本人在一个玩具厂工作,刚刚接手做玩具(大多是遥控型的)的EMC测试。
(主要参考标准是ETSI EN 300 220-3 V1.1.1(2000-09)
ETSI EN 300 220-1 V1.1.1(2000-09))
由于本人只有高中物理水平,很多东西不懂,还望高手指教。
1.Carrier Power(载波功率)和有效辐射功率(ERP)有啥区别?
好像是两者只测其一吧?
标准上说:
Carrier Power - This method applies only to equipment with a permanent external antenna connector.For equipment with an external
antenna connector and supplied with a dedicated antenna, clause 8.3 applies.(ERP)
这小段话该怎么翻译?永久外部天线连接器?
前者针对未调制的载波信号,后者针对调制过的信号?
2.Frequency error是翻译作“频率偏差”吗?
关于它的定义标准中有说:
The frequency error of the transmitter is the difference between the measured unmodulated carrier frequency and the nominal frequency as stated by the manufacturer under normal and extreme conditions.