Copper Mesh To Block Cell Phone

Mobile phone jammers are mainly used in various examination rooms, schools, churches, courts, libraries, conference centers, etc. and other places where the use of mobile phones is prohibited. With the development of the market, Copper Mesh To Block Cell Phone brands have become more and more powerful, with different quality and price. So what do you need to consider when choosing a mobile phone signal jammer in Shenzhen? I believe that many people have doubts. The selection of Shenzhen mobile phone signal jammers needs to be considered as follows: shielding the frequency band. Before purchasing, you must know which signals you want to shield. The usual mobile phone signal (234G) can be selectively shielded. If you only shield 2, 3G or only 3, 4G, this can be adjusted before leaving the factory. . And our company’s mobile phone signal jammer uses full-band shielding. If users need to shield a certain signal, they only need to install the corresponding antenna on the machine. For shielding applications, if it is an indoor application, it is usually suitable Mobile phone signal jammers in examination rooms, conference halls, offices and other spaces are of one category. Gas stations must be explosion-proof and high-temperature resistant; if it is an outdoor open area, medium-power equipment must be used to achieve a suitable spacing; cell phone jammer

On the outside, the mobile phone jammer can be divided into an external antenna and an internal antenna. Generally speaking, the external antenna extends outward because the antenna is external, so it occupies a larger space compared to the internal antenna; Because of the extended antenna, the effect of the external antenna is a bit more stable; Copper Mesh To Block Cell Phone Usually can be divided into low power, medium power, high power, power 3W-100W each other, when we recommend users to choose mobile phone signal jammers, we will The shielding area depends on the total area; the shielding range is proportional to the power. Usually, the test room uses a low-power mobile phone jammer. It is enough to install one in a classroom, and the approximate shielding range is 200 square; and the high-power mobile phone interferes The shielding distance can be 300-400 meters, depending on the local field strength. Generally speaking, the smaller one must be hand-held and portable, relatively small in size and easy to carry; Usually the body is not very large, similar to a small laptop; the high-powered one is relatively heavy, and the tow-box type is particularly large; the hand-held mobile phone signal jammer is a built-in lithium battery, which is used after the battery runs out. The power adapter can be charged; the desk-type examination room uses 220V voltage power supply, and the car-mounted application usually uses 12-36V voltage power supply.