Carl, I thought someone, maybe NASA tried this many years ago and their folley was that the universal gravitational force equation did in the whole project because once 2 particles attach to one another that doubles the mass. After that, a 3rd joins the double, and then a 4th, and so on until you have this big bunch needles doing nothing but orbiting the Earth. I don't see that this is any different. 73 Hardy N7RT
----- Original Message ----- From: <[email protected]> To: <[email protected]> Sent: Saturday, March 10, 2012 7:10 PM Subject: Re: Topband: "Artificial" Propagation...? >> But more importantly, 100 km is too >> low to provide much help to us >> Topbanders. This is far below the E >> and F layers of the ionosphere that >> we rely on for DX. > > The peak of the nighttime E region is around 110 km, so 100 km is not too > far below the E region. The lower E region is also where most absorption > at night occurs on 160m. > > More to the point, refraction is inversely proportional to the square of > the frequency. An electromagnetic wave at 1.8 MHz bends more and doesn't > get as high into the ionosphere as our HF (3-30 MHz) energy. > > At night, with the E region critical frequency around 0.4 MHz, energy at > elevation angles lower than about 5 degrees is refracted back to Earth by > the E region. > > Thus the E region may be more important than we normally think. > > Carl K9LA > _______________________________________________ > UR RST IS ... ... ..9 QSB QSB - hw? BK _______________________________________________ UR RST IS ... ... ..9 QSB QSB - hw? BK
