Hi Joel,
Other than the three Magic T's, what other specific mods have you made to your
8-circles?
Adding a T50-2 toroidal inductor and a BNC connector at the 50 ohm tap makes a
quick job of adjusting resonance to exactly 1840 kHz.
Much more work is planned later this year, building switchable 8-circles for
160 and 80 meters.
Using one inch rebar for the base makes that job a snap, especially in my case
where I must completely remove the antenna from my borrowed field every year
and reinstall it in October. The rebar can be easily removed with a sledge
hammer.
I discovered that I couldn't unzip my 16 AWG speaker wire when its cold, I was
breaking wires! No problem at all unzipping it at room temperature.
Tks for all of your help!
73
Frank
W3LPL
---- Original message ----
>Date: Sun, 3 Feb 2013 06:29:18 -0600
>From: Joel Harrison <w5zn@w5zn.org>
>Subject: Re: Topband: New 160M high performance receiving antenna at W3LPL
>To: donovanf@starpower.net
>Cc: topband@contesting.com
>
> Frank - Good stuff and very glad you made public your work on
> the array.
> It is good to see the array is working very well at W3LPL. I
> continue to have excellent performance from both of my BSEF
> arrays (160 & 80 meter versions).
> Robye (W1MK) and I had several conversations following
> publication of my work on BSEF's which resulted in use of
> Magic Tee's and a few other feed point mods.
> 73 Joel W5ZN
>
> On Fri, Feb 1, 2013 at 11:00 AM, <donovanf@starpower.net>
> wrote:
>
> My new 160 meter Broad Side - End Fire (BSEF) receiving
> array is now in use and performing extremely well,
> significantly better than my 900 foot Beverages and full
> size 4-square transmitting antenna.
>
> Like most of us who live in developed areas, my RFI
> environment has significantly degraded with the lack of
> effective RFI regulation in recent years. Plasma TVs,
> ubiquitous poorly filtered switching power supplies and
> increasly popular high efficiency motors are steadily
> raising our noise floor. With this new antenna 160 meters
> is delightfully quiet again at W3LPL!
>
> Thanks to W8JI, W5ZN, N4HY and W1MK for their efforts in
> designing, optimizing and publishing the details of this
> wonderful high performance receiving antenna. The BSEF
> array is now connected to the 160 meter input to my CW
> Skimmer, it now has significantly better sensitivity than
> when it was connected to my 900 foot NE Beverage.
>
> The description and photos of my new BSEF array are here:
>
> http://pvrc.org/bsef/bsef.html
>
> 73
> Frank
> W3LPL
> _________________
> Topband Reflector
>
> --
> 73 Joel W5ZN
>
> www.w5zn.org
_________________
Topband Reflector
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