1.范围1。1总的来说，本标准规定了无线电和电视广播接收机及某些相关设备的抗扰度限值和测量方法，以防止电磁干扰导致性能下降。1.2适用性本标准适用于两类设备的抗扰度，其性能不会因电磁干扰引起的电压和电流而降低，这些电压和电流在设备内部或与设备相关的外部连接电缆中产生；前提是设备在电源电压下运行，以及在其他方面按照制造商规定的方式运行。这两类设备是（a）所有设计用于接收广播电视或无线电信号的设备，以及设计用于此类广播接收器并与之连接的设备，包括但不限于录像机、有线电视转换器、磁带和录音机以及音频处理设备； （b） 用于复制或放大磁带或唱片中的音频信号的设备，以及不用于连接广播接收设备的类似设备。本标准不适用于连接到公共交换电话网的接口设备。无线电接收机的内部抗扰度不在本标准的范围内，除非其测量不能与外部抗扰度的测量隔离。（见附录A）1.3频率范围本标准适用于频率范围为0.15至1000 MHz的电磁干扰。

1. Scope1.1General This Standard establishes limits and methods of measurement of the immunity of radio and television broadcasting receivers and certain associated equipment to degradation of performance due to electromagnetic disturbances.1.2Applicability This Standard is applicable to immunity of two classes of equipment from degradation of performance resulting from voltages and currents which are caused by electromagnetic disturbances, and which are induced within the equipment or in the external connecting cables associated with it; provided that the equipment is operated at the supply voltage, and in other respects in the manner specified by the manufacturer.The two classes of equipment are(a) all equipment designed for the reception of broadcast television or radio signals, and equipment designed for use with, and connection to, such broadcasting receivers, including but not limited to, video recorders, cable television converters, tape and record players and audio processing devices;(b) equipment designed for the reproduction or amplification of audio signals from tapes or records and similar devices not intended for connection to broadcasting receiving apparatus. This standard does not apply to interface equipment attached to the public switched telephone network.INTERNAL IMMUNITY OF RADIO RECEIVERS IS NOT WITHIN THE SCOPE OF THIS STANDARD EXCEPT IN THOSE CASES WHERE ITS MEASUREMENT CANNOT BE ISOLATED FROM THE MEASUREMENT OF EXTERNAL IMMUNITY. (See Appendix A.)1.3Frequency Range This Standard applies to electromagnetic disturbances having components in the frequency range from 0.15 to 1000 MHz.