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Jerseyj wrote:
Wonder If anyone has any experience with this vertical...the specs says it works without radials,I'm just wonderng how well. Jerry Have owned and used an Vectronics 895 which identical to the MFJ 1796 which in turn is the 40 meter through 2 meter antenna from MFJ. It needs no radials since it is essentially a shortened, vertically-mounted dipole with a sort of funky looking porcupine-like device on each end to load it. When we were thinking about selling the house a 10 years or so ago I took my roof top tower and yagi down. When we decided not to sell I wanted to get on the air with something and put up the Vectronics on a pole supported at the house eaves. It stood like that for about five years. No problem with wind damage during that time. My opinions. 1. It is adequate though awkward to tune the antenna for HF well. You have to adjust the length of the porcupine quills, so to speak. (My solution -- tune as close as is reasonable and then use an antenna tuner). 2. Performance is typical of a vertical that is okak keeping in mind the old adage that a vertical is an antenna that radiates equally poorly in all directions. 3. The 6 and 6 meter antenna pieces are threaded aluminum rods that are tuned by screwing them into steel nuts. Aluminum on steel binds and no lube that I found let me adjust them adequately. Anyway, took the Vectonics now and have the yagi tribander back up, plus a G5RV. Jim, WD9FRF |