My old 4 bay bow tie antenna worked good for 2.5 years but lately signal breaks up pretty bad on certain weak stations. Field strength meter was reading 45% to 50% on channel 12 with the old antenna, now it reads 100% with the new solid bow tie antenna. I cut the 5"x10" bow tie metal pieces from the metal case of a junk microwave oven. The reflector screen is 1/2" hardware cloth 24" wide, 38" tall. Now I have 55 stations FREE TV again. All I did was replace the #10 copper wire bow ties with solid metal bow ties.