What is the difference between antenna “azimuth” and “elevation” patterns, and “horizontal” and “vertical” patterns”?
The TAP system allows you to enter both the “azimuth” antenna gain pattern (the pattern in the horizontal plane) and the “elevation” gain pattern (the pattern in the vertical plane). These two patterns must not be confused with the patterns for horizontally and vertically polarized signals. A simple dipole antenna produces a signal polarized in the same plane as the antenna. A vertically mounted dipole (or array of collinear dipoles) produces a vertically polarized signal. Likewise, more complicated antennas, such as YAGIs, with all elements in the same plane produce a signal polarized in the plane of the elements. For example, a YAGI antenna can be used to produce a vertically or horizontally polarized signal depending on the mounting orientation of the antenna. Antennas that produce a simple horizontally or vertically polarized signal can be represented by two antenna patterns: the pattern in the same plane as the elements, which is the pattern of the signal in the plane of polarizat
