Labels:bulletin board | clock | crt screen | monitor | telescope OCR: 0.5 DIPOLES ENG 0.45 G-P VERTICALS RESOM 0.4 0.35 100 10k 100k WAVELENGTH/DIAMETER RATIO Figure 3. Resonance length factor dipoles and monopoles func- tion of its length to diameter ratio For quarter-wave verticals over infinite ground, use the dipole curve with twice the monopole length diameter ratio "Half wave dipoles are always shorter than the free- space one-half wavelength at resonance.