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The network status of the mobile phone jammer is related to the power?

Newman Cecile April 07, 2021 10:30

Mobile phone jammers are designed to reasonably avoid and interfere with mobile phone-related signals. They are mainly used in school examination rooms, prisons, detention centers, etc., to ensure fairness and justice in examinations, such as high school entrance examinations, college entrance examinations, or usual mock exams. The function of the mobile cell phone jammer is to interfere with the downlink signal of the base station, thereby shielding the mobile phone signal.

The working principle of the signal jammer is to scan from the low end frequency of the forward channel to the high end at a certain speed during the working process. The scanning speed can cause garbled interference in the message signal received by the mobile phone. The mobile phone cannot detect the normal data sent from the base station, so that the mobile phone cannot establish a connection with the base station and achieve the purpose of shielding the mobile phone signal. No service system and other phenomena.

The effect of the mobile phone signal jammer is mainly determined by the power. If the device with the same power, the shielding effect of the external antenna and the built-in antenna is determined by the gain of the mounted antenna, the antenna with high gain has higher output power and the shielding effect is Better, so judging the effect of the mobile phone jammer cannot be judged solely from the built-in and external antenna.

What determines the effective shielding range of a signal jammer? The size of the signal jammer power, you must know the actual power when you buy the equipment, the low-power machine within 1W, the shielding distance is about 1-10 meters, and the shielding range is 10-30 square meters.

The density of nearby base stations: Before purchasing equipment, you must understand the surrounding environment of the interference site, that is, whether there are base stations around. If there is a base station within 100 meters, you can use a high-power machine appropriately. Buying a low-power machine cannot shield , Because the signal strength of the base station is too strong.

How to use the mobile phone jammer? After the mobile phone jammer is installed, it can be used after plugging in the power and turning on the power switch. The signal jammer is in the working state, and the mobile phone is in the search network state, and the signal connection with the base station has been lost.