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.

Most radar is also aimed tangentially or even slightly downwards, so
will have a lot of atmospheric absorption.

[ Crossposted as thread root was multiposted ]