[RFI] Mini-Split for new ham shack

[Dave Cole]

Being placed in a "specific mode" more than likely means a nice square 
wave, just narrower than at full power.

I had the fan motor replaced in my HVAC unit with a motor that did not 
need "Inverter technology".

"Inverter Technology", will probably get you "RFI suppressing 
Technology" in your hamshack...

Ask to see one in use, and bring a portable SW radio, and some 
ferrites...  I had a bit of noise on my setup, three or four ferrites 
later teh problem was solved, but I opted to not avail myself of the 
latest in "Inverter Technology".  :)

73, and thanks,
Dave (NK7Z)
https://www.nk7z.net
ARRL Volunteer Examiner
ARRL Technical Specialist, RFI
ARRL Asst. Director, NW Division, Technical Resources

On 3/8/21 10:59 AM, Jim Brown wrote:
> On 3/8/2021 9:54 AM, David Winarsky wrote:
>> It seems to have a variable speed motor with “inverter technology” but 
>> the HVAC company says it can be placed in a specific mode (low, med, 
>> high) rather than auto where it will stay fixed.
> 
> ANY variable speed motor is likely to be a source of nasty RFI.
> 
> 73, Jim K9YC
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