If the rain is stopping it - perhaps the conductivity of the soil is a
variable?
I seem to recall that they have a soil additive to improve grounding. (Salt
works, but eats the wire!)
Just a thought ...
kd4e
Interesting you would bring this up. My current 120hz target peaks at
roughly 19.5mhz. Falling off below roughly 10mhz to where its almost
insignificant and goes up to about the 2 meter band where its very
weak with directional antennas. I started hunting it after the power
co fixed my primary source back in the spring. I had isolated to a ~3'
area of ground wire stapled to the pole, I think. 7.2kv 3 phase pole
with lots of hardware so not easy to tell with ultrasonic dish. I
wanted to do some more investigating but then came the high Tennessee
humidity for the summer and the target has been >98% absent.
I greatly suspect it will return more frequently with the lower
humidity in late Sept/Oct forward. A few days ago the humidity got
down to close to 60% and it returned for a few hours.
Its on a pole in my back yard thus very close in proximity to my
antennas. As to why the peak, I would be interested to know also. Some
of the utility hardware of such a length it resonates on a certain
frequency? Just a guess.
One thing is for sure, an open mind is essential to hunting this
stuff, lol. My biggest surprise is finding 3 sources on 2 poles so far
related to the stapled ground wire. The one they fixed I actually saw
it arcing with binoculars. Another due to a crepe myrtle growing
around the pole (and stapled ground wire). Cut the limbs off it and it
was gone. And this third one that appears right now to be related to
the stapled ground but that has yet to be resolved.
Chuck
W4NBO
On 8/8/21 7:24 AM, Pete Smith N4ZR wrote:
A (probably) dumb question: I have a severe line noise to my west.
For some reason it is manageable on 20, much worse on 15 and
crippling on 10. These subjective descriptions are confirmed on my
S-meter. Why would this be happening, and does it offer any helpful
clues to finding the source?
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