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Information Security of Railway Train System-GSM-R SIM Card
Information Security of Railway Train System-GSM-R SIM Card

Some train operators need to use GSM-R SIM cards to ensure that the train is connected to the control center. Although most GSM-R SIM cards use encryption, hackers can use GSM jammers to block the communication channel between the train and the control center. The GSM signal blocker can prevent the mobile phone from receiving signals from […]

mobile phone jammer
mobile phone jammer

In the Internet age, information is very important to us, which is related to our personal identity information and property information. How to protect our personal information has become an important means for most people to use signal jammer . Large exam venues, prisons, movie theaters, churches, etc. all need jammers to maintain order and quiet on […]

Portable gps jammer is perfect for your car
Portable gps jammer is perfect for your car

A cell phone jammer is a device that blocks reception between cell towers and mobile phones. Developed for use by the military and law enforcement, these devices were originally created to combat threats like cell phone-triggered explosives and hostage situations. If you have to ask what is a good signal jammer, then I think you like it […]

High power jammer
High power jammer

High power jammer, The all-in-one solution for blocking GSM, 3G, 4G cellular networks and all kinds of popular cellular standards (GPS, WiFi, Bluetooth, VHF, UHF etc.). The jammer is using state-of-art technology for maximum performance and to successfully cut-off all cellular communication between mobile phones and cellular cells. All cellular mobile in vicinity of our […]


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