CE: 测试30230MHZ30dbuV/m,2301000MHZ,37DBuV/m,等级为class B10米半电波测试场地 测试1G以上为: transmit mode:-30DBMstandby mode:-47DBM FCC:PART15里面用场强限值可以算出来的,3米与10场地的限值是可以相互转化的。倍频:Averager limit:54dBuV, Peak limit: 74dBuV主频:Averager limit:74dBuV, Peak ...
Limitsforradiateddisturbance 辐射骚扰的测量环境 •Ambientnoise环境噪声（一）测试场地应将EUT的辐射骚扰与环境噪声区分开来。这方面可以通过无EUT工作时测量环境噪声的电平决定。要求：场地的环境噪声至少要低于LIMITLINE６db。Ambientnoise环境噪声（二）•在ambientnoise和骚扰源的骚扰不超过规定的 limit时，ambientnoise...
NOTE: CLASS B ITE主要为家庭环境的使用而设计. CLASS A ITE -非B类的ITE产品。 辐射骚扰的测量环境 Ambient noise环境噪声(一) 测试场地应将EUT的辐射骚扰与环境噪声 区分开来。这方面可以通过无EUT工作时 测量环境噪声的电平决定。 要求:场地的环境噪声至少要低于LIMIT LINE6db。 Ambient noise环境噪声(二) ...
Quasi-peak limits dB(μV/m) 40 47 The lower limit shall apply at the transition frequency. Additional provisions may be required for cases where interference Table 6 – Limits for radiated disturbance of class B ITE at a measuring distance of 10 m Frequency range MHz 30 to 230 230 to 1...
Figure 1. FCC radiated limits (USA) and EN55022 class B radiated limit (European Union).The problem is that the power budgets of ITE products are increasing with performance improvements, so meeting EMI standards becomes proportionally more difficult (see sidebar). Enter the LTM4613 8A μModule...