VK3DIP YAGICAD FILE CHEN + CHENG 6 ELEMENT 06-15-1991 IEEE TAP AP-23 A length and spacing 'Optimized' Yagi 12.34901 17.42322 24.88567 -16.47625 6 .476 0 .006738 .452 .25 .006738 .436 .539 .006738 .43 .9450001 .006738 .434 1.268 .006738 .43 1.69 .006738 299.79