GB/T 4958.13-1988
Methods of measurement for equipment used in terrestrial radio-relay systems--Part 3:Simulated systems--Section Five Measurement of mutual interference (English Version)
- Standard No.
- GB/T 4958.13-1988
- Language
- Chinese, Available in English version
- Release Date
- 1988
- Published By
- General Administration of Quality Supervision, Inspection and Quarantine of the People‘s Republic of China
- Status
- 2017-12
- Latest
- GB/T 4958.13-1988
- Replace
- SJ/Z 9094.14-1987
- Scope
- This standard applies to interference measurements in simulated radio relay systems for transmitting television and frequency division multiplexing telephones. Interference can come from various signals within the same mixed baseband on one RF channel itself, or from other RF channels. In order to make the most appropriate evaluation of the noise that may occur in the radio relay system in the operating state, according to GB4958·10-88 "Measurement methods for equipment used in ground radio relay systems Part III: Measurement of simulation systems Section 3 Black and white and color TV Measurement of Transmission" and GB4958·11-88 "Measurement Method of Equipment Used in Ground Radio Relay System Part III: Measurement of Simulation System Section 4 Measurement of Frequency Division Multiplexing Transmission", when measuring the simulation radio relay system, need Consider interference from other signals. To determine the noise rise due to interference, measurements are usually made with and without the interferer present.
GB/T 4958.13-1988 history
- 1988 GB/T 4958.13-1988 Methods of measurement for equipment used in terrestrial radio-relay systems--Part 3:Simulated systems--Section Five Measurement of mutual interference
GB/T 4958.13-1988 Methods of measurement for equipment used in terrestrial radio-relay systems--Part 3:Simulated systems--Section Five Measurement of mutual interference has been changed from SJ/Z 9094.14-1987 Methods of measurement for equipment used in terrestrial radio-relay systems--Part 3: Simulated systems--Section 5: Measurement of mutual interference.
GB/T 4958.13-1988 -All Parts
GB/T 4958.1-1985 Methods of measurement for equipment used in terrestrial radio-relay systems--Part 1: Measurement common to subsystems and simulated systems--Section One--General
GB/T 4958.10-1988 Methods of measurement for equipment used in terrestrial radio-relay systems--Part 3:Simulated systems--Section One General
GB/T 4958.11-1988 Methods of measurement for equipment used in terestrial radio-relay systems--Part 3:Simulated systems--Section Three Measurements for monochrome and colour television transmission
GB/T 4958.12-1988 Methods of measurement for equipment used in terrestrial radio-relay systems--Part 3:Simulated systems--Section Four Measurements for f.d.m. transmission
GB/T 4958.13-1988 Methods of measurement for equipment used in terrestrial radio-relay systems--Part 3:Simulated systems--Section Five Measurement of mutual interference
GB/T 4958.14-1992 Methods of measurement for equipment used in terrestrial radio-relay systems.Part1:Measurements common to sub-systems and simulated radio-relay systems--Section two.Measurements in the radio-frequency range
GB/T 4958.15-1992 Methods of measurement for equipment used in terrestrial radio-relay systems.Part1:Measurements common to sub-systems and simulated radio-relay systems.Section 4.Measurements in the baseband
GB/T 4958.16-1992 Methods of measurement for equipment used in terrestrial radio-relay systems.Part2:Measurements for sub-systems.Section3： R.F.branching networks
GB/T 4958.17-1992 Methods of measurement for equipment used in terrestrial radio-relay systems.Part2:Measurements for sub-systems.Section6： Diversity twin-path and hot stand by equipment
GB/T 4958.2-1988 Methods of measurement for equipment used in terrestrial radio-relay systems--Part 3: Simulated systems--Section Two Measurements in the basehand
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
GB/T 4958.4-1988 Methods of measurement for equipment used in terrestrial radio-relay systems--Part 2:Measurements for sub-systems--Section One--General
GB/T 4958.5-1988 Methods of measurement for equipment used in terrestrial radio-relay systems--Part 2:Measurements for sub-systems--Section Four--Frequency modulators
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
GB/T 4958.7-1988 Methods of measurement for equipment used in terrestrial radio-relay systems--Part 2:Measurements for sub-systems--Section Seven Radio transmitters
GB/T 4958.8-1988 Methods of measurement for equipment used in terrestrial radio-relay systems--Part 2:Measurements for sub-systems--Section Eight Radio receivers
GB/T 4958.9-1988 Methods of measurement for equipment used in terrestrial radio-relay systems--Part 2: Mesurements for sub-systems--Section Nine Stand-by channel switching equipment