Yellow Screen for Phone Blocks Radiation Prevent Noise Pollution

Then there is the reliability of the actual effect of shielding, because whether it is a junior high school, high school or college entrance examination, the time period for one test is not short, and there are 2 tests in one day. If the actual effect of the ordered Yellow Screen For Cell Phone Blocks Radiation is not stable, there are If the data signal cannot be reasonably shielded for a period of time, it is very easy for candidates to use this time gap to carry out personal behavior of cheating, which will make the work of preventing high-tech cheating fall short. At the same time, the mobile phone signal jammer in the examination room should preferably have low noise during operation, which will not easily disturb the candidates who have already started the examination, and will not endanger the safety of the candidates and invigilators.

All kinds of examination rooms, conference rooms, gas stations, oil depots, churches, hospitals, courts, military centers, libraries, theaters and other places are prohibited from using communication equipment such as mobile phones in some cases. In order to prevent the use of mobile phones in these places, Yellow Screen For Cell Phone Blocks Radiation is used to block mobile phone signals. However, at certain times, such as when the examination room is conducting an examination, in addition to shielding mobile phone signals, other communication devices including walkie-talkies, Bluetooth headsets, etc. need to be shielded. Can the multifunctional wireless signal blocker block the walkie-talkie? In fact, the multi-function cell phone jammer is aimed at the uplink and downlink channels of the mobile phone system. It uses frequency multiplication, frequency division, frequency hopping filtering and other technologies to analyze the required shielding frequency; customize a spherical shielding space according to the power of the shield, and automatically within the specified range. The formation of a shielding magnetic field can make the mobile phone within the specified range ineffective in sending and receiving signals, unable to dial out and dial in, and unable to access the Internet, thereby achieving the purpose of forcibly disabling mobile phones. As long as the frequency band used by the walkie-talkie is shielded, the use of the walkie-talkie can be effectively shielded.