Radio wave mobile phone signal interference Broadcast radio frequency signals in the mobile phone frequency band, causing the mobile phone screen to display “network unavailable”. All calls within the effective radius of the radio wave are muted. The microcontroller can be used to program the activation and deactivation cycles. A device used to prevent mobile phone jammers from sending and receiving signals from mobile phone base stations. The working principle of GPS mobile phone signal jammer is radio frequency (RF). It has interference technology, parts, microcontroller and GSM unit. The army and the army were the first to use radio waves. This interest stems from the main goal of preventing the successful transmission of information from the sender (tactical commander) to the receiver.
GPS signals are the same as cell phone signals and are easily interfered by electronic devices. gps jammer can shield all signals within a certain range, causing all communication devices in the range to lose their signals. Installing a GPS locator on the car allows car owners to easily find their car on the GPS monitoring platform. However, such a good thing has also been found flaws by criminals. As long as you buy a GPS jammer on a certain treasure, you are stealing the car. When you turn it on, there is no signal on the car, and the car is offline on the platform, as if it is missing, no matter what you can find. Deep sleep GPS, this type of GPS has the function of automatically turning on and off. When it does not send a signal, it will shut down by itself, and no tool can detect its information. This is also a deep hidden GPS. This type of GPS is generally difficult to find. You can find a professional GPS locator testing company to test.