................... 24

6.5.8 Acknowledgements ..................................................................................................................................... 25

6.5.9 Termination................................................................................................................................................. 25

6.5.10 Warnings ..................................................................................................................................................... 25

6.6 Sending non-distress automated procedure ...................................................................................................... 25

6.6.1 Procedure .................................................................................................................................................... 25

6.6.2 Tasks ........................................................................................................................................................... 26

6.6.3 Display ........................................................................................................................................................ 27

6.6.3.0 General Display Requirements .............................................................................................................. 27

6.6.3.1 Examples of sending non-distress procedures displays on VHF equipment ......................................... 28

6.6.4 Handling received DSC Messages .............................................................................................................. 28

6.6.5 Alarms ........................................................................................................................................................ 28

6.6.6 Automated tuning ....................................................................................................................................... 28

6.6.7 Delayed Acknowledgements ...................................................................................................................... 29

6.6.8 Termination................................................................................................................................................. 29

6.6.9 Warnings ..................................................................................................................................................... 29

6.7 Receiving non-distress automated procedure ................................................................................................... 29

6.7.1 Procedure .................................................................................................................................................... 29

6.7.2 Tasks ........................................................................................................................................................... 30

6.7.3 Display ........................................................................................................................................................ 31

6.7.3.0 General Display Requirements .............................................................................................................. 31

6.7.3.1 Examples of receiving non-distress procedures displays on VHF equipment ....................................... 32

6.7.4 Handling received DSC messages .............................................................................................................. 32

6.7.5 Alarms ........................................................................................................................................................ 32

6.7.6 Automated tuning ....................................................................................................................................... 32

6.7.7 Acknowledgements ..................................................................................................................................... 33

6.7.8 Termination................................................................................................................................................. 33

6.7.9 Warnings ..................................................................................................................................................... 33

6.8 Communications automated procedure ............................................................................................................ 34

6.8.1 Procedure .................................................................................................................................................... 34

6.8.2 Tasks ........................................................................................................................................................... 34

6.8.3 Display ........................................................................................................................................................ 34

6.8.4 Handling received DSC Messages .............................................................................................................. 34

6.8.5 Tuning of the receiver and transmitter ........................................................................................................ 34

6.8.6 Termination................................................................................................................................................. 34

6.9 Handling incoming calls while the equipment is engaged ............................................................................... 35

6.9.1 Procedure .................................................................................................................................................... 35

6.9.2 Tasks ........................................................................................................................................................... 35

6.9.2.0 General .................................................................................................................................................. 35

6.9.2.1 Higher priority calls .............................................................................................................................. 35

6.9.2.1.0 General ............................................................................................................................................ 35

6.9.2.1.1 Higher priority calls - acceptance .................................................................................................... 35

6.9.2.1.2 Higher priority calls - non acceptance ............................................................................................. 36

6.9.2.2 Other calls ............................................................................................................................................. 36

6.9.2.3 Termination of automated procedures ................................................................................................... 36

6.9.2.4 Action after termination of an automated procedure ............................................................................. 36

6.9.2.5 Putting automated procedures on hold (optional) ................................................................................. 36

6.9.2.6 Controlling non-terminated automated procedures (optional) .............................................................. 36

Annex A (informative): DSC message composition ............................................................................. 38

A.1 Default values ......................................................................................................................................... 38

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5 Draft ETSI EN 300 338-5 V1.3.0 (2019-10)

Annex B (normative): Automated non-distress channel selection algorithm ................................. 39

Annex C (normative): Alarms ............................................................................................................. 40

C.1 Alarm specifications ............................................................................................................................... 40

C.2 Alarming with critical errors .................................................................................................................. 41

C.3 Default alarm sounds .............................................................................................................................. 41

C.4 Recommended alarm sounds .................................................................................................................. 42

History .............................................................................................................................................................. 43

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6 Draft ETSI EN 300 338-5 V1.3.0 (2019-10)
Intellectual Property Rights
Essential patents

IPRs essential or potentially essential to normative deliverables 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 (https://ipr.etsi.org/).

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.
Trademarks

The present document may include trademarks and/or tradenames which are asserted and/or registered by their owners.

ETSI claims no ownership of these except for any which are indicated as being the property of ETSI, and conveys no

right to use or reproduce any trademark and/or tradename. Mention of those trademarks in the present document does

not constitute an endorsement by ETSI of products, services or organizations associated with those trademarks.

Foreword

This draft European Standard (EN) has been produced by ETSI Technical Committee Electromagnetic compatibility

and Radio spectrum Matters (ERM), and is now submitted for the combined Public Enquiry and Vote phase of the ETSI

standards EN Approval Procedure.

The present document is part 5 of a multi-part deliverable. Full details of the entire series can be found in part 1 [i.2].

Proposed national transposition dates
Date of latest announcement of this EN (doa): 3 months after ETSI publication
Date of latest publication of new National Standard
or endorsement of this EN (dop/e): 6 months after doa

Date of withdrawal of any conflicting National Standard (dow): 18 months after doa

Modal verbs terminology

In the present document "shall", "shall not", "should", "should not", "may", "need not", "will", "will not", "can" and

"cannot" are to be interpreted as described in clause 3.2 of the ETSI Drafting Rules (Verbal forms for the expression of

provisions).

"must" and "must not" are NOT allowed in ETSI deliverables except when used in direct citation.

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7 Draft ETSI EN 300 338-5 V1.3.0 (2019-10)
1 Scope

The present document states the minimum requirements for general communication for handheld VHF radios using the

handheld class H DSC for shipborne use.

Class H DSC may be used in the Very High Frequency (VHF) Maritime Mobile Service (MMS), for distress, urgency

and safety communication and general communications using telephony for subsequent communications.

The present document is part 5 of a multi-part deliverable that covers the requirements to be fulfilled by equipment that

is integrated with a handheld transceiver.

These requirements include the relevant provisions and the guidelines of the IMO as detailed in MSC/Circ.803 [i.1] for

non-SOLAS vessels participating in the GMDSS.
2 References
2.1 Normative references

References are either specific (identified by date of publication and/or edition number or version number) or

non-specific. For specific references, only the cited version applies. For non-specific references, the latest version of the

referenced document (including any amendments) applies.

Referenced documents which are not found to be publicly available in the expected location might be found at

https://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.

The following referenced documents are necessary for the application of the present document.

[1] ITU Radio Regulations (2016).

[2] Recommendation ITU-R M.493-15 (01/2019): "Digital selective-calling system for use in the

maritime mobile service".
2.2 Informative references

References are either specific (identified by date of publication and/or edition number or version number) or

non-specific. For specific references, only the cited version applies. For non-specific references, the latest version of the

referenced document (including any amendments) applies.

NOTE: While any hyperlinks included in this clause were valid at the time of publication, ETSI cannot guarantee

their long term validity.

The following referenced documents are not necessary for the application of the present document but they assist the

user with regard to a particular subject area.

[i.1] IMO Circular MSC/Circ-803: "Participation of non-SOLAS ships in the Global Maritime Distress

and Safety System (GMDSS)".

[i.2] ETSI EN 300 338-1: "Technical characteristics and methods of measurement for equipment for

generation, transmission and reception of Digital Selective Calling (DSC) in the maritime MF,

MF/HF and/or VHF mobile service; Part 1: Common requirements".
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8 Draft ETSI EN 300 338-5 V1.3.0 (2019-10)
3 Definition of terms, symbols and abbreviations
3.1 Terms
For the purposes of the present document, the following terms apply:

acknowledged: automated procedure which indicates that the objective of the initial DSC message has been achieved

active: automated procedure which has control of the receiver and transmitter and is thus able to engage in subsequent

communications and receive DSC messages

automated procedure: set of actions necessary to complete the objective of an initiating DSC message or non DSC

communication event

NOTE 1: Four DSC automated procedures are designed to process these. They are the receiving of distress DSC

messages, the receiving of non-distress DSC messages, the sending of distress DSC alert attempts and the

sending of non-distress DSC messages. In addition a fifth procedure is designed to handle non DSC

communication events.
NOTE 2: These automated procedures are called:
 Received distress automated procedure.
 Sending distress automated procedure.
 Received non-distress automated procedure.
 Sending non-distress automated procedure.
 Communications automated procedure.

class H: handheld class intended to provide minimum facilities for VHF DSC distress, urgency and safety as well as

routine calling and reception, not necessarily in full accordance with IMO GMDSS carriage requirements for VHF

installations

NOTE: For handheld Class H VHF a reduced functionality is permitted compared to a fixed VHF class D.

critical errors: set of information characters obtained from one or more received DSC messages is considered to have

critical errors if the automated procedure needs information characters from that set in order to proceed or perform any

task, but the required information characters are in error

EXAMPLE: An acknowledgement cannot be composed to an individual DSC message that has errors in the

sender's MMSI.

default: value selected or an action taken by the equipment software in the absence of any operator input

distress alert: name given to the single distress DSC message with the format symbol 112

distress alert attempt: set of distress alerts sent by a vessel when in distress

NOTE: A distress alert DSC message by itself is never intentionally sent by a vessel in distress. For example, the

single frequency distress alert attempt consists of five consecutive distress alerts with no break in between

each distress alert.

distress DSC message: DSC message or acknowledgement containing the distress information

distress event: unique distress situation identified by two parameters of the distress information; the MMSI of the

vessel in distress and the nature of distress

distress information: symbols within a DSC message describing a distress situation consisting of the MMSI of the

vessel in distress, the nature of distress, the position of the vessel in distress, the UTC time of that position and the mode

of subsequent communication
engaged
...

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