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