http://Budget Drones Prove Their Val...-android-share
But starting in the summer, a flurry of tweaks to drone designs and radio frequencies began to allow Ukrainian pilots, who had initially lost dozens of drones in the opening weeks of a counteroffensive in the south, to send their drones far beyond the front line — drifting high above farm fields and villages — in search of Russian artillery pieces, tanks and other targets, even as those same targets hunt the Ukrainians. “Oh, a missile flew past,” one drone pilot said calmly after a plume of white smoke appeared only yards from the drone he was piloting during a flight last week. “It means we flew over something interesting.”