With the coming of summer, primary and secondary schools across the country have started to have holidays, but the tests for parents are coming one after another - what should I do if my children are addicted to chatting on mobile phones, what should I do if my children do not have a good rest and play mobile games in the middle of the night, what should I do if my children hold their mobile phones all day long and are indifferent to other things? what to do? These are the questions I get the most lately. Some parents have also reported actual difficulties and hope to purchase mobile phone signal jammers for home use to interfere/cut off mobile phone signals. So next let’s talk about how to choose a mobile phone signal jammer for home use (to prevent students from being addicted to mobile phones).
- Shielding range: The shielding range is directly proportional to the power. One low-power signal jammer is enough to install in a room, and the shielding range is approximately 20 square meters; while for high-power signal jammers, the shielding distance can reach 100-400 square meters. , depending on the local field strength or whether it needs to pass through the wall (some parents will choose to install a mobile phone signal jammer in their own room).
- Signal strength: the distance from the surrounding area to the signal base station, and many residential buildings now have signal base stations or signal amplifiers on the roofs. Our professional sales staff at Dazhan Electronics will teach you how to determine the signal strength in the room and choose a suitable home jammer.
- According to the shielded frequency band: Before purchasing, you need to know which signals you want to block. Ordinary mobile phone signals (2G,3G,4G,5G) can be selectively blocked. If you only block 2G or only 3G4G5G, this can be adjusted before leaving the factory. There are also 2.4GWIFI, 5.8GWIFI, VHF, UHF and other frequency bands. Here we need to explain the functions of each signal frequency band. To put it simply, 2G is the frequency band for making phone calls, and 2345G is the frequency band for mobile Internet access, so it depends on the specific requirements for shielding the frequency band.
- Appearance: In the appearance of the mobile phone signal jammer, the jammer can be divided into external antenna and internal antenna. Generally speaking, the external antenna has an external antenna and extends outward, so compared with the internal antenna, the It occupies a larger space and is more stable because of the antenna extending outward.
- Power supply: The power supply method of the jammer is generally a handheld one with a built-in lithium battery. After the power is used up, you can use the power adapter to charge it. The desktop examination room uses a 220V voltage supply, and the vehicle-mounted one generally uses a 12-36V voltage. powered by.