rf engineering
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A 60-Euro Dish and a Coin-Sized Tag Pushed Bluetooth to About 13 km, Over 1,000 Times Its Usual Range Most of us give up on Bluetooth once we walk into the next room, so this result is worth a second look. The team behind the YouTube channel nktbuilds set out to make an ordinary coin-sized Bluetooth tag reach a receiver 12 km away, about 1,200 times the 10 m or so where a normal Bluetooth link gives up. They did it without adding a single milliwatt of transmit power. A 60-euro grid dish, a… |