We know the radius of the earth and have a good idea of the takeoff angle from a given monopole height. The unknown variable (to me, anyway) is the approximate height of the reflecting layer in the ionosphere that affects 160m. I'm guessing that's not a constant by any means.
If we knew those, then we could calculate the location and distance of the signal hops. That might give us some insight as to why some people have found a taller monopole to be worse than a shorter one at a given distance. 73, Mike www.w0btu.com On Wed, Oct 24, 2012 at 6:33 PM, Richard Fry <[email protected]> wrote: > ... a longer monopole (up to 5/8WL) would provide better groundwave fields > and low-angle fields .. > _______________________________________________ Topband reflector - [email protected]
