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the theoretical range of RF propogation and its actual rage , at which a coherent signal can be received = light years apart [ pun intended ]
reply to post by JadeStar
the inverse square rule is an equal frequency inhibitor , please cite your claim
reply to post by boymonkey74
Not likely, even if you were in that bubble, our broadcast signals would be indistinguishable from background noise. It is pure fantasy to believe that our broadcast signals would ever be picked up by another civilization. They'd have to be actively searching for the signals and even then they'd probably wouldn't find them.
I believe JPL is still receiving signals from Voyager? something like half a watt? (no, I don't mean the spacecraft with Gerry Ryan on board) Voyager is just about to enter the Oort cloud I believe? Roughly a light year from Earth.
This is all very good. But why haven't we received a television/radio signal/broadcast from the neighbourhood as outlined in this thread. The timeframe spans numerous stars/planets. Surely if we expect them to have received our broadcasts in this span then perhaps we could have expected to have been in receipt of any that they have sent?