Thought patterns

If a transmitter can send things out and a radio picks up that information, why can't thoughts do the same thing?

If I'm transmitting a certain signal (say for instance, positive feelings about everyone), if someone is wired to receive that "signal", then does this happen more often than we choose to be aware of it? And why wouldn't it?  So, what frequency are we transmitting and what frequency are we choosing to be the recipient of?