[RFI] Mr. Carlson's Lab: coffee maker RFI

[Charles Coldwell]

Paul Carlson also did a whole video on noise (RFI and EMI)

https://youtu.be/tS7SvoT8Ivw

His videos are slow moving, but the man's genius always shines through.
Plus the audio is superb; you can tell he knows his stuff.

On Sun, Jan 16, 2022 at 9:07 AM Hare, Ed, W1RFI <w1rfi at arrl.org> wrote:

> Possibly not. In the US, it's an appliance, so not subject to specific
> emissions limits under Part 15 rules.
>
> ________________________________
> From: RFI <rfi-bounces+w1rfi=arrl.org at contesting.com> on behalf of Rob
> Atkinson <ranchorobbo at gmail.com>
> Sent: Saturday, January 15, 2022 1:55 PM
> To: rfi <rfi at contesting.com>
> Subject: Re: [RFI] Mr. Carlson's Lab: coffee maker RFI
>
> I don't know about all Keurigs, but I've repaired a K155 commercial
> machine, and I can tell you that the digital logic control board,
> which is a hodgepodge of through hole and surface mount parts, is in a
> non-shielded plastic box inside the machine.  That board has the logic
> chips and power supplies on it, and Keurig engineers were probably not
> thinking about RFI when they designed it, but that's just my
> speculation.
>
> Rob
> K5UJ
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-- 
Charles M. Coldwell, W1CMC
Belmont, Massachusetts, New England
"Turn on, log in, tune out"