Portable Wireless Signal Scrambler
In fact, it is not only applicable to university entrance exams, but also to qualification exams, high school entrance exams, national exams, etc. This means that cheating using mobile phones has been discovered one after another. I think this method of installing Portable Wireless Signal Scrambler and temporarily "stopping the service" test site is the most effective measure. A radio station license is required to install the equipment. By transmitting a weak radio wave of the same frequency as the radio wave of the notification message from the mobile base station, communication is blocked and subsequent location registration and polling become impossible, so the display of the mobile terminal becomes "out of service area". Communication Was suppressed. We will also introduce this device around the bank. We will start to restrict the use of mobile phones at ATM corners. This is a joint effort by financial institutions to prevent criminal damages such as transfer fraud. Multiple financial institutions will jointly install equipment at ATM corners. It is used as a measure to prevent transfer fraud. Signal Jammer
As the newest military-grade product, the advantages of this cell phone signal jammer are obvious. It has the characteristics of large jamming range and multiple jamming frequencies bands. It can block all cell phone signal(GSM/CDMA, 3G, 4G, 4G LTE),...
This is the latest multi-function jammer that can simultaneously shield signals such as mobile phones, wifi, drones, etc. The farthest shielding distance is 300 meters....
This cellular jamming device has a hidden design. You can hide the antenna and not easily noticeable. Has a separate band control button. You can open or close a frequency band according to your needs. This jammer is easy to carry, and you can put it...
The 14 bands jammers has a large rang of jamming, maximum blocker range up to 70 meters. At the same time you can also adjust the output power as needed...