5G full-band jammers have become the standard test equipment in the examination room. Not only high school entrance examinations, but also postgraduate exams, civil service exams, and various qualification certificates require best signal jammer devices to prevent candidates from contacting the outside world through wireless signals. In the examination room using the jammer, various mobile phone signals (2345G), wireless intercom signals, Bluetooth WiFi signals, etc. will be blocked by interference.
So why can a full-band jammer interfere with your cell phone signal?
For the time being, we can compare mobile phones to radios. Radios often have channels that are confused and inaudible, that is, the signal is interfered with. Since radios can be jammed, cell phones can also be jammed naturally, as well as through some devices.
When we use mobile phones, we need to access our communication operator base station. Different standards of mobile phones use different frequencies, so that everyone can live in peace and not interfere with each other.
The basic principle of the full-band jammer is to transmit the same radio frequency signal as that of the mobile phone. Due to the same frequency, the mobile phone cannot distinguish which signal is a conventional base station signal, thereby achieving "interference". As long as there is a machine on the same frequency as the phone, when the base station tries to connect to the phone, it will make a lot of "noise", and you will find that the signal from the phone cannot be recognized.
Customize a spherical shielding space according to the same frequency band emitted by the full-band shielding device, and automatically form a shielding magnetic field within the specified range, so that the mobile phone in this space loses the signal. When the 5G full-band jammer is in working state, the function of the mobile phone to send and receive signals within the specified range can be disabled, and it cannot be dialed out or dialed in, so as to achieve the purpose of forcibly disabling it.
Many people don't know the difference between Bluetooth, Wi-Fi and mobile data, they are all wireless communication technologies. In fact, the main difference between the two is the frequency band. In mobile communication technology, 2G mainly works in the 900-1700MHz band, 3G works in the 1900-2100MHz band, 4G works in the 2300-2500MHz band, and 5G works in the 3400-3600MHz band. Bluetooth and WiFi work at 2.4GHz.
In this way, the 5G full-band jammer can accurately identify the communication frequency band, develop jammers in the same frequency band, and achieve the purpose of completely shielding the wireless signal of mobile phones.