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Old March 21st 06, 01:33 AM posted to rec.radio.shortwave
David
 
Posts: n/a
Default To RHF et al: More On Ferrite Bead Usage ?

On Mon, 20 Mar 2006 19:16:57 -0500, "Robert11"
wrote:

Hi,

Thanks for suggestions on Ferrite Bead usage from older post, and for all
the past help.
Sure is a lot to learn.

Have one question on the ferrite beads:

For my receiving only antenna.

If I put some ferrite beads over the coax run in from the antenna to the
house, wouldn't
the beads (also) degrade the incoming received signal level?

I guess what's bothering me is that I don't see how they can absorb
noise "selectively" from the actual signal (30 MHz on down) ?

What's some of the very basic theory behind how these things actually work,
then ?

Thanks,
Bob


The ferrites only affect the currents on the outside of the cable.