[Milsurplus] Ferrite Loop Antennas

[Brooke Clarke]

Hi Hue:

They have small effective areas so are not optimal for weak signals.

The attic antenna descrebed by J Forster sounds good.  It might be improved by 
spacing the wires from each other about one wire diameter to lower self 
capacity.  Reasonating would give you a nice high Q antenna.  A problem might 
be the nulls.

Have Fun,

Brooke Clarke
http://www.PRC68.com
http://www.precisionclock.com
http://www.prc68.com/I/WebCam2.shtml 24/7 Sky-Weather-Astronomy Cam

> Date: Sun, 9 Dec 2007 20:51:47 -0800
> From: "Hue Miller" <kargo_cult at msn.com>
> Subject: Re: [Milsurplus] Re: Milsurplus Digest, Vol 44, Issue 19
> To: <milsurplus at mailman.qth.net>
> Message-ID: <BAY125-DAV13AAE14C5A4E6E7702EB8CE46B0 at phx.gbl>
> Content-Type: text/plain;	charset="iso-8859-1"
> 
> No one seems to be using a ferrite core bar antenna.
> Is there a reason for that, i am missing?
> Granted, antenna bar material i'm sure is mixed for the
> higher frequencies, but might be able to hack apart 
> some filter cores, or use metal from a high-fi type audio
> transformer? -Hue
> 
>