K1FO's 22-Element 432-MHz Yagi
Free Space Symmetric
432 MHz
22 wires, millimeters
14 30 -171.0 0 30 171.0 0 .1875"
14 134 -168.0 0 134 168.0 0 .1875"
14 176 -158.5 0 176 158.5 0 .1875"
14 254 -153.5 0 254 153.5 0 .1875"
14 362 -150.5 0 362 150.5 0 .1875"
14 496 -148.5 0 496 148.5 0 .1875"
12 652 -146.5 0 652 146.5 0 .1875"
12 828 -145.5 0 828 145.5 0 .1875"
12 1020 -144.5 0 1020 144.5 0 .1875"
12 1226 -143.5 0 1226 143.5 0 .1875"
12 1444 -142.5 0 1444 142.5 0 .1875"
10 1672 -141.5 0 1672 141.5 0 .1875"
10 1909 -140.5 0 1909 140.5 0 .1875"
10 2152 -140.0 0 2152 140.0 0 .1875"
10 2403 -139.5 0 2403 139.5 0 .1875"
10 2659 -139.0 0 2659 139.0 0 .1875"
10 2920 -138.5 0 2920 138.5 0 .1875"
10 3184 -138.0 0 3184 138.0 0 .1875"
10 3452 -137.5 0 3452 137.5 0 .1875"
10 3723 -137.0 0 3723 137.0 0 .1875"
10 3997 -136.5 0 3997 136.5 0 .1875"
10 4272 -136.0 0 4272 136.0 0 .1875"
1 source
Wire 2, center

From QST, Dec. 1987 & Jan. 1988. MININEC was used during the development of
this antenna. K1FO says the forward gain is 15.7 dBd, the F/B is 22 dB, and
the first sidelobe is down about 17.5 dB. Dimensions for a nonconducting boom
were used here.