Thank you for the responses. No, I've noticed this loud humming on days
with absolutely no wind. If you were to hear it, it sounds just like a
transformer hum, electricomagnetic in nature as we've all heard from a
transformer. The only other thing to mention is that the intensity varies
cyclically over a period of two seconds or so. You can hear it from forty
or so feet away.
I've really examined these poles looking for something next to the wires
but I can't find anything. I could see if there were a transformer there but
there's nothing, just the single wire held up by two insulators.
Mike W2LO
>
> There are two ordinary wooden "telephone" poles in my neighborhood
>carrying just H/V and telephone lines-no transformers, etc.-just the wires
>supported by two insulators. Occasionally when I pass them while walking,
>there is a fairly loud hum coming from them. Touching the pole you can feel
>this loud hum. Oddly these two noisy poles are separated by a non-humming
>pole, that is, there is a humming pole, 150 feet or so later there is a
>quiet pole and 150 feet later a noisy pole.
> These poles sometimes hum and sometimes not. I don't detect any RFI
>from
>them but is this indicative of trouble in the making? I walk extensively
>through the neighborhood but haven't detected any other noisy pole besides
>these two.
>
> Mike W2LO
>
>
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