Is E.T. Eavesdropping on Us?

Without going into too much technical detail, cell phones emit a weak signal that can be detected by a nearby tower, which in turn emits a much stronger signal to send the transmission along. There are very few towers in the Pacific Ocean nations, compared with a huge number in the U.S. And there are more towers in the Northern Hemisphere than the Southern, so our alien friends would see a different signal depending on where their home star is located in the sky. If the alien tech is the same as ours - with a radio telescope as big as the 100-meter Green Bank Telescope in West Virginia - our overall cell-phone signal is still far too weak to be detected from any of the three stars. [Extracted from the article]