[amsat-bb] Re: Wind Turbine Interference?
dguimon1 at san.rr.com
Sun Nov 4 23:07:36 PST 2007
At 10:26 PM 11/4/2007, you wrote:
>At 16:28 11/4/07 -0800, you 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
> 1. I have to admit I do not understand your term "reflection potential
>from any satellite".
> I would greatly appreciate an explanation of this effect and how to
>calculate its magnitude on a received satellite signal.
> 2. How do you calculate the "shadow time" (of this QRM?) to be less than
> 73s de AA1YE
>PS: Checking your QRZ entry and your bio reminds me that I learnt to fly
>"Stringbags" in WW2. But the war ended before we were deployed to a
>carrier. I should have been older or declared a false age to join.
Well, I guess I missed the point of the statements made, and
ASSUMED one was talking about hamsat xmissions, not higher powered
stations...not the first time I've screwed up!
I just loved landing on carriers...did it in from 1943 until I
retired. ....Landed on a carrier on 31 Jan 1967, as I remember USS
ORISKANY, returned to NAS Alameda on 31 Jan and retired on 1 Feb
after 24 years .. Every time I see or "hear" a two plane section go
over, I get green with envy!!
73, Dave wb6llo at amsat.org
Disagree: I learn....
Pulling for P3E...
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