Introduction to the working principle of mobile phone signal blocker
Nowadays, many people have a basic understanding of mobile phone signal blockers, which are also called mobile phone signal jammers. However, people are still not very clear about the working principle of mobile phone signal blockers. How does it work and how does it actively signal?
The working principle of cell phone signal blockers is actually very simple to understand. The shielding device sends a specific signal to wake up or interfere with the signal between the mobile phone and the base station, which causes the mobile phone and other communication devices to have no signal or cannot use the mobile phone to receive text messages. Even when the mobile phone receives text messages, it will display a chaotic code, so it cannot recognize text messages and chat messages.
In fact, mobile phone signal blockers usually do not affect base station and other device signals.
This is because the mobile phone signal blocker opened by the school is a device developed by the latest advanced technology at home and abroad. It only blocks mobile phone signals and does not affect other devices. If we regard the mobile phone as a handheld two-way radio, the interference of the radio is naturally no exception. Like any radio, the mobile phone signal will be directly interfered with. Its working principle is: within a certain frequency range, mobile phones and base stations are connected by radio waves and complete data and sound transmission at a certain baud rate and modulation method. In response to the above communication principles, the screen will scan the high-end frequency from the previous low-end to the high-end to carry out certain speed work processes. The mobile phone shows phenomena such as searching for the network, no signal and invalid labor system, which eventually leads to no signal on the mobile phone and no text messages or phone numbers can be received.
It is a good helper that can effectively prevent and prevent cheating-exam signal jammer. If you want to cheat with your mobile phone, it will not work at all, so the mobile signal jammer is the best shielding tool in the exam.
The main principle of signal shielding and signal jammer for sale is that the mobile phone uses the frequency band, emits a loud noise and disrupts the reception and transmission of normal telephone signals. This small object is not only to avoid cheating in the exam, but also often used to avoid fear attacks on politics and superiors.
Of course, this means that within 500 meters near the examination room, if it is 200 or 500 away, there is no reason for the impact, then why there is an impact is because the base station itself has a strong magnetic field, and the strength of the magnetic field will affect the screen effect of the exam signal jammer.
This requires attention, otherwise some places will not be blocked, but whether the test signal jammer will be affected or not, better performance and professional models must have it.
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