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Cell Phone Signal Jammer For Sale In South Africa

Perfectjammer 2021/08/18

The power adapter should be more than 20cm away from the host; (If Cell Phone Signal Jammer For Sale In South Africa When installing, due to the limitation of the installation environment of the site, it is not possible to keep the power The adapter will still be disturbed by some strong magnetic fields from the main body of the mobile phone jammer, but it will be less disturbed compared to the power adapter close to the two sides of the main body.) There is no strong electric line within 20cm of the antenna. AC220V); (Including the strong electric dark wires embedded on the left and right sides of the antenna, above the antenna, and the wall where the antenna is located, etc., cell phone jammer If it cannot be prevented, please try not to be within 10cm of the antenna)

When the mobile phone communicates with the base station, Cell Phone Signal Jammer For Sale In South Africa is like a troublemaker, deliberately making noise around you. The noise signal is so big that the mobile phone can't understand what the base station is saying, and the base station can't hear what the mobile phone is saying. In fact, this is not to shield the mobile phone signal, but to obliterate the signal sent by the mobile phone in a large number of noise signals, so as to achieve the purpose of interference. At present, the mobile phone signal jammers used in the examination room are all full frequency bands, which can interfere with all the frequency bands of the three operators 2G/3G/4G/5G, and WIFI signals and Bluetooth signals can also be shielded. The above is the principle of mobile phone signal jammer. However, the frequency band of electromagnetic waves ranges from a few Hz to several hundreds of GHz, and each segment may be used as a communication signal. Will there be some special frequency bands that are used in the examination room?