Fwiw, on 80M I have a version of the K1WA: 4 equal-length coax lines, run
from a select-one-ground-the-rest coax switch next to the rig, out
underground to 4 sloppers (sic) NE-SE-SW-NW with (R&L-brand) current baluns
at feedpoints. In my case, tweaking the line lengths to around 150' gave as
much as 3-4 S-units F-B and 1-2 S-units F-S, which is enough "good pattern"
for me. Dunno what the gain is, if any. It's still tough to crack
I-95-corridor pileups from out here in flyover coutry, but it's noticeably
easier than with a single slopper, high dipole, or delta loop. Best I've
been able to do so far with one tower on an acre lot.
73 Dave W8FGX
Oh, yes, I have had to rethink the mechanics of the parasitically-coupled
30M wires. Holding the spacers in place was too kluge-y even for me. I'll
gbtu real soon now.
----- Original Message -----
From: "Steve Jarrett" <k4fj@k4fj.com>
To: <towertalk@contesting.com>
Sent: Monday, April 20, 2009 1:17 PM
Subject: [TowerTalk] Sloping Dipole question
>I have seen K1WA's excellent article in the Antenna Handbook for years
> regarding sloping half-wave dipole arrays. His design switches both
> the center conductor and braid for each feedline.
>
> Is it really important to switch the braid?
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