[RFI] Ruud Furnaces and AC units

[Steve Dyer W1SRD]

Carrier and Bryant are the same gear.

On 7/6/2025 5:24 PM, Dan K2YWE 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 at 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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