tmsmp@homxb.UUCP (T.SWIFT) (05/10/85)
I am interested in building a directional antenna to replace my trap vertical. The ARRL Antenna book contains plans for a log-periodic dipole array. This caught my attention as an alternative to stacked monoband beams. I have obtained the original QST article (Nov. 1973) and will try to contact the author. Does anyone have any experience with or knowledge of this type of antenna? Does any commercial manufacturer offer one? If not, why is there no commercial interest? Is there a fatal flaw in the design? The QST article states that the author uses a transmatch to "eliminate possible harmonic radiation caused by the frequency-independent nature of the array." Is interference a major consideration? Any help is greatly appreciated. Thanks Tom Swift KD2MF (formerly WA2JEH) AT&T Information Systems Holmdel homxb!tmsmp 201-949-3374 (W) or 201-577-6945 (H)