Re: [RFI] Ruud Furnaces and AC units

[Steve London <n2icarrl@gmail.com>]

There was a thread on this very subject about 2 years ago. Check the
archives.

73,
Steve, N2IC

On Sun, Jul 6, 2025 at 6:30 PM Dan K2YWE <dan.k2ywe@gmail.com> wrote:

> Electronically Controlled Fan. I'm not so sure. The are some in high end
> Carrier AC/heat pumps that some local hams have reported as EMI quiet.
> Probanly some other brands too.
>
> 73, Dan
>
> On Sun, Jul 6, 2025, 3:51 PM Jim Brown <jim@audiosystemsgroup.com> wrote:
>
> > What's an ECM fan?  If it's variable speed, it's almost certain to be
> > noisy.
> >
> > 73, Jim K9YC
> >
> > On 7/6/2025 8:54 AM, Dan K2YWE wrote:
> > > Is there any group knowkedge with respect to RFI from Ruud oil furnaces
> > and
> > > AC units that have ECM fans?
> >
> >
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> >
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