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[TowerTalk] New Discussion: Dipole Secrets Part II

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Subject: [TowerTalk] New Discussion: Dipole Secrets Part II
From: (Bill Hinkle)
Date: Tue, 28 Apr 1998 22:58:39 -0400
You will find this hard to believe, I did, so I worked him again to be
sure. I worked 9X/RW3AH on 75 with a dipole that is at 20 feet off the
ground from WV! I was so sure it was not real, I posted a message to the
Cluster asking for replys from people using Four Squares and Beverages if
in fact the signal was coming from 9X. I got back a few replys confirming
it was 9X/RW3AH, I sent the card off with a 20 m contact and sure enough
I have 9X confirmed on 75. 
When I lived in MD, I had a 75m V @ 55 feet and a 1/2 wave sloper @ 88
feet. All I have now is a 1/4 sloper on a 54 foot crank-up here in WV.
The most recent cards to come back are 8Q7AA and KH2D on 75. Been working
DX on 75 since 95, missing the end of 96 and begining of 97 because of
the move. Have 152 countries confirmed on 75 with my very limited
antennas. So, it can be done. A pair of 3-500Z's help.
                           73, Bill KB3AUG
                                  Riverton, WV
>Assuming we're talking 80-m here, I wouldn't bother with the low 
>except for regional coverage where a high radiation angle is a Good 
>Low, horizontal wires aren't going to put much energy below 30 degrees 
>vertical angle.
>If limited to a single support such as a tower with a tribander on it, 
>half-sloper can often be made to work very well.  I have two pointed 
>opposite directions, fed with coax and a remote antenna switch.  I am
>apparently lucky in my choice of feedline lengths because I see a
>significant f/b ratio, depending on arrival angle.  The antennas play
>great - QRP from 7-land to V5 for example - and were easily tuned with 
>help of an MFJ-259 and two thirteen-year-old rope holders.
>If you have a tree to play with, you might consider a quarter-wave
>wire vertical with a couple of elevated radials.  If you have two 
>trees, a
>bobtail or half-bobtail will work quite well.  One can bend the ends 
>the vertical elements of the bobtail-type arrays if the vertical 
>isn't a full 1/4-wave.  Preserve symmetry and it will work fine.
>Also, the HF2V's will do pretty well if you give them appropriate 
>planes and pay attention to the details when putting them together.
>This kinda got off the topic of dipoles, but some of us are pretty
>dangerous with a keyboard...
>73, Ward N0AX
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