AMONG the facts to be explained in a satisfactory theory of the propagation of radio waves over the earth's surface are the curvature of the rays in transmission between stations far apart ...

Both modes of propagation have been very fine ... Tesla proposed that it might be possible to modify the weather, by using radio waves. I believe that this is impossible. I mean if I take really ...

The idea is to use the data coming from the beacons to determine whether radio propagation conditions are ... filtering to take off the rough square-wave edges, and/or maybe you want to boost ...