Block Telemarketer Calls To Cell Phone With High Power

The mobile phone signal jammer is mainly used in various examination rooms, colleges, gas stations, cathedrals, courts, public libraries, international conference centers (rooms), cinemas, hospital clinics, government departments, financial industries, prison cells, public security organs, Sites where the use of mobile phones is strictly prohibited, such as defense centers. According to statistics, the Block Telemarketer Calls To Cell Phone on the market today can limit the mobile phone data signal 500M meters away from the transmission tower. The radius of the data signal shielding can be adjusted by itself, and the coverage area is above 30 square meters. The output power of the mobile phone signal shielding device is generally 12W--480W. The high-power cell phone jammer can not only shield mobile phone data signals, but also reasonably shield Wi-Fi signals, GPS data signals, and Beidou satellite signals. Among them, since the output power of Wi-Fi and WLAN data signals is in the range of 2.4GHZ or 5.8GHZ, if you must block Wi-Fi signals, it is recommended that you purchase a portable 8-channel mobile phone signal blocker with high power.

So, how large is the mobile phone signal jammer in the exam room? Can only one jammer in an exam room accomplish the shielding purpose? How many mobile phone jammers should be used in a teaching building? First of all, everyone must understand: the exam room Block Telemarketer Calls To Cell Phone One The basic theoretical shielding category is about 0-20 meters across. But it must be noted that this is also the basic theoretical distance. The expected effect should be integrated with the local receiving sensitivity, especially whether there are signal base stations around. If there are signal base stations around 200 meters away, the actual effect of shielding will be discounted.