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@amsat.org Disagree: I learn....
Pulling for P3E...