What signal can the phone jammer block?
Hello! I want to buy a mobile phone jammer, what signal can this device in the market interfere with? Can I order it?
Mobile phone signal jammer can stop the signal of mobile phone use, CDMA, GSM, 3 g, 4 g signals, with the rising of the signal, the improvement of the mobile phone jammers is interference frequency range.High end desktop multi-antenna signal jammers can block signal types, such as GSM+3G+4G+WiFi+GPS+VHF+UHF+LoJack+433+315.This is about video, and you can see more.
In the past, a signal jammer could only interfere with a signal. Before cell phone signals only GSM network, GSM mobile phone jammers can only interfere with the GSM signal, but with the development of the jammer, the market of cell phone jammer can interfere with cell phone use to signal, including GSM, 3 g, 4 g, 4 g LTE signal, not only that, they can also interfere with GPS, wifi, bluetooth signal. As people demand more, a signal jammer can interfere with more and more signals. The design USES the idea of multiple antennas to solve the problem.
Before buying, you need to know what you want to block signals, ordinary (234 g) for selective blocking the signal, if you are only 23 g block or block only 34 g, this can be adjusted before they go out, and another 2.4G WIFI, 5.8G WIFI, VHF, UHF frequency band.About the use of shielding place, if it is used in indoor places, generally fit examination room, conference room, office space such as shield machine is a type of, petrol stations need to use explosion-proof heat resisting; If it is an open area outside, it is necessary to use the medium power signal shield to reach the proper distance.
Can interfere with the current common signal frequency band, including wifi, bluetooth, GSM, 3g and other frequency band signals, so widely used in schools, libraries, prisons and other places.
The exterior of the shield is a kind of outer antenna and a built-in antenna, and basically, the external antenna is out of the antenna, and it's out of the outside, so it's a little bit bigger than the built-in antenna; The external antenna is more stable because of the extended antenna. The shield can generally be divided into small power, medium power, high power, between 3W and 100W, and it is generally not recommended to use a large power signal shield, which can seriously interfere with the transmission of the base station signal and also have a certain degree of radiation to the human body.