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Greatjammer posted a new blog:

The FCC has just issued a special temporary authorization (PDF) to allow the DC Correction Department to test gsm jammer technology. This technology sounds like an excellent solution to a serious problem: prisoners across the country illegally use mobile phones in correctional facilities. In particu…

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Greatjammer posted a new blog:

A cell phone jammer is an electronic device that blocks the transmission of signals between a cell phone and a base station. By using the same frequency as the mobile phone, the mobile phone's jammer will cause strong interference to the communication between the caller and the receiver. It eff…

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Greatjammer posted a new blog:

If you want to start navigating in the house, there may be a connection problem. Thick building walls can interfere with the signal. A phone case made of the wrong material can also cause connection problems. Remove the lid and try again. Of course, the signal may also be disturbed due to the reflec…

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Greatjammer posted a new blog:

Although there is evidence that Russia is conducting deceptive attacks (perhaps to prevent aerial surveillance via drones), the real reason for the GPS shutdown is still unknown."We don't know where all these cell phone jammer come from, or the motivation behind them," Piled said. &qu…

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Greatjammer posted a new blog:

The wifi jammer will send a predefined white noise signal within a specific bandwidth, thereby interrupting all wifi/Bluetooth communications. Our interference unit can be programmed to interfere with any number of discrete frequencies within its RF function range. For the basic wifi interference sy…

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Greatjammer posted a new blog:

In addition to being able to build old-fashioned phones, today's phones can also perform text messaging, photography, recording, and real-time transmission of audio and video. In short, they provide a variety of ways to record and transmit information. In addition, if you try to prevent their i…

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Greatjammer posted a new blog:

A Bluetooth wifi jammer is a portable jammer, the same as a car jammer, which means you can take it with you anywhere. The battery can last for half an hour. If you have important things to do, you can carry it in your bag. Small size and light weight. Therefore, it is very practical and nobody noti…

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Greatjammer posted a new blog:

These MiFi devices are very popular because they can be used to share Internet connections with other people. You can connect the Verizon MiFi 4620LE hotspot to your phone and connect to 4G or 3G networks. If you share 4G internet, the MiFi 4620LE hotspot can support up to 10 users. If it is 3G, you…

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