无线信道为啥要用载频文天香无线电波又叫电磁波，它是指形成波动而被辐射的电磁场。电场或磁场一般都被带电体或载流导体所国钢，要把电场或磁场形成电磁波动，即形成波以后再辐射出去这不是件容易的事，而是有其物理条件和技术条件的。一般来说，在低频范围内的低频波如... Wireless channel Why use carrier frequency Sky incense radio wave, also known as electromagnetic waves, it refers to the formation of fluctuations in the electromagnetic field is radiated. Electric field or magnetic field are generally charged body or current carrying steel, electric field or magnetic field to form electromagnetic fluctuations, that is, the formation of waves and then radiated out of this is not an easy task, but has its physical and technical conditions. In general, low-frequency waves in the low frequency range such as ...