How to send and receive an electrical signal? Answered
I don't know much about radio waves and oscillator circuits , AM/FM and stuff, but I need to send just electrical signals wirelessly, without any information on it, to some other device which activates when it would detect the signals. I would prefer to make the devices myself, if it is possible, without needing to buy anything, like RF oscillators and other stuff.
I was told that whenever electricity passes through a wire, a radio wave is emitted outwards from the wire, and is emitted every time the current flow stops, starts or changes direction,
I was also told that whenever a radio wave crosses a wire, it induces a very small current in it.
I don't know if whether the above information was correct or not but I think I can use it in making such a device.