An interesting observation I've made recently is that AT&T B30 range is a lot worse than Sprint B41 range. At a tower I frequent, AT&T and Sprint/Clear are set up with the same sector alignment, the Clear cells being a few inches above the AT&T ones. AT&T's B30 dies when Sprint B41 is still at -102 to -108. Is this by design or is AT&T's equipment not that great or what?