[RFI] RFI Source - looking for clues\help

[Dave Cole]

I have some general RFI location tips at my web site, www.nk7z.net...

Whatever it is, I bet it has a motor in it...    You didn't by chance 
get a new HVAC did you?

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

On 1/1/21 5:30 PM, Brad Denison wrote:
> Well, 2020/2021 transition is starting off poor with some new RFI killing
> my SE directional RX antennas.  From this direction I am hearing a broad
> hash with a "musical whine" .  It seems to be a fairly consistent on/off
> cycle, however, I have noticed the cycle duration change depending on the
> day.
> Would appreciate any insight if anyone has experienced anything similar.
> To date I have done a full house power down test and also walked the area
> with a small AM handheld (which does not hear anything locally).
> 
> 
> A picture of the RFI is here:  http://bit.ly/3hwzwUg
> 
> Short cycle audio here:  http://bit.ly/34ZtbeS
> 
> And longer cycle audio here:  http://bit.ly/3hE3TYP
> 
> Hoping to stir up some help or suggestions.
> 
> 
> HNY,
> 
> Brad W1NT
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