When evaluating the performance of a UAV signal jammer used to counter UAVs, a key factor that is most often concerned is what kinds of UAV signals the device can jam. How many jamming modules are used by the man-machine signal jammer, then, in practical applications, how many jamming modules are it reasonable to configure?

Anyone who is familiar with drones will know that the communication transmission of a drone can be basically divided into three types: the first type is the navigation and positioning signal of the drone, which is commonly known as GPS; the second type is the drone When the drone operator controls the flight attitude of the drone through the remote controller in his hand, the flight control signal is transmitted between the remote controller and the drone; the third type is the image transmission signal, which is unmanned The built-in camera of the machine transmits the image (audio/video) to the operator's remote control or other receiving platform, sometimes referred to as "image transmission signal".

The above three signal types are all UAV signal jammers that must be considered for jamming countermeasures. The GPS frequency bands for navigation and positioning are further divided into GPS L1 frequency bands and GPS L2 frequency bands according to specific needs. The most commonly used of these is the GPS L1 band. When the drone signal jammer interferes with the flight control signal and the image transmission signal, the flight control signal and the image transmission signal used by some drones are often used in the same frequency band, and the most commonly used frequency bands are 2400MHz and 5800MHz. , in this way, it can be concluded that the most simplified and most basic configuration of a UAV signal jammer must include at least three jamming modules, and the frequency bands of these three jamming modules correspond to: GPS L1 (1500MHz) , 2400MHz and 5800MHz.