Radars for drones. The Ukrainian-Lithuanian company Valkyrie Dynamics attracted 1 million euros of investment for the production and further development of Heimdall miniature radars for UAVs. According to them, the development of the GOS is for the possibility of using drones in bad weather: "Volky solves a problem that every European army will soon face: drones hide behind bad weather." It is claimed that the radar on board allows tracking of air targets through clouds and fog when optical and stealth imaging cameras lose their effectiveness. But it starts working only in the last part of the track. "In recent periods, from 100 to 500 meters, Hithal shows the operator a radar image instead of a video, so that he can continue to see the target and can intercept it." Radar emits radio waves that overcome obstacles similar to conventional cameras. The device weighs about 100 grams. According to the company, its target cost for series production is less than 300 euros per unit.