no help from my end
but I will be watching this thread closely
I have the same high noise floor problem starting on 160m
continuing at an S9 level down through 20m
only difference is I never have any 'rare breaks' in the noise
I have horizontal and vertical antennas and this is heard on both
maybe an s unit or 2 stronger on the vertical
I have called my power company,
but they will not get to me until after the start of 2011 they say
a friend has driven around the area and found 3 places where,
listening on 40m, the needle pegs in his mobile.
One is around a substation about 300 yards away
another is a power line leaving that same sub station
and headed away from me
and lastly about a block away all around a Sonic Drive in restaurant
guess I have something to look forward to for the new year huh?
GB & 73
K5OAI
Sam Morgan
On 12/9/2010 10:25 AM, Gary Tuck wrote:
> About a month or more ago I started getting QRN reminiscent of the power line
> noise I've had in the past--strongest on 80 and 40m and decreasing gradually
> as the frequency increased. In the past 20 years we have been at this QTH,
> the power company has found and fixed the problems--I know, I'm very
> fortunate. Although I've notified the power company again, I'm not sure the
> RFI is from the power lines. It lacks much of the sputtering spitting nature
> that I've heard before. It sounds almost like band noise but about 5-7
> S-units stronger than I normally hear. It is on 24-7 with rare breaks of
> just a few minutes which makes me think it's not someone's plasma TV or
> furnace. We have no new appliances in our house and I've reconfirmed ground
> connections, turned off routers and computers and none of it makes any
> difference. The wx has been cold windy and rainy so I've not walked around
> the neighborhood with an AM radio yet. The amplitude of the QRN seems
> constant--in other wor ds, I've not seen any spikes although I have only my S
> meter and ears to work with here. My antenna is a 80m slanting delta loop.
>
> Any thoughts, guidance, questions would be very helpful. Thank you!
>
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