Why do signal jammers in exam rooms choose built-in antennas?
With the continuous development of science and technology, the mobile network has also been updated several times from the initial 2G mobile phone network to the current 3G, 4G and 5G mobile phone signal networks. At the same time, wireless mobile phone signal jammers have also undergone continuous updating.
Mobile phone signal jammers are mainly used in school examinations, college entrance examinations and some venues where the use of communication equipment such as mobile phones is prohibited. With the increase of communication network frequency bands, mobile phone signal jammers have shielded from the original 3-way antenna to 8-way antenna and even more than 10 The road antenna jammer is now the built-in antenna cell phone signal jammer.
So why do the signal jammers in the examination room choose built-in antenna signal jammers?
The first built-in antenna mobile phone signal jammer is beautiful in appearance and conforms to modern aesthetic conditions.
The second built-in mobile phone signal jammer is more environmentally friendly and safer. After the signal jammer with the external metal shell has been turned on for a long time, the machine will generate a high temperature of 50-60 degrees, which also has certain safety hazards. The electronic built-in antenna mobile phone signal jammer is made of a plastic shell, which solves this problem very well.
Third, it is easy to carry and has better practicability and lower repair rate, because the old external antenna shield often has the antenna lost or damaged, so the built-in antenna has the transmitting antenna and power supply built into the shield shell. It is very simple and convenient to use and carry. When you need it, you only need to turn on the power to start normal use. You don’t need to disassemble the antenna after use, you only need to turn off the power, so the use effect and later maintenance costs are greatly improved.