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[Towertalk] 4-square vs 40-2CD

 To: [Towertalk] 4-square vs 40-2CD richard@karlquist.com (Richard Karlquist) Mon, 8 Jul 2002 20:01:57 -0700
 ```I'll believe your test, but a better test is a simple dipole against a simple vertical. That way, implementation problems of the 4-square and Yagi don't confuse the results. This must vary with location. At my QTH, before building my 7 element vertical array, I A/B'ed a simple vertical against a 90 foot high inverted vee. Within the resolution I could get switching back and forth, these were interchangeable for me. Maybe the dipole really is 2 dB better, and I just can't measure to that resolution. I haven't tried it, but wouldn't be surprised if a dipole did start to get a substantial advantage at a really high height, like 140+ feet. >From all the positive press than 90 foot high beams on 40m get, I expected much more than I got with my vee at 90 feet. (Note: proper precautions were taken to avoid mutual coupling effects between antennas). Rick Karlquist N6RK richard@karlquist.com www.n6rk.com www.karlquist.com > -----Original Message----- > From: towertalk-admin@contesting.com > [mailto:towertalk-admin@contesting.com]On Behalf Of Dick Green > Sent: Monday, July 08, 2002 10:51 AM > To: CONTEST; Tower; YCCC > Subject: [Towertalk] 4-square vs 40-2CD > > > And the winner is... > > I just had the rare opportunity to compare two very > different 40m antennas > "side-by-side" and thought the results would be of > interest. I've had a 40m > 4-square with 60 buried radials per element for about five > years. Yesterday, > I put a used 40-2CD at the top of a 50-foot AB-577/GRC > portable guyed > military surplus mast (HD-73 rotor) and compared the two > antennas. There was > no contest at all: even at 50ft, the 40-2CD is 1-2 S-units > louder than the > 4-square. Assuming my 1000MP meter is calibrated for 6dB > per S-unit, that > translates to 6-12dB. I'm sure getting the 40-2CD up higher > would improve > these results. > > ```
 Current Thread [Towertalk] 4-square vs 40-2CD, (continued) [Towertalk] 4-square vs 40-2CD, Jerry Heron [Towertalk] 4-square vs 40-2CD, David L. Thompson [Towertalk] 4-square vs 40-2CD, Tom Rauch [Towertalk] Top loading an HF2V, Pete Goudreau [Towertalk] 4-square vs 40-2CD, Bill Tippett [Towertalk] 4-square vs 40-2CD, Guy Olinger, K2AV [Towertalk] 4-square vs 40-2CD, Jan Erik Holm [Towertalk] 4-square vs 40-2CD, Dick Green [Towertalk] RE: [YCCC] 4-square vs 40-2CD, David Robbins [Towertalk] 4-square vs 40-2CD, Jim White [Towertalk] 4-square vs 40-2CD, Richard Karlquist <= [Towertalk] Re: [CQ-Contest] 4-square vs 40-2CD, Milt Jensen@N5IA [Towertalk] 4-square vs 40-2CD, n4kg@juno.com