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Selectable Portable Gps Wifi 3G Cell Phone Signal Jammer

Perfectjammer 2021-10-7

Selectable Portable Gps Wifi 3G Cell Phone Signal Jammer

In the exam season each year, many parties are gradually anxiously planning the examination work, and the invigilators have their own tricks to avoid new technology fraud. Among them, the special test room Selectable Portable Gps Wifi 3G Cell Phone Signal Jammer is still a counteracting jammer. As a well-known manufacturer of mobile phone jammers, there are various types, models and specifications of mobile phone signal jammers. The application party should determine its own requirements before purchasing. cell phone jammer In order to prevent the poor actual shielding effect from causing safety accidents in the examination room, we are still paying attention to the accuracy of the operation method.

First of all, I want to establish the application site. Most of the original test site type Selectable Portable Gps Wifi 3G Cell Phone Signal Jammer are suitable for long-term work and are durable. Secondly, how big are we in the shielded area? For example, for a house of 100 square meters or a site of over 1,000 square meters, the output power must be larger if the total area is large, and the shielded output power must be adjusted if the total area is small. And what frequency band must be blocked, is China Mobile, China Unicom, telecommunications network, and CDMA all blocked? Or only a part of the frequency band must be shielded. In order to achieve the best practical effect when choosing a suitable cell phone jammer, you also need to look at the application skills. Among the most important aspects are the following: The room-type mobile phone signal jammer is proposed to be placed at a height of 180cm-220cm from the ground, and the viewing angle is preferably extended. Is there an obstruction (such as wall, metal, body, etc.) between the mobile phone signal jammer and the wireless communication equipment (mobile phone, etc.). The electromagnetic interference sent by the jammer will have a different level of attenuation coefficient after passing over the obstruction, please try to reduce it as much as possible. The weaker the wireless communication receiving sensitivity in the application conditions, the stronger the actual shielding effect of the basic theory of the mobile phone signal jammer. The longer the distance between the mobile phone jammer application scenario and the communication base station, the stronger the actual shielding effect of the basic theory of the mobile phone signal jammer.

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