From my Post #169: In Post #180, ss Watters questioned the validity of the above. To support my POV, my Post #193 provided the following: In Post &197, Russ Watters posted the following: The above indicates that you have little understanding of mathematics (& perhaps not much relating to physics). Wattage is irrelevant to a discussion of directional error. Wattage & the sensitivity of the receivers does not matter if the signal misses the receivers. 1/3600 of a degree was an assumed error in direction. Making assumptions for use in a mathematical analysis is common practice. Idoubt that you understood the calculations I provided. Perhpas you understood & knew you could not dispute them. : Russ mentioned the Aricebo message, which seems like another SETI-like experiment. From Wikipedia: Aside from questioning his knowledge of Mathematics & Physics, I wonder if Russ actually reads or understands the citations he provides. Note that the Aricebo folks admitted it was merely a test display of their their equipment rather than an attmept at interstellar communication.