Why is it that we have a dozen or so different electromagnetic wave types and yet every one can be used for analog and digital communication?

Question

Hi all: Why is it that we have a dozen or so different electromagnetic wave types and yet every one of them can be used for analog and digital communication?

Thanks!

In: Physics

Answer 1

The electromagnetic spectrum, going from longest wave-length to shortest, is radio waves, microwaves, infrared, visible light, ultraviolet, x-rays, then gamma waves. Radio waves, obviously, are used for communication, and of course visible light. Can any of the others feasibly be used for long distance communication too? I don’t know…