Code of China Chinese Standard Classification Professional Classification ICS Classification Latest
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Standard No. Title Price(USD) Delivery Status Add to Cart
GB/T 13621-1992 Capacity series and radio-frequency channel arrangement and equipment main technical specifications for 100MHz-1GHz analog radio relay communication systems via email in business day superseded
GB/T 13621-1999 series and radio-frequency channel arrangement and equipment main technical specifications for 100~1 000MHz radio relay communication systems 240.0 via email in 1~3 business day valid
GB/T 7585-1987 series and radio-frequency channel arrangement for analog microwave relay systems 150.0 via email in 1~3 business day valid
YD/T 1712-2007 Environmental Requirements for Telecommunication Houses 120.0 via email in 1~3 business day valid
GB 6280-1986 Capacity series and frequency channels arrangement in 25 to 1000MHz land mobile telecommunication network 60.0 via email in 1~3 business day valid
YD/T 1713-2007 Technical Requirements and Testing Methods of Incoming Power Disturbance Alarm System for Main Distribution Frame 450.0 via email in 1~3 business day valid
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