GB/T 4958.3-1988 Methods of measurement for equipment used in terrestrial radio-relay systems--Part 3: Simulated systems--Section Six Measurements for sound-programme transmission (English Version)
This standard deals with measurement methods for analog channels of sound programs transmitted by radio-relay systems. These measurements relate to audio frequency bands only; are measurements of baseband requirements for radio-relay systems: including television (Part III, Section 3). Supplementary for Frequency Division Multiplexed Telephony (Part III, Section 4) and Mutual Interference (Part III, Section V), etc. In fact, voice channels can be generated by analog techniques using FM subcarriers (Appendix AA.
GB/T 4958.3-1988 history
1988GB/T 4958.3-1988 Methods of measurement for equipment used in terrestrial radio-relay systems--Part 3: Simulated systems--Section Six Measurements for sound-programme transmission
GB/T 4958.3-1988 Methods of measurement for equipment used in terrestrial radio-relay systems--Part 3: Simulated systems--Section Six Measurements for sound-programme transmission has been changed from SJ/Z 9094.15-1987 Methods of measurement for equipment used in terrestrial radio-relay systems--Part 3: Simulated systems--Section 6: Measurements for sound-programme transmission.