This is quite an old pic, before our carriers went to 6.4mHz wide. I remember it being a primary OH to UG transition, with either a bad cutout or insulator. We called our power co RFI guy, gave him the address and pole number, and a week later it was fixed. The AM radio was buzzing on all frequencies for this one.
We had to clean up alot of noisy drops in the area to get it down to where you see it. It was actually higher than the carrier when we started looking for it. My theory about how it affects our plant goes like this:
The RF energy (impulse) that is created by the arcing of power line faults gets onto the shielding of our plant and travels to ground. On the way along the shielding, the impulse has opportunity to get to our signal path (center conductor) via faults in the shield, like loose, corroded drop connectors, loose plant hardware, plates and housings, as well as the stuff inside the houses our drops feed. The tighter the plant and drop networks are, the less that powerline noise will affect us.
We might be investing in one or two of the detectors from that link I posted earlier. I hope.
Re: Fighting impulse
Member #: 19319
Registered: 1996-2001
Posted:
143
Name:
Lorne
Company:
major MSO (3rd namechange in 5 years)
Occupation:
Lead System Tech
Location:
Virginia
Personal:
60-ish
Experience:
~31 years
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