Studying in the library, I found that there are many companions in the library. Chatting loudly while playing, playing games, reminders are useless. How to do it?
Jammer-MartAugust 2022
I searched for a wifi jammer on the Internet. In fact, I only need to block the 3G and 4G signals used for Internet access, but the blocker that can block 4G has other signal blocking functions, and it is impossible to be portable in terms of size and power. In fact, the structure of the wifi jammer is not complicated. It uses 555 to generate a sawtooth wave, supplies a voltage controlled oscillator (VCO), and then amplifies the power. The three main components (555, VCO, power amplifier) for each frequency band are done. The principle It is also simple, that is, use a high-power radio frequency signal to scan in the corresponding frequency band. I think it is possible to make a self-made shield, which is powered by batteries, and does not need to work continuously. You can turn it on when you can't bear it, or turn it on automatically every once in a while. In this way, the problems of battery life and heat dissipation are solved, and the volume can be made very small. If you find it more troublesome, you can also choose to buy one at Jammer mart, we provide many types of shields for you to choose from.
I searched for a wifi jammer on the Internet. In fact, I only need to block the 3G and 4G signals used for Internet access, but the blocker that can block 4G has other signal blocking functions, and it is impossible to be portable in terms of size and power. In fact, the structure of the wifi jammer is not complicated. It uses 555 to generate a sawtooth wave, supplies a voltage controlled oscillator (VCO), and then amplifies the power. The three main components (555, VCO, power amplifier) for each frequency band are done. The principle It is also simple, that is, use a high-power radio frequency signal to scan in the corresponding frequency band. I think it is possible to make a self-made shield, which is powered by batteries, and does not need to work continuously. You can turn it on when you can't bear it, or turn it on automatically every once in a while. In this way, the problems of battery life and heat dissipation are solved, and the volume can be made very small. If you find it more troublesome, you can also choose to buy one at Jammer mart, we provide many types of shields for you to choose from.