[Lowfer] Help with loop please

[don israel]

Warren, thanks for the great response.  I think I will start buying 
parts...haha.  Thanks again.

Bob





----Original Message Follows----
From: k2ors at comcast.net
Reply-To: "Discussion of the Lowfer (US, European, &  UK) and MedFer 
bands" <lowfer at mailman.qth.net>
To: lowfer at mailman.qth.net (Lowfer on QTH.Net)
Subject: Re:[Lowfer] Help with loop please
Date: Wed, 10 Oct 2007 22:35:23 +0000

Don,

      For a short whip to be effective you need an extremely high input 
impedance preamp attached directly to the whip (so called 'e-probe' 
antenna). One of the best is the AMRAD active antenna:

http://www.arrl.org/tis/info/pdf/0109031.pdf

      This is a good article and gives some background on the design 
objectives of an active or e-probe antenna.

       Keep in mind that the whip will be omni-directional, if you live in 
an urban environment with a high noise level you will probably be better 
with off with a loop so that you can null out some of the noise sources.

--
73 Warren K2ORS
WD2XGJ     136-140kHz
WD2XSH/23 505-510kHz
WE2XEB/2   160-189kHz
WE2XGR/1 505-515kHz

FN42hi
http://www.w4dex.com/wd2xgj.htm
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