All About Cell Phone Jammer
Cell phone jammer are devices that are designed to block or disrupt mobile phone signals within a certain area. They emit radio signals that interfere with the communication between a mobile phone and its base station, effectively rendering the phone useless.
Types of Phone Jamming Device
There are several types of cell phone jammers, including passive jammers, active jammers, and hybrid jammers.
Passive Jammers: Passive jammers work by reflecting the mobile phone signal back to the phone, creating interference and disrupting communication. They are typically less effective than active jammers, but are also less expensive.
Active Jammers: Active jammers emit a strong radio signal that overpowers the mobile phone signal, effectively blocking communication between the phone and its base station. They are more effective than passive jammers, but are also more expensive.
Hybrid Jammers: Hybrid jammers combine the features of both passive and active jammers, creating a more effective and versatile device.
Uses of Device to Block Cell Phone Signal
Phone signal blocker are typically used in places where mobile phone use is prohibited or undesirable, such as movie theaters, concert halls, and other public areas. They are also used in prisons and other correctional facilities to prevent inmates from using mobile phones to coordinate criminal activity. In addition, cell phone signal jammers can be used by law enforcement agencies to disrupt communication during hostage situations or other emergencies.
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World First 24 Antennas all-in-one design wireless signal Jammer with nylon cover for portable, jamming all types of Android phones, Tablets, Smart Phones, iPhones, Win phones etc. that use 2G, 3G, 4G 5G, and CDMA 450Mhz, Block GPS, Wi-Fi 5G, Walkie-Talkie UHF/VHF and RF...
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6 antenna portable cell phone jammer Adopt brand-new material, in the point, line, face design reached the best state, perfect modelling makes it very popular. With GSM + 3G as the basic interference signal frequency, shielding 4G, GPS and WiFi signal frequency depending on...
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The latest hidden antenna handheld cell phone jammer design 16 bands all-in-one frequencies blocking all mobile phone signals, LOJACK GPS, Wi-Fi, RF signals, Jamming range 2 to 20 meters (depends on signal strength in given area). Other Parameters: Band 1 : VHF&LOJACK (135-175MHz) Band...
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product features Large-scale coverage of 100-200 square meters (-75dBm, indoor transparent environment, depending on the distance of surrounding base stations) High-power 30W (single-channel 3-5W) effectively shields 3 networks 2G 3G 4G 5G mobile phone signal and WIFI signal Equipped with precision voltage stabilizing circuit, it...
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As one high-power drone interception system,It mainly aims at enforcing the control of drones or models in flight. The interference range is up to 1000-2000m, and all GNSS satellite positioning signals such as GPS/ beidou/glonas/Galileo can be interfered and shielded. Meanwhile, the commonly used...
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Suitable as a mobile phone information security bag, with the function of "mobile phone rest bag". For example, when you place your mobile phone inside the information security bag, it will be in a strictly protected state, while the phone itself will "sleep" and...
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