by Michael Keller
Some of the first responders to enter future disaster zones might be tiny drones equipped with transmitters designed to reestablish WiFi and cellphone communications.
University of North Texas electrical engineers have unveiled prototypes of the multirotor aerial vehicles that they are designing to fly in pairs after the network goes down. One drone would land in the area—perhaps on a rooftop—and the second would be placed in line of sight of the first up to almost two miles away.
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