Due to the increasingly widespread application of consumer grade rotary wing drones, many sensitive places that are not allowed to fly, such as prisons, airports, government agencies, high-level scientific research sites, border areas, military bases, etc., often have unknown hobbiesOr someone with ulterior motives is taking aerial photos.For drone flight in this scenario, signal scramblers are usually used to interfere with the drone's remote control signal for defense.
In addition, signal jammer are also used by the military police to respond to dangerous goods controlled by remote signals such as remote controlled bombs from terrorists.However, it must be mentioned that when customers purchase and use signal shields, it is recommended to test the remote control signal interference effect of the remote control in advance, and the following precautions should be taken during testing:The signal blocker is connected correctly and tested after being powered on normally.A certain distance needs to be maintained between the remote control and the remote controlled object.
If the distance between the remote control and the remote object is too close, for example, the distance between the two is one or two meters.Or within a few meters, which is unrealistic in practical applications, and the distance is too close to require a remote control.Therefore, when testing the true interference effect of signal scramblers, it is necessary to maintain a distance of more than ten meters or more between the two in order to better match the actual combat situation.The remote control is a point frequency transmitter.
Although dot frequency has low power, its bandwidth is narrow.Therefore, at close distances, it may have stronger anti-interference performance.The interference effect of signal scrambler is very obvious.The farther the distance between the two, the more obvious the interference effect of the signal shield.The working frequency bands of the remote control include 27MHz, 135MHz, 433MHz, and more.In practical use, please ensure that the antennas of all low-frequency modules on the signal shield are reliably connected and that all boots work properly.
