Hi Jim,
Yep. With this unit, I was mainly concerned with the ECM Motor (used for
the blower) which, from what I have read of specs on various
manufacturers websites, is pretty much mainstream currently at least in
package units. From one website; "ECM stands for an “electronically
commutated motor” which basically means a motor that uses electronic
controls to vary its speed".
The package unit outside is about 10' away from me sitting at the PC in
the radio room and I can hear a slight spinup noise by ear when the
blower comes on. I did not hear that with the other unit.
//
But for me and this unit, so far no hint of RFI :-). Others have
reported ECM rfi often every ~18khz over several mhz or more. Why the
difference I do not know.
I looked over HF last night and have been on 6m this morning. Nothing.
My unit is a York PCG4A300752X4
73
Chuck
W4NBO
//
On 2/4/22 23:31, Jim Brown wrote:
On 2/4/2022 8:53 PM, Charles Plunk wrote:
So maybe I dodged the RFI bullet on this one.
Most radio trash from stuff like this is generated by variable-speed
controllers for motors.
73, Jim K9YC
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