本程序规定了有源电缆通信设备噪声系数的测量方法。它用于测量具有“F”型或5/8-24 KS连接器的75欧姆设备，以及测量与窄带干扰相反的真实宽带噪声。 测试设备特性将该程序的频率限制在不低于10 MHz的范围内。有关低于10 MHz的评估的进一步讨论，请参见附录3-低频测量。

This procedure defines a method of measurement for Noise Figure of active Cable Telecommunications equipment. It is intended for measurement of 75-ohm devices having type "F" or 5/8-24 KS connectors, and for the measurement of true broadband noise as opposed to narrowband disturbances. Test equipment characteristics limit this procedure to frequencies no lower than 10 MHz. See Appendix 3 - Low-Frequency Measurements for a further discussion of evaluation below 10 MHz.