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[GY/T 82-1989] 中、短波广播场强测量方法[现行]
发布时间：1989-10-30
实施时间：1990-01-01
本标准适用于5265—1606千赫和2200—30000千赫的中、短波广播的场强测量，以供检测中、短..
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[GY/T 28-1984] 卫星广播图像质量要求[已废止]
发布时间：1985-01-01
实施时间：1985-01-01
本标准适用于我国卫星广播系统对电视图像接收系统的质量要求。利用通信卫星进行电视节目传送时，应满足国家..
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