SIST EN 300 338-5 V1.3.1:2020

SLOVENSKI STANDARD
oSIST prEN 300 338-5 V1.3.0:2019
01-december-2019
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 .............................................................................................................................................................. 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

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

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

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

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

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

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

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

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

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

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

[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,

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

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

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

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

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