What type of antenna pattern is shown in Figure E9-2?

Figure E9-2 displays an elevation pattern, which represents a vertical cross-section of the antenna's radiation. It illustrates how the antenna radiates energy at various angles upwards into the sky relative to the flat ground. You can visually identify this as an elevation plot because the angles originate from a horizontal ground line (0 degrees) and arc upwards. Azimuth patterns, by contrast, show a full 360-degree overhead view (like looking down at a compass) to illustrate directional gain horizontally. Understanding this distinction is critical because the elevation pattern tells you the "take-off angle" of your signal, which directly impacts skywave propagation and determines how far your signal will reliably bounce off the ionosphere.