A jammer is a blocking device of cell phones, which sends the blocking signals to towers from the same frequency range of the cell phones, the interference cause the cell phone to lose the signals from the station.Despite US drones being equipped with anti-jamming technology, NBC quoted US officials stating that Russian disruption technology was “very sophisticated, proving effective even against some encrypted signals and anti-jamming receivers.”
In many situations in our lives, such as examination, meetings, etc., using a mobile phone is very inappropriate, this time in addition to early mobile phones confiscated, can use mobile phone signal shielding device, will be within the scope of the particular occasion, wi-fi signal shielding the signal, without the mobile phone signals, access to the Internet, we wouldn’t go to play mobile phone, it’s very good reach the expected effect.
A mobile phone jammer or blocker is a device which deliberately transmits signals on the same radio frequencies as mobile phones, disrupting the communication between the phone and the cell-phone base station, effectively disabling mobile phones within the range of the gps jammer, preventing them from receiving signals and from transmitting them.If you need to block internet connections in the location around you then you must understand one thing: you cannot block cable internet unless you would cut that cable. But other types of internet like the wireless one powered by WiFi and Bluetooth connections can be easily jammed.
At present, the construction of jammers is being carried out, which will replace the” -22PP “woodcutter” aircraft “serving in the air force. The new jammer will have new equipment to carry out electronic interference suppression for any target in sea, land, land and air, and to scrap the enemy’s satellite for ensuring ground navigation and radio communication.
The Russian sky army now has 3 jammers based on the Yel -22, but the first generation of “lumber” is not particularly large, the reason is very simple – Russia has only about 10 IL -22, and it is no longer produced.So far, the attacks have only affected small surveillance drones, four officials told NBC News, not the U.S. Air Force’s armed Predator and Reaper models. They declined to discuss whether any of the small aircraft had gone down as a result of jamming. High-end drones like the Global Hawk, Predator and Reaper are equipped with inertial navigation systems, which do not depend upon external signals for positioning, in addition to their GPS receivers.