Re: Not useful
But we can't pick up regular broadcasts and a beamed transmission is likely to be in the noise at about 10 ly distance only, i.e. a mere handful of likely stars.
Also WHY would anyone beam a transmission? The range of regular broadcasting would hardly reach the Oort Cloud, even if someone parked there with massive dishes.
It's basic thermodynamics, the issue of signal to noise and the inverse square law. We can pick up radio noise emitted by stars on big dishes as that is massive!
Biting the hand that feeds IT
