[amsat-bb] Re: Wind Turbine Interference?

Edward Cole kl7uw at acsalaska.net
Sun Nov 4 17:04:53 PST 2007


Well I copied signals that were back scattered from a farm windmill 
in Texas on 10.368 GHz SSB.  Distance was about 30-miles.  I believe 
that the power being used was about 1-5w.  I was portable on a 
100-foot high hill in the Texas countryside.  Direct path did not 
produce a strong signal.

Ed - KL7UW

At 03:28 PM 11/4/2007, Dave Guimont wrote:

> >
> >Wind Turbines are a threat to Homeland Defense. They can produce large Blind
> >Spots on Radars - above, infront and behind them - so yes they can cause
> >problems to RF signals.
> >
> >
> >Effects of Windfarms on Radar
> >http://www.southgatearc.org/news/october2005/windfarms_radar.htm
> >
>
>Trevor,
>
>That is some pretty good stuff for higher powered xmitters...But I
>doubt there is any instrument sensitive enuff to measure the
>reflection potential from any satellite we will ever launch, and the
>"shadow" that it would cause on a LEO is in less than a
>second...HEO's may take a little longer....
>
>This is conjecture based on my HS physics...I would appreciate
>comments from any of the many engineering experts we have on here...
>
>
>
>             73, Dave wb6llo at amsat.org
>                     Disagree: I learn....
>
>                Pulling for P3E...
>
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73,
Ed - KL7UW
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