A 32 m diameter dish is illuminated at 37.5 MHz by a circularly polarized (y,z) source at the dish focus. The source is translated incrementally across the paraboloid in the y direction to show the shift in Poynting vector in the opposite direction. Circular currents on the dish surface are animated for oblique illumination. The source at the origin and paraboloid focus is animated. Two projections of dish current are charted for oblique illumination. dA is positioned to animated circularly polarized electromagnetic field scattered by the dish. Dish currents are displayed numerically.

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