For a while I (well me and some others on this forum) knew that there was a capacitor on the radiating element of the Imax antenna, we even knew where it was, but we didn't know its size. 357 came through with its size a while back, and I made an initial model based on that, and its results were surprising in several ways. The capacitor actually caused a beneficial change in the currents on the raiding element of the antenna. It also caused several other interesting effects to look in to....
Different installations of the Imax antenna at different heights.
Different installations of the Imax antenna at different heights.