GB 4958.1-1985 Measurement methods for equipment used in terrestrial radio-relay systems Part 1: Measurements common to subsystems and simulation systems Section 1 General principles (English Version)
General Administration of Quality Supervision, Inspection and Quarantine of the People‘s Republic of China
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1985GB 4958.1-1985 Measurement methods for equipment used in terrestrial radio-relay systems Part 1: Measurements common to subsystems and simulation systems Section 1 General principles