On Mon, 8 Nov 2004 20:26:40 -0800, Michael Tope wrote:
>You can model the chokes you already
>have installed by placing a lumped impedance equivalent
>to the common mode impedance of the choke balun in
Actually, the impedance of a bead choke can be found on the mfr's
data sheet as a graph of series equivalent R and X vs frequency.
Both R and L are functions of frequency.
At the risk of sounding like a broken record, go to Fair-Rite's website
(google for to find the url) and download their excellent engineering
catalog. It provides the best education I can think of on the use of
ferrites. I have learned a LOT from it.
Jim Brown K9YC
See: http://www.mscomputer.com for "Self Supporting Towers", "Wireless Weather
Stations", and lot's more. Call Toll Free, 1-800-333-9041 with any questions
and ask for Sherman, W2FLA.
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