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YD/T 3251.5-2025Passive device for signal distributing system of mobile communications - Part 5: Combiner (English PDF)

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Issued by

Ministry of Industry and Information Technology

Level / Type

National · Recommended

Issue date

July 2, 2025

Implementation date

November 1, 2025

Scope

YD/T 3251.5-2025 (Passive device for signal distributing system of mobile communications - Part 5: Combiner) is available as an English-translated PDF.

YD/T 3251.5-2025 — This standard specifies the definition, classification, models, requirements, test methods, inspection rules, marking, packaging, transportation, and storage of combiner products used in mobile communication distribution systems.

This standard applies to combiners used in mobile communication distribution systems within the 400MHz to 3700MHz frequency band.

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Document preview — YD/T 3251.5-2025

National Standard of the People's Republic of China

ICS: 33.060
Classification: M 30
Replacing: YD/T 3251.5-2017

Issued by: Ministry of Industry and Information Technology

What this standard covers1
Document data2

What this standard covers

This standard specifies the definition, classification, models, requirements, test methods, inspection rules, marking, packaging, transportation, and storage of combiner products used in mobile communication distribution systems. This standard applies to combiners used in mobile communication distribution systems within the 400MHz to 3700MHz frequency band. Combiners in other frequency bands should refer to this standard.

Document data

International classification (ICS): 33.060.

Chinese classification (CCS): M30.

Supersedes the earlier edition YD/T 3251.5-2017.

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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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