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What should be paid attention to when using a mobile phone signal jammer?

by LIU YIFA 05 Jun 2025

Most users lack sufficient knowledge of mobile phone signal jammers. In order to achieve better results, unilateral selection of high-power mobile phone signal jammers will bring many hidden dangers. The principle of mobile phone signal jammers is to use broadband to send interference signals to interfere with the uplink signal of the mobile phone to achieve the effect of shielding the work of the mobile phone. Therefore, this is the source of the signal itself.

As a signal source, there will naturally be radiation. According to the requirements of use, the transmission power of existing cell phone signal jammers ranges from 1W to 100W. The transmission power of ordinary mobile phone signal jammers for examinations and meetings is between 10W and 60W.

For smaller examination rooms and small meetings, choosing a low-power mobile phone signal jammer can achieve a good interference effect. However, from our survey of large schools and important meeting places, many places often unilaterally pursue high-power interference. For example, in a school with more than 20 classrooms, each classroom is equipped with a mobile phone signal jammer, and a transmission power of 30W is selected.

cell phone jammers

In addition, after the exam, due to the lack of attention to use, there are often a small number of mobile phone signal jammers that are not turned off in time and transmit interference signals for a long time. Especially in some primary schools, after the exam, the mobile phone signal jammers have not been turned off for two consecutive weeks.

Therefore, I strongly urge all those who need to use mobile phone signal jammers:

1. Do not blindly choose high-power mobile phone signal jammers. For classrooms, choosing 2W transmission power shielding is enough to achieve the shielding effect.

2. After using the jammer, remember to turn off the mobile phone signal jammer in time to avoid long-term startup and cause communication interference to surrounding residents.

3. Be sure to choose a mobile phone signal jammer for sale produced by a regular manufacturer. Mobile phone signal jammers produced by informal manufacturers are often in pursuit of a larger interference range. When debugging the equipment, they are not in accordance with relevant standards, resulting in the mobile phone signal jammer turning on. After the power is on, it affects the surrounding residents or the operator's base station.

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