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> "Military-grade" systems use complicated techniques like frequency-hopping spread spectrum Note that that technology has been around since World War II. And
by wfunction 9y ago
> "Military-grade" systems use complicated techniques like frequency-hopping spread spectrum
Note that that technology has been around since World War II. And fun fact, while we're on that topic, this page is worth a read: https://en.wikipedia.org/wiki/Hedy_Lamarr https://en.wikipedia.org/wiki/Hedy_Lamarr
- tjl 9y agoI love that a technique that's so widely used now was the co-invented by a movie star. It's also used in cell phones.