Mike,
You're statement that it's not likely is correct most the time (99.9%), but
there are rare occasions when the hardware configuration doesn't follow the
expected weather changes.
Had one case with a full metal cross arm where the RFI source did not go away
when it rained. These aren't used much if ever anymore by my utility as the
sparking can also damage the wood pole.
Another RFI case some years ago was in my neighborhood that started up when it
rained which turned out to be a squirrel guard on top of a transformer. Found
it with a new UE Systems ultrasonic back then. The guard had metal prongs
sticking out in all directions 360 degrees. It sounded like a Jacob's Ladder
when the rain initially started, and finally was on 100% in heavier rains.
When rain stopped the noise stopped as it dried out. My utility stopped using
this style guard based on my complaint.
73, de ed -K0iL
-----Original Message-----
From: RFI On Behalf Of Michael Carter
One more tip: if the RFI doesn't abate when it's raining, it is likely not an
external power line arc source. My local power line RFI goes away whenever we
have a damp morning or a good steady rain.
73,
Mike, K8CN
_______________________________________________
RFI mailing list
RFI@contesting.com
http://lists.contesting.com/mailman/listinfo/rfi
|