Hi Ken,
Small diameter "magnetic" loops such as the Pixel can be very
effective in nulling a single vertically polarized local RFI source,
fortunately most local RFI sources are vertically polarized. Their
deep narrow beamwidth null is also very useful for determining the
location of an RFI source.
A small diameter loop provides no useful directivity for skywave
propagated signals (such as the atmospheric noise in VO1HP's
video) because the polarization of the incoming wave is constantly
changing.
73
Frank
W3LPL
----- Original Message -----
From: "Kenneth Grimm" <grimm@sbc.edu>
To: "Bruce" <k1fz@myfairpoint.net>
Cc: "Topband" <topband@contesting.com>
Sent: Monday, April 25, 2016 3:25:04 PM
Subject: Re: Topband: Pixel vs BOG
Wow! The BOG blows the Pixel loop away. The loop sounds like my
vertical! I wonder if there might be a feedline problem? Surely the loop
isn't meant to be that noisy.
73,
Ken - K4XL
On Mon, Apr 25, 2016 at 9:55 AM, K1FZ-Bruce <k1fz@myfairpoint.net> wrote:
> Mixed reviews.
>
> Pixel loop antenna vs 200 foot BOG antenna at VO1HP.
> www.youtube.com/watch?v=GTXvcEwgUsU
>
> 73
>
> Bruce-k1fz
> www.qsl.net/k1fz/bogantennanotes/index.html
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