It is true that 3G is used for video calls, but 4G can also do the same, so a simple 3G jammer will not prevent video calls. That generation of mobile communications did provide huge data transfer speeds, which is why this standard can be used to organize video streams. For these reasons, 3G is also widely used for hidden video surveillance. Our SFC15 signal cell phone jammer can block 3G, but you can’t be sure that it will interfere with video calls because they can also be made on 4G. 4G is the fastest mobile generation, and it provides better speeds than 3G. And this mobile standard can be used to make video calls. To block 4G, you will need a more advanced signal blocker because SFC15 will not block 4G, because those mobile generations use different frequencies for broadcasting. 3G uses 2100 MHz, and 4G uses frequencies around 875 MHz. But we at perfectjammer.com can provide you with equipment that will block 4G.
Futaba’s FASST (Futaba Advanced Spread Spectrum Technology) radio control series is most commonly used in various aircraft models. You can also use it to control toy cars. In theory, the device consists of a transmitter and a receiver. When you hold the transmitter, the receiver will be installed on the model to be controlled. In Perfectjammer, what we like about this device is its ability to work with electric and gasoline aircraft and boats. It is versatile and has technology to protect equipment from RF interference. This special FASST technology is very convenient, because with it, you can not only switch between different channels in the 2.4 GHz frequency, but the device can do it by itself. It will select the best channel itself and avoid any interference due to no signal conflicts. But our RCJ40-D can still jam it. The FASST system can avoid interference by moving frequencies in the main 2.4 GHz frequency spectrum, but if the entire 2.4 GHz frequency will be blocked-it will not be able to transmit signals.