http://elecraft.85.s1.nabble.com/KX2-Antenna-Curiosity-tp7655612p7655634.html
another tuner than the KAT500, for 160M. Average height was about 35'.
> I'm having great success with a horizontal center-fed "dipole" that has been sized (360 feet long) to be an Extended Double Zepp (4.7 dbi gain) and cut for the low end of 80 meters. I feed it with 600 ohm "True" Ladder Line from a Balun Designs Hybrid Balun (1:1 Current and 4:1 Voltage all in one case). A short run of coax from the balun to my KAT500, and I am in business at any frequency on 160 - 6 meters.
>
> It's oriented to be an effective NVIS radiator in a N-S pattern on 80m, by design, and to have major lobes on the other bands in other directions - also by design. For me, it's the most efficient and effective way to utilize our lot space (400 feet clear) and still be "under the radar" in our HOA.
>
> Birds seem to like it, and I find that it seems to be especially attractive to Hummingbirds, my XYL's favorites. A win-win, in my book.
>
> 73
> Lyn, WØLEN
>
>
> -----Original Message-----
> From:
[hidden email] [mailto:
[hidden email]] On Behalf Of Al Lorona
> Sent: Thursday, October 10, 2019 3:25 PM
> To:
[hidden email]; David Gilbert
> Subject: [Elecraft] Center-fed antennas
>
> My experience with single vertical or sloping wires is exactly the same as AB7E's. I have, over almost twice as many Field Days as Dave, come to a similar conclusion, with the slight difference being my preference for an "all-band dipole" fed with balanced line. This obviates the balun and reduces feedline loss to negligible, so obviously I am maximizing efficiency at the expense of any other possible advantage. (I can usually hear much better than I can be heard... so thus far this has been a valid decision.)
>
> To sum up what I and what I think Dave are saying, you can't beat a horizontal, center-fed wire up as high as you can get it. Its simplicity, the flexibility it gives you to QSY (with a good tuner), and its high efficiency are almost unbeatable.
>
> As a side note, the center-fed horizontal wire I have used here at home is totally non-resonant. I don't even know how long it is. Once you give up the obsession with resonant antenna length, you gain a huge freedom of choice.
>
> In the bottom of the sunspot cycle, these advantages are somewhat reduced because an op, especially on Field Day, might opt to forget about any band higher than 20 meters -- and these days even 20 is questionable. This means you can probably make do with coaxial cable and a balun for operation on 2 or 3 bands but the general idea still holds.
>
> Al W6LX
>
>
>> Yes, a center fed normal dipole with the middle (high current portion)
>> higher off the ground (say 50 feet for 40m) and a common mode choke at
>> the feedpoint would almost assuredly perform better.
>>
>> 73,
>> Dave AB7E
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