I HAVE A 33 FT VERT ON A ROOF ABOUT 20 FEET UP WITH 100 11 FOOT LONG RADIALS TIED TOGETHER AT THE PERIMETER WITH A 9:1 HB BALUN USE IT ON ALL BANDS THROUGH A TUNER WORKS GREAT ON 80 TOO ON 20 ITS GREAT IM SURE ITS 2 S UNITS DOWN FROM A BEAM BUT IT WORKS 73 Sent from my iPhone