Walter Maxwell wrote:


My comments are totally unrelated to elevated ground planes. I'm only
trying to prove to Jim that wave interference DOES cause energy to
shift direction without any aid of a physical entity. The only cause
of the change in direction of energy radiated from an array of dipoles
is wave interference, the interference between the waves emanting from
the different dipoles.

Walt, W2DU

The radiation pattern of an antenna is the result of the superposition
of fields either radiated or reflected from REAL surfaces. Energy from
the radiating and reflecting elements travels only in directions where
the resulting superposed fields are not zero. The resulting
interference pattern is simply the plot in 3 dimensional space of where
energy is being directed.

73, Jim AC6XG