is it possible to speed up the transmission of signals and does the singnal lose energy?

Question

please help me
winning answer gets 5 points

Answer 1

That question is actually more complicated than you think. You can't transmit the signal any faster, but you can pack more information per unit time on it. There's a law (Shannon Hartley) that says the more signal and less noise you have, the more information you can transmit or a unit of time. Yes, all signals have path losses.

http://en.wikipedia.org/wiki/Shannon-Hartley_theorem