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Mobile phone signal jammer brings fast and convenient information security

Perfectjammer 2020-12-26

cell phone jammer

There are usually two ways to shield cell phone signals: one way is the same as the principle of closed-circuit television. Putting the cell phone into a metal mesh bag, in principle, all electromagnetic waves will be shielded. Another is that if you walk into an area, the phone will have no signal. This is because there is an electromagnetic wave transmitter in the area. Its frequency is the same as that of the phone. The signal it emits interferes with the signal of the phone. The current mobile phone signal jammers on the market work according to the second method. In fact, the principle is very simple, but private use of this frequency band is illegal and cannot generate commercial value, but now schools are starting to use it to prevent cheating. Let's take a look at its working principle.

The working principle of the mobile cell phone jammer: the specific principle diagram of interfering with the downlink signal of the mobile phone: When the mobile phone is working, it is within a certain frequency range. The mobile phone and the base station are connected by radio waves, and the data and the data are completed with a certain baud rate and modulation method. Transmission of sound. In response to this communication principle, the mobile phone signal jammer scans from the low end frequency of the forward channel to the high end at a certain speed during the working process. This scanning speed can cause garbled interference in the message signal received by the mobile phone, and the mobile phone cannot detect the normal data sent from the base station, so that the mobile phone cannot establish a connection with the base station. The mobile phone is manifested as a search network, no signal, no service system and other phenomena.

Within a certain frequency range, the mobile phone and the base station are connected by radio waves, and data and sound transmission are completed with a certain baud rate and modulation method. The jammer scans from the low end frequency of the forward channel to the high end at a certain speed during operation. This scanning speed can cause garbled interference in the message signal received by the mobile phone. The mobile phone cannot detect the normal data sent from the base station, so that the mobile phone cannot establish a connection with the base station, achieving the purpose of shielding the mobile phone signal. No service system, etc.

MDPB-5E (6 channels) upgraded mobile phone signal jammer is a mobile phone signal jammer specially developed and produced by adopting international advanced shielding technology to meet market demand. The equipment has undergone a brand-new upgrade, changing from 5 channels to 6 channels increases the shielding effect of the device itself on the signal. At the same time, the newly added 4G frequency band solves the disadvantages that other products cannot shield the 4G frequency band, and the shielding effect is superior to other similar products. The shielding effect is stronger, the performance is more stable, and it is easier to be recognized and accepted by customers. The upgraded version of MDPB-5E (6 channels) can automatically form a shielding magnetic field within the specified range when entering the working state, forcibly disabling mobile phone signals, and the upgraded version of MDPB-5E (6 channels) only shields mobile phone communication signals. It does not interfere with other electronic equipment, which has become its rare advantage. The advent of the upgraded version of the MDPB-5E (6-channel) mobile phone signal jammer may completely solve the harm caused to users by the information leakage of communication facilities, allowing people to enjoy the speed and convenience brought by high-tech to mankind while ensuring The security of its information.

How to make the mobile phone signal jammer signal stronger Anti-recording jammers are not easy to be found