[amsat-bb] Re: Wind Turbine Interference?
dguimon1 at SAN.RR.COM
Sun Nov 4 22:46:54 PST 2007
Ed, what satellite was that??
>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
>DUBUS Magazine USA Rep dubususa at hotmail.com
73, Dave wb6llo at amsat.org
Disagree: I learn....
Pulling for P3E...
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