AM and FM are time and frequency-modulated respectively, of radio signsls. If you look at any other form of energy, such as optics, copper, even just rolling ma

AM and FM are time and frequency-modulated respectively, of radio signsls. If you look at any other form of energy, such as optics, copper, even just rolling marbles down a hill, you'll see the same separation. Are you wanting something that might be done by today's spies, today's clever children or clever children in 10-20 years?