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Cecil Moore wrote in message ...
bb wrote: First... what is phasing of verticals. Essentially the same as phasing of horizontal elements. If you turn a 40m horizontal Yagi on it's side and bury half of it under a good ground plane, you have a vertical beam. My 40 m dipole is only 30' up...would vertical phasing be an improvement? A single vertical would be an improvement over a dipole at 30 ft if working dx. Two phased would be even better. If you aren't working dx, but more close in stations within a few hundred miles, you would be better off phasing parallel dipoles for gain. A bit of gain nearly equal to a 2 el yagi, and about an average 20 db f/b. Maybe, maybe not. At my QTH, the vertical noise is 2 s-units higher than the horizontal noise rendering any vertical antenna virtually unusable. No vertical that I have ever tried could overcome that -10 dB disadvantage. But your QTH could be entirely different from mine. It is possible, but not likely, that your vertical noise is lower than your horizontal noise. If you are using the vertical for long haul, the increased received noise is a non issue. The signals will override the noise. IE: the noise might be 2 s units higher, but the signal increase over the low dipole will likely be more than that. The vertical still wins overall. Noise was never an issue when I used mine. The increased signals always overrode it by a good amount. You didn't see this because you didn't use yours for long haul. Many times my GP was nearly as quiet as the dipole. If there is no vertically polarized local noise, there is little difference between the two. At the moment I have three antennas on 160. An inv L, a top load vertical, and a Z dipole. All receive about equal noise as far as S meter reading. The dipole is just as noisy as the other two on that band. Only my indoor 16 inch small loop is really quiet...:/ MK |
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