Wasn't it ~misfit~ who wrote:

We're only looking for reapeating stuff huh? I've seen some massive spikes
on some of my units. I wonder if any of them are the result of EM from
thermonuclear explosions? That's one omnidirectional source that would be
strong enough to reach interstellar distances. Is there a war going on
somewhere that Dubya isn't in on? Man, he'll be pissed.

One awkward thing about thermonuclear explosions is that the signals
from natural ones (stars) are likely to swamp the signals from
artificial ones by many orders of magnitude. They also wouldn't appear
as spikes. They're wide spectrum sources, in fact fairly close to being
"black body" radiation. I believe that the S@H client removes such
broadband signals when it starts processing, saying "doing baseline
smoothing".

-- 
Mike Williams
Gentleman of Leisure