Topband: 160m Sloping Vertical Antenna?
jbwolf at comcast.net
Wed Dec 24 14:10:14 EST 2014
I used to use a similar method on 80 meters.
Why not feed it (them) at the top?
Jim - KR9U
From: Topband [mailto:topband-bounces at contesting.com] On Behalf Of Jim Brown
Sent: Wednesday, December 24, 2014 1:46 PM
To: topband at contesting.com
Subject: Re: Topband: 160m Sloping Vertical Antenna?
On Wed,12/24/2014 10:29 AM, Ed via Topband wrote:
> Trying to figure out how to best utilize my 106' tower for 160m. The
tower sits on a small hill so the downside of the tower is sloping. If I
hang a wire off the top, I can bring the other end to the ground and feed it
at the bottom. I can ran numerous radials from there.
That's exactly what I'm doing -- my tower is 115 ft with roughly 7 ft of
mast above it and a 3-el SteppIR. I have sloping wires on two opposite
sides, supported from the tower just below the rotator with a 10 ft section
of 4-in PVC conduit. Each wire has its own set of 4 radials elevated about
18 ft. The tower, which is grounded, has a dozen or so radials laying on the
With this configuration, the tower will act as a reflector, yielding about 6
dB front to back. How much GAIN you get will depend on your radial system
and the quality of your soil. I started with radials elevated only a few
feet, and gain was poor. On the advice of N6BT, I raised them and gain
73, Jim K9YC
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