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#7
June 1st 06, 09:32 AM
posted to rec.radio.amateur.antenna
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RF grounding methods for sailboats: A Summary
chuck writes:
Jon KÃ¥re Hellan wrote: We don't seem to have widely used, descriptive names for these configurations. Cecil is correct, and perhaps the OCF referred to should be called an OCF "L". The vertical radiator with a single, elevated, horizontal, resonant "radial" perhaps should be called an "L" dipole. On inspection, either antenna, on a boat with a tuner at the feedpoint, could be mistaken for the other. You could tell the difference only by observing how the antenna is operated. If the antenna is operated only on those frequencies for which the horizontal element is an odd multiple of a 1/4 wavelength, we would call the antenna an "L" dipole (or whatever). If that same antenna were operated not only on those frequencies, but on all others (HF spectrum) as well, we would call it an OCF "L". But if, on inspection, the antenna has multiple resonant radials, that would unambiguously differentiate it from the OCF. Whenever the two antennas are physically identical, they will obviously operate identically. Make sense, Jon? Sorry for the confusion. Sure. Thanks. |
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