If radio waves are just non-visible light waves that are picked up by a vibrating rod, how does a radio wave get “encrypted” so that it can’t be picked up unless it’s unencrypted?
Edit: Everyone keeps commenting that the content of the message is what’s encrypted, not the radio waves itself, but that’s not what I mean. Someone answered that digital signals themselves can be modulated or disguised, which is what I meant when I asked
In: Technology
The radio wave can still be picked up. You just don’t know what it’s saying. Think of two people in the same room talking and you are listening. But they are speaking a unknown language.
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