The 2.4G WIFI signal can also provide effective shielding, so that people who are using mobile phones or some electronic products cannot receive and send any messages within this shielding range. Only this kind of guarantee can enable those who are struggling to take the exam in the examination room. Candidates have a fair and stable order guarantee, and this exam Build A Cell Phone Jammer Circuit is very quiet when used, and will not cause any noise. It also ensures that the exam room needs to be very quiet, and this shielding method will not cause any damage to the human body. Candidates can answer the papers in peace of mind for any injuries. cell phone jammer
How does the test signal jammer shield the 4G signal? Many friends don’t know much about the working principle of Exam Build A Cell Phone Jammer Circuit. They only know that they can isolate the communication signal of the mobile phone. In fact, if you want to understand its principle, you must first understand how the mobile phone communicates. Generally speaking, it is sent by the mobile phone. The communication signal is in a certain frequency range, and then it is connected to the base station through radio waves, and finally the data and sound transmission is completed. Therefore, according to this principle, the test signal jammer can deal with them in a targeted manner. The communication signal is isolated.
