I have several CFL's in the house. None have caused noise in the rig, on or
off.
So your CFL is what caused the noise or hash? Your last paragraph leaves me
with wondering if the noise is gone or still there.
If the noise is "spitting and sputtering and intermittent" and if you can hear
it on 10 meters, makes me wonder if it IS powerline noise. I had a similar
condition here that caused problems on 2 meters. It turned out to be on a
primary power line near my house. A loose insulator and hardware caused by a
deteriorated pole top which in turn caused the hardware securing the insulator
to become loose.
If you still have the noise, you should walk the line around your neighborhood
with a sw rx, better yet a 2 meter radio or aircraft band radio, that is
capable of receiving AM, (NOT FM). Look for old powerline poles that have
splintered tops where the primary line insulator and it's hardware are attached
at the top with one or two large bolts though the pole. These things become
loose if the tops of the pole has deteriorated, when it's windy they tend to
jiggle around causing the intermittent sputtering noise. Take a binocular with
and have a good look at suspicious hardware. Report your findings to the power
company tech. It will help in the troubleshooting.
As for my noise problem, the local Xcel Energy crew cut off about a foot of the
rotted pole top and drilled new holes (in good wood) for the bolts and
reattached the insulator and attending hardware. Also re-stapled the ground
wire along the pole. Good job done by my local Xcel Energy crew. Noise gone.
Dale, k9vuj
On 10, May 2011, at 17:08, Gary Tuck wrote:
> I've been suffering from what appeared to be two sources. Certainly power
> line noise which
> I've had on a couple of other occasions in past years at this QTH. The power
> company has
> always found it and fixed it. Then there was a nearly constant background
> hash type noise
> which I thought originated with the smart meter or power drop thinking I'd
> eliminated every
> other source.
>
> A senior tech arrived and placed sensors on the input lines, connected them
> to a recording
> device, measured harmonics, and over a two week period declared that the
> power as delivered
> was fine. He pulled the smart meter for a couple of days and still the noise
> persisted. He
> tried everything I could suggest. He drove with me in my car with the AM
> radio tuned off station
> and heard the RFI kick up in the spots I'd told them about and then talked to
> the crew which is
> responsible for power quality. He inspected the cable installation and its
> ground, He also helped me
> trouble shoot the circuits in the house and we found a CF bulb which seemed
> to be part of the problem.
> (The bulb in question was "burned out" and but when the light switch was
> turned on, the noise diminished,
> turned off, it increased. Could someone explain that to me? There are other
> CF's on that
> circuit which I will be changing out soon. I also have florescent lights in
> the kitchen and utility room
> besides CF bulbs in several fixtures.
>
> So, it looks like the hash type noise may have originated, at least in part,
> in my own house. I really
> hate to admit that since I thought I'd checked everything out. The line
> noise is quite real, spitting
> and sputtering and intermittent. I wish the crew responsible for that issue
> was as dedicated as the
> senior tech who helped me out. But I now have hope after six months of
> fighting the issue and
> starting to work on setting up a remote station.
>
> 73, Gary W7TEA
>
>
>
>
>
>> Two utility company techs arrived today to check out the smart meter after I
>> described the symptoms. They found that the ground wire behind the meter
>> was
>> carrying current. When the current was cut off at the breaker panel, the
>> current bled off slowly. RFI was being radiated from the drop and down into
>> the ground--underground utilities here. A line crew is coming next week to
>> check the transformer
>> and the ground at the meter. Any thoughts and relevant experiences surely
>> welcome!
>>
>> 73, Gary W7TEA
>
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