Kirk,
Sounds like a leaky insulator, if the intensity varies between rain and
dry spells, then that is a good possibility.
Notify the engineering department of your power provider of the noise.
Leaky insulators are also waste energy and the power company does not
get "paid" for the wasted energy. They usually will come out with their
own "sniffing" equipment, but try to be around and have your portable
radio handy if they don't hear anything.
Good luck,
Jerry - K0HZI
K4RO Kirk Pickering wrote:
>I've got some strange new QRM on the HF bands. It is quite
>strong on 40meters, but it's also audible on other bands as
>well. It is coming in from the street powerlines I believe,
>as it is extremely strong right at the house mains power usage
>meter. The noise is still fully present on a portable radio
>when the house main breaker is thrown, so I'm pretty sure it's
>not in my home. The interference is very loud, and seems to
>be present 24/7. It does seem to move around a bit, favoring
>the 40 meter RTTY frequencies (7.070-7.100)
>
>Any help identifying it would be greatly appreciated.
>A recording is available at the following URL:
>
>http://www.k4ro.net/k4ro/audio/K4RO_40m_QRN.mp3
>
>Thanks for any advice.
>
>-Kirk K4RO
>
>
>
>
>
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