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Cell Phone Jammer Diy Schematic

Roth Richard 2021-08-19

Signal jammer devices transmit at the same radio frequency as mobile phones. It interrupts the communication between the mobile phone and the base station in the tower. Interference is also called a denial of service attack because it refuses to provide radio signals to users in the area covered by the interfering device. Currently, there are different types of Cell Phone Jammer Diy Schematic on the market. Some devices can only block one frequency, while others can block multiple types of networks at the same time. The latter can automatically switch from different networks to find open signals. High-end devices can shield all frequencies at the same time, while other devices can be tuned to specific frequencies. Simply put, they emit random static electricity or noise at various frequencies, and devices that are powerful enough to be close to them cannot connect to the connections they should. It's a bit like opening the hood next to the engine of a sports car and trying to talk to someone on the phone. The local noise becomes too strong, signal jammer The device cannot connect normally. By quickly covering a range of frequencies, they can effectively prevent the normal operation of the device.

At present, there are many suppliers of test center Cell Phone Jammer Diy Schematic , and the products are also diverse. It is recommended that schools focus on the following points: Product shielding effect: This is of course the most important. If the quality of the product is not good, normal shielding requirements cannot be guaranteed, and everything is exempt. Since there are many signal base stations in the city, the signal strength of each school is different. The shielding effect is best to be tested on the spot. Service Guarantee Commitment: If the product fails, can it be repaired and replaced in time? Is it a one-year warranty or a two-year warranty or a three-year warranty? Price competitiveness: Good quality and low price is the goal of all consumers. Whether the price of the product is competitive, what is the budget of the school, and the supplier’s quotation need to be considered comprehensively. In short, you must choose the Cell Phone Jammer Diy Schematic product with the highest cost performance. Therefore, it is more and more common to place signal jammers in classrooms and dormitory areas. Of course, during important exams, especially college entrance examinations, signal jammers must also be placed in the exam room, even metal security gates and hand-held metal detectors are also common. How to choose signal jammers for universities and middle schools?