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Re: [RFI] Need help identifying RFI

To: rfi@contesting.com
Subject: Re: [RFI] Need help identifying RFI
From: Sam Morgan <k5oai.sam@gmail.com>
Date: Thu, 09 Dec 2010 11:27:10 -0600
List-post: <rfi@contesting.com">mailto:rfi@contesting.com>
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
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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