While I agree that raising or lowering an antenna will have the greatest effect I must respectfully disagree regarding tilt. I tried mounting the antenna at numerous heights at a number of locations. In our case tilting the antenna upward toward the hill meant the difference between receiving or not receiving many of our channels. All situations are different. TV reception is a mix of proper equipment, location and even a bit of luck. Tilting may or may not help but you never know unless you try.