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Usually wifi jammers and cell phones have their own magnetic fields



Cell phone blockers have become the standard equipment in the examination room. Not only the Chinese examination, but also graduate exams, civil service exams and various qualification exams, all require cell phone jammers to stop applicants from communicating with the outside world through wireless signals. In the use of large exhibition electronic wifi and cell phone jammers in the examination room, a variety of 5g blocker, wireless intercom signals, Bluetooth WiFi signals, etc. will be disturbed obscured.

So let’s talk about cell phone jammer, why it will stir your cell phone signal?

We can compare cell phones to radios these days. The radio often rotates, perhaps the channels are messy and inaudible. This means that the signal is scrambled. Since the radio can be scrambled, the cell phone is on and scrambles certain devices.

There are many different titles for wifi and cell phone jammers, such as jammer, cell phone jammer, signal jammer, cell phone signal jammer, cell phone signal blocker, cell phone isolator, cell phone blocker, mobile communication signal jammer, cell phone signal degree protection device, cell phone jammer, signal jammer, cell phone shield, signal blocker, cell phone signal isolator, signal isolator, signal blocker cell phone, signal blocker, signal blocker, signal blocker, signal blocker, signal blocker, signal blocker, signal blocker, signal blocker, signal blocker, signal blocker, signal blocker, signal blocker, signal blocker. Radio signal jammer.

For the upstream and downstream channels of the cell phone system, using frequency doubling, frequency division, frequency hopping filtering and other technologies to dissect the required shielding frequency; based on the power of the cell phone jammer custom spherical shielding space, automatically constitute a shielding magnetic field within the specified range to make cell phone handsets (including PHS-PHS GSM-China Unicom, China Mobile, CDMA-China Telecom) in this space effective. When the cell phone shield in the task form, can be closed within the rules of the phone’s transceiver signal function, can not talk, in order to achieve the purpose of “forced to stop”.

Radio communication principle: in a certain frequency range, cell phones and base stations through the wireless electromagnetic wave connection, the transmission of data and sound supplemented by a certain transmission speed and modulation method.

The wifi jammer and cell phone communication principle, the jammer in the process of the task at a certain speed from the front channel to the high-end stop low frequency scanning. This scanning speed can cause the cell phone to receive the audio signal to present scrambled interference, the phone can not detect the normal data sent by the base station, so the phone can not establish a connection. With the base station. The cell phone behaves as a search network, no signal, no service system and other scenes.

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