Some power companies don't learn until they've been burned a few times. :-)
But I agree, the nature of the noise doesn't sound like power line. In that
case, the power company is not responsible.
The plasma TVs that radiate noise have typically been more noisy on the lower
I hate to bring up the thread gain, but the noise sounds like it could be
coming from a high-powered indoor grow light. I say that because the one model
we looked at had a peak of 9 MHz, with strong noise also above and below it.
Most of them are operated on timers, though, so would be more regular than you
It should be possible to find it with a drivearound, but you'd need an HF rig
to do so. Does your HF rig operate from 12 volts? If so, a simple whip antenna
and a mag mount for your car could do the trick, although you'd have to invest
about $50 for the 4-magnet mount and another $20 for at least one of the
single-band mobile whips. If the noise is really loud, you may also need a
If you can find some local technical help, that can be useful. In some areas,
there are technical volunteers that do sometimes help. Contact your ARRL
Section Manager and ask to be put in contact with the Section Technical
Coordinator, He or she will usually know what technical resources are
Your local club may also have a technical guru, or at least someone with an HF
I do have a mag mount and HF rig that could be loaned, but I fear that the cost
of shipping would exceed the cost of your buying a mag mount, if you have a
receiver capable of operating on the bands of interest.
Ed Hare, W1RFI
ARRL Laboratory Manager
225 Main St
Newington, CT 06111
From: Rick Scott [mailto:firstname.lastname@example.org]
Sent: Fri 1/14/2011 12:25 PM
Subject: [RFI] Help with Bad RFI.
My Saga is a common one I think. But I need some expert help thus I joined the
I had bad 24hr power line noise and the local power company after much prying
came out and found 3 poles with
issues, however this took several months and then the repair more time with lots
of phone calls and promises
that didn't fix it thus prompting me filing a FCC complaint and them fixing it
Immediately after I sent them a copy of the complaint.
But now they wont even talk to me with this issue, probably rightfully so but it
was their inaction that prompted the complaint.
And I wanted them with their DF to locate it. but Alas not a chance. And I
dont have the equipment to find it. Ive driven around
with an AM CB but cannot locate it.
it started about 2 weeks after they fixed the power lines. But this one, even
though it sounds like power line noise, cant
be because of the times.
It radiates worst from about 5.50MHZ up to about 11MHZ. On 30 and 40 meters
its 20+ over 9 and kills my system totally, I cant even
It comes on anywhere from 10am to 2pm and goes off anywhere from 10pm to
It sounds just like power line noise.
I have a recording of it at home, I can post it and pictures on a PSK Software
if anyone needs that to determine more.
Any suggestions would be appreciated. And if anyone is in the Puget Sound area
that has the tools/knowledge to help
I would appreciate it.
and Yes I do have PLASMA trouble as well on 80m, but they dont watch all the
time so I'm OK there.
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