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　　GPS jammer or GPS cell phone jammer is a device used to interfere or completely block the signals of the Global Positioning System (GPS) in the United States.South Ministry of Defence.
　　Fearful of eavesdropping or secretly recording, Holger B wanted to protect himself and bought a jammer.Because the transmitting power of GPS satellites orbiting more than 20,000 kilometers above the earth's surface is relatively low.Thanks to the jammer, the security and rescue required has now become a reality.Jamming a GPS signal requires very little jamming energy to temporarily or completely block the GPS signal.

　　August 28, 2004, the United States - McGregor said: During the Iraq War, the Iraqis destroyed GPS navigation data, making it impossible for American cruise missiles, bombers, etc. to locate bombing targets.
　　GPS is a strategic tool. It was later confirmed that the Iraqis had used GPS jammers during the dust storm. Americans rely heavily on airborne GPS and radar surveillance systems, and sadly, all GPS navigation bombs fall off their targets.

　　The GPS satellite positioning system is the most commonly used satellite positioning system in the world. Its predecessor is a "Meridian" navigation satellite system developed by the US military. Space satellite navigation GPS positioning system. After more than 20 years of research and experiments, costing 30 billion US dollars, by March 1994, the constellation of 24 GPS satellites with a global coverage rate of 98% had been completed.
　　The main functions that the GPS satellite positioning system can achieve in civilian use are:

　　GPS and other Global Navigation Satellite Systems (GNSS) circle the earth in medium earth orbit, which is around 12,550 miles above the ground – the equivalent of almost five trips from San Francisco to New York. Since those satellite signals are transmitted across such a great distance, they are pretty weak by the time they actually reach your device.
　　In a GPS spoofing attack, a terrestrial radio transmitter mimics GPS signals at a greater signal strength than the actual system can muster, effectively replacing real GPS signals with a fake signal. This used to be complicated, expensive electronics that only militaries could do. Today, it’s almost ridiculously easy to gain access to such a transmitter. A GPS jammers is available on the internet for around USD 100.

　　We all know that our wi-fi enabled devices can occasionally just lose a signal. Chances are, that’s a result of an unintentional interruption in communication. It doesn’t necessarily mean that someone’s lurking nearby, purposely disrupting the device and causing you to lose your signal.
　　However, when a cell phone jammer is being used, it can block any device within a certain range from connecting and communicating. Whatever device is using the same frequency, the jammer can prevent any incoming or outgoing communication.

　　In the modern age, most of us rely on technology for work, leisure, and convenience. This means most of our lives exist in an online space as we leave traceable footprints passing through. Anytime we use a map feature to get anywhere or log onto public wifi, we are instantly susceptible to data farming, tracking, and more.
　　Here at Jammer Perfect, we offer a wide range of products to protect yourself in a technological age. With a multitude of professionally crafted GPS jammers for sale, we have devices to cover your needs.

　　Once you’ve bought the WiFi jammer and ensure your router is functioning on the correct channel, you can set up your WiFi jammer. How you need to set up your wifi blocker will depend on the model you’ve chosen.
　　Some basic WiFi blockers can fit in your pocket and run on a battery. These jammers are great for keeping your jamming abilities portable and functioning wherever you go. This is especially beneficial if you plan on using your jammer in other places, such as at work or in a hotel.