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[RFI] coax shield outside impedance?

To: RFI@contesting.com
Subject: [RFI] coax shield outside impedance?
From: Ray LaRue <w4byg@att.net>
Date: Wed, 25 Nov 2020 18:47:12 +0000
List-post: <mailto:rfi@contesting.com>
I have a question that I've not seen discussed before. Maybe it has been, but I don't remember seeing it.

*When attempting to minimze CMI on the outside of 50 ohm coax, the shield is not normally 50 ohms. What shield Z do you use for calculating the needed choke Z and thus the attenuation to expect?
*
Ray, W4BYG

They say a smart person learns from their mistakes.  A
wise person learns from the mistakes of others.



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