How do jammers protect personal information?
With a jammer you can protect information from being leaked

The U.S. military hopes that GPS jammers installed on drones will dominate the future of electronic warfare and move to a less well-understood and poorly regulated procurement approach. GPS signal jammers can distinguish hostile drones. If the threat is determined to be hostile, it is classified as a real threat and then intercepted during the "action" phase. Drone jammers can be deployed in the shortest possible time and take immediate action. These signal interceptors work only in safe areas and can completely disable all drone flights from 1 to 2000 meters.

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More and more people are using signal jammer to protect their privacy, and many countries use 5g jammers or cell phone signals to block devices. Before you use these things, it is even better if you understand how they work, that is, jammers block signals such as frequency bands and distances. However, you must keep in mind that our principle of using interfering devices is to try to protect their privacy and not to infringe on the privacy of others, thus making yourself a legitimate citizen. The following points should be noted.

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In recent years, the drone market has developed rapidly. With the large-scale development and production of DJI, Grain, Zero Degree Control and other manufacturers, the price of commercial drones is getting lower and lower, and the experience is getting better and better. Gradually enter people's lives. Factory direct drone signal shielding device, portable drone jammers / all current jammer, GPS jammer interferes with satellite positioning, car location, mobile phone location, drone navigation, Google network positioning, etc. Using this product within the range of effectively separating GPS satellite signals can even reach a radius of several kilometers, effectively intercepting drone flight, and protecting our safety.

https://www.perfectjammer.com/drone-signal-jammers.html