When it receives the right radio signal, from, say, a mobile-phone network, aircraft or satellite, the device may blow up, shut down, or work differently.
当它从手机网络、飞机或卫星接收到恰当信号时就会爆炸、关闭或是改变运作方式。
2
Pixelation occurs when the digital signal bounces off buildings, hillsides, trees or even passing aircraft.
数字信号在建筑物、山坡、树木或者甚至掠过飞机时，会发生发射，这时会出现像素问题。
3
Reaching the designated area around midnight, the aircraft received the proper recognition signal from the ground.[7]