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Cecil Moore wrote in message ...
Mikey wrote: Yes, phased verticals will outperform a dipole. Some phased verticals will outperform a dipole, depending upon how one defines "outperform". A dipole at a decent height can have a 7 dB gain over a 1/4 WL monopole. A two-element phased vertical cannot equal that figure over average ground. Reference: Fig 10, Chapter 8, The ARRL Antenna Book, 15th edition. The maximum gain figure for a two-element phased vertical is 4.7 dB over a 1/4 WL monopole. The average is about 3 dB depending on spacing and phasing. That same graphic is Fig 11, Chapter 8, on the ARRL Antenna Book CD, ver 2.0. EZNEC sez my simple 130 ft. dipole at 40 ft. has a gain of 10.8 dBi on 10m with a take-off-angle of 12 degrees. It would take quite a vertical array to equal that. (Then I would have to somehow overcome a +10 dB vertically polarized noise level. :-) Cecil, It is extremely hard to follow this thread as many comparisons are vague i.e. frequency, length of antenna e.t.c. You are not helping things when you talk of a 130 foot dipole and its use on ten meters. I think calling that antenna a dipole is misleading to say the least For ten meters I would call it something more than a dipole. To talk of a simple dipole having 10 db gain on this group is more than misleading it is an attempt to confuse. Can you imagine me entering the 160 metre discussion and discussing my collinear dipole in the vertical position as just a "simple " dipole and with no buried ground plane at that? If you are going to continue to compare antennas then the info must be factual and completely comparible or you do not have a legit comparison. I came in late but I read all the postings on this thread and the comparisons are all over the place and hard to follow, so back to what I was doing which is more productive. Have fun, will pop back later when the postings get to over 200. Art |
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