Another way to increase the bandwidth of a dipole is to run a wire next to it,
slightly shorter than the dipole. (if I now remember it right). Due to coupling
between the dipole and the wire you get a "double dip" in the SWR curve with
resulting wider coverage. It might be a close by rain gutter as Dave, K1TTT
said. It will not necessary lead to higher losses though.
Hans - N2JFS
-----Original Message-----
From: Tom Osborne <w7why@frontier.com>
To: Hans Hammarquist <hanslg@aol.com>
Sent: Mon, Jul 21, 2014 12:32 pm
Subject: Re: [TowerTalk] Fwd: 80 meter dipole
HI Hans
It usually works pretty well. During the WRTC contest last week, I was
able to work a bunch of them with this antenna. It just puzzles me why
the SWR bandwitch is so wide. Shouldn't be that way. 73
Tom W7WHY
On 7/21/2014 3:48 AM, Hans Hammarquist via TowerTalk wrote:
> Do you only find very weak signals? If not, try it. I found several parallel
wires to widen the bandwidth. Wound myself a helix once for 10 meter and
managed
to make it cover the entire 10 meter.
>
>
> Hans - N2JFS
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