• Oha@lemmy.ohaa.xyzOP
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    4 hours ago

    Thats what I thought too, but arent those a little smaller? This one is thumb sized

    • jqubed@lemmy.world
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      4 hours ago

      Coaxial cable can come in different sizes, somewhat related to how strong the signal you want to carry is. First time I was in a TV transmitter I saw a lot of copper pipes running across the ceiling, maybe 6 inches (15 cm) in diameter. I asked what the pipes were for and was told they weren’t pipes, they were coaxial cables. Turns out when you need to carry 30,000 watts of RF the cable needs to get a little bigger. Still 75 ohms resistance!

    • bklyn@piefed.social
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      4 hours ago

      I think it’s just very high-capacity. like, this is what they run on utility poles (or bury), and connect to huge switches in your neighborhood before being split up into individual lines.