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Re: [Antennaware] 2-element delta loop array close to ground

To: <>, "Pete Smith" <>
Subject: Re: [Antennaware] 2-element delta loop array close to ground
From: "Guy Olinger, K2AV" <>
Date: Mon, 1 Dec 2008 11:06:25 -0500
List-post: <">>
In order for me to see what is going on, I need to run the director 
configuration with AO Pro, which is the only tool that will allow me to 
watch what is changing according to a formulaic progression of wires and 
termination points.  This is an interesting one with an audience and some 
benefit apparently.

Preparation for WW, SS, etc., kept me busy elsewhere.

I'll give this a shot.

73, Guy.

----- Original Message ----- 
From: "Pete Smith" <>
To: <>
Sent: Friday, November 28, 2008 9:55 AM
Subject: [Antennaware] 2-element delta loop array close to ground

>I am modeling a 20M 2-element delta loop array with the apex up, 12-foot
> spacing and the bottom about 35 feet above ground, fed at a lower corner,
> using Multi-NEC and NEC2.  In driven/reflector configuration, it looks
> about like what I'd expect - 6 dBi gain and 14-18 dB F/B.  But in the
> driven/director configuration, there isn't much directivity at all,
> regardless of frequency.
> Does this square with others' experience, or am I messing something up in
> the model?
> 73, Pete N4ZR
> the World Contest Station Database is back...
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