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Re: [RFI] Large ferrite chokes on power cables

To: rfi@contesting.com
Subject: Re: [RFI] Large ferrite chokes on power cables
From: Jim Brown <jim@audiosystemsgroup.com>
Reply-to: jim@audiosystemsgroup.com
Date: Thu, 28 Mar 2024 00:57:10 -0700
List-post: <mailto:rfi@contesting.com>
On 3/27/2024 6:44 PM, nlsa@nlsa.com wrote:
Dave -
Thank you for the answers.  Luckily, 144 MHz is my only interest so ferrite
chokes might be helpful.  We'll see.
In that case, I recommend ten Fair-Rite #31 clamp-ons sized so that 
their inner diameter fits the cable pair -- that is, both current 
carrying conductors. They should be placed at each noise source. You'll 
need to know about the system -- whether it is a single central inverter 
that's making the noise, or multiple inverters at each panel. If there 
are multiple inverters, I'm recommending ten at each inverter.
73, Jim K9YC


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