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Database: 189759 (19 Oct 2025)
YD/T 909-1997 English PDF
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Standard Title (Description)
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YD/T 909-1997
English
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General Technical Requests of STM-1 SDH Microwave Telecommunication Systems for 4~11GHz
Obsolete
YD/T 909-1997
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Basic data
Standard ID
YD/T 909-1997 (YD/T909-1997)
Description (Translated English)
General Technical Requests of STM-1 SDH Microwave Telecommunication Systems for 4~11GHz
Sector / Industry
Telecommunication Industry Standard (Recommended)
Classification of Chinese Standard
M34
Word Count Estimation
29,236
Date of Issue
5/4/1997
Date of Implementation
7/1/1997
Regulation (derived from)
Ministry of Industry and Information Technology Notice 2013 No. 23
Summary
This standard specifies the technical requirements of the total 4 ~ 11GHz STM-1 SDH high-capacity digital microwave radio relay communication systems into the national public network must meet. This standard applies to the development, production, network planning, construction, and equipment selection circuit STM-1 SDH terrestrial microwave relay communication system.