I agree that radio waves haven't changed much but since i put the square shooter in @ our office my HD stations certainly have, they all have 90 to 100% signal strength and don't drop out like they did before when we were using the old "clothes hanger" Its still up there also but i have a new friend in that little guy. OH who am i kidding it's an antenna next week i'll hate it when it doesn't work, you know late on a friday night, big game, friends coming over ................. sorry had a flashback.