Asymmetrical vertical-dipole antennas for MF AM transmitting revised

A number of comments are included which will provide the reader with new insights about feeding antennas over soil and, generally, feeding antennas against limited ground planes. Trainotti (see ibid., vol.35, p.47-50, 1993, vol.38, p.75-82, 1996, and IEEE Trans. on Broadcasting, vol.37, no.3, p.106-14, 1991) has published a series of interesting papers that show by detailed numerical modeling and measurement) that an antenna system that employs a dipole-type vertical radiator can be used as a MF broadcast antenna, without the 120 buried-radial-wire ground system, which is traditionally used. Certainly this is true. The author's basic problem with the published work of Trainotti has to do with certain statements made that can be wrongly interpreted. The intention here is clarify his understanding of this antenna system. The comments from Trainotti are also included.