What if ET is trying to call you through the RFI? You know, bending other
dimensions… I’ve said too much!
On Fri, Aug 13, 2021 at 2:04 PM David Eckhardt <davearea51a@gmail.com>
wrote:
> Your "secret" is safe, here!
>
> But, I have a rather monstrous common mode choke on the new
> refrigerator/freezer power cord. At least that was accessible unlike the
> clothes washer/dryer and dish washer, and a few additional SMPS's in other
> appliances.
>
> And.....if I get serious about a specific radio astronomy associated
> project, only the computer serving that project is on. All others are off
> and the internet is OFF, including the wireless router. Not just OFF, but
> denied AC power!
>
> Dave - WØLEV
>
> On Fri, Aug 13, 2021 at 5:31 PM Hare, Ed, W1RFI <w1rfi@arrl.org> wrote:
>
> > Every switcher that has caused me interference has been in my own home,
> > but don't let on. If it ever got out that W1RFI had RFI, my reputation
> > would be ruined. 🙂
> >
> > ________________________________
> > From: RFI <rfi-bounces+w1rfi=arrl.org@contesting.com> on behalf of Jim
> > Brown <jim@audiosystemsgroup.com>
> > Sent: Wednesday, August 11, 2021 4:42 PM
> > To: rfi@contesting.com <rfi@contesting.com>
> > Subject: Re: [RFI] Mystery noise
> >
> > Great description. And when dozens of these free running sources are
> > present (those in our own home and those in our neighbors' homes), the
> > result can combine to look like broadband noise. This piece, which ran
> > in NCJ several years ago, provides methods for finding and killing these
> > sources. The process does NOT start with direction-finding -- that comes
> > later after we've cleaned up our own homes.
> >
> > 73, Jim K9YC
> >
> > On 8/11/2021 12:21 PM, Hare, Ed, W1RFI wrote:
> > > Switching regulators make noise ever N kHz, with N being the free
> > running frequency of the internal circuitry. The noise can be almost a
> > carrier to just broadband buzz every N kHz, with a 120- or maybe 60-Hz
> > component.
> > > They are also drifty with temperature, change frequency with load
> > changes and when there is a voltage dip or surge, they do a little burble
> > or change in frequency to match.
> >
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> >
>
>
> --
> *Dave - WØLEV*
> *Just Let Darwin Work*
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>
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