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Re: [RFI] Spectrum Cable Boxes

To: rfi@contesting.com
Subject: Re: [RFI] Spectrum Cable Boxes
From: Jim Brown <jim@audiosystemsgroup.com>
Reply-to: jim@audiosystemsgroup.com
Date: Thu, 10 Oct 2019 20:36:25 -0700
List-post: <mailto:rfi@contesting.com>
On 10/10/2019 4:54 PM, Anthony (N2KI) wrote:
So I am
fairly confident this is an RF shielding/filtering issue with the boxes.
In speaking with Spectrum, I could not reach anyone in a technical
department that has RFI experience.

You're paying them, tell them to give you a box that works or cancel your subscription.

If you still want to do it yourself, follow the guidelines in the app notes about killing noise and the new HF choke cookbook. These chokes MUST be multiple turns on #31 toroids, or through #31 clamp-ons. They must go on every cable in and out of the box.

73, Jim K9YC
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