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.
e-mail <[email protected]>