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Re: [TowerTalk] Feeding a Delta Loop

To: "Tower and HF antenna construction topics." <>
Subject: Re: [TowerTalk] Feeding a Delta Loop
From: Rob <>
Reply-to: "Tower and HF antenna construction topics." <>
Date: Wed, 3 Feb 2010 18:12:01 -0700
List-post: <">>
I have an 80m Delta Loop on 80 which I feed 1/4 wl from the apex with  
a 4:1 Balun.  Works well, and definitely has the low angle compared to  
an inverted V which I also have.  Bottom of the loop is about 12 feet  
off the ground which is also important.

Good luck!


On 3-Feb-10, at 1:28 PM, Stuart Browne wrote:

> I'm looking at installing a Delta Loop for 80 m. on my 75' tower.  
> The low
> end of the triangle will be about 20' off the ground ( the tower is  
> on my
> rooftop (flat).  I know that the conventional wisdom is a feed point  
> in the
> center of the lower side of the equilateral triangle which is around  
> 50
> ohms.  ON4UN describes feeding a DL at 1/4 wl from the Apex of the  
> triangle
> to achieve a 23 deg take off angle (which is what I'm after).
> I'm looking for any "real world" feedback as to the pros/cons of  
> feeding a
> DL at the apex, lower center, corner or 1/4wl from the apex.
> 73's,
> Stu
> WH6H
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