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Re: [RFI] clamp on ferrites at Mouser

To: rfi@contesting.com
Subject: Re: [RFI] clamp on ferrites at Mouser
From: Jim Brown <jim@audiosystemsgroup.com>
Reply-to: jim@audiosystemsgroup.com
Date: Mon, 16 Jun 2014 23:59:34 -0700
List-post: <rfi@contesting.com">mailto:rfi@contesting.com>
On 6/16/2014 11:29 PM, David Cole wrote:
I try and get about 1K of impedance
at whatever frequency I want suppressed.

That's a good start, but 5K is better. :) And remember that we're looking for RESISTIVE impedance. Reactance can be cancelled by reactance of the opposite sign from the cable to which it is added, increasing the current. But resistance always reduces the current.

73, Jim K9YC
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