- #1
jim77
- 11
- 4
I sometimes hear on astronomy documentaries that our earliest radio transmissions could be received by aliens in our galaxy. Assuming the stations power was 1000kw at 1 mile(wild guess on my part) the power of the signal at 1 light year would 1000kw/7 trillion squared. Is this right? If so wouldn't the power of the signal be so extraordinarily low even at 1 light year(let alone the 50 or so they claim) as to preclude any possibility of being detected and interpreted.
sincerely
sincerely