GB/T 9391-2025Maritime navigation and radiocommunication equipment and systems - Shipborne radar - Performance requirements, methods of testingand required test results (English PDF)

Foreword

This document complies with the provisions of GB/T 1.1-2020 "Standardization Work Guidelines Part 1: Structure and Drafting Rules of Standardization Documents".

Drafting.

This document supersedes GB/T 9391-1988 "Technical Requirements and Usage Requirements for Marine Radar - Test Methods and Test Results", and is consistent with...

Compared with GB/T 9391-1988, apart from structural adjustments and editorial changes, the main technical changes are as follows.

a) A "Terms and Definitions" section has been added (see Chapter 3);

b) A "General Provisions" section has been added (see Chapter 4);

c) Added "Tests" (see Chapter 5);

d) Added "Radar Performance" (see Chapter 6);

e) Added "Display on the Monitor" (see Chapter 7);

f) Added "CCRP and this ship" (see Chapter 8);

g) Added "Navigation Tools" (see Chapter 9);

h) Added "Pointing, Motion, and Stability Modes" (see Chapter 10);

i) Added "collision avoidance assist" (see Chapter 11);

j) Added "Chart Radar (optional)" (see Chapter 12);

k) Added "Ergonomics Guidelines (Control Functions and Displays)" (see Chapter 13);

l) An "interface" has been added (see Chapter 14);

m) Added "Design, Maintenance, and Installation" (see Chapter 15);

n) Added "Alarms and Faults" (see Chapter 16);

o) Added "Environmental Testing" (see Chapter 17);

p) Added "Equipment Training and Documentation Provision" (see Chapter 18);

q) The "Purpose" section (see Chapter 2 of the 1988 edition) has been removed, and related content has been incorporated into Chapter 4;

r) The "Performance Requirements" section (see Chapter 3 of the 1988 edition) was removed, and the relevant content was incorporated into Chapters 4 through 13.

s) The section on "Safety Measures" (see Chapter 4 of the 1988 edition) has been removed, and related content has been incorporated into section 15.8;

t) The section "Test results for identification methods and requirements" (see Part II of the 1988 edition) has been deleted, and related content has been incorporated separately.

Chapters 6 through 18;

u) "External magnetic field interference" has been removed (see 3.14 in the 1988 edition);

v) The method for establishing the relationship between the radar cross-sections (echo areas) of two radar targets (Supplement) (see 1988 edition) Appendix A) is changed to the informative appendix "Calculation of Radar Cross Section (RCS) and Detection Range" (see Appendix C);

w) Added normative appendices "Useless Emissions of Radar Systems" (see Appendix B) and "Sensor Errors" (see Appendix E).

Normative Annex "IEC 61162 Statement Format" (see Annex H) and Normative Annex "Radar Control Functions/Indication Grouping" (See Appendix I).

This document adopts IEC 62388:2013 "Marine navigation and radio communication equipment and systems - Performance requirements, measurement...".

Test results according to the test methods and requirements.

The following minimal editorial changes have been made to this document.

---Incorporates the content of IEC 62388:2013/Cor.1.2014 (i.e., Errata No. 1 of 2014);

---An informative appendix, "Cockpit Alarm Guide" (see Appendix NA), has been added.

Please note that some content in this document may involve patents. The issuing organization of this document assumes no responsibility for identifying patents.

This document was proposed and is under the jurisdiction of the Ministry of Industry and Information Technology of the People's Republic of China.

1 Scope

This document specifies the minimum operational and performance requirements, test methods, and required test results for marine radar, which must be no less than those specified in IMO resolutions.

The performance standard adopted by MSC.192(79) is...

This document incorporates the performance criteria adopted by IMO Resolution MSC.192(79), as well as IMO Resolution A.694(17) and IEC 60945.

The relevant content in the General Requirements. In case of any discrepancy between this document and the requirements of IEC 60945, this document shall prevail.

2 Normative references

The contents of the following documents, through normative references within the text, constitute essential provisions of this document. Dated citations are not included.

For references to documents, only the version corresponding to that date applies to this document; for undated references, the latest version (including all amendments) applies.

This document.

IEC 60945 General requirements for marine navigation and radio communication equipment and systems – Test methods and test results of requirements (Mari-Note. GB/T 31843 (all parts) Marine navigation and radio communication equipment and systems [IEC 61162 (all parts)] IEC 61174 Marine navigation and radio communication equipment and systems - Electronic chart display and information system (ECDIS) - Operation and safety Note. GB/T 43053-2023 Operation and performance requirements of electronic chart display and information systems (ECDIS) for marine navigation and radio communication equipment and systems.

Requirements, test methods, and required test results (IEC 61174:2015, MOD) IEC 61924-2:2012 Marine navigation and radio communication equipment and systems – Part 2: Module structure of integrated navigation systems (INS) IEC 61993-2 Automatic Identification System (AIS) for Marine Navigation and Radio Communication Equipment and Systems - Part 2: General Automatic Identification Note. GB/T 46415-2025 Performance and testing requirements for Automatic Identification System (AIS) Class A equipment (IEC 61993-2:2018, MOD) IEC 61996-1:2013 Marine navigation and radio communication equipment and systems – Part 1: Marine voyage data recorders (VDRs)