I’m watching a variety of YouTube videos trying to understand how a signal from a Wifi router, TV broadcast antenna, and cell phone towers create and send a signal to the receiving devices. All I can find is that the tower/device creates an “electro-magnetic” wave (very simple explanation and nothing further) OR something way too complex for me to understand as a non-engineer.
So are these electro-magnetic waves simply “vibrating” nearby electrons and the wave continues to the next nearby electrons and so forth (like the waves in a still pond that created when you drop a pebble in the middle of it)? Or, are they actually sending the same electrons out from the source until they hit something? Or something else?