Reference:
§ 15.407   General technical requirements.
(b) (4) For transmitters operating in the 5.725-5.85 GHz band:
(i) All emissions shall be limited to a level of -27 dBm/MHz at 75 MHz or moreabove or below the band edge increasing linearly to 10 dBm/MHz at 25 MHz above or below the band edge, and from 25 MHz above or below the band edge increasing linearly to a level of 15.6 dBm/MHz at 5 MHz above or below the band edge, and from 5 MHz above or below the band edge increasing linearly to a level of 27 dBm/MHz at the band edge.
(ii) Devices certified before March 2, 2017 with antenna gain greater than 10 dBi may demonstrate compliance with the emission limits in Section 15.247(d), but manufacturing, marketing and importing of devices certified under this alternative must cease by March 2, 2018.  Devices certified before March 2, 2018 with antenna gain of 10 dBi or less may demonstrate compliance with the emission limits in Section 15.247(d), but manufacturing, marketing and importing of devices certified under this alternative must cease before March 2, 2020.

重点:
FCC 16-24主要修订内容为针对U-NII-3 (5.725~5.85 GHz) 频带之out-of-band emission的限制值放宽。
U-NII-3之OOBE有下列两种选项来选择测试符合法规要求 :
1.使用FCC 15.407(b)(4)(i) 的限制值
2.使用FCC 15.407(b)(4)(ii)的限制值-同15.247(d) 的要求
对於U-NII-3之OOBE测试，若采用FCC 15.407(b)(4)(ii)为限制值-同15.247(d)的要求，请务必注意认证申请与市场销售的过渡时期(请参考下列表格,转换期的截止日).

Cerpass 认证集团, 能在此议题上协助客户方案如下:
1. 目前Cerpass是采用FCC 15.407(b)(4)的限制值进行测试验证,预计May 6, 2016之後就会改采用FCC 15.407(b)(4)(i)放宽对於U-NII-3 (5.725-5.85 GHz)带外频段辐射限制值进行测试.
2. 对於目前公司采用FCC 15.407(b)(4)的测试方式,相较於新法规是属於严格的,所以对於新法规实施後,并不会有测试Fail的问题.
 
3. 请注意这FCC-16-24A1并没有延展定义於15.37(h) & KDB926956 D01 U NII Transition Plan 允许在旧法规认证下销售市场的时程(2016/06/02),只是修改与放松U-NII-3 (5.725-5.85 GHz)带外频段辐射限制值
4. 对於正在进行中的案件,请PM询问客户是否要使用FCC-16-24A1的方式测试带外频段辐射验证项目
5. 对於未来会开案的案件, ,请PM通知客户FCC-16-24A1相关变更说明
6. 如果客户在May 6, 2016之前已经取得认证,想要使用FCC 15.407(b)(4)(i)进行测试,那U-NII-3 (5.725-5.85 GHz)需要重新验证测试.