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  • Advanced jammers can block multiple types of networks at the same time

    Some simpler devices can only block one set of frequencies, while advanced cell phone jammer can block multiple types of networks at the same time, cutting off the signal of dual-mode or triple-mode mobile phones, making it impossible to switch between different networks and find open signals. So...
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  • What is the use of cell phone signal shielding?

    Signal jammer is mainly aimed at various examination rooms, schools, gas stations, churches, courts, libraries, conference centers, theaters, hospitals, governments, finance, prisons, military places and other places where the use of mobile phones is prohibited. It is understood that cell phone s...
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  • What is the shielding range of the mobile phone signal amplifier?

    Mobile phone signal jammers are divided into the following situations according to the shielding range and the port data used: The first type: within a small range of 0-10 meters, with an area within 120 square meters. Low-power mobile phone signal jammer. The shielding effect is different accord...
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  • 5G jammers will soon replace 4G signal blockers

    Although most markets still use 4G networks, 5G is the mainstream signal in the future and will soon occupy the market. With the greatly improved transmission speed, whether in life or work, the utilization rate of 5G has greatly increased. HiSea has always put the development of 5G jammers in a ...
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  • Why can wireless cell phone signal jammer interfere with your cell phone signal?

    Many users who use mobile phone wifi jammer do not understand its working principle, and often exceed the frequency range when using it, resulting in poor use. The working principle of mobile communication is that within a certain frequency range, wireless devices (mobile phones, etc.) communicat...
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  • Cell phone jammers disrupt communications in prisons

    We want to confirm once again that these aforementioned mobile cell phone jammer devices have no effect on mobile phones. It will not prevent the signal transmission between the mobile phone and the base station. In addition, please make sure that it is fully charged before use, and do not use mo...
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  • Jammers intercept control signals with high-performance radio signals

    As of March 2017, US$3 million worth of US Allied Patriot missiles had launched US$200 drones from Amazon. However, to buy an unmanned aircraft, it does cost $3.4 million. Are there other anti-drones solutions? The Russian army established a ground force to specifically attack enemy drones. This ...
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  • Benefits of High Power Signal Jammer

    If you are looking for a powerful device to be used for jamming the cell phone or mobile phone signals in the place like the exam rooms, churches, temples, gas stations or any other places you need to be quiet or where the mobile phone is prohibited. Please directly feel free to contact us. One o...
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  • Why not to try the High Power Cell Phone WIFI Signal Jammer?

    Nowadays, some discussions about the children’s education and management have raised the whole social concern. It seems not only about children’s personal development, but also about the whole country’s future. With the fast development of the high tech, more and more students pretend to own the ...
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  • How Likely Are Burglars To Use A Wifi Jammer?

    How Likely Are Burglars To Use A Wifi Jammer?

    While jammers are suspected in recent break in just outside of Philadelphia, the likelihood that a criminal gains access to your home using a jammer is highly unlikely. Burglaries are rarely premeditated or carefully orchestrated. Rather, they’re typically random and opportunistic crimes. Several...
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  • How Can Jammers Be Used To Disable or Block Your Wireless Home Security System?

    Can residential wireless alarms be jammed? Wireless home security systems transmit RF signals between sensors placed around the perimeter of your home to send an alert to an alarm company when suspicious activity occurs. If a potential burglar can determine the type of security system you own and...
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  • Types of Jammers

    Mobile: Mobile jammers transmit signals on the same frequency as cell-phones, which blocks cellular service and prevents the mobile device from making calls or sending text messages. If a mobile jammer is operating, your cell phone won’t display a network signal. WiFi: WiFi jammers will cre...
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