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Re: Topband: Inv L Config

To: 160 Meter Reflector <topband@contesting.com>
Subject: Re: Topband: Inv L Config
From: Charles Shaw <chasshaw@leaco.net>
Reply-to: chasshaw@leaco.net
Date: Tue, 6 Dec 2016 13:05:40 +0000
List-post: <topband@contesting.com">mailto:topband@contesting.com>

On 2016-12-06 04:37, Jerry Keller, K3BZ, wrote:
or is it enough to "fatten" the vertical
(radiating) section ?  How much BW will 3" diameter spacers give me?

About 16 years ago I modified an ordinary inverted L (with c60 feet vertical) using 4 vertical #14 wires spaced in a one-foot square--hoping to broaden the TX band width. No sign of improved bandwidth could be observed! I was using the same groundplane of thirty-six 65-foot-long wires about 2 inches into the soil and the same horizontal loading-wire.

Then I built a 86 foot tall, T-topped vertical with a 4-wire gull-wing groundplane at 20 feet which I'm still using. Its bandwidth is a little better than the L had.

73, Charles - N5UL
Hobbs, NM

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