[RFI] How to proceed?

[AA5CT]

 Pete,


I should mention I tracked down another 'dull thud' kind of line-rate
locked broadband noise on 160 meters (and slightly above 160) 
to a residence about 3900 feet to my NNE ... suspect this is some 
sort of electronic device and not a HV arc source ... but,one never
knows. 


I have to make another run and get a better bearing to a specific 
residence, then decide how to approach the owners, who may be 
Asian given the language I heard while pedaling down the alley 
on the bicycle while doing a 'survey' run with the Coastal Nav 
receiver.


This will mark the first time I have tracked down a line-rate locked
'noise' to a residence on 160m. I have previously tracked down 
'wandering carriers' to three different geographically located 
'sources' at residences about 4 or 5 years back. These were most
likely wire/wireless 'dog fences' that had spurious 'wandering
carrier' (unsteady tone, NOT raspy) emissions. Such a signal 
would likely have not had any 'signature' at VHF to allow it's 
easy tracking and locating. Power line sources, actual arcs, 
generate a fair amount of 'noise' higher in frequency given
the dynamics of the arc (the rate at which it 'fires' and 
extinguishes, the rate-of-rise/rise time, etc.)



73, de AA5CT

.
.     On Sunday, January 26, 2020, 8:57:03 PM CST, N4ZR <n4zr at comcast.net> wrote:  
 
 Recently, I have experienced constant S8 line noise on 160 meters.  I've 
killed the power in my house and run the radio on batteries, with no 
change, so it's nothing inside.  When I drive down the road a couple 
hundred yards away, which has a 3-phase powerline on one side, with my 
car radio tuned to 1710 KHz, the noise is almost deafening, with 
definite peaks at certain poles, as well as intermittent snapping and 
crackling noises that really suggest something loose or broken..  
However, today I went out with my homebrew VHF aircraft band Moxon, 
hoping to narrow down the noise-maker(s) to particular poles, and to my 
surprise I could not hear anything comparable to what I heard at 1.7 MHz.

Any suggestions about how I might go about tracking down the source or 
sources?  The local power company guy is very willing, but does not have 
much training to go on.

-- 
73, Pete N4ZR
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