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Errant drones get in crosshairs of startups

High-tech firms are rushing to develop anti-drone techniques to counter UAVs that can smuggle drugs, drop bombs or violate privacy

Singapore's TeleRadio Engineering uses radio frequency signals in its Skydroner 500 anti-drone devices to track and control drones and a video feed to confirm targets visually.


A BOOM in consumer drone sales has spawned a counter-industry of startups aiming to stop drones flying where they shouldn't, by disabling them or knocking them out of the sky.

Dozens of startup firms are developing techniques - from deploying birds of prey to firing gas...

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