Wasn't it Dave Gower who wrote:

"Linda" <.@.> wrote in message news:2pth0lFonvukU1@uni-berlin.de...

What's SETI looking for?

Any kind of non-natural radio emission. This would not, in my opinion, be
expected to be a communication directed towards us. It would be an emission
which is incidental to some other activity i.e. communication within their
own society, or maybe some activity we cannot guess at the present time.
Maybe there's none out there, but we won't know unless we look long and
hard.

However, omnidirectional broadcasts would be extremely unlikely to be
strong enough to be detectable at interstellar distances. We should only
realistically expect to spot narrow beams that are pointed in our
direction.


-- 
Mike Williams
Gentleman of Leisure