[RFI] 15 meter RFI problem - Super documentation

Jimk8mr at aol.com Jimk8mr at aol.com
Sun Apr 20 16:01:32 EDT 2008

Is there not an FCC Part 15 issue at work with the device?
73  --  Jim  K8MR
In a message dated 4/20/2008 3:34:52 P.M. Eastern Daylight Time,  
jvpoll at dallas.net writes:

Wow ...  and how timely.

I believe I have a spectral 'display' of one of those;  it has been
bugging me for awhile in my part of the world.

Maybe  post it a little later ...

The key part was this:

"The baseband black and white video signal
is shifted up to  approximately 20.5 MHz
to 22.0 MHz."

That's right in  the area of this RFI I have seen, with some
weaker signal artifacts  detectable up through 26, 27, and
even 28 MHz..

JimP  // WB5WPA  //

----- Original Message -----
From: "Tim Duffy K3LR"  <k3lr at k3lr.com>
To: <rfi at contesting.com>
Sent: Sunday, April  20, 2008 2:18 PM
Subject: [RFI] 15 meter RFI problem - Super  documentation

Thanks to Greg, W8WWV who found this RFI source and  detailed his  experience.


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