The growing threat of drones and unmanned aerial vehicles (UAVs) for espionage and eavesdropping purposes has rapidly increased the need for drone jammer systems, and defense companies have begun researching and developing the technology.

As the drone threat has grown, the technology to counter it has matured. Earlier solutions that seemed stressful and unconventional, such as the use of birds, have given way to solutions rooted in existing military technology. A common structure seems to have taken shape: it integrates modern radar, electro-optical sensors and jamming technology into a complete counter-drone system.

In response to the recent drone attack on the Venezuelan president and the high-profile mail bomb attack in the United States, a new type of drone combat device has been developed recently, which law enforcement agencies can legally use in large-scale outdoor activities without causing public attention.

Therefore, devices that jam the signal, such as portable drone jammers, can effectively prevent drones from flying.
If the drone proves to be hostile and needs to be neutralized, the next step is activated. A powerful jammer that interferes with the drone's radio signal is mounted coaxially with the photoelectric sensor. Depending on the software, the drone might try to return to the operator (it might follow the trajectory on the radar), land, or just lose control.

The drone jamming system is designed to protect military bases, facilities, high value assets, checkpoints and VIPs from drone attacks by jamming the drone's remote control frequencies, GdronePS satellite navigation frequencies/GLONASS, and data link or telemetry frequencies.

The drone frequency jammer is equipped with a radio electronic warfare system, which has been in use in Russia for about two years. Since the first excursion, its autonomous distance has increased from 32 kilometers to 100 kilometers.

Russian drones and ground stations fly in groups of two or three. The first acts as a signal and communication relay, while the other acts as a jammer. This system is called Leer-3. Essentially, drones disrupt the enemy's ability to communicate with each other, which could mean the difference between life and death in war.