Military jammers are in action

U.S. analysts first caught the Russian military jamming drones in eastern Ukraine four years ago, after the invasion of Crimea, according to Humphreys. He said the UAV jammerwere initially detected as faint signals from space, bouncing off the earth’s surface. The signal jammer “had a pretty significant impact” on the United Nations surveillance drones that were attempting to monitor the area, grounding the fleet for days and halting intelligence gathering from the air.

This explanation is a bit superficial, and intended for simplifying things. However, if we try to “dig” deeper in to this issue, more parameters may enter the comparison between the signal levels of the two “links”.One example is the SNR (Signal to Noise Ratio) that the receiver “sees”at its input. Sometimes the jamming signal arriving at the receiver input, can be lower than the communication (“partner’s”) signal and still prevail. This is happening because usually the receiver needs a certain “margin” between the two signals at its input, in order to be able to interpret one of them (usually the stronger one). However, in advanced communication systems, this “margin” can sometimes be even negative (meaning that the communication signal can be much lower than the jamming signal), and the receiver will still be able to interpret the “partner’s” signal, making jamming a much harder task.

Almost everyone makes use of the mobile phones everywhere whether it is a theatre, educational institute, café, restaurant, office or any other place. People nowadays spend their most of time on mobile phones rather than spending a good time with their families or focusing on their organizational goals. Though mobile phones may help you in a number of ways, it has distracted many lives as well. This is where the cell phone network gps jammer comes into the play. Jamming refers to the act of obstructing something and therefore mobile jamming refers to obstructing the network signals to reach your mobile phone and thereby denying the access to the internet, sending text messages or phone calls.

These “drone rifles” typically target GPS first as it is easy to jam. If that doesn’t work they will start jamming in the typical frequency range of commercial drones to break the link of the controller. On most off the shelf drones if you break either GPS or controller link it will go into “return to home” mode or will slowly hover to the ground and land.

None of these methods require any bright flashing lights, which could easily be a cosmetic feature of the counter-drone system. Given the drone’s sudden spiraling descent in the released video, it’s likeliest that the system featured is a radio-frequency jammer. It is also likely, given the system’s employment on the side of the Russian-backed separatists, that the system is another Russian-made electronic warfare weapon, fielded on the front lines of a proxy war as much for battlefield impact as it is for research and test purposes.