NEC-LIST: Modeling ferrite loop ant

From: Rob <rob_at_email.domain.hidden>
Date: Sat, 30 Nov 2002 06:14:02 -0800

Does anyone know how a sim of this could be done?

Perhaps WIPL-D???

I have a very large magnetically loaded loop. I took 30 Amidon
FT184-15 cores (may even be larger cores, I forget) and glued them
together to make a rod, inside an ABS tube. Then I added two windings
that each connect to 1/2 of a giant (>2000pF) dual gang broadcast cap.
A third very small winding is the output, and it is connected to a
series variable cap to get me to 50ohms. The antenna is very well
balanced.

Unfortunately, even though electrostatically shielded, I found that this
loop had to be way far away from the house to keep it from picking up
magnetic signals in the near field, like light dimmers, computers, etc.
But once away from the house, I could hear lightning crashes on 160M
that I couldn't hear at all on a 1/4 wavelength vertical ant.

Rob.

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Received on Sat Nov 30 2002 - 14:19:14 EST

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