SL Yagi- WUCF - W0WD Free Space Symmetric 89.900 MHz 10 6061-T6 wires, inches rfs = -22 ; org -24.75" - 22.00 des = 0.00 ; org 0.00" drs1 = 10.5 ; org 19.063" - 10.5" drs2 = 42 ; org 39.438 - 42.00" dia = .392 ; 25/64" dia = .392 dia1 = .375 ; 3/8" tubing dia for Dr1, Dr2 rfl = 31.5 ; org 31.813" - 31.50" dr1 = 28.75 ; org 23.188" - 28.75" dr2 = 29.5 ; org 23.188" - 29.50" len = 27.75 ; dr el half-length; org length = 27.75" sp = 1.824 ; dr el upside dipole spacing nsp = -1.46 ; dr el downside dipole spacing 1 0 -len nsp 0 len nsp dia 1 0 -len sp 0 len sp dia 1 0 -len sp 0 -len nsp dia 1 0 len sp 0 len nsp dia 1 rfs -rfl 0 rfs 0.0 0 dia 1 rfs 0.0 0 rfs rfl 0 dia 1 drs1 -dr1 0 drs1 0.0 0 dia1 1 drs1 0.0 0 drs1 dr1 0 dia1 1 drs2 -dr2 0 drs2 0.0 0 dia1 1 drs2 0.0 0 drs2 dr2 0 dia1 1 source Wire 1, center This antenna was modeled from measurements of the Stellar Labs 4el FM Antenna as delivered. AO analysis; 9.6db F/G 6.8db F/B 300 ohm feed impedance- 308 + j 13 SWR = 1.05:1.0 To receive the FM station from WUCF @ 89.9Mhz in Orlando,FL - 48miles away The antenna has a 300 to 75 stripline transformer built into the feed point making the transmission line (RG-6) a better way to send the signal to my FM tuner. Add three (3) ferrite line chokes (apx 1000 ohms) at the feed point to further attenuate the common mode signal. [FM4ELJD2.ANT]