Today's information security work defense is imminent, especially now that information technology is becoming more and more advanced, and the emergence of many high-tech equipment makes information protection work more and more difficult. Now many units in various regions are mak

High-quality backpack signal jammers are usually powered by a switching power supply, and a suitable battery can be selected for power supply according to the output parameters of the switching power supply used by the jammer. However, when the common battery parameters on the ma

In response to the intermediary's use of Bluetooth speaker jammers, an official from China United Real Estate admitted that using such a method was really helpless, just for "self-protection" and to avoid being robbed by other intermediaries at the last minute to become

Currently, the main communication bands in Australia are 2G, 3G and 4G. Sure, 5G is coming, but Australia isn't one of the first countries to use it

UAVs have the characteristics of low price, small size, and flexibility, and have become an indispensable and important weapon on the modern battlefield. In the conflict between Russia and Ukraine, both Russia and Ukraine used a large number of drones, and achieved good results i

Nowadays, there are ATM automatic teller machines near various bank branches and major shopping malls. In some of these areas, mobile phone signal jammers are installed and used. What is going on? Is it necessary to block mobile phone signals in the area of ​​ATM automatic deposi

When the mobile phone is working, it is within a certain frequency range. The mobile phone and the base station are connected by radio waves to complete the transmission of data and sound with a certain baud rate and modulation method. According to this communication principle, t

I believe everyone should be very familiar with the test room

The wireless intercom system shares the use of the working frequency wireless intercom. Follow the editor to learn about it: