What Really Is In Carrier Signal ?
We all know that the main concern is the Noise, that gets added in medium.
My question is : Carrier signal is a signal that's been superimposed on information signal, but carrier signal is one type of signal, & every signal do contain some energy thus it is noise.
So, does it mean that in modulation technique, while superimposing carrier signal we're intentionally( or we have to compulsory as there no other to transmit signal to long range) sending Noise alongwith information signal.
What does really this, Carrier signal contains ? No signal is obtained without energy, so there outta be something in carrier signal, what is it ?