国防大学李大光指出：小手机身存大隐患，提醒人们警惕手机成为你身上的窃听器。从手机的通信原理——手机的通信过程来看，用手机时先把语言信号传输到移动通信网络中，再由移动通信网络将语言信号变成电磁频谱，通过通信卫星辐射传送到受话人的电信网络中，受话人的通信设备 National Defense University Li Daguang pointed out: a small hidden danger of small cell phones, to remind people to be wary of the phone as your body bug. From the phone’s communication principle - the phone’s communication process, the first mobile phone when the language signal is transmitted to the mobile communication network, and then the mobile communication network will be the language into the electromagnetic spectrum, radiation transmitted through the communication satellite to the recipient Telecommunications network, the recipient’s communication equipment