IEC 61162-1:2010

Maritime navigation and radiocommunication equipment and systems - Digital interfaces - Part 1: Single talker and multiple listeners

IEC 61162-1:2010 contains the requirements for data communication between maritime electronic instruments, navigation and radiocommunication equipment when interconnected via an appropriate system. Is intended to support one-way serial data transmission from a single talker to one or more listeners. This data is in printable ASCII form and may include information such as position, speed, depth, frequency allocation, etc. Typical messages may be from about 11 to a maximum of 79 characters in length and generally require transmission no more rapidly than one message per second. For applications where a faster transmission rate is necessary, reference should be made to IEC 61162-2. The main changes with respect to the previous edition are listed below:
- certain sentences have been removed as they are not used by other standards prepared by technical committee 80;
- new sentences have been added; corrections have been made to certain sentences (ABK, BBM, DOR, FIR, SSD, TUT, and VTG);
- new fields have been added to certain sentences;
- three additional tests have been added to Annex B. The contents of the corrigendum of December 2013 have been included in this copy.

Matériels et systèmes de navigation et de radiocommunication maritimes - Interfaces numériques - Partie 1: Emetteur unique et récepteurs multiples

La CEI 61162-1:2010 contient les exigences pour la communication des données entre les instruments maritimes électroniques, les équipements de navigation et de radiocommunications lorsqu'ils sont interconnectés via un système approprié. La présente partie de la CEI 61162 est destinée à supporter l'émission unidirectionnelle de données série entre un émetteur unique et un ou plusieurs récepteurs. Ces données sont au format ASCII imprimable et peuvent inclure des informations telles que la position, la vitesse, la profondeur, l'allocation de fréquences, etc. Les messages types peuvent être de longueur comprise entre environ 11 et 79 caractères au maximum et nécessitent généralement une émission pas plus rapidement qu'un seul message à la seconde. Les définitions électriques de la présente norme ne sont pas destinées à gérer les applications à large bande passante comme les radars ou l'imagerie vidéo, ou encore les bases de données intensives et les applications de transfert de fichiers. En l'absence de disposition garantissant l'émission des messages et compte tenu de la capacité limitée de vérification des erreurs, il convient que la présente norme soit utilisée avec précaution dans toutes les applications de sécurité.

General Information

• Status: Published
• Publication Date: 23-Nov-2010
• ICS: 47.020.70 - Navigation and control equipment
• Technical Committee: TC 80 - Maritime navigation and radiocommunication equipment and systems
• Drafting Committee: WG 6 - TC 80/WG 6
• Current Stage: DELPUB - Deleted Publication
• Completion Date: 31-Aug-2016

Relations

• Revised: IEC 61162-1:2016 - Maritime navigation and radiocommunication equipment and systems - Digital interfaces - Part 1: Single talker and multiple listeners
• Effective Date: 05-Sep-2023

Standards Content (Sample)

IEC 61162-1
®
Edition 4.0 2010-11
INTERNATIONAL
STANDARD

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inside

Maritime navigation and radiocommunication equipment and systems – Digital
interfaces –
Part 1: Single talker and multiple listeners



IEC 61162-1:2010(E)

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THIS PUBLICATION IS COPYRIGHT PROTECTED
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All rights reserved. Unless otherwise specified, no part of this publication may be reproduced or utilized in any form
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IEC 61162-1
®
Edition 4.0 2010-11
INTERNATIONAL
STANDARD

colour
inside

Maritime navigation and radiocommunication equipment and systems – Digital
interfaces –
Part 1: Single talker and multiple listeners


INTERNATIONAL
ELECTROTECHNICAL
COMMISSION
PRICE CODE
XG
ICS 47.020.70 ISBN 978-2-88912-256-1
® Registered trademark of the International Electrotechnical Commission

---------------------- Page: 3 ----------------------
– 2 – 61162-1 Ó IEC:2010(E)
CONTENTS
FOREW ORD . 7
INTRODUCTION . 9
1 Scope . 10
2 Normative references . 10
3 Terms and definitions . 11
4 Manufacturer's documentation . 11
5 Hardware specification . 11
5.1 General . 11
5.2 Interconnecting wire. 11
5.3 Conductor definitions . 11
5.4 Electrical connections/shield requirements . 12
5.5 Connector . 12
5.6 Electrical signal characteristics. 12
5.6.1 General. 12
5.6.2 Signal state definitions . 12
5.6.3 Talker drive circuits . 12
5.6.4 Listener receive circuits . 12
5.6.5 Electrical isolation . 13
5.6.6 Maximum voltage on bus . 13
6 Data transmission . 13
7 Data format protocol . 14
7.1 Characters . 14
7.1.1 General. 14
7.1.2 Reserved characters . 14
7.1.3 Valid characters . 14
7.1.4 Undefined characters . 14
7.1.5 Character symbols . 14
7.2 Fields . 14
7.2.1 String . 14
7.2.2 Address field . 15
7.2.3 Data fields . 15
7.2.4 Checksum field . 16
7.2.5 Sequential message identifier field . 17
7.3 Sentences . 17
7.3.1 General structure . 17
7.3.2 Description of approved sentences . 17
7.3.3 Parametric sentences . 18
7.3.4 Encapsulation sentences . 19
7.3.5 Query sentences . 21
7.3.6 Proprietary sentences . 21
7.3.7 Command sentences . 22
7.3.8 Valid sentences . 23
7.3.9 Multi-sentence messages . 23
7.3.10 Sentence transmission timing . 23
7.3.11 Additions to approved sentences . 23

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61162-1 Ó IEC:2010(E) – 3 –
7.4 Error detection and handling. 24
7.5 Handling of deprecated sentences . 24
8 Data content . 24
8.1 Character definitions . 24
8.2 Field definitions . 27
8.3 Approved sentences . 29
8.3.1 General format . 29
8.3.2 AAM – Waypoint arrival alarm . 29
8.3.3 ABK – AIS addressed and binary broadcast acknowledgement . 29
8.3.4 ABM – AIS addressed binary and safety related message . 31
8.3.5 ACA – AIS channel assignment message . 31
8.3.6 ACK – Acknowledge alarm . 33
8.3.7 ACS – AIS channel management information source . 33
8.3.8 AIR – AIS interrogation request . 33
8.3.9 AKD – Acknowledge detail alarm condition . 35
8.3.10 ALA – Report detailed alarm condition . 35
8.3.11 ALR – Set alarm state . 36
8.3.12 APB – Heading/track controller (autopilot) sentence B . 37
8.3.13 BBM – AIS broadcast binary message . 37
8.3.14 BEC – Bearing and distance to waypoint – Dead reckoning . 38
8.3.15 BOD – Bearing origin to destination . 39
8.3.16 BWC – Bearing and distance to waypoint – Great circle . 39
8.3.17 BWR – Bearing and distance to waypoint – Rhumb line . 39
8.3.18 BWW – Bearing waypoint to waypoint . 40
8.3.19 CBR – Configure broadcast rates for AIS AtoN station message
command . 40
8.3.20 CUR – Water current layer – Multi-layer water current data . 41
8.3.21 DBT – Depth below transducer . 41
8.3.22 DDC – Display dimming control . 42
8.3.23 DOR – Door status detection . 42
8.3.24 DPT – Depth . 44
8.3.25 DSC – Digital selective calling information . 44
8.3.26 DSE – Expanded digital selective calling . 45
8.3.27 DTM – Datum reference . 45
8.3.28 ETL – Engine telegraph operation status . 46
8.3.29 EVE – General event message . 47
8.3.30 FIR – Fire detection . 47
8.3.31 FSI – Frequency set information . 49
8.3.32 GBS – GNSS satellite fault detection . 49
8.3.33 GEN – Generic binary information . 51
8.3.34 GFA – GNSS fix accuracy and integrity . 52
8.3.35 GGA – Global positioning system (GPS) fix data . 53
8.3.36 GLL – Geographic position – Latitude/longitude . 53
8.3.37 GNS – GNSS fix data . 54
8.3.38 GRS – GNSS range residuals . 55
8.3.39 GSA – GNSS DOP and active satellites . 57
8.3.40 GST – GNSS pseudorange noise statistics . 59
8.3.41 GSV – GNSS satellites in view . 60

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– 4 – 61162-1 Ó IEC:2010(E)
8.3.42 HBT – Heartbeat supervision sentence . 61
8.3.43 HDG – Heading, deviation and variation . 62
8.3.44 HDT – Heading true . 62
8.3.45 HMR – Heading monitor receive . 63
8.3.46 HMS – Heading monitor set . 63
8.3.47 HSC – Heading steering command . 64
8.3.48 HSS – Hull stress surveillance systems . 64
8.3.49 HTC – Heading/track control command; HTD – Heading /track
control data . 64
8.3.50 LR1 – AIS long-range reply sentence 1 . 66
8.3.51 LR2 – AIS long-range reply sentence 2 . 66
8.3.52 LR3 – AIS long-range reply sentence 3 . 67
8.3.53 LRF – AIS long-range function . 67
8.3.54 LRI – AIS long-range interrogation . 68
8.3.55 MEB – Message input for broadcast command . 69
8.3.56 MSK – MSK receiver interface . 71
8.3.57 MSS – MSK receiver signal status . 71
8.3.58 MTW – Water temperature . 71
8.3.59 MWD – Wind direction and speed . 71
8.3.60 MWV – Wind speed and angle . 72
8.3.61 NAK – Negative acknowledgement . 72
8.3.62 NRM – NAVTEX receiver mask . 73
8.3.63 NRX – NAVTEX received message . 74
8.3.64 OSD – Own ship data . 75
8.3.65 POS – Device position and ship dimensions report or configuration
command . 76
8.3.66 PRC – Propulsion remote control status . 77
8.3.67 RMA – Recommended minimum specific LORAN-C data . 78
8.3.68 RMB – Recommended minimum navigation information . 79
8.3.69 RMC – Recommended minimum specific GNSS data . 79
8.3.70 ROR – Rudder order status . 81
8.3.71 ROT – Rate of turn . 81
8.3.72 RPM – Revolutions . 81
8.3.73 RSA – Rudder sensor angle . 81
8.3.74 RSD – Radar system data . 82
8.3.75 RTE – Routes . 82
8.3.76 SFI – Scanning frequency information . 83
8.3.77 SSD – AIS ship static data . 83
8.3.78 STN – Multiple data ID . 85
8.3.79 THS – True heading and status . 85
8.3.80 TLB – Target label . 85
8.3.81 TLL – Target latitude and longitude . 86
8.3.82 TRC – Thruster control data . 86
8.3.83 TRD – Thruster response data . 87
8.3.84 TTD – Tracked target data . 87
8.3.85 TTM – Tracked target message . 90
8.3.86 TUT – Transmission of multi-language text . 90
8.3.87 TXT – Text transmission . 92
8.3.88 UID – User identification code transmission . 92

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61162-1 Ó IEC:2010(E) – 5 –
8.3.89 VBW – Dual ground/water speed. 93
8.3.90 VDM – AIS VHF data-link message . 93
8.3.91 VDO – AIS VHF data-link own-vessel report . 94
8.3.92 VDR – Set and drift. 94
8.3.93 VER – Version . 95
8.3.94 VHW – Water speed and heading . 96
8.3.95 VLW – Dual ground/water distance . 96
8.3.96 VPW – Speed measured parallel to wind . 96
8.3.97 VSD – AIS voyage static data . 96
8.3.98 VTG – Course over ground and ground speed . 98
8.3.99 WAT – Water level detection . 98
8.3.100 WCV – Waypoint closure velocity . 99
8.3.101 WNC – Distance waypoint to waypoint . 99
8.3.102 WPL – Waypoint location . 99
8.3.103 XDR – Transducer measurements . 100
8.3.104 XTE – Cross-track error, measured . 101
8.3.105 XTR – Cross-track error, dead reckoning . 101
8.3.106 ZDA – Time and date . 101
8.3.107 ZDL – Time and distance to variable point . 102
8.3.108 ZFO – UTC and time from origin waypoint . 102
8.3.109 ZTG – UTC and time to destination waypoint . 102
9 Applications . 102
9.1 Example parametric sentences . 102
9.1.1 General. 102
9.1.2 Example 1 – LORAN-C latitude/longitude . 102
9.1.3 Example 2 – LORAN-C arrival alarm . 103
9.1.4 Example 3 – Proprietary sentence . 103
9.1.5 Example 4 – RMA examples . 104
9.1.6 Example 5 – FSI examples . 104
9.1.7 Example 6 – MSK/MSS examples . 105
9.1.8 Example 7 – DSC and DSE sentences . 105
9.1.9 Example 8 – FIR, DOR and WAT sentences . 106
9.2 Example encapsulation sentences . 106
9.3 Examples of receiver diagrams. 106
Annex A (informative) Glossary . 108
Annex B (normative) Guidelines for methods of testing and required test results . 116
Annex C (normative) Six-bit binary field conversion . 122
Annex D (normative) Alarm system fields . 125
Annex E (informative) Example of use of FIR, DOR and WAT sentences . 135
Annex F (informative) Example encapsulation sentence . 139
Bibliography . 145

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– 6 – 61162-1 Ó IEC:2010(E)
Figure 1 – Listener receive circuit . 13
Figure 2 – Data transmission format . 14
Figure 3 – Example 1, J-FET, N channel, opto-isolator based listener circuit . 106
Figure 4 – Example 2, NPN opto-isolator based listener circuit. 107
Figure C.1 – 6-bit binary code converted to valid IEC 61162-1 character . 123
Figure C.2 – Valid IEC 61162-1 character converted to 6-bit binary code . 124
Figure E.1 – Example system diagram . 136
Figure F.1 – Message data format . 140
Figure F.2 – Work sheet for decoding and interpreting encapsulated string . 144

Table 1 – Reserved characters . 24
Table 2 – Valid characters . 25
Table 3 – Character symbol . 26
Table 4 – Talker identifier mnemonics . 27
Table 5 – Field type summary . 28
Table B.1 – Example – Data string GGA sent by the EUT to the test receiver
(listener) . 119
Table B.2 – Checksum . 120
Table B.3 – Example – Data string GGA received by the EUT . 120
Table B.4 – Example – Checksum . 121
Table B.5 – Break of data line. 121
Table C.1 – Six-bit binary field conversion table . 122
Table D.1 – System alarm fields . 125
Table F.1 – Example message from ITU-R M.1371 . 143

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61162-1 Ó IEC:2010(E) – 7 –
INTERNATIONAL ELECTROTECHNICAL COMMISSION
___________

MARITIME NAVIGATION AND RADIOCOMMUNICATION
EQUIPMENT AND SYSTEMS –
DIGITAL INTERFACES –

Part 1: Single talker and multiple listeners


FOREWORD
1) The International Electrotechnical Commission (IEC) is a worldwide organization for standardization comprising
all national electrotechnical committees (IEC National Committees). The object of IEC is to promote international
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9) Attention is drawn to the possibility that some of the elements of this IEC Publication may be the subject of
patent rights. IEC shall not be held responsible for identifying any or all such patent rights.
International Standard IEC 61162-1 has been prepared by IEC technical committee 80:
Maritime navigation and radiocommunication equipment and systems.
This fourth edition cancels and replaces the third edition published in 2007, and constitutes
a technical revision.
The main changes with respect to the previous edition are listed below:
· in Table 1 the “comment” block delimiter has been renamed “TAG” block delimiter,
· new identifiers have been added to Table 4,
· the following sentences have been removed from 8.3 as they are not used by other
standards prepared by technical committee 80: ALM and MLA which described almanac
data from satellite navigation systems, DCN which described DECCA data, DSI and DSR

---------------------- Page: 9 ----------------------
– 8 – 61162-1  IEC:2010(E)
which controlled the DSC transponder, GLC and LCD which described LORAN data, and
GMP which supported land use of map projections,
 new sentences CBR, GFA, HBT, NAK, MEB, POS, TTD and VER have been added,
 corrections have been made to the following sentences: ABK, BBM, DOR, FIR, SSD, TUT,
and VTG,
 extra fields have been added to AIR to support further ITU messages,
 new fields have been added to GBS, GRS, GSA and GSV to support new satellite
navigation systems,
 a new navigational status indicator has been added to GNS and RMC,
 a new sentence status flag had been added to DDC, FSI, HSC and NRM,
 three additional tests have been added to Annex B.
The text of this standard is based on the following documents:
FDIS Report on voting
80/606/FDIS 80/609/RVD

Full information on the
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IEC 61162-1
®


Edition 4.0 2010-11
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
colour
inside


Maritime navigation and radiocommunication equipment and systems – Digital
interfaces –
Part 1: Single talker and multiple listeners

Matériels et systèmes de navigation et de radiocommunication maritimes –
Interfaces numériques –
Partie 1: Émetteur unique et récepteurs multiples

IEC 61162-1:2010-11(EN-FR)

---------------------- Page: 1 ----------------------
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IEC 61162-1

®


Edition 4.0 2010-11




INTERNATIONAL



STANDARD




NORME



INTERNATIONALE
colour

inside










Maritime navigation and radiocommunication equipment and systems – Digital

interfaces –

Part 1: Single talker and multiple listeners




Matériels et systèmes de navigation et de radiocommunication maritimes –

Interfaces numériques –


Partie 1: Émetteur unique et récepteurs multiples













INTERNATIONAL

ELECTROTECHNICAL

COMMISSION


COMMISSION

ELECTROTECHNIQUE

PRICE CODE
INTERNATIONALE

CODE PRIX XG


ICS 47.020.70 ISBN 978-2-8322-1327-8





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® Registered trademark of the International Electrotechnical Commission
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---------------------- Page: 3 ----------------------
– 2 – 61162-1  IEC:2010
CONTENTS
FOREWORD . 7
INTRODUCTION . 9
1 Scope . 10
2 Normative references. 10
3 Terms and definitions . 11
4 Manufacturer's documentation . 11
5 Hardware specification . 11
5.1 General . 11
5.2 Interconnecting wire. 11
5.3 Conductor definitions . 11
5.4 Electrical connections/shield requirements . 12
5.5 Connector . 12
5.6 Electrical signal characteristics . 12
5.6.1 General . 12
5.6.2 Signal state definitions . 12
5.6.3 Talker drive circuits. 12
5.6.4 Listener receive circuits . 12
5.6.5 Electrical isolation . 13
5.6.6 Maximum voltage on bus . 13
6 Data transmission . 13
7 Data format protocol . 14
7.1 Characters. 14
7.1.1 General . 14
7.1.2 Reserved characters . 14
7.1.3 Valid characters . 14
7.1.4 Undefined characters . 14
7.1.5 Character symbols . 14
7.2 Fields . 14
7.2.1 String. 14
7.2.2 Address field . 15
7.2.3 Data fields . 15
7.2.4 Checksum field . 16
7.2.5 Sequential message identifier field . 16
7.3 Sentences . 17
7.3.1 General structure . 17
7.3.2 Description of approved sentences . 17
7.3.3 Parametric sentences . 18
7.3.4 Encapsulation sentences . 19
7.3.5 Query sentences . 21
7.3.6 Proprietary sentences . 21
7.3.7 Command sentences . 22
7.3.8 Valid sentences . 23
7.3.9 Multi-sentence messages . 23
7.3.10 Sentence transmission timing. 23
7.3.11 Additions to approved sentences . 23
7.4 Error detection and handling . 23

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61162-1  IEC:2010 – 3 –
7.5 Handling of deprecated sentences . 24
8 Data content . 24
8.1 Character definitions . 24
8.2 Field definitions . 27
8.3 Approved sentences . 29
8.3.1 General format. 29
8.3.2 AAM – Waypoint arrival alarm . 29
8.3.3 ABK – AIS addressed and binary broadcast acknowledgement . 29
8.3.4 ABM – AIS addressed binary and safety related message. 31
8.3.5 ACA – AIS channel assignment message . 31
8.3.6 ACK – Acknowledge alarm . 33
8.3.7 ACS – AIS channel management information source . 33
8.3.8 AIR – AIS interrogation request . 33
8.3.9 AKD – Acknowledge detail alarm condition . 35
8.3.10 ALA – Report detailed alarm condition . 35
8.3.11 ALR – Set alarm state . 36
8.3.12 APB – Heading/track controller (autopilot) sentence B . 37
8.3.13 BBM – AIS broadcast binary message . 37
8.3.14 BEC – Bearing and distance to waypoint – Dead reckoning . 38
8.3.15 BOD – Bearing origin to destination . 39
8.3.16 BWC – Bearing and distance to waypoint – Great circle . 39
8.3.17 BWR – Bearing and distance to waypoint – Rhumb line . 39
8.3.18 BWW – Bearing waypoint to waypoint . 40
8.3.19 CBR – Configure broadcast rates for AIS AtoN station message
command . 40
8.3.20 CUR – Water current layer – Multi-layer water current data . 41
8.3.21 DBT – Depth below transducer . 41
8.3.22 DDC – Display dimming control . 42
8.3.23 DOR – Door status detection . 42
8.3.24 DPT – Depth . 44
8.3.25 DSC – Digital selective calling information . 44
8.3.26 DSE – Expanded digital selective calling . 45
8.3.27 DTM – Datum reference . 45
8.3.28 ETL – Engine telegraph operation status . 46
8.3.29 EVE – General event message . 47
8.3.30 FIR – Fire detection . 47
8.3.31 FSI – Frequency set information . 49
8.3.32 GBS – GNSS satellite fault detection . 49
8.3.33 GEN – Generic binary information . 51
8.3.34 GFA – GNSS fix accuracy and integrity . 52
8.3.35 GGA – Global positioning system (GPS) fix data . 53
8.3.36 GLL – Geographic position – Latitude/longitude . 53
8.3.37 GNS – GNSS fix data . 54
8.3.38 GRS – GNSS range residuals . 55
8.3.39 GSA – GNSS DOP and active satellites . 57
8.3.40 GST – GNSS pseudorange noise statistics . 59
8.3.41 GSV – GNSS satellites in view . 60
8.3.42 HBT – Heartbeat supervision sentence . 61
8.3.43 HDG – Heading, deviation and variation . 62

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8.3.44 HDT – Heading true . 62
8.3.45 HMR – Heading monitor receive . 63
8.3.46 HMS – Heading monitor set . 63
8.3.47 HSC – Heading steering command . 64
8.3.48 HSS – Hull stress surveillance systems . 64
8.3.49 HTC – Heading/track control command; HTD – Heading /track control
data . 64
8.3.50 LR1 – AIS long-range reply sentence 1 . 66
8.3.51 LR2 – AIS long-range reply sentence 2 . 66
8.3.52 LR3 – AIS long-range reply sentence 3 . 67
8.3.53 LRF – AIS long-range function . 67
8.3.54 LRI – AIS long-range interrogation . 68
8.3.55 MEB – Message input for broadcast command . 69
8.3.56 MSK – MSK receiver interface . 71
8.3.57 MSS – MSK receiver signal status . 71
8.3.58 MTW – Water temperature . 71
8.3.59 MWD – Wind direction and speed . 71
8.3.60 MWV – Wind speed and angle . 72
8.3.61 NAK – Negative acknowledgement . 72
8.3.62 NRM – NAVTEX receiver mask . 73
8.3.63 NRX – NAVTEX received message . 74
8.3.64 OSD – Own ship data. 75
8.3.65 POS – Device position and ship dimensions report or configuration
command . 76
8.3.66 PRC – Propulsion remote control status . 77
8.3.67 RMA – Recommended minimum specific LORAN-C data . 78
8.3.68 RMB – Recommended minimum navigation information. 79
8.3.69 RMC – Recommended minimum specific GNSS data . 79
8.3.70 ROR – Rudder order status . 81
8.3.71 ROT – Rate of turn . 81
8.3.72 RPM – Revolutions . 81
8.3.73 RSA – Rudder sensor angle . 81
8.3.74 RSD – Radar system data . 82
8.3.75 RTE – Routes . 82
8.3.76 SFI – Scanning frequency information . 83
8.3.77 SSD – AIS ship static data . 83
8.3.78 STN – Multiple data ID . 85
8.3.79 THS – True heading and status . 85
8.3.80 TLB – Target label . 85
8.3.81 TLL – Target latitude and longitude . 86
8.3.82 TRC – Thruster control data . 86
8.3.83 TRD – Thruster response data . 87
8.3.84 TTD – Tracked target data . 87
8.3.85 TTM – Tracked target message . 90
8.3.86 TUT – Transmission of multi-language text . 90
8.3.87 TXT – Text transmission . 92
8.3.88 UID – User identification code transmission . 92
8.3.89 VBW – Dual ground/water speed . 93
8.3.90 VDM – AIS VHF data-link message . 93

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61162-1  IEC:2010 – 5 –
8.3.91 VDO – AIS VHF data-link own-vessel report . 94
8.3.92 VDR – Set and drift . 94
8.3.93 VER – Version . 95
8.3.94 VHW – Water speed and heading . 96
8.3.95 VLW – Dual ground/water distance . 96
8.3.96 VPW – Speed measured parallel to wind . 96
8.3.97 VSD – AIS voyage static data . 96
8.3.98 VTG – Course over ground and ground speed . 98
8.3.99 WAT – Water level detection . 98
8.3.100 WCV – Waypoint closure velocity . 99
8.3.101 WNC – Distance waypoint to waypoint . 99
8.3.102 WPL – Waypoint location . 99
8.3.103 XDR – Transducer measurements . 99
8.3.104 XTE – Cross-track error, measured . 101
8.3.105 XTR – Cross-track error, dead reckoning . 101
8.3.106 ZDA – Time and date . 101
8.3.107 ZDL – Time and distance to variable point . 102
8.3.108 ZFO – UTC and time from origin waypoint . 102
8.3.109 ZTG – UTC and time to destination waypoint. 102
9 Applications . 102
9.1 Example parametric sentences . 102
9.1.1 General . 102
9.1.2 Example 1 – LORAN-C latitude/longitude . 102
9.1.3 Example 2 – LORAN-C arrival alarm . 103
9.1.4 Example 3 – Proprietary sentence . 103
9.1.5 Example 4 – RMA examples . 104
9.1.6 Example 5 – FSI examples. 104
9.1.7 Example 6 – MSK/MSS examples . 105
9.1.8 Example 7 – DSC and DSE sentences . 105
9.1.9 Example 8 – FIR, DOR and WAT sentences . 106
9.2 Example encapsulation sentences . 106
9.3 Examples of receiver diagrams . 106
Annex A (informative) Glossary . 108
Annex B (normative) Guidelines for methods of testing and required test results . 115
Annex C (normative) Six-bit binary field conversion . 121
Annex D (normative) Alarm system fields . 124
Annex E (informative) Example of use of FIR, DOR and WAT sentences . 134
Annex F (informative) Example encapsulation sentence . 138
Bibliography . 144

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Figure 1 – Listener receive circuit . 13
Figure 2 – Data transmission format . 13
Figure 3 – Example 1, J-FET, N channel, opto-isolator based listener circuit . 106
Figure 4 – Example 2, NPN opto-isolator based listener circuit . 107
Figure C.1 – 6-bit binary code converted to valid IEC 61162-1 character . 122
Figure C.2 – Valid IEC 61162-1 character converted to 6-bit binary code . 123
Figure E.1 – Example system diagram . 135
Figure F.1 – Message data format . 139
Figure F.2 – Work sheet for decoding and interpreting encapsulated string . 143

Table 1 – Reserved characters . 24
Table 2 – Valid characters . 25
Table 3 – Character symbol . 26
Table 4 – Talker identifier mnemonics . 27
Table 5 – Field type summary . 28
Table B.1 – Example – Data string GGA sent by the EUT to the test receiver (listener) . 118
Table B.2 – Checksum . 119
Table B.3 – Example – Data string GGA received by the EUT . 119
Table B.4 – Example – Checksum . 120
Table B.5 – Break of data line . 120
Table C.1 – Six-bit binary field conversion table . 121
Table D.1 – System alarm fields .
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