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Old August 25th 10, 04:32 PM posted to rec.radio.amateur.antenna
John Smith John Smith is offline
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First recorded activity by RadioBanter: Nov 2006
Posts: 2,915
Default Measuring Balun effectiveness

On 8/16/2010 7:10 PM, Noskosteve wrote:

...
It'd also be interesting to probe several points along the feed line.

Anyone see anythhing wrong with this reasoning?

73, Steve
PLEASE also respond via email
K9DCI @ arrl dot net


I am sure you are already familiar with this, but never hurts to review
when working with baluns/ununs:

"The maximum attenuation of a ferrite core is not where the inductance
is maximum, but instead is where the magnitude of the impedance is
maximum. This impedance peak may even be where the impedance has no
inductive component nor capacitive component i.e. at resonance.

The frequencies that you are trying to attenuate determine the core that
you should use."

One mans' experience and experiments he
http://www.eham.net/articles/16319

Regards,
JS