本标准规定了在9 kHz至231 GHz频率范围内工作的未经许可的无线设备（也称为未经许可的发射器、有意发射的发射器和免许可证发射器）发出的射频（RF）信号和噪声测量的美国一致标准方法、仪器和测试设施要求。它不包括通用或特定产品的排放限值。它也不包括1.2中提到的无意散热器的无线电发射测量。在可能的情况下，本文中的规范与用于类似目的的其他国家和国际标准相协调。 如本标准1.2所述，提供了各种设备产生的辐射和传导发射的测量方法。对于文本中不代表明显或常见用法的术语和短语，提供了定义。在大多数情况下，应与本标准一起使用的测量仪器和校准要求，通常根据专门用于这些主题的标准进行描述，这些标准应与本标准一起使用。对于一般设备以及经常测量的特定类型的设备，给出了测量期间测试样品的操作要求。 排放试验数据记录和报告的具体要求参考标准实验室规程文件中包含的一般要求，这些要求应与本标准一起使用。主要

This standard specifies U.S. consensus standard methods and instrumentation and test facilities requirements for measurement of radio frequency (RF) signals and noise emitted from unlicensed wireless devices (also called unlicensed transmitters, intentional radiators, and license-exempt transmitters) operating in the frequency range 9 kHz to 231 GHz. It does not include generic or product specific emission limits. It also does not cover measurement of radio emissions from unintentional radiators, as mentioned in 1.2. Where possible, the specifications herein are harmonized with other national and international standards used for similar purposes. As described in 1.2 of this standard, measurement methods are provided for radiated and conducted emissions that can be generated by a variety of devices. For terms and phrases contained in the text that do not represent obvious or common usage, definitions are provided. In most cases, measurement instrumentation and calibration requirements, which should be used with this standard, are generally characterized in deference to standards dedicated to these subjects, which should be used in conjunction with this standard. Requirements for operation of test samples during measurements are presented for devices in general, as well as for specific types of devices that are frequently measured. Specific requirements for emission test data recording and reporting are presented with reference to general requirements contained in documents dedicated to standard laboratory practices, which should be used in conjunction with this standard. The main