Re: [Nolug] E-T sending messages

From: Joey Kelly <joey_at_joeykelly.net>
Date: Wed, 18 Dec 2002 21:27:31 +0000
Message-Id: <200212190350.gBJ3oxf01067@reuben.joeykelly.net>

>Unless you have the energy of a star, wouldn't the RF energy get
>disipated (in a cubic manner) over the trillions of miles, if you
>broadcast it out?
>

Right.

Anyone up to calculating how far a million-watt radio signal has to travel
before it gets lost in the noise floor? The closest star to our system is 4
light years away, and the closest one with any kind of planet at all is like
10 light years distant. Could a 1e6-watt beam be detected out that far?

--
Joey Kelly
< Minister of the Gospel | Computer Networking Consultant >
http://joeykelly.net
I'd rather crash a Ford than wreck a Chevy
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Received on 12/18/02

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