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Re: Topband: Low frequency RX antenna

To: <k1ep@arrl.net>
Subject: Re: Topband: Low frequency RX antenna
From: "Tim Duffy" <k3lr@k3lr.com>
Date: Mon, 30 Sep 2024 17:44:13 -0400
List-post: <mailto:topband@contesting.com>
Hello Ed

There is very little interaction between nearby loops. We are studying
interlaced loops that are 90 degrees to each other for four azimuth
coverage. I would keep the loops at least 25 feet away from other radiators.
Also be careful of RX overload from nearby TX.

73
Tim K3LR

-----Original Message-----
From: Topband [mailto:topband-bounces+k3lr=k3lr.com@contesting.com] On
Behalf Of Ed Parish
Sent: Monday, September 30, 2024 6:59 AM
To: Tim Duffy
Cc: topband
Subject: Re: Topband: Low frequency RX antenna

Thanks Tim.  I assume you have three fixed loops. What, if any, interaction
is there between loops? That is, does the close proximity of one loop
affect the directivity of the other loop? Do you suggest a minimum distance
between loops or other  potentially resonant structures such as towers?

On Sun, Sep 29, 2024, 23:20 Tim Duffy <k3lr@k3lr.com> wrote:

> Greg, W8WWV has done some new work on the VE3DO loop.
>
> I use 3 of them here at K3LR.
>
> Greg's latest paper is here:
>
> http://www.k3lr.com/engineering/VE3DO/OptimizedDOLoop.pdf
>
>
>
> 73
>
> Tim K3LR
>
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