Re: 请问:射频是什么意思?是和什么相区别的呢# EE - 电子工程
k*t
1 楼
extending from 9KHz to 3000GHz (wavelength 0.1mm~33km),
RF refers to frquencies with which an electromagnetic
field is generated suitable for wireless braodcasting
and communication.
AF(audio freq.) covers from 20Hz~20KHz however.
RF refers to frquencies with which an electromagnetic
field is generated suitable for wireless braodcasting
and communication.
AF(audio freq.) covers from 20Hz~20KHz however.