[amsat-bb] Re: Wind Turbine Interference?
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
>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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Ed - KL7UW
BP40IQ 50-MHz - 10-GHz www.kl7uw.com
144-EME: FT-847, mgf-1801, 4x-xpol-20, 185w
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