Ukraine war: How and why Russia is using 'almost indetectable' drones

Noah Sylvia, a research analyst on emerging tech at the UK’s Royal United Services Institute (RUSI), said flying a drone without this transmitter means it does not emit any radio signals that can track the drone's location or its operator. Experts can identify that the Russians are using fibre-optic because, unlike regular FPV drones, the cables provide a high-quality video back to the operator that doesn’t fuzz out when there is interference, Sylvia said.