"David Woolley" <david@djwhme.demon.co.uk> wrote in message
news:T1084223635@djwhome.demon.co.uk...

In article <409f7f42_3@news.athenanews.com>,
steve macy <smacy@sw.rr.com> wrote:

In the radar bands, we are a bright beacon going out into space.

Consider

weather, air traffic control, military and various other radar uses.

Radar

Most radar is broadband in order to get good range resolution and

therefore

is not very bright.  About 50% of planetary radar transmissions are CW
and therefore are bright.

Interesting! From this posting, and others that you gave, it seems to me
that CW radar signals (or pilot CW signals for other applications) are the
only normal realistic ET applications that we can detect here with the SETI
microwave  program.

Since radar signals are not repeatable (correct be if I am wrong), it is
very encouraging that such (nonrepeating) CW signals is exactly what our
SETI program is finding !

Maybe the galaxy is full of ET life after all, and we already found some
strong indications of that  !!
They just dont have microwave beacons aimed at us.
And that does not suprise me considering the stellar energy cost of
narrowband microwave beacons.....

Rob