Thanks for the reply Mike.
Here are some photos I took 2 or 3 days ago;
https://www.facebook.com/media/set/?set=a.169293388701571&type=3
And a photo at the bottom of the page here;
https://www.qsl.net/af4o/Powerline%20RFI%20QSL.net%20Webpage/Fall%202021%20Source%202.html
<https://www.qsl.net/af4o/Powerline%20RFI%20QSL.net%20Webpage/Fall%202021%20Source%202.html>
Thanks,
Chuck
W4NBO
On 10/6/21 7:10 AM, Mike Martin wrote:
Going by your notes, a single phase pole with nothing but a pole top
pin and a ground is probably one of two things.
Most common and most likely would be the staple and they shouldn't be
hampered in they should be removed and replaced so the new staple is
in fresh wood and will be tight for a long time. The second source
will be one of the bolts holding the pole top pin. Commonly one is a
through bolt that goes all the way through the pole with a nut and
washer on the backside and often the second one is a lag which is no
more than a very large wood screw that always comes loose. At any rate
I would suggest they tighten both pole top pins and replace the
Staples maybe the first three or four from the top. Sometimes
hammering The stables in will work and sometimes only temporarily.
Other times not at all. It's unlikely to be a tie wire or the
insulator unless it's been struck by lightning which is a possibility
and frequently you can tell with binoculars that the top of the
insulator is now White where the coating has been burned off of it by
the lightning. If it's insulated conductor then that would be the most
likely source that isn't detectable with ultrasound, because the
arcing is through the rubber and on top of the insulator where it
can't be seen. If it's a bear conductor in the tide wire is insulated
then ask them to remove about 4 inches of the insulation from the tie
wire and twist that end of the tie wire tightly on to the line and
then that will solve that problem. I'd love to see a picture of that
pole standing under the line looking straight up so you can see both
sides of the pole.
At any rate these items will definitely cover that pole and you're
fortunate, if that is the source pole, to have such an easy pull to
resolve an issue on.
Best wishes and I look forward to hearing the result
Be safe,
Mike Martin
RFI Services
51 W Bay Front Rd
Lothian, MD 20711
240-508-3760
On Oct 6, 2021, at 1:55 AM, Charles Plunk <af4o@twc.com
<mailto:af4o@twc.com>> wrote:
Fellow RFI hunters,
My latest source is s8-s9 nearly across the hf bands on my vintage
TS830s and Doublet. I use the 830s mainly as a station reference when
hunting RFI. I have triangulated it to a single phase 7.2kv pole */3
houses away./* Unable to hear it with Ultrasonic dish, although about
1/3 of the side of the pole is inaccessible due to a very jungle like
backyard (bad renters moved out, owner died, house recently sold, long
story).
It just has a insulator at top for single phase, pole pig fed by a short
wire from the single phase, then lower 3 wires I am assuming lower
voltages, neutral, ground, and 3 house drops.
Ive been looking at some pictures I took.
The stapled ground wire on the wood pole goes up to with maybe 2 inches
of the 2 bolt metal bracket holding the top insulator on but does not
appear to be connected. I can zoom in on the picture and see this.
So, does this strong an arc just about have to be on that insulator area
of the 7.2kv or am I wrong and it can be in the ground system, 220v run,
etc?
More detail here;
https://www.qsl.net/af4o/Powerline%20RFI%20QSL.net%20Webpage/Fall%202021%20Source%202.html
<https://www.qsl.net/af4o/Powerline%20RFI%20QSL.net%20Webpage/Fall%202021%20Source%202.html>
I emailed the Utility this past Thursday about this one and another
close by that I am hearing with the Ultrasonic.
73
Chuck
W4NBO
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