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Re: [RFI] Keurig Coffee Maker as seen by a Spectrum analyzer...

To: rfi@contesting.com
Subject: Re: [RFI] Keurig Coffee Maker as seen by a Spectrum analyzer...
From: Jeff Blaine <KeepWalking188@ac0c.com>
Date: Tue, 30 Jul 2024 16:59:41 +0800
List-post: <mailto:rfi@contesting.com>
Dave,

I agree - any excuse to use a SA is a good one (the VNA falls into that same category here).

For your page, what would be helpful is to understand how you were sampling the gadget.  The reason i ask is that just about anything modern has a SPS and that is going to make a detectable RFI pattern.  What's most important in my view is how strong that radiation is.  If a 1" bit of wire on the SA input at 10' gives a NF+60 dB print, then that's trouble.  But if you had to make 20 turns of wire around the power cable of the device and use the SA preamp to get the same 60 dB SNR, then that's a different story. Curious.

73/jeff/ac0c
alpha-charlie-zero-charlie
www.ac0c.com

On 7/30/2024 12:56 PM, Dave (NK7Z) wrote:
Hello,

As promised, here is the link to my new Keurig Coffee Maker Classic, as seen by my new spectrum analyzer.  I have been itching for a chance to use this baby...

https://www.nk7z.net/rfi-snapshots/major-appliance-rfi/

Scroll to the bottom of the page, there you will see the Keurig on/off, and a shot of the test bed.  It is not scientific, nor was it intended to be...  Just an excuse to use the new SA...  :)

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