SIST EN 300 338-2 V1.5.1:2020

SLOVENSKI STANDARD
SIST EN 300 338-2 V1.5.1:2020
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

Technical characteristics and methods of measurement for equipment for generation,

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

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

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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 ............................................................................................................................................................ 10

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

4 Controls and Indicators in Class A DSC Equipment .............................................................................. 10

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

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

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

5.1.1 Multi-frequency distress alert attempts and watch receiver capabilities (MF/HF) ..................................... 11

5.1.2 Watch receiver capabilities (VHF) ............................................................................................................. 11

5.2 Remote alarms .................................................................................................................................................. 11

5.3 Galvanic isolation ............................................................................................................................................. 11

5.4 Manuals ............................................................................................................................................................ 11

6 Automated and Non-Automated Procedure Requirements in Class A DSC Equipment ....................... 11

6.1 Introduction ...................................................................................................................................................... 11

6.2 Non-automated features ................................................................................................................................... 12

6.2.0 General ........................................................................................................................................................ 12

6.2.1 DSC Message Composition ........................................................................................................................ 12

6.2.2 Transmission of DSC messages and prioritized wait .................................................................................. 13

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 VHF equipment .................................................. 18

6.4.4 Dedicated distress button sub procedure ..................................................................................................... 19

6.4.5 Transmission of the alert attempt ................................................................................................................ 20

6.4.6 Updating position ........................................................................................................................................ 20

6.4.7 Handling received DSC Messages .............................................................................................................. 20

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

6.4.9 Determining Subsequent communications .................................................................................................. 21

6.4.10 Automated tuning ....................................................................................................................................... 21

6.4.11 Cancelling the Distress Alert ...................................................................................................................... 21

6.4.11.0 General Requirements ........................................................................................................................... 21

6.4.11.1 Examples of cancel-distress displays on VHF equipment..................................................................... 22

6.4.12 Acknowledgments ...................................................................................................................................... 23

6.4.13 Termination................................................................................................................................................. 23

6.4.14 Warnings ..................................................................................................................................................... 23

6.5 Receiving distress automated procedure .......................................................................................................... 23

6.5.1 Procedure .................................................................................................................................................... 23

6.5.2 Tasks ........................................................................................................................................................... 25

6.5.3 Display ........................................................................................................................................................ 25

6.5.3.0 General Display Requirements .............................................................................................................. 25

6.5.3.1 Examples of received distress procedure displays on VHF equipment ................................................. 26

6.5.4 Handling received DSC Messages .............................................................................................................. 27

6.5.5 Alarms ........................................................................................................................................................ 27

6.5.6 Determining Subsequent communications .................................................................................................. 27

6.5.7 Automated tuning ....................................................................................................................................... 27

6.5.8 Acknowledgments ...................................................................................................................................... 28

6.5.9 Sending Relays and Acknowledgments ...................................................................................................... 28

6.5.10 Termination................................................................................................................................................. 28

6.5.11 Warnings ..................................................................................................................................................... 28

6.5.12 Handling events from man overboard devices (VHF only) ........................................................................ 29

6.5.12.1 General .................................................................................................................................................. 29

6.5.12.2 Display and tasks .................................................................................................................................. 29

6.5.12.3 Handling received DSC messages pertinent to the procedure ............................................................... 30

6.6 Sending non-distress automated procedure ...................................................................................................... 30

6.6.1 Procedure .................................................................................................................................................... 30

6.6.2 Tasks ........................................................................................................................................................... 31

6.6.3 Display ........................................................................................................................................................ 32

6.6.3.0 General Display Requirements .............................................................................................................. 32

6.6.3.1 Examples of sending non-distress procedures displays on VHF equipment ......................................... 33

6.6.4 Handling received DSC Messages .............................................................................................................. 33

6.6.5 Alarms ........................................................................................................................................................ 33

6.6.6 Automated tuning ....................................................................................................................................... 33

6.6.7 Delayed Acknowledgements ...................................................................................................................... 34

6.6.8 Termination................................................................................................................................................. 34

6.6.9 Warnings ..................................................................................................................................................... 34

6.7 Receiving non-distress automated procedure ................................................................................................... 34

6.7.1 Procedure .................................................................................................................................................... 34

6.7.2 Tasks ........................................................................................................................................................... 36

6.7.3 Display ........................................................................................................................................................ 36

6.7.3.0 General Display Requirements .............................................................................................................. 36

6.7.3.1 Examples of receiving non-distress procedures displays on VHF equipment ....................................... 37

6.7.4 Handling received DSC messages .............................................................................................................. 38

6.7.5 Alarms ........................................................................................................................................................ 38

6.7.6 Automated tuning ....................................................................................................................................... 38

6.7.7 Acknowledgments ...................................................................................................................................... 38

6.7.8 Termination................................................................................................................................................. 39

6.7.9 Warnings ..................................................................................................................................................... 39

6.8 Communications automated procedure ............................................................................................................ 39

6.8.1 Procedure .................................................................................................................................................... 39

6.8.2 Tasks ........................................................................................................................................................... 39

6.8.3 Display ........................................................................................................................................................ 40

6.8.4 Handling received DSC Messages .............................................................................................................. 40

6.8.5 Tuning of the general receiver and transmitter ........................................................................................... 40

6.8.6 Termination................................................................................................................................................. 40

6.9 Multiple automated procedures and parallel event handling ............................................................................ 40

6.9.1 Procedure .................................................................................................................................................... 40

6.9.2 Tasks ........................................................................................................................................................... 40

6.9.3 Examples of multiple procedure screens .................................................................................................... 41

Annex A (normative): DSC Message Composition ........................................................................... 43

A.1 Default values ......................................................................................................................................... 43

A.2 The default DROBOSE .......................................................................................................................... 44

A.3 Allowable non-distress DSC message parameters ................................................................................. 44

Annex B (normative): Radius-Centre point conversion and rounding algorithm ......................... 45

B.1 Radius-centre point conversion .............................................................................................................. 45

B.2 Rounding ................................................................................................................................................ 46

B.3 Special cases for either form of area data entry ..................................................................................... 46

Annex C (normative): Automated Non-Distress Channel/Frequency Selection Algorithm .......... 47

C.0 General ................................................................................................................................................... 47

C.1 VHF ........................................................................................................................................................ 47

C.2 HF ........................................................................................................................................................... 47

Annex D (normative): Alarms ............................................................................................................. 48

D.1 Alarm specifications ............................................................................................................................... 48

D.2 Alarming with critical errors .................................................................................................................. 49

D.3 Default alarm sounds .............................................................................................................................. 49

D.4 Other alarm sounds ................................................................................................................................. 50

History .............................................................................................................................................................. 51

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

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

The present document covers the operator interfaces and operating system for Class A DSC equipment.

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

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

The present document states the minimum requirements for equipment to be used for generation, transmission and

DSC is intended to be used in the Medium Frequency (MF), High Frequency (HF) and Very High Frequency (VHF)

bands of the Maritime Mobile Service (MMS), for both distress, safety and general communications.

The present document is part 2 of a multi-part deliverable that covers the requirements to be fulfilled by equipment that

is either integrated with a transmitter and/or a receiver or equipment that is a stand-alone DSC terminal and has the

• Class A: includes all the facilities defined in annex 1 of Recommendation ITU-R M.493-15 [3] and complies

with the IMO Global Maritime Distress and Safety System (GMDSS) carriage requirements for MF/HF

These requirements include the relevant provisions of the ITU Radio Regulations [2] and Recommendation ITU-R

RM.493-15 [3], the International Convention for the Safety Of Life At Sea (SOLAS) [1], and the relevant resolutions of

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

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

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

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

[4] IMO resolution MSC.97(73), section 14.6.4: "Adoption of the International Code of Safety for

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

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

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

[i.1] 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,

[i.2] MSC 302(87): "Adoption of performance standards for bridge alert management".

[i.3] IEC 61924-2 (Edition 1): "Maritime navigation and radiocommunication equipment and systems --

integrated navigation systems -- Part 2: Modular structure for INS -- operational and performance

requirements, methods of testing and required test results" (including IEC 61924-2 Corrigendum 1

[i.4] ETSI EN 300 338-6: "Technical characteristics and methods of measurement for equipment for

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

[i.5] Recommendation ITU-R M.541-10: "Operational procedures for the use of digital selective-calling

[i.6] Recommendation ITU-R M.585-8: "Assignment and use of identities in the maritime mobile

For the purposes of the present document, the terms given in ETSI EN 300 338-1 [i.1] and the following apply:

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

subsequent communications and receive DSC messages on both the watch receiver and general receiver