Why does the mobile phone still have a signal after the full-band signal jammer is turned on?

Why does the mobile phone still have a signal after turning on the full-frequency jammer?

With the continuous advancement of technology, mobile phones are becoming more and more indispensable in people’s lives, but in some important examination occasions, the government forces the use of full-frequency jammers to prevent candidates from cheating with mobile phones. However, some mobile phones can still receive signals after turning on the full-frequency jammer. This article will explain this phenomenon in detail.

First, if the mobile phone can still make calls after turning on the full-frequency Cell Phone Jammer, and the call quality is good, it means that the jammer has not achieved the shielding effect within the effective shielding range. If you are very close to the jammer, the mobile phone will lose the signal, which means that there is a mobile phone base station or indoor signal amplifier near you. It is recommended to use multiple higher-power jammers to achieve the necessary on-site shielding requirements.

Secondly, if the mobile phone shows a signal after turning on the jammer, but the call quality is poor, it means that the jammer’s shielding effect on the mobile phone is in a critical state and unstable. This situation may be caused by fluctuations in signal strength from the base station to the jammer location, or the strong anti-interference ability of some mobile phones. In order to solve this problem, it is recommended to use a more efficient full-frequency jammer to ensure a stable shielding effect.

Finally, if the mobile phone shows a signal after turning on the jammer, but it cannot make calls or surf the Internet normally, there is no signal or service is limited during calls, which means that the mobile phone has been effectively blocked by the jammer. It should be noted that the shielding range of the full-frequency jammer is affected by the strength of the mobile phone signal at the user’s location. Generally, the stronger the mobile phone signal, the shorter the shielding distance of the jammer, and the weaker the signal, the larger the shielding range. Best-selling WIFI jammers and GPS jammers in Europe and America.

In summary, when encountering mobile phone signal problems during the use of the full-frequency jammer, it is necessary to conduct a comprehensive analysis and take corresponding countermeasures according to the specific situation to ensure the effectiveness of the full-frequency jammer and maintain a fair examination environment.

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