How to interfere with GPS system?

GPS jamming, like ordinary electronic jamming, can be divided into suppression and deception.

Suppress interference:

There are narrowband interference (aiming type) and broadband interference (blocking type), and the interference action time has continuous interference and pulse interference. The advantage of suppressed jamming is that the technical difficulty is small, but the required jamming power is large.

deception jamming

It is to transmit jamming signals similar to GPS signals, misleading GPS receivers to deviate from accurate navigation and positioning. The advantages of this jamming are obvious, the required jamming power is small, and the jamming effect is much better than that of suppressing jamming. Of course, the technical difficulty of deceptive interference is far greater than that of repressive interference. Because if you want to cheat, you need to know the code type of GPS satellite and the message data sent at that time, and it is quite difficult to understand and master these.