IEC 62037-1:20 21作为IEC 62037-1:20 21 RLV提供，其中包含国际标准及其红线版本，显示了与上一版本相比技术内容的所有变化。IEC 62037-1:20 21涉及无源射频和微波元件互调（IM）电平测量的一般要求和测量方法，这种互调可能是由两个或多个发射信号的存在引起的。本文档中给出的测试程序给出了使用两个发射信号表征不需要的IM信号电平所需的一般要求和测量方法。IEC 62037系列涉及PIM的测量，但不涵盖产品性能的长期可靠性。第二版取消并取代了2012年出版的第一版。与上一版相比，此版本包括以下重大技术变更: a.增加了测试设备可以利用脉冲发生器来降低功耗的说明； b.对于使用脉冲发生器进行的试验，附件B中记录的受试器械的热效应差异； c.附录B中增加了指南，以提高动态测试时检测短期PIM事件的概率。

IEC 62037-1:2021 is available as IEC 62037-1:2021 RLV which contains the International Standard and its Redline version, showing all changes of the technical content compared to the previous edition.

IEC 62037-1:2021 deals with the general requirements and measuring methods for intermodulation (IM) level measurement of passive RF and microwave components, which can be caused by the presence of two or more transmitting signals. The test procedures given in this document give the general requirements and measurement methods required to characterize the level of unwanted IM signals using two transmitting signals. The IEC 62037 series addresses the measurement of PIM, but does not cover the long-term reliability of a product with reference to its performance. This second edition cancels and replaces the first edition published in 2012. This edition includes the following significant technical changes with respect to the previous edition:
a. clarification added that test equipment may utilize pulsed generators to reduce power consumption;
b. heating effect differences in the device under test noted in Annex B for tests conducted using pulsed generators;
c. guidance added in Annex B to improve probability of detection of short duration PIM events while dynamic testing.