YD/T 3251.7-2025 Active Industry standards-Postal and telecommunications

YD/T 3251.7-2025 Passive Devices for Mobile Communication Distribution Systems Part 7: Attenuators

YD/T 3251.7-2025 YD/T 3251.7-2025, Part 7: Attenuator for the Passive Devices of Mobile Communication Distribution System

Publish Date: 2025-07-02 Implement Date: 2025-11-01 For services related to genuine standard inquiry, procurement, translation, and other related services in China, please Contact Us

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Basic Information

Standard Code: YD/T 3251.7-2025

Standard Type: Industry standards

Standard Status: Active

is_force_gb: no

CCS Name: Optical communication equipment

ICS Name: Wireless communication

Publish Date: 2025-07-02

Implement Date: 2025-11-01

Development Information

Same series standard

YD/T 3251.1-2025 Mobile communication distribution system passive devices - Part 1: General requirements and test methods YD/T 3251.2-2025 Mobile communication distribution system passive devices - Part 2: Power divider YD/T 3251.3-2025 Passive devices for mobile communication distribution systems - Part 3: Couplers YD/T 3251.4-2025 Mobile communication distribution system passive device Part 4: Electrical bridges YD/T 3251.5-2025 Moving communication distribution system passive devices Part 5: Coaxial adapters (Combiners) YD/T 3251.6-2025 Mobile communication distribution system passive device - Part 6: Load

Replace the following standards

YD/T 3251.7-2017

Related Standards

GB 6280-1986 Abolished

GB 6280-1986 Capacity series and frequency channels arrangement in 25 to 1000MHz land mobile telecommunication network

Publish Date: 1986-04-14

GB/T 13721-1992 Abolished

GB/T 13721-1992 Methods of measurements of audio-frequency band and simulated systems for selective calling equipment used in the mobile services

Publish Date: 1992-10-04

GB/T 14617.1-1993 Replaced

GB/T 14617.1-1993 Propagation characteristics in land mobile service and fixed service—Part 1:Propagation characteristics in land mobile service

Publish Date: 1993-09-14

GB/T 14617.2-1993 Replaced

GB/T 14617.2-1993 Propagation characteristics in land mobile service and fixed service—Part 2:Propagation characteristics for the terrestrial fixed service in 100～1000 MHz

Publish Date: 1993-09-14

GB/T 14617.3-1993 Replaced

GB/T 14617.3-1993 Propagation characteristics in land mobile service and fixed service—Part 3:Propagation characteristics of line-of-sight radio relay communication systems

Publish Date: 1993-09-15

GB/T 15844.1-1995 Replaced

GB/T 15844.1-1995 General specification for radio transceiver employing F3E emission used in the mobile services

Publish Date: 1995-12-13