• CanadaPlus@lemmy.sdf.org
      link
      fedilink
      arrow-up
      1
      ·
      edit-2
      1 day ago

      Hmm, how much heat does it take for something to become visible? A high power antenna will get hot, but if it’s a signal type that’s jamming resistant otherwise maybe it can use a normal civilian level of power.

      • lemming741@lemmy.world
        link
        fedilink
        English
        arrow-up
        1
        ·
        1 day ago

        Emissivity is probably different, and if the shell is thin and plastic, probably closer to ambient temp

        • CanadaPlus@lemmy.sdf.org
          link
          fedilink
          arrow-up
          1
          ·
          edit-2
          1 day ago

          Oh right. I supposed unless it’s absolutely cooking a thermal blanket would hide it decently well. You’d need to be careful the radio/microwave frequencies of interest aren’t blocked as well, though.

          Edit: If it’s a non-directional transmitter you can just find it pretty easily from it’s transmissions anyway.

          A receiver should be totally cold.