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GB/T 4958.6-1988 English PDF

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GB/T 4958.6-1988: Methods of measurement for equipment used in terrestrial radio-relay systems. Part 2: Measurements for sub-systems. Section Five. Frequency demodulators
Status: Obsolete
Standard IDContents [version]USDSTEP2[PDF] delivered inStandard Title (Description)StatusPDF
GB/T 4958.6-1988English359 Add to Cart 3 days [Need to translate] Methods of measurement for equipment used in terrestrial radio-relay systems. Part 2: Measurements for sub-systems. Section Five. Frequency demodulators Obsolete GB/T 4958.6-1988

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Basic data

Standard ID GB/T 4958.6-1988 (GB/T4958.6-1988)
Description (Translated English) Methods of measurement for equipment used in terrestrial radio-relay systems. Part 2: Measurements for sub-systems. Section Five. Frequency demodulators
Sector / Industry National Standard (Recommended)
Classification of Chinese Standard M34
Classification of International Standard 33.060.30
Word Count Estimation 9,957
Date of Issue 5/26/1988
Date of Implementation 1/1/1989
Adopted Standard IEC 60487-2-5, IDT
Issuing agency(ies) National Bureau of Standards
Summary This standard specifies the method for measuring the frequency demodulation mechanical and electrical characteristics. Because the sight radio-relay systems typically do not require a threshold characteristics, so is not included here. Also, if possible, substantially only consider demodulated measuring machine, comprising a base band part without demodulation unit - deemphasis network, and audio sub-carrier frequency signal, a pilot signal and an auxiliary signal related to a network. In the fourth quarter has been given frequency modulation measurement method machine. Modulation and demodulation baseband-end systems to measure, given in the third part of the standard sections.

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