PM
Subject: Re: Topband: Low band noise
Hi Bruce
Very happy to answer questions that top band DXers may have about our
experience at ZL6QH.
Please note that not all wind farm installations are noisy - it depends on
the type of turbine technology that is deployed.
73, Brian VK3MI ZL1AZE
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Sent: Saturday, February 22, 2014 12:45 PM
To: Brian Miller ; topband@contesting.com
Subject: Re: Topband: Low band noise
Hi Brian,
Thank you for your input and sorry to find that the windmill farm noise
caused ZL6QH to close down.
It will become evident that each country will need enforce RF
come!
Since the ice storm of Dec 22/23 2013, this is not shaping up to be a good year
for my QTH.
73
Jeff, VE3CV
Message: 7
Date: Fri, 21 Feb 2014 20:45:52 -0500
From: "Bruce" Hi
To: "Brian Miller" ,
Subject: Re: Topband: Low band noise
Message-ID: <716A846E474342DEADB9
guidance in this matter.
Some of the low band reflector DXers may wish to ask questions, if that is
all right with you.
Thanks again,
73
Bruce-K1FZ
- Original Message -
From: "Brian Miller"
To:
Sent: Friday, February 21, 2014 5:46 PM
Subject: Re: Topband: Low band noise
H
"
To:
Subject: Topband: Low band noise
Message-ID:
Content-Type: text/plain; charset="iso-8859-1"
Thank you for those who emailed information. They basically thought the
larger windmill arrays did not generate much noise. One test, checking all
bands, was from a mobile K3 with a
Thank you for those who emailed information. They basically thought the larger
windmill arrays did not generate much noise. One test, checking all bands, was
from a mobile K3 with a 9 foot whip antenna. Unless the whip was loaded to 1.8
Mhz it may not pick up much noise at one mile. The most pr
I just sent this to the fellow in Waco. I'd recommend getting the PC ap
called Zelscope which is a software based scope. It was ten bucks a few year
ago. (there are also several free iphone aps which do this too - audio spectrum
analyzers) Hook receiver to sound Card and you can see the wavef
Bruce,
I live in 'wind farm central' (Devon, southwest UK) and have direct experience
of wind generator EMI.
The small generators (up to 50kW) almost universally use an induction principle
and are RF silent. But the type that sit on 160-300ft towers and generate in
the 1-5MW range are effective
Utility company telemetry and control over the wires maybe?
Carl
KM1H
- Original Message -
From: "Jim in Waco WB5OXQ"
To:
Sent: Tuesday, February 11, 2014 9:02 PM
Subject: Topband: Low band noise
I live in Waco Texas and there are no known windmils or inverters near
ground)
73
Bruce-K1FZ
- Original Message -
From: "Jim in Waco WB5OXQ"
To:
Sent: Tuesday, February 11, 2014 9:02 PM
Subject: Topband: Low band noise
I live in Waco Texas and there are no known windmils or inverters nearby
that I know of. I have a lowband noise that
I live in Waco Texas and there are no known windmils or inverters nearby that I
know of. I have a lowband noise that is pretty broadband starting around 1mhz
on the am broadcast band and running almost non stop until around 2.5mhz or so.
It is a buzzing noise on am and a hetrodyne on ssb or cw
Bruce, I can't answer your wind turbine noise question on TB but while
we are on the subject and a bit off topicin the 70's a 250KW wind
turbine with metal blades was installed on the island of Culebra midway
between Puerto Rico and St. Thomas. As the blades were rotating they
would shock
Does it sound like an internal combustion engine idling, with little change
in sound or frequency over time? I hear that from time to time and have no
explanation for it.
73, Mike
www.w0btu.com
On Tue, Feb 11, 2014 at 2:58 PM, Bruce wrote:
> At times it seems to have a rhythm like a motor.
>
_
those folks are
paying a lot of attention to Power Quality!
Regards,
Charlie, K4OTV
-Original Message-
From: Topband [mailto:topband-boun...@contesting.com] On Behalf Of Bruce
Sent: Tuesday, February 11, 2014 3:58 PM
To: topband@contesting.com
Subject: Topband: Low band noise
Getting n
.@contesting.com] On Behalf Of Bill Cromwell
Sent: Tuesday, February 11, 2014 1:39 PM
To: topband@contesting.com
Subject: Re: Topband: Low band noise
Hi Bruce,
I assume your noise is on top band (just a wild guess). I will lay on plans
this weekend to drive a ways south with the R-599 on
Bruce, I can't answer your wind turbine noise question on TB but while
we are on the subject and a bit off topicin the 70's a 250KW wind
turbine with metal blades was installed on the island of Culebra midway
between Puerto Rico and St. Thomas. As the blades were rotating they
would shock
Hi Bruce,
I assume your noise is on top band (just a wild guess). I will lay on
plans this weekend to drive a ways south with the R-599 on 160 meters
AND an AM broadcast band receiver that allows some directive sniffing to
see if the windmill farm down that way is um... 'polluting'. I haven't
Getting noise from my NW direction. Does not seem to be local. Started
wondering what, at distance, could be causing it. At times it seems to have a
rhythm like a motor.
There are a lot of power generating wind mills showing up. Checking through
Google, they generate DC and convert to 3 phas
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