Comment on Sign language is just radio communication but on another frequency

• astrsk@kbin.social ⁨1⁩ ⁨year⁩ ago

  RADAR: RA(dio) D(etection) A(nd) R(anging)

  It doesn’t rely on self transmission. It can but you can detect and range other sources without generating it yourself.

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  • jonatan83@lemmy.fmhy.ml ⁨1⁩ ⁨year⁩ ago

    That’s just what the acronym means, it doesn’t describes the actual process. I don’t think there is a single RADAR that doesn’t have a transmitter. At that point it would just be a… radio.

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    • Atrabiliousaurus@lemmy.world ⁨1⁩ ⁨year⁩ ago

      Passive radar?

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      • jonatan83@lemmy.fmhy.ml ⁨1⁩ ⁨year⁩ ago

        Fair enough, though I would argue that’s a very specific subtype of radar and anyone saying “radar” refers to the type that is used in 99.999% of the cases.

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• skillissuer@lemmy.world ⁨1⁩ ⁨year⁩ ago

  unless you’re communicating by waving glowsticks, it’s passive radar

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