In reply to  mix...@bigpond.com's message of Sun, 18 Jul 2010 13:15:03 +1000:
Hi,
[snip]

To put this in perspective, in order to pick up 1 micro-Watt in total from our
10 MW transmitter, the dish would have to have a radius of 6 million km.
BTW the *closest* star to Sol is 4 ly away, not one.

>At a distance of 1 light year, a dish with a radius of 100 m would pick up 
>grand
>total of 3E-22 W from a 10 MW transmitter on Earth. I don't think there are any
>10 MW transmitters, and even if there were, a signal that small would be
>completely and utterly lost in the background noise. 
>Regards,
>
>Robin van Spaandonk
>
>http://rvanspaa.freehostia.com/Project.html
Regards,

Robin van Spaandonk

http://rvanspaa.freehostia.com/Project.html

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