With the continuous development of science and technology, the mobile network has also been updated several times, from the original 2G mobile phone network to the current 3G, 4G and 5G mobile phone mobile signal networks. At the same time, the wireless wifi signal jammer is also constantly updated. Radio frequency jammers are mainly used in school examinations, college entrance examinations and some places where the use of mobile communication equipment is prohibited, so why do the jammers in the examination room choose radio frequency jammers with built-in antennas?
First of all, the built-in antenna is more beautiful than the external antenna
Secondly, after the jammer with the metal shell of the external antenna is turned on for a long time, the machine will generate a relatively high temperature, which also has certain safety hazards, and now it is made of high-plastic materials, which is a good solution to the problem. this problem. The built-in antenna is more environmentally friendly and safe.
Finally, the radio frequency jammer with built-in antenna is easy to carry, more practical, and has a lower damage rate. Because the external antenna jammer is prone to the loss or damage of the antenna, the built-in antenna radio frequency jammer has the transmitting antenna and power supply built into the shell, so that the operation is very simple and convenient to carry. It can be used normally after the power is turned on, and there is no need to disassemble the antenna after use, just turn off the power, which greatly improves the use effect and later maintenance costs.
