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Cell Phone Shut Off Leaves Messege That Block Can'T Block Carriers

Perfectjammer 2022/05/08

The basic principle of 5G mobile phone signal jammer is actually not difficult. As a mobile communication technology equipment, a mobile phone must first establish a connection with the surrounding communication base stations when communicating, and then connect to the base station equipment to find the communication arrival station. In the above whole process, all information content is installed and transmitted according to radio waves. The frequency band of radio waves commonly used by mobile phones is related to the common style of mobile phones and the carrier they belong to. But in general, the three operators use radio frequency bands in the 850-4900MHz range. If you want to block the mobile phone signals in the test room, it is unlikely that the 2G/3G/4G/5G communication base stations of each operator around the test room will not work, otherwise all the communication equipment in this area will be paralyzed. Can't communicate properly. Since it is not possible to shield from the operator, the only way is to shield the mobile phone signal in the test room. Shielding the mobile phone signal can reasonably avoid the situation of fraudulent use of mobile phones, thereby avoiding all fraudulent personal behaviors. In general, the Cell Phone Shut Off Leaves Messege That Block effective range is within 25 meters, and ideally a machine can provide a total area of ​​100 square meters of interference. Cell Phone Jammer The total output power of the transmission should not be too high, otherwise it may cause a certain amount of radiation to the body. Long-term exposure to radiation can cause damage to the human body. Therefore, when purchasing a jammer, not only the scope of efficacy, but also the scope of efficacy should be considered. output power to the machine.

I recently received a consultation from a customer, and the college entrance examination is about to take place. I need to use a mobile phone signal blocker. However, because there is a Unicom base station within 300 meters of the school examination room, the previous signal blocker is not very effective. It is just now that it can block 5G mobile phones. Signal jammer, is there any suitable full-band Cell Phone Shut Off Leaves Messege That Block recommendation? There is a Unicom base station within 300 meters of the test room. This distance can be said to have a relatively large impact on the shielding effect of the signal jammer. In this case, it is necessary to use a mobile phone signal jammer with a higher power to ensure the shielding effect. In the process of domestic college entrance examination, adult college entrance examination, self-study examination and various colleges and universities, some criminals use mobile phones to cheat. According to the actual situation of domestic mobile communication, a high-tech product has been carefully developed and can be used in a radius of 1-30 meters. The range cuts off the mobile phone signal and WIFI wireless signal, so that the mobile phone cannot talk and surf the Internet, and the WIFI cannot work normally.