On Fri, 23 Nov 2007 09:46:03 -1000, Ken Brown wrote:
>Usually a balun is used to connect an unbalanced feed line, such as
>coax, to a balanced antenna such as a dipole. The balun should improve
>the current distribution on the dipole and reduce the current on the
>outside of the coax.
Most so-called "baluns" of the type Ken describes are really common mode
chokes, and they do exactly what he says.
See http://audiosystemsgroup.com/RFI-Ham.pdf for a tutorial on many things,
including these chokes ("baluns".
73,
Jim K9YC
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