Hi, Mike,
I bet the thermostat in the coffeepot was arcing over. It could be
defective, or just a shoddy design.
Can you make a recording of the resultant noise and send it to me? I am
collecting RFI sounds that are associated with specific problems. I would
like about 30 seconds of recording in both SSB (2.5 kHz) and AM modes (about
6 kHz bandwidth). As soon as I have a few more, I will start a "sounds of
RFI page" on the ARRL website.
73,
Ed Hare, W1RFI
ARRL Lab
225 Main St
Newington, CT 06111
Tel: 860-594-0318
Internet: w1rfi@arrl.org
Web: http://www.arrl.org/tis
> -----Original Message-----
> From: Mike Lazaroff K3AIR [mailto:k3air@arrl.net]
> Sent: Tuesday, June 26, 2001 9:23 PM
> To: rfi@contesting.com
> Subject: [RFI] Coffee Pot RFI!
>
>
>
> Here's a great (and true!) story about our FD operation this year:
>
> When operating 80m phone, all of a sudden we were overwhelmed
> with 40 db
> over 9 buzzing QRM up and down the band. The noise was
> barely audible on
> 40m, and not at all on the other bands. It just appeared
> suddenly, so we
> figured somebody turned on something that didn't like 80m.
> We checked our
> power supplies, laptops, etc., figuring it had to be one of
> them. Nope.
>
> After checking all around the campsite, we discovered that
> when the coffee
> pot in the "dining area" was turned on, the RFI appeared.
> When it was off,
> the RFI was gone.
>
> We survived just fine without (hot) coffee.
>
> Anyone else ever experience this???
>
> 73 and hope everyone enjoyed Field Day,
> Mike K3AIR
>
>
>
>
>
>
>
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