If you have an 80M dipole, you can make it a nifty multiband antenna by
making it a single wire feed "T" antenna (see attached dwg).
Much info on Google, but attached is a suggestion from the Drake MN2700
tuner manual, a classic old antenna design, was the easiest way I could show
you the idea. There's nothing magic about the Drake (altho they made nice
equipment), and the tapped coil which shows in the schematic is a 4:1 balun.
There was nothing magical about the Drake balun either, and a more hefty 4:1
will spare you grief at 160M, especially if you are running QRO with a poor
match. This design will need a transmatch for best performance.
There are many variations on this but it gives you some options if you want
to avoid some of the pitfalls of the antenna you describe.
Good luck and 73
dan
k0dan
-----Original Message-----
From: Larry Banks
Sent: December 16, 2014 19:16
To: YCCC Mail ; Ham - Tower Talk
Subject: [TowerTalk] Adding 160 to an 80M dipole?
Hi all,
The ARRL 160 contest got me interested in 160. I would like to add loading
coils and additional wire to my 80M dipole at my QTH in Maine to see how
that might fly. (It would make it an 80/160 dipole.) Yes – it won’t fly
very well, and be narrow band, but it will be easy to do and better than
nothing. I have looked in the ARRL Antenna Book and Low Band DXing and have
found little of help. I do have one article from July 1992 QST by W8NX that
looks to be helpful.
Any ideas or pointers to how this might be accomplished?
73 -- Larry -- W1DYJ
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