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Re: [TowerTalk] Antennas for 80m

To: towertalk@contesting.com
Subject: Re: [TowerTalk] Antennas for 80m
From: Rik van Riel <riel@surriel.com>
Date: Sat, 23 Apr 2011 12:10:24 -0400
List-post: <towertalk@contesting.com">mailto:towertalk@contesting.com>
On 04/23/2011 11:48 AM, Steve Hunt wrote:
> Looks like you would have plenty of room for an 80m Inverted-L with the
> vertical section at the far end of the yard away from the house and the
> horizontal section running back towards a tie-off point on the house. Of
> course, you would need to get some radials down.
>
> You even have enough horizontal length to make it slightly longer than a
> 1/4 wave - that would raise the radiation resistance and improve the
> efficiency if your radial system is not great. A fixed matching network
> at the feedpoint would fix the VSWR on the coax back to the shack.

Another option to increase the efficiency is to raise the
point of maximum current well above ground, by using a
K2LQ double L.

http://www.yccc.org/Articles/double_l.htm

Whichever is easiest (inverted L with partial radial
field or double L) depends on your specifics.

-- 
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