On 08 Jul 2009 15:27 GMT, Thomas Damboldt wrote:
>Hi,
>if I understand the common mode discussion correctly, a short
>(not necessarily active) antenna and a much longer feedline
>act together as kind of a dipole. If I connect my receiver
>with a very short feedline (say 1m), to the antenna, I should
>not be receiving much common mode noise. Is that true?
>Certainly worth trying.
For a discussion of what causes common mode current, see
http://audiosystemsgroup.com/RFI-Ham.pdf
It's in the discussion that leads into Coaxial Chokes.
For a Power Point slides on the same topic, see
http://audiosystemsgroup.com/NCDXACoaxChokesPPT.pdf
73,
Jim K9YC
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