SIST EN 61162-1:2011

Maritime navigation and radiocommunication equipment and systems - Digital interfaces - Part 1: Single talker and multiple listeners (IEC 61162-1:2010)

This part of IEC 61162 contains the requirements for data communication between maritime electronic instruments, navigation and radiocommunication equipment when interconnected via an appropriate system. This part of IEC 61162 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. The electrical definitions in this standard are not intended to accommodate high-bandwidth applications such as radar or video imagery, or intensive database or file transfer applications. Since there is no provision for guaranteed delivery of messages and only limited error checking capability, this standard should be used with caution in all safety applications. For applications where a faster transmission rate is necessary, reference should be made to IEC 61162-2.

Navigations- und Funkkommunikationsgeräte und -systeme für die Seeschifffahrt - Digitale Schnittstellen - Teil 1: Ein Datensender und mehrere Datenempfänger (IEC 61162-1:2010)

Matériels et systèmes de navigation et de radiocommunication maritimes - Interfaces numériques - Partie 1: Emetteur unique et récepteurs multiples (CEI 61162-1:2010)

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.

Pomorska navigacijska in radiokomunikacijska oprema in sistemi - Digitalni vmesniki - 1. del: Enosmerna komunikacija: en govorec - več poslušalcev (IEC 61162-1:2010)

Ta del IEC 61162 vsebuje zahteve za komunikacijo podatkov med pomorskimi elektronskimi instrumenti, navigacijsko in radiokomunikacijsko opremo, kjer so medsebojno povezani prek ustreznega sistema. Ta del IEC 611 je namenjen podpori prenosu enosmernih serijskih podatkov od enega govorca do več poslušalcev. Ti podatki so v natisljivem formatu ASCII in lahko vključujejo informacije, kot so položaj, hitrost, globina, dodelitev frekvence itd. Tipična sporočila so lahko dolga od 11 do največ 79 znakov in na splošno zahtevajo prenos, ki ni hitrejši od enega sporočila na sekundo. Električne definicije v tem standardu ne ustrezajo uporabam visokih pasovnih širin, kot je radar ali videopodoba, ali uporabam podatkovnih baz ali prenosu datotek. Ker ni nobene določbe za zagotovljeno dostavo sporočil in ker je zmožnost preverjanja napak omejena, se mora ta standard uporabljati previdno pri vseh varnostnih uporabah. Za uporabe, pri katerih se zahteva hitrejša stopnja prenosa, je potrebno sklicevanje na IEC 61162-2.

General Information

• Status: Withdrawn
• Publication Date: 03-Feb-2011
• Withdrawal Date: 04-Nov-2019
• ICS: 33.060.01 - Radiocommunications in general
• ICS: 47.020.70 - Navigation and control equipment
• Technical Committee: I11 - Imaginarni 11
• Current Stage: 9900 - Withdrawal (Adopted Project)
• Start Date: 05-Nov-2019
• Due Date: 28-Nov-2019
• Completion Date: 05-Nov-2019
• Ref Project: EN 61162-1:2011 - Maritime navigation and radiocommunication equipment and systems - Digital interfaces - Part 1: Single talker and multiple listeners

Relations

• Replaces: SIST EN 61162-1:2008 - Maritime navigation and radiocommunication equipment and systems - Digital interfaces -- Part 1: Single talker and multiple listeners
• Effective Date: 01-Jan-2014
• Replaced By: SIST EN 61162-1:2017 - Maritime navigation and radiocommunication equipment and systems - Digital interfaces - Part 1: Single talker and multiple listeners (IEC 61162-1:2016)
• Effective Date: 20-Dec-2016
• Replaced By: SIST EN 61162-1:2017 - Maritime navigation and radiocommunication equipment and systems - Digital interfaces - Part 1: Single talker and multiple listeners (IEC 61162-1:2016)
• Effective Date: 07-Jun-2022
• Revised: SIST EN 61162-1:2008 - Maritime navigation and radiocommunication equipment and systems - Digital interfaces -- Part 1: Single talker and multiple listeners
• Effective Date: 07-Jan-2014
• Revised: SIST EN 61162-1:2017 - Maritime navigation and radiocommunication equipment and systems - Digital interfaces - Part 1: Single talker and multiple listeners (IEC 61162-1:2016)
• Effective Date: 02-Jun-2015
• Replaces: SIST EN 61162-1:2008 - Maritime navigation and radiocommunication equipment and systems - Digital interfaces -- Part 1: Single talker and multiple listeners
• Effective Date: 29-Jan-2023
• Replaces: SIST EN 61162-1:2008 - Maritime navigation and radiocommunication equipment and systems - Digital interfaces -- Part 1: Single talker and multiple listeners
• Effective Date: 07-Jun-2022

Standards Content (Sample)

SLOVENSKI STANDARD
SIST EN 61162-1:2011
01-marec-2011
1DGRPHãþD
SIST EN 61162-1:2008
3RPRUVNDQDYLJDFLMVNDLQUDGLRNRPXQLNDFLMVNDRSUHPDLQVLVWHPL'LJLWDOQL
YPHVQLNLGHO(QRVPHUQDNRPXQLNDFLMDHQJRYRUHFYHþSRVOXãDOFHY,(&

Maritime navigation and radiocommunication equipment and systems - Digital interfaces
- Part 1: Single talker and multiple listeners (IEC 61162-1:2010)
Navigations- und Funkkommunikationsgeräte und -systeme für die Seeschifffahrt -
Digitale Schnittstellen - Teil 1: Ein Datensender und mehrere Datenempfänger (IEC
61162-1:2010)
Matériels et systèmes de navigation et de radiocommunication maritimes - Interfaces
numériques - Partie 1: Emetteur unique et récepteurs multiples (CEI 61162-1:2010)
Ta slovenski standard je istoveten z: EN 61162-1:2011
ICS:
33.060.01 Radijske komunikacije na Radiocommunications in
splošno general
47.020.70 Navigacijska in krmilna Navigation and control
oprema equipment
SIST EN 61162-1:2011 en
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

---------------------- Page: 1 ----------------------

SIST EN 61162-1:2011

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SIST EN 61162-1:2011

EUROPEAN STANDARD
EN 61162-1

NORME EUROPÉENNE
January 2011
EUROPÄISCHE NORM

ICS 47.020.70 Supersedes EN 61162-1:2008


English version


Maritime navigation and radiocommunication equipment and systems -
Digital interfaces -
Part 1: Single talker and multiple listeners
(IEC 61162-1:2010)


Matériels et systèmes de navigation et de Navigations- und
radiocommunication maritimes - Funkkommunikationsgeräte und -systeme
Interfaces numériques - für die Seeschifffahrt -
Partie 1: Emetteur unique et récepteurs Digitale Schnittstellen -
multiples Teil 2: Ein Datensender und mehrere
(CEI 61162-1:2010) Datenempfänger,
Hochgeschwindigkeitsübertragung
(IEC 61162-1:2010)




This European Standard was approved by CENELEC on 2011-01-01. CENELEC members are bound to comply
with the CEN/CENELEC Internal Regulations which stipulate the conditions for giving this European Standard
the status of a national standard without any alteration.

Up-to-date lists and bibliographical references concerning such national standards may be obtained on
application to the Central Secretariat or to any CENELEC member.

This European Standard exists in three official versions (English, French, German). A version in any other
language made by translation under the responsibility of a CENELEC member into its own language and notified
to the Central Secretariat has the same status as the official versions.

CENELEC members are the national electrotechnical committees of Austria, Belgium, Bulgaria, Croatia, Cyprus,
the Czech Republic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy,
Latvia, Lithuania, Luxembourg, Malta, the Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia,
Spain, Sweden, Switzerland and the United Kingdom.

CENELEC
European Committee for Electrotechnical Standardization
Comité Européen de Normalisation Electrotechnique
Europäisches Komitee für Elektrotechnische Normung

Management Centre: Avenue Marnix 17, B - 1000 Brussels


© 2011 CENELEC - All rights of exploitation in any form and by any means reserved worldwide for CENELEC members.
Ref. No. EN 61162-1:2011 E

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SIST EN 61162-1:2011
EN 61162-1:2011 - 2 -
Foreword
The text of document 80/606/FDIS, future edition 4 of IEC 61162-1, prepared by IEC TC 80, Maritime
navigation and radiocommunication equipment and systems, was submitted to the IEC-CENELEC
parallel vote and was approved by CENELEC as EN 61162-1 on 2011-01-01.
This European Standard supersedes EN 61162-1:2008.
The main changes with respect to EN 61162-1:2008 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 IEC technical committee 80: ALM and MLA which described almanac data from satellite
navigation systems, DCN which described DECCA data, DSI and DSR 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.
Attention is drawn to the possibility that some of the elements of this document may be the subject of
patent rights. CEN and CENELEC shall not be held responsible for identifying any or all such patent
rights.
The following dates were fixed:
– latest date by which the EN has to be implemented
at national level by publication of an identical
national standard or by endorsement (dop) 2011-10-01
– latest date by which the national standards conflicting
with the EN have to be withdrawn (dow) 2014-01-01
Annex ZA has been added by CENELEC.
__________
Endorsement notice
The text of the International Standard IEC 61162-1:2010 was approved by CENELEC as a European
Standard without any modification.
In the official version, for Bibliography, the following notes have to be added for the standards indicated:
IEC 61023 NOTE  Harmonized as EN 61023.
IEC 61075 NOTE  Harmonized as EN 61075.

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SIST EN 61162-1:2011
- 3 - EN 61162-1:2011
IEC 61097-1 NOTE  Harmonized as EN 61097-1.
IEC 61108 series NOTE  Harmonized in EN 61108 series (not modified).
IEC 61108-1 NOTE  Harmonized as EN 61108-1.
IEC 61108-2 NOTE  Harmonized as EN 61108-2.
IEC 61108-3 NOTE  Harmonized as EN 61108-3.
IEC 61108-4 NOTE  Harmonized as EN 61108-4.
IEC 61174 NOTE  Harmonized as EN 61174.
IEC 61993-2 NOTE  Harmonized as EN 61993-2.
IEC 61996 series NOTE  Harmonized in EN 61996 series (not modified).
IEC 61996-1 NOTE  Harmonized as EN 61996-1.
IEC 61996-2 NOTE  Harmonized as EN 61996-2.
IEC 62065 NOTE  Harmonized as EN 62065.
IEC 62252 NOTE  Harmonized as EN 62252.
IEC 62287-1 NOTE  Harmonized as EN 62287-1.
IEC 62288 NOTE  Harmonized as EN 62288.
IEC 62320-1 NOTE  Harmonized as EN 62320-1.
IEC 62320-2 NOTE  Harmonized as EN 62320-2.
IEC 62388 NOTE  Harmonized as EN 62388.
ISO 8728 NOTE  Harmonized as EN ISO 8728.
ISO 9875 NOTE  Harmonized as EN ISO 9875.
ISO 11606 NOTE  Harmonized as EN ISO 11606.
ISO 11674 NOTE  Harmonized as EN ISO 11674.
__________

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SIST EN 61162-1:2011
EN 61162-1:2011 - 4 -
Annex ZA
(normative)

Normative references to international publications
with their corresponding European publications

The following referenced documents are indispensable for the application of this document. For dated
references, only the edition cited applies. For undated references, the latest edition of the referenced
document (including any amendments) applies.

NOTE  When an international publication has been modified by common modifications, indicated by (mod), the relevant EN/HD
applies.

Publication Year Title EN/HD Year

IEC 60945 2002 Maritime navigation and radiocommunication EN 60945 2002
equipment and systems - General
requirements - Methods of testing and
required test results


IEC 61162-2 1998 Maritime navigation and radiocommunication EN 61162-2 1998
equipment and systems - Digital interfaces -
Part 2: Single talker and multiple listeners,
high-speed transmission


ISO/IEC 8859-1 1998 Information technology - 8-bit single-byte - -
coded graphic character sets -
Part 1: Latin alphabet No.1


ITU-T X.27/V.11 1996 Electrical characteristics for balanced double-- -
current interchange circuits operating at data
signalling rates up to 10 Mbit/s

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SIST EN 61162-1:2011

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

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SIST EN 61162-1:2011
– 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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SIST EN 61162-1:2011
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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SIST EN 61162-1:2011
– 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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SIST EN 61162-1:2011
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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SIST EN 61162-1:2011
– 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
(lis
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