> Logically speaking, if the wavelength that we use for forms of radio communication make it to earth, then we would need to transmit at a higher power to overcome that background noise.
If this were true, GPS wouldn't work. It's entirely possible to communicate below the noise floor. See https://www.pa3fwm.nl/technotes/tn09b.html for a mathematical analysis.
If this were true, GPS wouldn't work. It's entirely possible to communicate below the noise floor. See https://www.pa3fwm.nl/technotes/tn09b.html for a mathematical analysis.