Cellular Phone Spectra and Earth's SETI Invisibility
astrobio writes: "How long will the Earth's technology be detectable to other worlds? From an article today by the Chairman of the SETI Institute: 'Not long, with shared transmission spectra. To transmit ever-increasing amounts of information, portions of the spectrum must be shared. This is only possible if signal strengths are reduced so that transmissions on the same frequency do not interfere with one another. The textbook example of this paradigm is the cellular phone system. This signal reduction means we are well on our way to becoming invisible.'"
Maybe now the three-eyed, ten-tongued aliens of Vega will be able to get some rest once we turn the noise down.
Bad intergalactic neighbors, that's what we are.