Do you have a cement basement? If so, that would explain it. The major ingredient in most cement is Tricalcium silicate which makes the basement like a echo chamber.
Also, Furry, it depends on how deep were talking. I don't mean basic 802.11. I mean 1st or 2nd layer. The different antenna types and their standards. The different effects of electro magnetic energy in general. The circuitry. The raw science under it. I don't even know enough to know how much I don't know, but I major it's alot. When I see a 40 page website with charts, circuitry diagrams, and words I have never even SEEN before, I know I am not in Kansas anymore. Its those times I love though. Heh!