Date: Wed, 25 May 2016 11:01:09 -0500
From: Courtney Judd <k4wi@k4wi.net>
To: K7LXC@aol.com
Cc: "Towertalk@contesting.com" <Towertalk@contesting.com>
Subject: Re: [TowerTalk] One of our own...
hey Steve, yes, I did enjoy the article about verticals/beach, very
educational! BUT, in the same issue of QST another article "If you can
hang a full-size vertical loop, then hang a dipole" really made me roll
my eyes. While I have never done any modeling, 50 plus years of playing
with various antennas leaves me with the opposite conclusion. A loop is
ALWAYS better than a dipole in my experience. I wanted to spend some
time on 160 some years back so I strung up a dipole at 110 ft with the
resonant point at 1840.00.... worked great.... all kinds of dx.... BUT
the 2:1 swr points were only 7.5 kz up and down... even with a tuner the
antenna preformed poorly beyond that. It was just un-satisfactory so i
pulled it down and replaced it with the 160 antenna I still use today. A
full wave loop fed at a lower corner, top at the same 110 ft point. I
did have to tilt it 15 deg from the vertical to get it in the property
lines but it works like a bandit. It is quiet and broad banded: 2:1 is
1800 to 1890 and works well over the whole frequency! I would NEVER
replace it with a dipole. Well, thats my 2 cents and I am sticking to
it! lol, 73's Cort K4WI
## 15 khz BW ? What did u use, 40 ga wire ?? The old f12 160m rotary
dipole,
which was 102 ft long... IE: LESS than HALF size, was 18 khz
wide...normal.
## if u had used 10 or 8 ga wire, your BW would /shoulda been a lot wider,
like
100+ KHZ. What did u use for a balun, if any, on the dipole ? IF you
only have
2 supports to hold up the full sized 160m dipole, that’s a loooong span.
You would need
some strong gauge copper weld or similar, or heavy gauge cu wire, to handle
the sag.
## Either way, your BW would be a lot more than 15 khz. Perhaps your swr
meter was
out to lunch on 160m ?
Jim VE7RF
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