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In recent years, prisons, labor camps, and detention centers across the country have invested funds to build or rebuild cell phone jammer systems. It is hoped that illegal use of mobile phones will be eliminated, mobile phone management in supervision sites will be strengthened, and supervision work will be carried out smoothly.
As we all know, a good signal jammer needs to cover many aspects, not only the product has higher performance and better quality assurance, but it also has an affordable price, after all, there are many choices. Today’s market, but customers often want to choose the one that best suits their needs. This is also to achieve the most cost-effective consideration.
The cell phone jammer emits interference signals like the frequency that the mobile phone takes over. It just hinders the connection between the mobile phone and the base station so that the mobile phone is always in a state of no signal search, and it will never cause harm to the mobile phone!
Whether the test room signal jammer is effective depends on the environment around the test room and whether the quality of the test room signal jammer purchased is good. The test room environment is mainly to see if there are any base stations nearby. If there is a base station, it needs to be equipped with a little more shielding device.
It is understood that GSM jammer on the market can limit cell phone signals to 500 meters away from the launching station. The shielding radius is adjustable, and the coverage area reaches more than 30 square meters. The mobile phone signal shielding device can only shield the mobile phone signal and does not affect other electronic equipment.
Another important factor is obstacles. If it is a metal material, it will be directly blocked; if it is a solid reinforced concrete wall, it will be attenuated by at least 10 times after penetration.
Once leaks are dangerous, a professional camera portable jammer that interferes with the video signal is needed. This way we will feel more at ease when we stay in a hotel.
As a professional signal jammer sales store, according to our data feedback and summary this year, the most popular cell phone jammer device in 2020 is the 8-antenna handheld mobile phone jammer.
Nowadays, many students play mobile games during class, disturbing the order of the classroom and affecting learning. Can we use and install signal jammers in schools?
Now more and more qualification tests are starting to block cell phone signals. They are now used even in high school exams. So, can the device effectively prevent cheating?
Can schools now disable cell phone signals at will? My school has started to install a device called a signal jammer. Does the school have the right to do so?
Recently, the school has installed a lot of signal jammer equipment, which is mainly for prohibiting students from using mobile phones, and at the same time can prevent candidates from cheating.
The arrival of 5G has brought us a lot of changes. Our school used to buy a lot of 4G jammers. Can these jammers prevent 5G mobile phone exam cheating?
In Italy, how to avoid this by sending text messages or taking test photos to cheat on college students?
Hello everyone, there is a lot of news about the use of WiFi jammers on the Internet, just in case how to stop these devices from working.
