How can we protect the data on our phones?

25 augustus 2021 - New York City, Verenigde Staten

The jammer also has the ability to prevent hackers

A signal is a tool for carrying a message and a carrier of a message. Various radio waves traveling in space and currents in a well-connected telephone network can be used to express various messages to distant parties. This is an electrical signal, and the mobile phone can receive calls by receiving electrical signals. The cell phone jammer uses the solid co-channel interference to intercept the sad band transmitted by the base station to achieve the purpose of shielding the mobile phone signal. When the uplink interference occurs, the mobile phone signal needs to be stronger than the interference signal to communicate with the base station. 

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In military terms, GPS satellite signals determine the military lifeline of a country.The GPS jammer is a signal interception device that specifically blocks GPS. When the equipment starts to work, it can form a shielding interval within a certain range, that is, a "protected area". The GPS signal located in the interval is intercepted, so that it cannot be Position tracking, some high-power GPS signal jammers can block mobile phones and even WiFi signals, generally used in the home or device in the car, as those mini gps jammer can be carried around, in the pocket, and the price is very cheap. 

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Wifi signal jamming devices are mainly used in examination rooms, prisons, gas stations, mobile phone bombs, oil depots, detention centers, interrogation rooms, special security and confidential sites. Different types of mobile phone shielding devices have different power and interference ranges. The low-power wifi network jammer device belongs to a small-range shielding product, which is relatively cheaper, and is more suitable for an open area, and has a weak wall-piercing capability. For some test sites, if there is no base station within 500 meters, one desktop wifi blocker in the test room within 100 square meters is enough. 

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