[RFI] evil rfi nextdoor

[Mike Martin]

Rodger a couple of things I'd like to suggest is when you turn off the main make sure that you're not just reducing the amount irradiation to the level that it seems like it's gone. Sometimes turning off the main cuts off a large portion of antenna that helps to radiate the noise. by doing that it would make it seem as the noise is gone when really it's just much much weaker than it used to be and you don't know that it still radiating. The same thing can occur when you're turning off individual breakers. When you turn off the breaker to the room you're in the noise goes away because you just shut off half of the antenna in that area. So once you turn off the breaker or main go outside to the meter and make sure you can't hear the noise radiating from the other side of the meter.
once you're certain that the noise is in that residence and you turn off the individual breaker that controls that noise then go to that area of the house, not looking for a specific item, and unplug everything starting at the door to that area and go around the walks and unplug everything one at a time. do this until you turn off the device that's creating your noise problem. remember sometimes circuits two adjacent rooms are tapped off the circuit in the previous room so you could easily have an outlet in the next room that's on the circuit of the original rim. Also it's often that electricians will tap off of a circuit in the attic and run it to the other side of the house.
Don't be fooled by the arcing sound the only way to really tell it's an arc is by looking at it on an oscilloscope. it's always best not to judge the sound in the source. Just tracked the noise. Don't go looking for specifics because that just has you're running all over the house. another thing, the noise is radiating from every wire in the house so trying to sniff it out isn't very useful inside of the house because as you pass a wire in the wall than the boys were radiate in the level will increase its can be very misleading.
Visit www. RFI services.com and look at the how to locate information there it would be very useful to have this in hand when you go to the neighbor's house and hand it to them. The last couple paragraphs you'll find very useful in your explanation.


⁣From Mike's Mobile Email

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On Aug 10, 2019, 4:03 PM, at 4:03 PM, ROGER STEPHENS via RFI <rfi at contesting.com> wrote:
>Listmates - after 60 good years in our hobby with more than enough rfi
>sniffing  and eventually eliminating I have met my match.  I ventured
>yesterday into my infirmed and mideighties afghan neighbors home which
>is
>producing a roughly 25-30 db hash above my noise level on all bands. 
>After
>a complete house recon, I still could not locate the source with my
>trusty
>grundig yachtboy since the whole house was so hot (rfi can be heard
>from
>several hundred yards away) that I could not discern a specific
>culprit.
>The owners who were a bit confused by my endeavor and our language
>challenges said that nothing had changed recently except when a
>bathroom was
>remodeled, the handyman replaced numerous wall outlets.  So after more
>chat
>effort, I shut down the house mains and the noise disappeared so I know
>the
>gremlin(s) is hiding within.  Not overstaying my welcome, I begged
>forgiveness for the fruitless invasion but assured them I must come
>back.
>My plan so far is next visit to shut down each circuit at the fuse box
>till
>the noise is isolated and then attempt to sweep that area of the house.
>Since my detective work must be short time wise and the rfi is so
>strong,
>what possible source might I look for and hopefully be able to unplug
>knowing that it pulses 30 times a minute continuously and sounds like
>arcing
>to me with an audible preemptive spike at the beginning of each hash. 
>It
>begins as low as 85 khz and continues to pulse up to around 3 mhz where
>it
>gradually becomes a continuous noise all the way up to 6mtrs.  I trust
>that
>some of you reading this postmightl have some guidance to share as I
>really
>do miss being able to hear both my modern rigs as well as the fleet of
>aging
>boatanchors.   J   73 es bye4now,  roger  k5vrx
>
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