A useful publication by the US Naval Postgraduate School called " The
Mitigation of Radio Noise From External Sources at Receiving Sites" may
provide further information. Chapter 3. Step 2. Examples of source
devices. 3.1. Power line sources, provides comprehensive information.
The publication NPS-EC-07-002 is approved for public release and available
to download.
Good hunting, John. G3JVC/GM3JVC.
> I am trying to precisely locate a strong static source, were familiar
> with High tension lines arcing at the insulators on very dry days. this
> however is the opposite , it only occurs when its raining or has been
> raining and still wet out it is local . its only about 1000 Ft away but
> when I aim in the general direction there is a good S9 static, popping
> sometimes sounds like oil burning in a frying pan or a motor boat its
> constant for the most part and particularly most strong on the
> 6,10,12,15M bands. With a portable radio I have narrowed it down to 100
> Ft radius in area near the center of 2 streets, There is transformers,
> caps and splices in some the power lines in the area but have yet to find
> the exact location of. power line crews have looked in the past without
> finding anything but this has been going on for 10+ years any ideas on
> exactly what might be the culprit? again once its no longer raining or
> wet out it
> completely goes away making it more difficult to find.
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