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JT/T 624-2026Technical requirements for the maintenance and repair of DSC system for coast stations (English PDF)

海(江)岸电台数字(DSC)系统维护和修理技术要求

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Issued by

Ministry of Transport

Level / Type

National · Recommended

Issue date

January 5, 2026

Implementation date

August 1, 2026

Scope

JT/T 624-2026 is the English-translated version of 海(江)岸电台数字(DSC)系统维护和修理技术要求.

JT/T 624-2026 — This standard specifies the basic requirements for the maintenance and repair of digital selective calling systems for coastal (river) radio stations, as well as the maintenance and repair technical requirements for intermediate frequency/high frequency transmitting equipment, intermediate frequency/high frequency receiving equipment, very high frequency transceiver equipment, antenna feeder subsystem, digital selective calling application subsystem, transmission subsystem, and power supply and distribution electronic system.

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Document preview — JT/T 624-2026

National Standard of the People's Republic of China

ICS: 47.020.70
Classification: R 29
Replacing: JT/T 624-2005

Issued by: Ministry of Transport

What this standard covers1
Document data2

What this standard covers

This standard specifies the basic requirements for the maintenance and repair of digital selective calling systems for coastal (river) radio stations, as well as the maintenance and repair technical requirements for intermediate frequency/high frequency transmitting equipment, intermediate frequency/high frequency receiving equipment, very high frequency transceiver equipment, antenna feeder subsystem, digital selective calling application subsystem, transmission subsystem, and power supply and distribution electronic system. This standard applies to the maintenance and repair of equipment and facilities for medium-frequency/high-frequency/VHF digital selective calling systems at coastal (river) radio stations.

Document data

International classification (ICS): 47.020.70.

Chinese classification (CCS): R29.

Supersedes the earlier edition JT/T 624-2005.

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This preview omits tables, figures, formulas and parts of the technical clauses. The complete document — all pages — is available in the English PDF.

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