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LF: LF Antennas

To: [email protected]
Subject: LF: LF Antennas
From: "g3ldo" <[email protected]>
Date: Tue, 3 Apr 2001 23:09:02 +0100
Reply-to: [email protected]
Sender: <[email protected]>
In an attempt to improve the reception on 136kHz by cutting down the Loran
racket I have, over a period of time, been experimenting with LF receiving
loops. I now have one that works really well. It was used for the first time
in a 'reverse' crossband (136kHz/3.5MHz) QSO with VE1ZZ on 21st Feb.
Details of the construction and pictures are on the site shown below - click
'An efficient LF receiving loop'.

Recently, Mike, G3XDV, elevated the loading coil on his 136kHz Marconi. This
reduced the antenna current but apparently improved the efficiency. I am
researching material for a mobile handbook and was looking for a graphic way
of illustrating why elevating the loading coil improves efficiency. What I
have written is shown and illustrated on the site (I am sure that it must
have been all done before!). Click 'Discussion'. Any comments direct or via
the reflector welcome.

Peter, G3LDO

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