[RFI] GE Microwave

Dave Harmon k6xyz at sbcglobal.net
Mon Aug 27 16:30:14 EDT 2012

Yep....that's what I did on my coffee pot!
Coulda bought a new one but I didn't.

Dave Harmon
Sperry, Ok.

-----Original Message-----
From: rfi-bounces at contesting.com [mailto:rfi-bounces at contesting.com] On
Behalf Of Missouri Guy
Sent: Monday, August 27, 2012 3:26 PM
To: g0ery at cox.net; RFI at contesting.com
Subject: Re: [RFI] GE Microwave

I've heard that some microwaves use switching power supplies instead of a
*heavy*, conventional transformer.
If your appliance uses the switching supply, chances are that it's "on" all
the time so the controls are powered up. 
That could be the source of your noise.  You might try a common mode choke
on the power cord...see if that makes a difference.  Study the choke info on
K9YC's website!!
Charlie, N0TT
On Mon, 27 Aug 2012 13:09:47 -0700 "Richard Saunders (K6RBS)"
<g0ery at cox.net> writes:
> I've had a problem with nose on 10M for some time. It is continiuos 
> and starts around 26 Mhz and drops off around 31.5 Mhz. In AM more I 
> hear S7 wide band white noise with an embedded a/c buzz.
> This weekend I isolated the problem by turning the power off to the 
> house and doing a biniary search with the breakers until I found that 
> it is an in-built GE Microwave model PVM1870DM3SS.
> If does have an option to turn off the display but unfortunately that 
> didn't help. For now it is unplugged and my noise on 10M is S0.
> Any help would be appreciated.
> Thanks,
> 73 - Richard K6RBS & G0ERY
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