• @YourAvgMortal@lemmy.world
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      146 months ago

      It’s like solar energy. You either absorb it with a panel, or it goes to “waste”. You’re not really stealing it from someone else, as long as you’re not getting too much in the way

      • @VirtualOdour@sh.itjust.works
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        26 months ago

        Usong your analogy i think Ops question was really if you have a stack of transparent solar panels will the panel below get less power and the answer is of course it will. If one antenna is behind another there will be a small reduction in the power of the signal reaching it, probably very small but with enough of them you could theoretically construct a faraday cage of sorts.

    • Actually, the waves emitted by the radio tower are enough for a receiving device to generate a small electrical current just through the oscillations of the propagating signal.

      • @CanadaPlus@lemmy.sdf.org
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        6 months ago

        The current produced in the antenna does (induce a field which goes on to) cancel the wave out a bit. Not enough to be noticeable in the far field, for a normal-sized antenna, but some. Conservation of energy, right?

    • @CanadaPlus@lemmy.sdf.org
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      6 months ago

      Yup. It’s typically amplified quite a lot in the receiver, and the vast majority of power transmitted never is received, so it doesn’t usually matter, but it’s not a dumb question.