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Re: [RFI] Daisychaining Grounding [Was: DigiKeyer II]

To: rfi@contesting.com
Subject: Re: [RFI] Daisychaining Grounding [Was: DigiKeyer II]
From: CR <ka5s@earthlink.net>
Reply-to: ka5s@earthlink.net
Date: Fri, 20 Dec 2013 09:39:30 -0500
List-post: <rfi@contesting.com">mailto:rfi@contesting.com>
Well, if the objective is to keep all interconnected equipment at the same potential, we want connections some small fraction of a wavelength long.

Lead inductance is the problem; EMC Engineer and author Glen Dash (WB9CLJ -- may not be active, no antennas seen on satellite view) used to say "Ground isn't ground the world around"; IIRC, he once suggested using a really big sheet of metal with substantial capacitance as a low inductance RF ground.

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