Interesting. That makes sense. I have my antenna on the roof of my one story house. I don't have a problem with power, it's line of sight. In fact I have my repeater output level turned about half way. (I don't have a way to measure output) Tried to match input to output. No need to blast 50 watts when I can only hear 5 watts a mile or two out. http://i.imgur.com/nkiBlfs.jpg I think unless I get the antenna up higher than two story houses in the neighborhood there is not much point of going higher because of line of sight. I'm not sure I want to invest in a TV tower yet.